403
FXUS63 KIWX 051726
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
126 PM EDT SAT SEP 5 2026
KEY MESSAGES
- SHOWERS AND SOME THUNDERSTORMS CANNOT BE RULED OUT THIS
AFTERNOON INTO THE EVENING BEFORE SUNSET AS A COLD FRONT
PUSHES SOUTH. A STRONG STORM OR TWO COULD BE OBSERVED.
- SECOND HALF OF THE HOLIDAY WEEKEND WILL BE DRY AND SEASONABLY
PLEASANT.
- TEMPERATURES AND HUMIDITY WILL INCREASE SOMEWHAT TUESDAY INTO
WEDNESDAY, BUT NOT TO THE LEVELS OF THIS PAST WEEK.
- CHANCES FOR SHOWERS AND STORMS (20 TO 30%) RETURN MAINLY
WEDNESDAY NIGHT INTO THURSDAY.
DISCUSSION
ISSUED AT 124 PM EDT SAT SEP 5 2026
THE HOLIDAY WEEKEND STARTED OFF ON THE WARM, HUMID AND FOR SOME
STORMY SIDE. HOWEVER, THE PESKY UPPER RIDGE AIDING IN THIS PATTERN
WILL RETROGRADE SOMEWHAT AND ALLOW A BRIEF RETURN TO MORE SEASONABLE
TEMPERATURES (AROUND 80 IN THE AFTERNOON AND 50S AT NIGHT) THROUGH
THE REMAINDER OF THE EXTENDED WEEKEND. THEREAFTER, THE RIDGE TRIES
TO EDGE BACK NE TUESDAY ALLOWING SLIGHTLY WARMER AND MORE HUMID
CONDITIONS TO RETURN (STILL DRY). A TROUGH SCOOTS ACROSS THE
NORTHERN US MID WEEK, FLATTENING OUT THE RIDGE AND ALLOWING A WEAK
BOUNDARY TO LINGER IN THE AREA WITH SOME LOW END CHANCES FOR SHOWERS
AND STORMS MAINLY WED NIGHT INTO THURSDAY.
ADDITIONAL WAVES PASS NORTH OF THE AREA, HELPING TO LIMIT THE RIDGE
FROM BUILDING BACK IN (DANGEROUS HEAT AND HUMIDITY REMAINS SOUTH OF
THE AREA) WITH POSSIBLY SOME CHANCES FOR SHOWERS AND STORMS WITH
EACH WAVE INTO NEXT WEEKEND.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
ISSUED AT 124 PM EDT SAT SEP 5 2026
AS A BACKDOOR FRONT PUSHES INTO THE AREA INTO TONIGHT, HIGH PRESSURE
TAKES OVER FOR SUNDAY PROVIDING DRIER CONDITIONS AND REMOVING RAIN
THREATS. OUT AHEAD OF THE BACKDOOR FRONT, SOME LOW CLOUDINESS HAS
CROPPED UP WITH MVFR/IFR CIGS NOTED ACROSS SOUTHERN LOWER MI. MODELS
ONLY BRING SOME HIGH MVFR CIGS INTO FWA THIS AFTERNOON, BUT GIVEN
FORECAST MOISTURE PROFILES AND CURRENT OBS, THINK SOME LOW MVFR MAY
BE POSSIBLE AT FWA FOR THE FIRST FEW HOURS BEFORE CLOUDINESS BREAKS
UP. IT DOES LOOK LIKE WINDS STAY EXCITED ENOUGH OVERNIGHT TO
PRECLUDE ANY FOG FORMATION, BUT THIS MAY NEED TO BE WATCHED
ESPECIALLY GIVEN HOW WET WE'VE BEEN.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...FISHER
AVIATION...BROWN/ROLLER
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