773  
FXUS63 KIWX 021833  
AFDIWX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
233 PM EDT THU OCT 2 2025  
   
KEY MESSAGES  
 
- WARM AND DRY FOR THE WEEKEND THROUGH EARLY NEXT WEEK. HIGH  
TEMPERATURES WELL ABOVE NORMAL IN THE MID TO UPPER 80S.  
 
- MINIMUM RELATIVE HUMIDITIES AS LOW AS 30% TO 40% OVER THE WEEKEND  
MAY BE CONDUCIVE FOR ELEVATED FIRE DANGER.  
 
- CHANCES FOR RAIN ARRIVE LATE MONDAY NIGHT THROUGH TUESDAY. IN  
TOTAL, 0.50" TO 1" OF RAIN WILL BE POSSIBLE, WHICH WILL NOT BE  
ENOUGH TO OFFSET ONGOING DROUGHT.  
 
- NOTICEABLY COOLER BY MIDWEEK WITH TEMPERATURES CLOSER TO  
SEASONABLE LEVELS. HIGHS IN THE LOW TO MID 60S WITH LOWS IN  
THE UPPER 30S POSSIBLE.  
 
 
   
DISCUSSION  
 
ISSUED AT 232 PM EDT THU OCT 2 2025  
 
HIGH PRESSURE CENTERED OVER THE NORTHEAST WILL ALLOW FOR WARM AND  
DRY WEATHER TO LAST THROUGH EARLY NEXT WEEK. DIURNAL HEATING TODAY  
HAS ALLOWED FOR SOME SCATTERED MID AND HIGH LEVEL CUMULUS TO DEVELOP  
PER VISIBLE SATELLITE IMAGERY. SKIES WILL GRADUALLY CLEAR THIS  
EVENING; CLEAR SKIES OVERNIGHT ALLOW FOR INCREASED RADIATIONAL  
COOLING WITH LOWS IN THE LOW TO MID 50S.  
 
HIGHS IN THE 80S EACH DAY FRIDAY THROUGH MONDAY WILL BE 10 TO 20  
DEGREES ABOVE NORMAL FOR THIS TIME OF YEAR. AS THE AFOREMENTIONED  
HIGH PRESSURE SYSTEM DRIFTS EASTWARD OVER THE WEEKEND, WINDS WILL  
BECOME INCREASINGLY BREEZY AS A DEEPENING SURFACE PRESSURE GRADIENT  
DEVELOPS OVER THE MIDWEST. SOUTHWEST WINDS WILL GUST AS HIGH AS 20  
TO 25 MPH ON SUNDAY AFTERNOON AND EVENING. I WOULDN'T BE  
SURPRISED IF A FEW LOCATIONS REACH THE 90 DEGREE MARK ON SUNDAY  
DUE TO THE INCREASE IN WAA.  
 
MAINLY DRY CONDITIONS HAVE PERSISTED OVER THE PAST FEW WEEKS AND AS  
A RESULT, ONGOING DROUGHT PERSISTS OR WORSENS ACROSS MUCH OF THE  
AREA. THE NEW US DROUGHT MONITOR WAS RELEASED THIS MORNING (OCTOBER  
2ND) AND SHOWS EXPANSION OF EXTREME DROUGHT (D3) ACROSS NORTHWEST  
OHIO AND INTO NORTHEAST INDIANA ALONG THE US 24 CORRIDOR. THIS IS  
THE FIRST TIME ANY PART OF ALLEN COUNTY, IN HAS EXPERIENCED EXTREME  
DROUGHT SINCE AUGUST 2012. PARTS OF NOBLE, DEKALB, AND STEUBEN  
COUNTIES SAW SOME IMPROVEMENT THIS WEEK DUE TO HIGHLY LOCALIZED  
RAINFALL AMOUNTS OF 2-4" IN SOME LOCATIONS. OTHERWISE, DROUGHT  
CONTINUES ACROSS NORTHEAST INDIANA AND NORTHWEST OHIO. WARM AND DRY  
CONDITIONS WILL LIKELY EXACERBATE DROUGHT OVER THE WEEKEND.  
 
ONE ADDITIONAL CONCERN OVER THE NEXT SEVERAL DAYS GIVEN THE ABOVE  
NORMAL TEMPERATURES AND DRY CONDITIONS IS ELEVATED FIRE DANGER.  
SUNNY SKIES AND PERSISTENT WARMTH SHOULD ALLOW FOR MINIMUM AFTERNOON  
RELATIVE HUMIDITY VALUES TO DROP BETWEEN 25 TO 40 PERCENT FRIDAY  
THROUGH MONDAY. SHOULD ANY GRASS OR BRUSH FIRES DEVELOP, ESPECIALLY  
ON SUNDAY WHEN WINDS WILL GUST AS HIGH AS 20 TO 25 MPH, THEY MAY  
SPREAD EASILY DUE TO ABUNDANT DRY CONDITIONS. AVOID OUTDOOR BURNING!  
 
RAIN CHANCES FINALLY MAKE A RETURN TO THE AREA ON TUESDAY. AHEAD OF  
AN INCOMING COLD FRONT, MOISTURE FROM THE GULF/ATLANTIC WILL MOVE  
INTO THE OHIO RIVER VALLEY. THE GFS AND ECMWF STILL HAVE SOME  
DISCREPANCIES ON TIMING AND AMOUNT OF MOISTURE. THE COLD FRONT WILL  
SLOWLY DROP SOUTHEASTWARD ON MONDAY THROUGH THE MIDWEST AND MAY  
STALL OUT IN OUR NORTHWEST OR JUST OUTSIDE OF OUR AREA LATE MONDAY.  
AS THE FRONT SAGS SOUTHEAST ON TUESDAY, SCATTERED SHOWERS WILL BE  
POSSIBLE THROUGH OUT THE DAY. DEPENDING ON HOW FAR NORTH THIS  
GULF/ATLANTIC MOISTURE COULD GET, SHOWERS MAY BE POSSIBLE DURING THE  
DAY TUESDAY ALONG US 24 OUT AHEAD OF THE FRONT. WITH DEWPOINTS IN  
THE UPPER 50S TO LOW 60S COMBINED WITH UP TO 500J/KG SBCAPE, I CAN'T  
COMPLETELY RULE OUT A FEW EMBEDDED THUNDERSTORMS ON TUESDAY.  
DEPENDING ON HOW MUCH MOISTURE IS AVAILABLE AND HOW SLOW THE  
FRONT MOVES THROUGH, RAINFALL AMOUNTS OF 0.5" TO 1" TOTAL WILL  
BE POSSIBLE. HIGHEST AMOUNTS FAVOR THE US 24 CORRIDOR.  
 
ANOTHER AREA OF HIGH PRESSURE BUILDS IN MIDWEEK, BRINGING IN MUCH  
COOLER AIR FROM CENTRAL CANADA DOWN ACROSS THE MIDWEST. IT WILL BE  
NOTICEABLY COOLER ON WEDNESDAY AND THURSDAY, WITH HIGHS ONLY IN  
THE LOW TO MID 60S. LOWS WEDNESDAY NIGHT WILL BE NEAR 40  
DEGREES. PATCHY FROST MAY BE POSSIBLE WEDNESDAY NIGHT IN LOW-  
LYING AND RURAL AREAS THAT DROP INTO THE UPPER 30S.  
 
 
   
AVIATION /18Z TAFS THROUGH 18Z FRIDAY/  
 
ISSUED AT 1216 PM EDT THU OCT 2 2025  
 
RIDGING WILL CONTINUE TO DOMINATE WITH VFR CONDITIONS, LIGHT  
WINDS AND ONLY SOME PASSING CIRRUS AT TIMES.  
 
 
   
IWX WATCHES/WARNINGS/ADVISORIES  
 
IN...NONE.  
OH...NONE.  
MI...NONE.  
MARINE...NONE.  
 
 
 
 
 
DISCUSSION...JOHNSON  
AVIATION...STEINWEDEL  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IN Page
The Nexlab OH Page
The Nexlab MI Page
Main Text Page