930
FXUS63 KABR 190638
AFDABR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ABERDEEN SD
138 AM CDT THU MAR 19 2026
KEY MESSAGES
-PATCHY TO AREAS OF FOG ARE POSSIBLE THIS MORNING OVER NORTHEASTERN
SD WHICH COULD CAUSE LOWER VISIBILITIES DOWN TO AROUND A HALF MILE
OR POTENTIALLY LOWER AT TIMES.
- HIGH TEMPERATURES WILL BE 15 TO 30 DEGREES ABOVE NORMAL THROUGH
SATURDAY.
- EXPECT INCREASED FIRE WEATHER CONCERNS OVER CENTRAL SD THROUGH
SATURDAY, WITH WINDS IN THE AFTERNOON GUSTING 20-30 MPH.
DISCUSSION
ISSUED AT 134 AM CDT THU MAR 19 2026
WITH WARMING TEMPERATURES MELTING THE SNOW ACROSS NORTHEASTERN SD,
THE AIR HAS FILLED WITH MOISTURE. AS DEW POINT DEPRESSIONS HAVE
DECREASED THROUGH THE NIGHT, SOME AREAS ACROSS NORTHEASTERN SD ARE
STARTING TO SEE A LITTLE BIT OF FOG DEVELOP. THE FOG POTENTIAL
WILL CONTINUE TO INCREASE INTO THE MORNING FOR THE JAMES RIVER
VALLEY AND EAST, LEADING TO PATCHY AREAS OF FOG WITH LOWER
VISIBILITIES DOWN TO A HALF MILE OR LOWER AT TIMES. AN EYE WILL BE
KEPT ON WEBCAMS AROUND THE AREA THROUGH THE MORNING TO SEE IF A
DENSE FOG ADVISORY WILL BE NEEDED.
AN UPPER-LEVEL RIDGE CONTINUES TO MOVE EAST OVER SD FOR THE NEXT FEW
DAYS, LEADING TO WARM AIR MOVING INTO CENTRAL AND NORTHEASTERN SD.
THIS WARM AIR WILL WARM TEMPERATURES 15-30 DEGREES WARMER THAN
NORMAL FOR THIS TIME OF THE YEAR, IN THE UPPER 50S TO UPPER 70S. THE
WARMER TEMPERATURES YESTERDAY HELPED TO MELT A LOT OF SNOW ACROSS
THE AREA, THOUGH SOME AREAS IN NORTHEASTERN SD STILL HAVE A BIT
LEFT. THIS SNOW WILL HELP TO KEEP TEMPERATURES A LITTLE BIT COOLER
TODAY IN THESE AREAS, IN THE UPPER 50S, UNTIL THE SNOW MELTS AND
THEN HIGHS WILL BE IN THE 60S IN THE COMING DAYS. THIS WARMTH IS
LEADING TO A COUPLE OF MAXIMUM AND WARM LOW TEMPERATURES ACROSS THE
AREA THAT GET CLOSE TO OR ABOVE RECORDS THROUGH SATURDAY.
THE WARMTH DOES LEAD TO SOME FIRE WEATHER CONCERN INTO THE WEEKEND.
THE MOISTURE FROM THE MELTED SNOW COVER WILL BE DRYING OUT FROM THE
HEAT AND LOWER RELATIVE HUMIDITY OVER THE NEXT COUPLE OF DAYS,
LEAVING BEHIND DRY CONDITIONS THAT COULD BECOME FAIRLY RIPE FOR
FIRES TO START. WIND GUSTS DURING THE AFTERNOON ARE FORECAST TO GUST
20-30 MPH OVER CENTRAL SD. CONDITIONS ARE NOT QUITE AT RED FLAG
CRITERIA, BUT THERE IS STILL FIRE WEATHER CONCERNS WITH THE
GRASSLAND FIRE DANGER INDEX VALUES GETTING UP TO HIGH AND VERY HIGH
OVER CENTRAL SD INTO SATURDAY.
DURING THE WEEKEND, A SHORTWAVE WILL SUPPRESS THE RIDGE AND HELP A
COLD FRONT TO MOVE SOUTH THROUGH SD. THIS COLD FRONT WILL CAUSE
TEMPERATURES TO DROP SATURDAY NIGHT INTO SUNDAY AND CAUSE AROUND
NORMAL TEMPERATURES THROUGH THE END OVER THE WEEKEND INTO NEXT WEEK.
THE FRONTAL PASSAGE WILL ALSO PROVIDE THE FORCING NEEDED FOR THE
NEXT CHANCE OF PRECIPITATION SATURDAY NIGHT INTO SUNDAY MORNING. NOT
ALL OF THE MODELS SHOW PRECIPITATION OCCURRING AS THE FRONT MOVES
INTO CENTRAL AND NORTHEASTERN SD DUE TO THE LACK OF MOISTURE IN THE
ATMOSPHERE OVER THE AREA. DESPITE THIS, MORE MODELS ARE SHOWING
PRECIPITATION MOVE INTO NORTHERN SD, BUT THERE ARE STILL LOWER
CHANCES, 20-35% CHANCE, AT THE MOMENT. OTHER THAN THIS,
PRECIPITATION IS FORECAST TO STAY OUT OF CENTRAL AND NORTHEASTERN SD
FOR A FEW DAYS.
AVIATION /06Z TAFS THROUGH 06Z FRIDAY/
ISSUED AT 1243 AM CDT THU MAR 19 2026
TERMINALS KABR,KATY,KPIR,KMBG
ANTICIPATING FOGGY CONDITIONS WILL BECOME AN ISSUE AT KABR/KATY
TERMINALS THIS MORNING. IFR/LIFR VSBYS AND MVFR/IFR CIGS WILL BE
POSSIBLE LATER THIS MORNING, DURING THE PRE-DAWN HOURS AND
PERSISTING UNTIL ABOUT MID MORNING. VFR CONDITIONS ARE THEN
EXPECTED TO RETURN BY LATE MORNING. KPIR/KMBG SHOULD REMAIN FREE
OF ANY FOGGY CONDITIONS, SO EXPECT VFR CONDITIONS WILL PREVAIL AT
THESE TERMINALS DURING THIS FORECAST CYCLE.
ABR WATCHES/WARNINGS/ADVISORIES
SD...NONE.
MN...NONE.
DISCUSSION...12
AVIATION...VIPOND
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