355  
FXUS63 KABR 312325 AAA  
AFDABR  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE ABERDEEN SD  
525 PM CST WED DEC 31 2025  
   
KEY MESSAGES  
 
- TEMPERATURES SUNDAY THROUGH WEDNESDAY OF NEXT WEEK WILL BE BETWEEN  
5 TO 15 DEGREES ABOVE NORMAL. DRY CONDITIONS ARE ANTICIPATED THROUGH  
THAT SAME PERIOD.  
 
 
   
UPDATE  
 
ISSUED AT 521 PM CST WED DEC 31 2025  
 
THE FORECAST REMAINS ON TRACK THIS EVENING AS STRATUS SLOWLY SINKS  
SOUTHWEST WITH THE BACKDOOR/ARCTIC COLD FRONT. NO MAJOR CHANGES  
PLANNED, JUST TWEAKS TO HOURLY SKY COVER.  
 
 
   
DISCUSSION  
 
ISSUED AT 142 PM CST WED DEC 31 2025  
 
A COLD FRONT CONTINUES TO SINK SOUTHWESTERLY OVER THE FORECAST AREA  
THIS AFTERNOON, WITH A BANK OF FOG PERSISTING WITHIN THE COLDER AIR  
BEHIND THE FRONT. THIS FOG HAS BEEN FAIRLY TRANSIENT, MOVING OFF  
WITHIN AN HOUR AT MOST LOCATIONS. HOWEVER WHILE FOG IS PRESENT,  
VISIBILITIES HAVE DROPPED TO BETWEEN A HALF AND A QUARTER OF A MILE.  
BEHIND THE FRONT, TEMPERATURES AND DEW POINTS WILL CONTINUE TO DROP  
NON-DIURNALLY, AS HIGHS TODAY WILL HAVE BEEN OUT AHEAD OF THE FRONT  
THIS MORNING. SOME STRONG POST-FRONTAL WIND GUSTS (20-30 MILES PER  
HOUR) WILL LINGER THROUGH THE REMAINDER OF THE AFTERNOON BEFORE  
SUBSIDING THIS EVENING AND OVERNIGHT. DUE TO THE COMBINATION OF  
THESE WINDS AND WARMER TEMPERATURES IN THAT AREA (DUE TO BEING OUT  
AHEAD OF THE FRONT FOR SO MUCH LONGER), PARTS OF CENTRAL SOUTH  
DAKOTA WILL HAVE A HIGH GRASSLAND FIRE DANGER INDEX THIS AFTERNOON.  
 
THE UPPER-LEVEL PATTERN OF THE RIDGE OVER THE WESTERN CONUS IS  
EXPECTED TO CONTINUE, LEADING TO BENIGN CONDITIONS AND TEMPERATURES  
5-15 DEGREES ABOVE NORMAL OVER THE ABERDEEN FORECAST AREA FROM  
THURSDAY THROUGH EARLY NEXT WEEK. A FEW JET STREAKS ARE EXPECTED TO  
RIDE DOWN THE FRONT SIDE OF THE RIDGE DURING THIS TIME, PRODUCING  
SNOW IN PARTS OF NORTH DAKOTA AND MINNESOTA. WHILE THESE CLIPPER  
SYSTEMS ARE NOT CURRENTLY EXPECTED TO IMPACT THE ABERDEEN FORECAST  
AREA, IT WILL BE WORTH KEEPING AND EYE ON THE OVERALL PATTERN AND  
THE TRACKS OF THESE SYSTEMS, AS A SLIGHT SHIFT TO THE SOUTHWEST  
WOULD BE ENOUGH FOR SOME FLURRIES OR SOME MINOR SNOWFALL TO CLIP  
NORTHEASTERN SOUTH DAKOTA AND/OR WEST CENTRAL MINNESOTA. ENSEMBLE  
CLUSTER ANALYSIS SHOWS A SIGNAL FOR THE BREAKDOWN OF THIS PATTERN BY  
MID-WEEK NEXT WEEK, WHICH WILL SUPPORT ZONAL FLOW ALOFT AND A  
POTENTIAL FOR A SLIGHT DECREASE IN TEMPERATURES TO NEAR-NORMAL.  
 
 
   
AVIATION /00Z TAFS THROUGH 00Z FRIDAY/  
 
ISSUED AT 521 PM CST WED DEC 31 2025  
 
TERMINALS KABR,KATY,KPIR,KMBG  
 
IFR/MVFR CIGS EXPECTED TO IMPROVE AT KABR/KATY AS STRATUS SINKS  
SOUTHWEST AT THE EDGE OF THE ARCTIC FRONT. ADDITIONAL MVFR STRATUS  
MAY DEVELOP THURSDAY AFTERNOON/EVENING.  
 
 
   
ABR WATCHES/WARNINGS/ADVISORIES  
 
SD...NONE.  
MN...NONE.  
 
 
 
 
UPDATE...20  
DISCUSSION...BC  
AVIATION...20  
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