458  
FXUS63 KABR 061736 AAB  
AFDABR  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE ABERDEEN SD  
1236 PM CDT TUE OCT 6 2026  
   
KEY MESSAGES  
 
- ABOVE NORMAL TEMPERATURES AND DRY CONDITIONS EXPECTED THROUGH  
SATURDAY.  
 
- PATTERN CHANGE DEVELOPING DURING THE WEEKEND LEADING TO COOLER  
TEMPERATURES NEXT WEEK.  
 
 
   
UPDATE  
 
ISSUED AT 1235 PM CDT TUE OCT 6 2026  
 
AVIATION DISCUSSION UPDATED BELOW FOR THE 18Z TAFS.  
 
UPDATE ISSUED AT 1016 AM CDT TUE OCT 6 2026  
 
ANOTHER MILD/WARM DAY ANTICIPATED ACROSS THE REGION TODAY AS  
WE'RE WELL ON OUR WAY TO HIGHS IN THE UPPER 70S TO MID 80S FOR  
MANY AREAS. WILL KEEP AN EYE ON WINDS/HUMIDITY THIS AFTERNOON,  
MORE SO OVER CENTRAL/NORTH CENTRAL SD AS THEY MAY FLIRT WITH RED  
FLAG CONDITIONS. ANY POTENTIAL FOR THIS LOOKS TO BE WEST OF THE  
MISSOURI RIVER BASED ON THE FORECAST NUMBERS. STILL EXPECTING A  
WEAK COLD FRONT TO DROP INTO THE NORTHERN CWA BY 00Z THIS  
EVENING.  
 
 
   
DISCUSSION  
 
ISSUED AT 1228 AM CDT TUE OCT 6 2026  
 
THE FRONT IS SLOWLY MOVING ACROSS THE JAMES VALLEY AND WILL  
EVENTUALLY TRAVERSE THE REST OF THE CWA BY DAYLIGHT. COLD ADVECTION  
IS RATHER WEAK, AND BUFKIT PROFILES INDICATE THERE WILL BE AN  
EXTREMELY SHALLOW INVERSION TO START THE DAY, WITH TEMPERATURES IN  
THE 50S. THUS, WITH FAVORABLE MIXING ON A WEST/NORTHWEST WIND, IT  
NOT BEING VERY COLD AND THE INVERSION WILL MIX OUT RAPIDLY... WE  
SHALL SEE TEMPERATURES JUMP QUICKLY THROUGH THE 60S INTO THE 70S.  
WHILE WE DID OVERACHIEVE IN COMPARISON TO THE NBM YESTERDAY, THIS IS  
A DIFFERENT REGIME AND AS SUCH SHOULD NOT BE A BENCHMARK ON HOW WELL  
THE NBM IS DOING GOING FORWARDS. SAME WITH DEWPOINTS, THOUGH  
UPSTREAM WE'RE SEEING 30S REPLACE THE 50S IN PLACE SO THERE IS SOME  
DRY ADVECTION. MIXED WINDS ONLY TOP OUT AROUND 15 TO 20KTS, WITH NBM  
WINDS AROUND 15 TO 25MPH. COULD BE CLOSE TO RED FLAG UP IN  
CORSON/DEWEY SO WILL NEED TO BE MONITORED.  
 
MILD FOR MID WEEK, WITH LIGHT NORTHERLY FLOW WEDNESDAY AND A SHIFT  
TO SOUTHERLY FOR THURSDAY. FOCUS SHIFTS TO THE PATTERN CHANGE COMING  
THIS WEEKEND/NEXT WEEK AS A BROAD UPPER LOW CUTS OFF OVER THE  
WESTERN CONUS. THIS INITIALLY AMPLIFIES THE RIDGE OVERHEAD WITH WELL  
ABOVE NORMAL (15 TO 20F) TEMPERATURES SATURDAY. DETERMINISTIC  
GFS/EC/CANADIAN BRING THE CORE OF WARMEST 850MB AIR, WHICH IS JUST  
JUST JUST BARELY 2 STANDARD DEVIATIONS ABOVE CLIMO, FRIDAY NIGHT,  
MEANING SOME UNCERTAINTY ON WHEN THE HOTTER AIR HITS. NBM 25TH-75TH  
PERCENTILE RANGE RUNS SOME 7 TO 10 DEGREES FRIDAY AND 3 TO 7 DEGREES  
SATURDAY. STILL SOME DIFFERENCE ON WHEN FRONTAL PASSAGE FLIPS THE  
SCRIPT AS WELL AND TEMPERATURES DROP TO SEASONAL IF NOT SLIGHTLY  
BELOW NORMAL (MONDAY NBM FORECAST 5 TO 10 BELOW NORMAL). SUNDAYS  
25TH-75TH RANGE FOR HIGHS JUMPS TO 15 TO 23 DEGREES.  
 
 
   
AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/  
 
ISSUED AT 1235 PM CDT TUE OCT 6 2026  
 
TERMINALS KABR,KATY,KPIR,KMBG  
 
VFR CONDITIONS ARE FORECAST THROUGH THE TAF PERIOD.  
 
 
   
ABR WATCHES/WARNINGS/ADVISORIES  
 
SD...NONE.  
MN...NONE.  
 
 
 
 
 
UPDATE...TMT  
DISCUSSION...07  
AVIATION...TMT  
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