104
FXUS63 KIWX 182213
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
613 PM EDT WED MAR 18 2026
KEY MESSAGES
- 20-30% FOR A FEW RAIN SHOWERS THURSDAY MORNING.
- UNSEASONABLY MILD FRIDAY THROUGH SUNDAY WITH HIGHS IN THE 60S TO
AROUND 70.
DISCUSSION
ISSUED AT 238 PM EDT WED MAR 18 2026
LIGHT SNOW WAS ENDING FROM WEST TO EAST ACROSS THE FORECAST AREA AS
SUBSIDENCE AND AS STRONG WARM AND DRY AIR ADVECTION WAS DRYING OUT
THE UPPER CLOUD LAYER. ADDITIONAL SNOWFALL TOTALS WILL BE LESS THAN
ONE HALF OF INCH, EVEN WITH THE MEASURED 20:1 RATIO AT THE NWS
OFFICE HERE. TRAFFIC WEBSITES INDICATED ACCIDENTS EARLIER OVER
NORTHEAST INDIANA, SO INDICATIONS ARE THAT LIGHT PRECIPITATION
WAS CAUSING VEHICLE MISHAPS. TEMPERATURES WILL RISE A FEW TO
SEVERAL DEGREES ABOVE FREEZING AND SHOULD HELP IMPROVE ONGOING
SLIPPERY ROADS THAT WERE MAINLY EAST OF I-69 THIS AFTERNOON.
AS FOR THIS UPCOMING NIGHT, WARM AIR ADVECTION WITH A RELATIVELY
DRY MID LAYER ACCOMPANIED BY A WEAK SHORT WAVE TROF WILL BRING
CLOUDS AND LIGHT PRECIPITATION. SURFACE TEMPERATURES ARE
EXPECTED TO DIP A DEGREE OR TWO BELOW FREEZING AT THE COLDER
LOCATIONS (MOSTLY FAR SOUTHERN LOWER MICHIGAN). AT THIS TIME,
IT LOOK LIKE WITH THE LIGHT PRECIPITATION AND MILDER LOWS
(30F-34F) SHOULD HELP LIMIT ANY IMPACTS.
STRONG WARM AIR ADVECTION IN THE LOWER AND MID LEVELS WILL
BRING DRAMATIC WARMING OVER THE ENTIRE AREA THE NEXT 2 DAYS.
TEMPERATURES SHOULD BE 20 TO 25 DEGREES WARMER FRIDAY THEN
TODAY WITH HIGHS FRIDAY FROM 65 TO AROUND 70 ALONG AND SOUTH OF
HIGHWAY 30. THE GFS IS VERY ACTIVE WITH FRONT RACING SOUTH
SUNDAY. CONFIDENCE IS LOW ON THE TIMING AND THE POTENTIAL
INSTABILITY SUNDAY THAT COULD CAUSE MORE WIDESPREAD STORMS (A
SQUALL LINE/LINEAR COVERAGE). TEMPERATURES MONDAY WILL BE A FEW
TO SEVERAL DEGREES BELOW NORMAL.
AVIATION /00Z TAFS THROUGH 00Z FRIDAY/
ISSUED AT 613 PM EDT WED MAR 18 2026
HIGH MVFR TO LOW VFR STRATOCU LIKELY LINGERS INTO THE EARLY
EVENING. VFR OTHERWISE THROUGH THE TAF CYCLE WITH LIGHT WINDS
AND MAINLY MID LEVEL CLOUDS. A WEAK SHORTWAVE DOES TRACK THROUGH
LATER TONIGHT INTO THURSDAY MORNING WITH A LOW CHANCE (20-30%)
FOR A STRAY RAIN SHOWER. LEFT ANY MENTION OUT OF THE TAF FOR NOW
GIVEN THE LOW CONFIDENCE/IMPACT.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...SKIPPER
AVIATION...STEINWEDEL
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page