670
FXUS63 KFSD 310445
AFDFSD
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1045 PM CST TUE DEC 30 2025
KEY MESSAGES
- ADDITIONAL CHANCES LATER TONIGHT INTO WEDNESDAY MORNING
(20%-30%) FOR LIGHT SNOW AND PATCHY LIGHT FREEZING DRIZZLE
ACROSS MAINLY SOUTHWESTERN MN.
- SEASONALLY COOL TEMPERATURES WILL PERSIST FOR THE REST OF
THE WEEK, WARMING ABOVE NORMAL THIS WEEKEND INTO EARLY NEXT
WEEK, WITH MINIMAL PRECIPITATION CHANCES.
DISCUSSION
ISSUED AT 228 PM CST TUE DEC 30 2025
LATER TONIGHT INTO WEDNESDAY MORNING SOME SATURATION AND WEAK LIFT
MAY ALLOW FOR SOME PATCHY LIGHT SNOW OR PATCHY LIGHT FREEZING
DRIZZLE IN PARTS OF SOUTHWEST MN. CONFIDENCE IS LOW ON HOW IMPACTFUL
THIS MAY BE BUT FOR NOW IMPACTS SHOULD BE ON THE MINOR SIDE.
NORTHWEST FLOW ALOFT INCREASES TONIGHT INTO WEDNESDAY WHICH WILL
ALLOW A WEAK WAVE TO MOVE THROUGH TO THE SOUTHWEST OF THE AREA.
THIS WILL DROP SURFACE LOW PRESSURE DOWN THE MISSOURI RIVER VALLEY
INTO NE BY WEDNESDAY AFTERNOON. THIS MAY BRING SOME BRIEFLY MILD
TEMPERATURES TO LOCATIONS NEAR AND SOUTH OF I-90, BEFORE COLDER AIR
SAGS SOUTHWARD AS COLD HIGH PRESSURE BEGINS TO BUILD INTO THE AREA
WEDNESDAY NIGHT. MILD LOWS IN THE 20S AND UPPER TEENS ARE EXPECTED
TONIGHT, WITH HIGHS RANGING FROM THE MID 20S NEAR MARSHALL TO AROUND
40 ALONG THE MISSOURI RIVER ON WEDNESDAY.
AS THIS WEAK WAVE TRAVELS INTO NE, COLD AIR WILL SETTLE SOUTH ON
WEDNESDAY NIGHT. THIS SHOULD BRING LOWS BACK INTO THE SINGLE DIGITS
IN MANY LOCATIONS FOR THURSDAY MORNING WITH HIGHS MAINLY 20S AND
LOWER 30S FOR THURSDAY AFTERNOON.
WITH NORTHWEST FLOW ALOFT IN PLACE THROUGH FRIDAY THE SURFACE HIGH
PRESSURE REMAINS FAIRLY LOCKED INTO PLACE, WHICH WILL KEEP BELOW
NORMAL TEMPERATURES IN PLACE INTO SATURDAY. ALTHOUGH WITHOUT MUCH IN
THE WAY OF SNOW COVER THE FRIDAY MORNING LOW WILL NOT BE ALL THAT
COLD.
A WARMING PATTERN MOVES INTO THE AREA SATURDAY WITH UPPER LEVEL
RIDGING EXPECTED. THIS RIDGING IS EXPECTED TO REMAIN IN PLACE
THROUGH MONDAY WITH ABOVE NORMAL TEMPERATURES AND DRY CONDITIONS
THIS WEEKEND INTO EARLY NEXT WEEK.
AVIATION /06Z TAFS THROUGH 06Z THURSDAY/
ISSUED AT 1040 PM CST TUE DEC 30 2025
MVFR AND PATCHY IFR STRATUS CONTINUES TO MOVE SOUTH ACROSS THE
AREA TONIGHT. GUIDANCE CONTINUES TO VARY IN TIMING AND DURATION
OF ANY FLUCTUATIONS TO VFR CONDITIONS THROUGH THE PERIOD, SO
GENERALLY LEANED MORE PESSIMISTIC. IFR STRATUS GENERALLY SHOULD
REMAIN ACROSS SOUTHWESTERN MN.
FLURRIES AND POSSIBLY SOME DRIZZLE/FREEZING DRIZZLE, CONTINUES
OVERNIGHT ACROSS SOUTHWESTERN MN AND ADJACENT AREAS OF
NORTHWESTERN IA. ADDITIONAL PRECIP IS POSSIBLE THROUGH THE
MORNING HOURS IN THIS AREA AS WELL. LITTLE TO NO ACCUMULATION
EXPECTED.
OVERALL, WINDS REMAIN RELATIVELY LIGHT THROUGH THE PERIOD. GUSTS
TO 20 KNOTS EXPECTED WEDNESDAY AFTERNOON AND EARLY EVENING.
DIRECTION WILL VARY THROUGH THE PERIOD.
FSD WATCHES/WARNINGS/ADVISORIES
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
DISCUSSION...08
AVIATION...SG
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