446
FXUS63 KIWX 031734
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
134 PM EDT WED JUN 3 2026
KEY MESSAGES
- TRENDING WARMER INTO THURSDAY AND FRIDAY WITH HIGHS INTO THE 80S.
- CHANCES (20-50%) FOR SHOWERS AND STORMS ENTER THE FORECAST NORTH
OF THE US 24 CORRIDOR FRIDAY AFTERNOON INTO FRIDAY EVENING.
- BETTER RAIN AND STORM CHANCES (50-80%) AREA-WIDE ON SATURDAY WITH
HEAVY DOWNPOURS AND LIGHTNING THE PRIMARY THREATS.
- MAINLY DRY SUNDAY INTO MONDAY.
DISCUSSION
ISSUED AT 133 PM EDT WED JUN 3 2026
AN EXPANSIVE LOW LEVEL ANTICYCLONE OVERHEAD WILL SINK OFF TO THE
SOUTHEAST BY THURSDAY AND FRIDAY. THIS WILL ALLOW OUR STRETCH OF
PLEASANT WEATHER TO PERSIST TO END THE WEEK WITH WARMER HIGHS INTO
THE LOW TO MID 80S AS SOUTHWESTERLY FLOW RAMPS UP ON THE BACKSIDE OF
THE AFOREMENTIONED SURFACE HIGH. A MORE DRAMATIC INCREASE IN COLUMN
MOISTURE REMAINS DELAYED UNTIL LATER FRIDAY AND SATURDAY. THIS
INCOMING HIGH THETA-E AIR IN CONJUNCTION WITH SEVERAL MID LEVEL
DISTURBANCES TRAVERSING THE AREA IN FLATTENED QUASI-ZONAL FLOW ALOFT
COULD YIELD PERIODIC SCATTERED SHOWERS AND STORMS, PARTICULARLY ON
SATURDAY WITH HEAVIER DOWNPOURS POSSIBLE. THE BULK OF AVAILABLE
MODEL GUIDANCE SUGGESTS A RETURN TO DRIER WX SUNDAY INTO EARLY NEXT
WEEK AS THE FRONTAL BOUNDARY AND ASSOCIATED MOISTURE AXIS LIKELY
GETS SHUNTED JUST TO THE SOUTH AND WEST OF THE IWX CWA.
AVIATION /18Z TAFS THROUGH 18Z THURSDAY/
ISSUED AT 1253 PM EDT WED JUN 3 2026
HIGH PRESSURE REMAINS IN PLACE THROUGH THE TAF PERIOD PROMOTING
TRANQUIL WEATHER CONDITIONS. FEW TO SCT CLOUDS ARE STREAMING IN
FROM THE WEST BUT ARE EXPECTED TO CLEAR AFTER SUNSET. VRB WIND
AGAIN TONIGHT WITH A LOSS OF DAYTIME MIXING FOLLOWED BY SOUTH-
SOUTHWEST WIND DEVELOPING MIDDAY THURSDAY.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...STEINWEDEL
AVIATION...BROWN
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