363
FXUS63 KIWX 071702
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1202 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, -15F TO +5F.
- SNOW AND RAIN MIX TUESDAY AND WEDNESDAY.
- TURNING VERY COLD LATE THIS WEEK WITH HIGHS IN THE TEENS.
DISCUSSION
ISSUED AT 421 AM EST SUN DEC 7 2025
SNOW WAS JUST REACHING THE AREA WEST OF HIGHWAY 31 EARLY THIS
MORNING AT 4 AM EST. UPSTREAM VISIBILITIES WERE GENERALLY 3/4SM
TO 2SM WITH LOCALLY 1/4SM +SN OVER THE NORTHERN 1/3RD OF IL.
GIVEN THE LATEST SURFACE OBSERVATIONS, INDOT DATA, RADAR
INDICATIONS, OBSERVED SNOWFALL AMOUNTS UPSTREAM, MODEL FORECAST
AND THE LATEST TRENDS, MADE A COUPLE OF GENERALLY MINOR UPDATES
TO THE FORECAST INCLUDING SLIGHTLY HIGHER SNOWFALL AMOUNTS AND A
SLIGHTLY MORE NORTHERN TRACK. THE HEAVIEST SNOW AMOUNTS WILL
FALL NORTH OF HIGHWAY 30 AND WEST OF HIGHWAY 31. NORTHERN
LAPORTE IS EXPECTED TO RECEIVE AROUND 4 INCHES OF SNOW. LIGHTER
AMOUNTS ARE EXPECTED EAST AND SOUTH OF THIS AREA. HAVE HANDLED
THIS SYSTEM WITH A SPECIAL WEATHER STATEMENT.
OTHERWISE, MUCH COLDER AIR WILL SPREAD BACK INTO THE AREA BEHIND
THE SNOW. WINDS SHOULD REMAIN UNDER 10 MPH THROUGH MONDAY WITH
WIND CHILLS FALLING BELOW ZERO TONIGHT AND AROUND ZERO MONDAY
NIGHT. TEMPERATURES SHOULD RECOVER ABOVE FREEZING TUESDAY AND
WEDNESDAY BEFORE ANOTHER SURGE OF COLD AIR BRINGS WIND CHILLS AS
LOW AS -15F FRIDAY AND SATURDAY NIGHTS . CHANCES FOR LIGHT SNOW
WILL CONTINUE THROUGH THE END OF THE WEEK.
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...SKIPPER
AVIATION...STEINWEDEL
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