006
FXUS63 KIWX 071957
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
257 PM EST SUN DEC 7 2025
KEY MESSAGES
- SNOW WILL CONTINUE TO DIMINISH EARLY THIS AFTERNOON WITH
LITTLE TO NO ADDITIONAL ACCUMULATION.
- COLD WIND CHILLS TONIGHT AND MONDAY NIGHT, -10F TO +5F.
- WARMER TEMPERATURES WITH PERIODS OF SNOW AND A RAIN MIX
TUESDAY AND WEDNESDAY.
- TURNING VERY COLD AGAIN LATE THIS WEEK WITH HIGHS IN THE
TEENS.
DISCUSSION
ISSUED AT 228 PM EST SUN DEC 7 2025
IN THE WAKE OF THE CLIPPER TYPE SYSTEM THAT HAD BROUGHT THE
BURST OF SNOWFALL EARLIER TODAY AND CONTINUES TO MOVE
EASTWARD ANOTHER SHOT OF ARCTIC AIR WILL SPILL SOUTHWARD INTO
THE AREA TONIGHT. SOME LIGHT FLURRIES/SNOW SHOWERS MAY ACCOMPANY
INITIALLY THE COLD AIRMASS AS IT PUSHES SOUTHWARD ACROSS THE CWA.
LOW TEMPERATURES TONIGHT WILL DROP DOWN INTO THE SINGLE DIGITS
AND WIND CHILL READINGS WILL DROP BELOW ZERO RANGING FROM ABOUT
-5 TO -10 DEGREES. AS WE HAVE SAID IN PREVIOUS DISCUSSIONS ONE
SHOULD DRESS PROPERLY FOR THE COLD AS EXPOSED SKIN COULD BECOME
FROST BITTEN IN A VERY SHORT TIME. ALSO, DON'T FORGET THE PETS
OR LIVESTOCK AND PROTECT THEM.
THIS COLD AIR REMAINS THROUGH MONDAY WITH HIGHS ONLY IN THE
LOWER TO MID 20S AND OVERNIGHT INTO TUESDAY MORNING LOWS WILL BE
SLIGHTLY WARMER THAN MONDAY MORNING WITH LOWS RIGHT AROUND 10
DEGREES WITH WIND CHILLS NEAR ZERO. HOWEVER, WARM AIR ADVECTION
AHEAD OF ANOTHER SHORTWAVE MOVING SOUTHEASTWARD IN THE
NORTHWESTERLY FLOW ALOFT WILL HELP TO MODERATE TEMPERATURES
FAIRLY QUICKLY ON TUESDAY WITH HIGHS GETTING INTO THE MID TO
UPPER 30S. WILL HAVE TO SEE IF TEMPERATURES MAY BE A BIT DULLED
BY THE SNOWY GROUND COVER. ALSO WILL BE KEEPING AN EYE TO SEE
IF WE GET A BIT OF ADVECTION FOG ESPECIALLY DURING THE OVERNIGHT
PERIODS TUESDAY THROUGH WEDNESDAY. THIS DISTURBANCE WILL ALSO
BRING PERIODS OF INCREASED CHANCES OF RAIN/SNOW MIX. THERE WILL
BE PERIODS WHERE IT COULD SWITCH OVER TO MAINLY RAIN SHOWERS.
THE OTHER POTENTIAL HERE WOULD BE SOME FREEZING RAIN DUE TO THE
VERY COLD SURFACES FROM THE RECENT DEEP FREEZE.
THURSDAY A DEEPER TROUGH PUSHES SOUTH OUT OF CANADA AND WE WILL
SEE YET ANOTHER PUNCH OF ARCTIC AIR INTO THE WEEKEND. THURSDAY
HIGHS WILL DROP BACK INTO THE MID 20S AND LOW TEMPERATURES BY
FRIDAY MORNING BACK INTO THE LOW TEENS ACROSS THE AREA. FRIDAY'S HIGHS
SLIGHTLY COLDER WITH VALUES ONLY GETTING INTO THE LOWER 20S.
BUT BECOMING EVEN COLDER BY THE WEEKEND WITH SINGLE DIGIT LOWS
FOR BOTH SATURDAY AND SUNDAY MORNING. HIGHS ON SATURDAY AND
SUNDAY WILL ONLY REACH THE MID TEENS.
AVIATION /18Z TAFS THROUGH 18Z MONDAY/
ISSUED AT 1202 PM EST SUN DEC 7 2025
LIGHT SNOW AND PREDOMINATELY IFR CONDITIONS WILL TAPER OFF
SHORTLY AFTER ISSUANCE AT KFWA, THOUGH IFR TO MVFR CIGS SHOULD
LINGER THROUGH THE REMAINDER OF THE AFTERNOON BEFORE DRIER AIR
ADVECTS IN BEHIND THIS MORNING'S CLIPPER SYSTEM. SNOW HAS
GENERALLY ENDED AT KSBN WITH GRADUAL IMPROVEMENT INTO MVFR/VFR
THIS AFTERNOON. VFR/DRY OTHERWISE TONIGHT INTO TOMORROW MORNING
WITH LIGHT WINDS.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 4 AM EST MONDAY FOR LMZ043-046.
DISCUSSION...ANDERSEN
AVIATION...STEINWEDEL
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