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Your Page for The Berg Timer Indicator
Helping you in your weather and flight delay forecasting needs
Precipitation Maps

BT Precipitation Map Maker Here
 

The Berg Timer Values & BT Profile Numbers for Weather and Travel Forecasting   

Below are the Berg Timer values for the next couple months.  I hope this helps because I know some of you have your own unique uses for it.  The owners of the WEF trading system use it for determining its trading signals.  
Days in red are when BT >= 7 strength.  If planning airline travel you can find the BT Profile Numbers from the table below (they're the ones in black) for the numbers on your expected travel dates and then consult the Airline Travel Delays profile chart just below the Table to see if your travel day's numbers are in the high probability levels for travel delay.
 
Microsoft Excel Chart
Microsoft Excel Chart
  
      The BERG TIMER                                                            
  January thru April, 2020                                Table of Daily Berg Timer Profile Numbers
1/1
0
3/1
4
Wed
1/1
12
-8
Sun
3/1
9
-6
1/2
1
3/2
2
Thu
1/2
-7
Mon
3/2
10
-5
1/3
4
3/3
2
Fri
1/3
-6
Tue
3/3
11
-4
1/4
3
3/4
5
Sat
1/4
-5
Wed
3/4
12
-3
1/5
0
3/5
2
Sun
1/5
-4
Thu
3/5
-2
1/6
3
3/6
0
Mon
1/6
-3
Fri
3/6
-1
1/7
2
3/7
9
Tue
1/7
-2
-12
Sat
3/7
0
1/8
0
3/8
2
Wed
1/8
-1
-11
Sun
3/8
1
1/9
15
3/9
1
Thu
1/9
0
-10
Mon
3/9
2
1/10
3
3/10
2
Fri
1/10
1
-9
Tue
3/10
3
1/11
0
3/11
1
Sat
1/11
2
-8
Wed
3/11
4
1/12
3
3/12
0
Sun
1/12
3
-7
Thu
3/12
5
1/13
1
3/13
0
Mon
1/13
4
-6
Fri
3/13
6
1/14
1
3/14
0
Tue
1/14
5
-5
Sat
3/14
7
1/15
1
3/15
1
Wed
1/15
6
-4
Sun
3/15
8
1/16
3
3/16
0
Thu
1/16
7
-3
Mon
3/16
9
1/17
2
3/17
1
Fri
1/17
8
-2
Tue
3/17
10
1/18
2
3/18
6
Sat
1/18
9
-1
Wed
3/18
11
1/19
15
3/19
3
Sun
1/19
10
0
Thu
3/19
12
1/20
0
3/20
2
Mon
1/20
11
1
Fri
3/20
1/21
4
3/21
3
Tue
1/21
12
2
Sat
3/21
1/22
2
3/22
1
Wed
1/22
3
Sun
3/22
1/23
3
3/23
1
Thu
1/23
4
Mon
3/23
1/24
3
3/24
1
Fri
1/24
5
Tue
3/24
1/25
0
3/25
3
Sat
1/25
6
Wed
3/25
1/26
2
3/26
2
Sun
1/26
7
Thu
3/26
1/27
1
3/27
2
Mon
1/27
8
Fri
3/27
1/28
4
3/28
2
Tue
1/28
9
Sat
3/28
1/29
4
3/29
2
Wed
1/29
10
Sun
3/29
1/30
1
3/30
1
Thu
1/30
11
Mon
3/30
1/31
1
3/31
4
Fri
1/31
12
Tue
3/31
2/1
3
4/1
1
Sat
2/1
Wed
4/1
2/2
1
4/2
3
Sun
2/2
Thu
4/2
2/3
4
4/3
0
Mon
2/3
-12
Fri
4/3
2/4
1
4/4
0
Tue
2/4
-11
Sat
4/4
2/5
2
4/5
2
Wed
2/5
-10
Sun
4/5
2/6
2
4/6
3
Thu
2/6
-9
Mon
4/6
2/7
0
4/7
1
Fri
2/7
-8
Tue
4/7
2/8
3
4/8
4
Sat
2/8
-7
Wed
4/8
2/9
2
4/9
2
Sun
2/9
-6
-12
Thu
4/9
2/10
3
4/10
0
Mon
2/10
-5
-11
Fri
4/10
2/11
0
4/11
0
Tue
2/11
-4
-10
Sat
4/11
2/12
3
4/12
3
Wed
2/12
-3
-9
Sun
4/12
2/13
0
4/13
1
Thu
2/13
-2
-8
Mon
4/13
2/14
6
4/14
1
Fri
2/14
-1
-7
Tue
4/14
2/15
10
4/15
3
Sat
2/15
0
-6
Wed
4/15
2/16
3
4/16
1
Sun
2/16
1
-5
Thu
4/16
2/17
1
4/17
0
Mon
2/17
2
-4
Fri
4/17
2/18
3
4/18
2
Tue
2/18
3
-3
Sat
4/18
2/19
2
4/19
1
Wed
2/19
4
-2
Sun
4/19
2/20
3
4/20
2
Thu
2/20
5
-1
Mon
4/20
2/21
7
4/21
2
Fri
2/21
6
0
Tue
4/21
2/22
4
4/22
1
Sat
2/22
7
1
Wed
4/22
2/23
0
4/23
1
Sun
2/23
8
2
Thu
4/23
2/24
1
4/24
1
Mon
2/24
9
3
-12
Fri
4/24
2/25
1
4/25
3
Tue
2/25
10
4
-11
Sat
4/25
2/26
4
4/26
0
Wed
2/26
11
5
-10
Sun
4/26
2/27
0
4/27
2
Thu
2/27
12
6
-9
Mon
4/27
2/28
1
4/28
0
Fri
2/28
7
-8
Tue
4/28
2/29
0
4/29
0
Sat
2/29
8
-7
Wed
4/29
4/30
1
Thu
4/30
   
How To Make Precipitation Forecast Maps Using the BT Table Numbers Above
In my map-making, each state is colored individually light or dark blue depending on whether the state's profile has a low or high probability for precipitation on each particular day.  A state's probability depends on its Precipitation Profile's major or minor peaks.  Each state's Precipitation Profile is published below further down on this page.  
 
The dark black BT Daily Profile Numbers in the table above are used to find out the probability for precipitation in your area.  
For instance, let's say you're traveling on May 29 or 30 and and are wondering if it will rain during those two days.  Then let's say you look above in the BT Profile Numbers Table for those two days and see a -9 and -8 occurring on those days.  Then you would look at your state's Precipitation Profile below down the page and find your state's profile.  If the profile peaks on day -9 and/or -8, then chances are high that it will rain on those two dates.  
For instance, if you want to know precipitation probability in Alabama, you can see further down in the page below in the Alabama Precipitation Profile that -10, -9, -4, 0, and 8 are strong days for likely rain.  Or easier, just look at the table below, giving you the likelihood for rain based on your state's rain profile, 1 for high probability and 2 for above average.  So when the numbers -10, -9, -4, 0, 8 come up in the table above, then you'll know that it's likely to rain or at least be overcast, on those days.  when those the Table above, which , is higher than average probability for rain.  That's all there is to it.  It works the same for every other profile.  You can look at the Airlines Delay Profile below the table below to see that days -9 and -8 are very strong days.  So Airline Delays will be likely when -9 and -8 comes up in the BT Profile Numbers Table above.  The BT Profile Numbers Table above is updated about every two months.

Below is a table of whether or not a state has a high or average precipitation probability for each of the profile numbers listed at the top of the table from -12 to 12.  The 1 (high) or 2 (avg) stands for high or low probability for precipitation.  So, for instance, Alabama's profile for precipitation has a strong peak, a 1, at days -10, -9, -4, 0, and 8.  And a lower strength peak, an average probability for precipitation, on day 8, shown by a 2.
The table below and profiles are fixed and never change.  It's based on 12 years of precipitation history in each state.  Also you might want to check out the probability of states surrounding your state.  A surrounding state with a high probability for rain increases the probability for your own state.
And when a state's profile bottoms it means that there is a lower then average probability for rain on those days.  See in the Alabama profile a strong bottom on day -6.  When -6 comes up in the BT Profile Numbers Table above then is unlikely it will rain on that day.  Of course, nothing's for sure.  But if you're planning for an outing in the future you'll increase your chances for a nice day by using this forecasting tool.

You can make your own U.S. map for every state if you want to see the whole areas possible for rain like I did in the U.S. maps.  Below is the blank U.S. map I used to create the precipitation maps.  The directions to color in the days is next below.


Making your own U.S. rain probability map

Refer to the date desired above in the BT Profile Numbers Table, write the numbers down for that day.  Then right click on the U.S. map above, click Copy, and paste it into the Paint program.  Activate the "Fill With Color" bucket icon in the Home area of the Paint menu, then choose the color you want to use, maybe the dark blue and light blue.  Now you're ready to paint the states.  Refer to the table below to find out which states to paint and what color to paint them, the high probability color or the low probability. color.  

For instance, if -12 is one of the numbers you wrote down, see the column of states under -12 that need to be colored.  

The '1' numbers are painted the high probability color and '2' is for the above average probability color.  

See that the states in the -12 column are N. and S. Florida, Hawaii, Iowa, Maine, Mississippi, Nebraska, New Jersey, North Carolina, Tennessee, and Key West.  Those all get painted the appropriate color.  Again, The '1' numbers are painted the high probability color and '2' is for the above average probability color.  North and South Florida both have 1's so they both are painted the high probability color.

If there's more than one number that you wrote down for your day, then paint the states in the column for that number, too etc..  If a state has both a 1 and a 2 color to be painted you would simply just paint it for the '1' color since it's the stronger probability color.  That's it!  

After your painted day is over, if you want to see what happened, the "actual precipitation" charts that I published are available at:
https://www.wpc.ncep.noaa.gov/dailywxmap/  .  Note that since the above blank map is "second hand", the coloring won't be very crisp around the edges.  But it still serves its purpose.

Of course, remember, if you want to know just your state or yours and surrounding states, you can just look at the state profiles published below, just further down on this page to see your state's profile.  Peaks are high probability days and less strong peaks are above average probability days.  Write down those days and then look at the BT Profile Numbers Table above on this page to see when those numbers of your state's profile occur.  It's most likely to rain on those days in your state.  The BT values and Profile Table numbers will be updated at least a couple months ahead for your forecasting needs.
Note that the state precipitation profiles show you more than even the mapping does.  The lowest points in a state's profile are the days of lowest probability for precipitation.  Those of course can also be mapped as soon as I can make a table like the one below for the lowest days for each state.  
Good mapping!

The (1's) are major peaks and the (2's) are minor peaks of each state's Precipitation Profile. The -12 to 12 are the number of days before/after a Profile's '0' day.
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
Alabama
1
1
1
1
2
1
Alaska
2
1
1
2
1
1
Arizona
1
2
1
2
Arkansas
2
1
1
2
2
California N.
2
1
2
2
2
California S.
2
1
1
1
Colorado
1
1
1
2
2
Connecticut
1
2
2
1
1
2
Delaware
1
1
2
1
1
1
Florida N.
1
1
1
2
1
1
1
Florida S.
1
2
2
2
1
2
1
Georgia
2
2
1
1
2
1
2
Hawaii
1
1
1
2
2
1
2
1
2
Idaho
1
1
1
1
2
2
1
Illinois
2
1
1
1
2
2
2
1
Indiana
2
1
2
1
2
2
2
Iowa
2
1
2
2
1
1
2
2
Kansas
1
1
1
1
2
Kentucky
2
1
2
1
2
2
1
2
2
Louisiana
2
2
2
1
1
2
2
Maine
2
1
2
2
1
1
2
2
1
2
Maryland
1
1
2
1
1
1
Massachusetts
2
1
2
1
1
1
Michigan
1
2
1
1
2
Minnesota
1
2
2
1
Mississippi
1
2
2
2
2
1
1
Missouri
2
2
2
1
1
1
2
Montana
2
1
2
2
1
2
2
Nebraska
1
2
1
2
1
2
2
2
Nevada
2
1
2
2
1
2
2
1
1
New hampshire
1
2
2
1
2
2
2
2
1
1
2
NewJersey
2
1
2
2
1
1
2
2
NewMexico
1
1
1
1
2
2
1
2
1
NewYork
1
2
1
2
2
2
1
1
2
North Dakota
1
1
1
1
2
2
2
1
NorthCarolina
1
1
2
1
2
1
Ohio
2
1
1
2
2
2
1
1
2
Oklahoma
2
2
1
1
2
1
2
Oregon
1
2
1
2
2
1
2
Pennsylvania
1
1
2
2
1
1
Rhode Island
1
2
2
1
1
2
South Carolina
1
2
1
1
South Dakota
1
2
1
2
1
2
1
2
Tennessee
2
1
2
1
2
2
1
1
Texas E.
1
1
2
2
2
2
2
1
2
2
Texas W.
2
1
1
2
1
1
2
Utah
2
1
2
1
2
2
1
1
Vermont
1
2
2
1
2
2
2
2
1
1
2
Virginia
2
1
2
2
1
2
1
1
2
2
Washington
2
1
1
1
2
2
2
2
WestVirginia
2
1
2
1
2
2
1
2
Wisconsin
1
1
2
1
2
2
Wyoming
1
1
1
1
2
2
1
Key West
1
2
1
2
2
1
2
2
1
USA
2
2
1
2
2
1
1
2
1
2
1


U.S. STATES' PROFILES

 
 
 
 
 
 
 
 
Microsoft Excel Chart
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
  

Airline Delays

For airline delays you would check Dallas, New York, and/or Chicago profiles since extreme weather in any of the major hubs will cause delays everywhere.  

But an easier way is to just look at the Airline Delays profile below.  See that Airline Delays peaks during the 9 days prior to when BT is equal to 7 strength or above (day '0').  That's a good reason not to fly in the week before and including strong BT, the '0' day.  Four days after day '0' is the lowest delay time period.  
There was a huge delay on Sunday November 25, 2018 due to a winter storm.  That day was a -4 day according to the Table of Profile Numbers and was known infinitely early.  Thousands could have avoided that delay by using BT to plan their travel dates. 

Delays data source:  https://www.transtats.bts.gov/ONTIME/Airline.aspx  
Weather data source:  (very accurate) http://www.frontierweather.com/weatherdatastore.html
Days' probability for Airline Delays ---
High: -11 -9 -8 -7 -6 -4 -3 -2 0 9 10   Average: -12 -5 -1 1 5 6 7 11 12  Low: -10 2 3 4 8

    
A very good comparison between Airline Delays and U.S. Precipitation.  One indice confirmed by another is a great thing to see.
If you can arrange it, don't fly in the nine days preceeding a Berg Timer day with strength of 7 or above.  


The Berg Timer Precipitation Forecast Maps
answeringWhen’s it gonna rain?
(and what are the best days to fly?)

by Larry Berg
www.justgoodtiming.com

weather results charts courtesy of:
https://www.wpc.ncep.noaa.gov/dailywxmap/



Paintbrush Picture
Everybody talks about the weather, but nobody does anything about it.
Charles Dudley Warner, but generally credited to his friend, Mark Twain.  The Hartford Courant, August 27, 1897


Daily forecasts (blue) & results (greenyelloworange)
The Berg Timer is based on planetary positions.  So the BT forecasts are known infinitely into the future with no loss of reliability.
How are these forecasts made?  Daily precipitation data was accumulated for 2 to 6 locations in each state, depending on the state's size, for 217 U.S. cities from 2006 to 2017.  Then the daily data was averaged for each state and pasted into my profiler spreadsheet which then automatically displays the profile chart for each state (like the ones shown in the page above).  A state's profile shows its historical precipitation in relation to strong Berg Timer days, days '7' strength or higher.  
Based on each state's profile and the Berg Timer for a particular future day they're mapped and published.
The maps are quite accurate because planetary positions, as represented by BT, have empirically been proven to be highly representative of Earth weather changes.  
You'll often notice the blue areas noticeably moving across the U.S. from west to east, accurately forecasting the weather fronts and even isolated pockets of weather that pop up out of nowhere.
That's all there is to it.  Stay dry!


Daily precipitation maps have been discontinued due to time constraints.  Above on this page are instructions on how to make a precipitation map for your desired time and place.
Announcements of published future maps will be made on the home page at "Click for latest comments or research" link.   
Regards,
Larry.

***Holiday maps have been added below from December 20 to the end of the year.
Looks like stormy weather will be moving into the Northwest on December 22.  Then moving east into the upper Midwest by December 24-25, then fizzles out in the Northeast on the 27th.  Then another system develops in Nebraska area and moves east covering the whole East Central area from north to south by year end.  Slippery New Year there!

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                      Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture    

                                        Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- Average                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                    Paintbrush Picture

                                            Airline Delay --- Average                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                     Paintbrush Picture                    Paintbrush Picture

                                            Airline Delay --- Low                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                      Paintbrush Picture                    Paintbrush Picture

                                            Airline Delay --- Low                                                        Airline Delay --- Low
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture
                                            Airline Delay --- High                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                      Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                         Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                     Paintbrush Picture                        Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                      Paintbrush Picture                  Paintbrush Picture

                                        Paintbrush Picture                     Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                      Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture
                                        Paintbrush Picture                      Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                      Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                       Paintbrush Picture                  Paintbrush Picture

                                         Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                 Due to low Berg Timer values, there are no precipitation maps between September 21 and October 14.

                                      Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- Average                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                      Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                      Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- Low                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                     Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- Average                                                         Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- Low                                                         Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- Low                                                         Airline Delay --- Low
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                       Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                  Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____


                                     Paintbrush Picture                 Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                      Paintbrush Picture                  Paintbrush Picture

                                            Airline Delay --- Low                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                     Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                    Paintbrush Picture                    Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                       Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                     Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                     Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                    Paintbrush Picture                 Paintbrush Picture

                                    Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture                 Paintbrush Picture

                                      Paintbrush Picture                 Paintbrush Picture

                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                       Paintbrush Picture                 Paintbrush Picture
                                            Airline Delay --- High                                                         Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                       Paintbrush Picture                 Paintbrush Picture
                                           Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture             Paintbrush Picture

                                      Paintbrush Picture                 Paintbrush Picture
                                           Airline Delay --- High                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                      Paintbrush Picture                 Paintbrush Picture
                                           Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                         Paintbrush Picture                 Paintbrush Picture
                                           Airline Delay --- High                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture
                                          Paintbrush Picture              Paintbrush Picture
                                           Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                     Paintbrush Picture                 Paintbrush Picture
                                           Airline Delay --- Average                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                      Paintbrush Picture                 Paintbrush Picture

                                           Airline Delay --- Average                                                        Airline Delay --- Average
       ___________________________________________________________ _____

* There are no strong Berg Timer days within the 12 day window from July 26 to 29 so no forecast maps during that time.  
Airline Delay category is then Low.

                                     Paintbrush Picture              Paintbrush Picture

                                     Paintbrush Picture                 Paintbrush Picture
                                           Airline Delay --- Average                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                     Paintbrush Picture              Paintbrush Picture
                                             Airline Delay --- High                                                        Airline Delay --- High
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                       Paintbrush Picture              Paintbrush Picture
                                           Airline Delay --- Average                                                        Airline Delay --- Low
       ___________________________________________________________ _____

                                     Paintbrush Picture              Paintbrush Picture

                                     Paintbrush Picture              Paintbrush Picture
                                           Airline Delay --- High                                                        Airline Delay --- Average
       ___________________________________________________________ _____

                                    Paintbrush Picture              Paintbrush Picture

                                     Paintbrush Picture              Paintbrush Picture
                                           Airline Delay --- Low                                                        Airline Delay --- High
       ___________________________________________________________ _____
 
Tornadoes
Tornadoes are most often the result of strong low pressure fronts that move out of the Rocky Mountains into middle America, pulling up warm air from the south which combines with the cool atmospheric precipitates to form strong updrafting tornadoes.
They occur most often exactly when the Berg Timer is greater than or equal to '7' strength.  Of course this is only during the Spring to Autumn months of the year and in the continental U.S. east of the Rocky Mountains.  To find the most likely tornado days you can refer to the BT day values listed above in this page.

tornado data source: NOAA's Storm Prediction Center




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