174
FXUS63 KIWX 242323
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
723 PM EDT SAT OCT 24 2026
KEY MESSAGES
- PLEASANT WEATHER PERSISTS THROUGH THE UPCOMING WEEK WITH
HIGHS AROUND 70, LOWS IN THE 40S, AND NO RAIN EXPECTED.
- AREAS OF FOG POSSIBLE EARLY MONDAY MORNING ALONG THE I-69
CORRIDOR AND INTO NORTHWEST OHIO.
DISCUSSION
ISSUED AT 155 PM EDT SAT OCT 24 2026
STRONG UPPER-LEVEL RIDGING PERSISTS THIS AFTERNOON WITH SURFACE
HIGH PRESSURED NOTED OVER THE NORTHEAST. AS A RESULT, STATUS-
QUO ON THE FORECAST OVERALL INCLUDING CRUISE-CONTROL
TEMPERATURES WITHIN A COUPLE OF DEGREES THESE NEXT TWO DAYS.
WE'LL BE MONITORING FOR FOG TONIGHT INTO EARLY MONDAY MORNING.
GUIDANCE APPEARS MOST KEEN ON THE I-69 CORRIDOR INCLUDING
NORTHWEST OHIO, YET LIGHT SURFACE WIND FROM THE SOUTH MAY LIMIT
ANY LAKE ERIE MOISTURE ADVECTION, WHILE RADIATIONAL COOLING
APPEARS TO BE SUFFICIENT.
LOW PRESSURE OVER MANITOBA THIS AFTERNOON FEATURES A COLD FRONT
DRAPED ACROSS THE CENTRAL AND NORTHERN PLAINS. THIS FRONT ATTEMPTS TO
SEEP OVER OUR AREA TUESDAY AS IT GETS HUNG-UP ATOP OUR PERSISTENT
UPPER-LEVEL RIDGE. THIS WILL KNOCK TEMPERATURES DOWN A FEW DEGREES
TUESDAY, YET TEMPERATURES WILL STILL BE WELL ABOVE NORMAL (NORMAL
HIGH/LOW 60/40). OTHERWISE, REMAINING VERY MILD AND DRY THIS WEEK
WITH OUR NEXT CHANCE FOR ANY RAIN NOT ARRIVING UNTIL PERHAPS
THURSDAY AFTERNOON (20% CHANCE) AS ANOTHER FRONT ATTEMPTS TO CROSS
OUR RIDGE. THE ABUNDANCE OF DRY AIR AND OVERALL ABSENCE OF FORCING
LEAVES ME UNIMPRESSED. INSTEAD, LATE NEXT WEEKEND INTO EARLY
NOVEMBER LOOKS TO BE THE BETTER OPPORTUNITY TO END OUR DRY SPELL
WITH LOW PRESSURE EMERGING FROM THE SOUTHERN/CENTRAL PLAINS.
AVIATION /00Z TAFS THROUGH 00Z MONDAY/
ISSUED AT 722 PM EDT SAT OCT 24 2026
SURFACE HIGH PRESSURE STALLS OVER THE NORTHEAST AS A COLD FRONT
SLOWS DOWN ITS APPROACH FROM THE NORTHWEST. THIS SETUP ALLOWS FOR
CONTINUED SLOW VEERING TO THE SOUTH FROM THIS EVENING TO TOMORROW
AFTERNOON. IT ALSO MEANS THAT EAST TRAJECTORIES STILL HAVE A CHANCE
AT PUSHING FOG BACK TOWARD FWA TONIGHT. FOG EXTENDED MUCH
FARTHER WEST THAN MODELS PROJECTED LAST NIGHT, BUT THE PLACEMENT
OF THE FOG IS MUCH FARTHER EAST THAN WHERE IT WAS LAST NIGHT.
WE'LL ALSO HAVE SOME HIGH CLOUDS AROUND THE AREA. THIS PLACES
SOME UNCERTAINTY ON IF IT'LL REACH FWA YET AND SO WILL CONTINUE
THE TEMPO 3/4SM GROUP OF THE PREVIOUS TAF ISSUANCE AS WELL AS
THE WIDER 3SM PREVAILING GROUP.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...BROWN
AVIATION...ROLLER
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