825
FXUS63 KIWX 061015
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
615 AM EDT SUN SEP 6 2026
KEY MESSAGES
- REMAINDER OF THE HOLIDAY WEEKEND WILL BE DRY AND PLEASANT.
- TEMPERATURES AND HUMIDITY WILL INCREASE SOMEWHAT TUESDAY INTO
WEDNESDAY, BUT NOT AS HOT AS LAST WEEK
- 20% TO 40% CHANCE OF SHOWERS AND STORMS WEDNESDAY INTO
THURSDAY.
DISCUSSION
ISSUED AT 305 AM EDT SUN SEP 6 2026
CANADIAN HIGH PRESSURE HAS TEMPORARILY DISPLACED A TOWERING
500-MB RIDGE TO OUR WEST FOR THE REMAINDER OF THE LABOR DAY
WEEKEND. OUR COOLEST DAY OF THE WEEK APPEARS TO BE TODAY WITH
HIGH TEMPERATURES GENERALLY IN THE UPPER-70S; PERHAPS 80 DEGREES
TOWARD LAFAYETTE. HIGH PRESSURE PROMOTES DRY CONDITIONS THROUGH
AT LEAST WEDNESDAY MORNING BUT WE WILL SEE A SUBTLE WARMING
TREND BEYOND TODAY AS RETURN SOUTHERLY FLOW, AND THE RESUMPTION
OF UPPER-LEVEL RIDGING, EVENTUALLY NUDGES TEMPERATURES BACK
TOWARD 90 DEGREES. WEDNESDAY, THOSE SOUTH OF THE US 24 CORRIDOR
HAVE A 25-30% CHANCE OF SEEING A 90-DEGREE TEMPERATURE PER
GLOBAL ENSEMBLES.
TO OUR NORTH MIDWEEK, LOW PRESSURE IS WRAPPING UP OVER WESTERN
ONTARIO WITH AN OCCLUDED/COLD FRONT DROPPING SOUTH INTO THE MIDWEST.
MOISTURE RETURN INTO THIS FRONT IS LACKLUSTER AND THE FRONT STALLS
ATOP THE NOW-DEPRESSED UPPER-LEVEL RIDGE. THIS RESULTS IN
FAIRLY MODEST RAIN CHANCES AT 20-40% WEDNESDAY THROUGH THURSDAY
MORNING. BEYOND THIS, THERE IS GROWING CONCENSUS THAT A ZONAL
BUT PROGRESSIVE UPPER-AIR PATTERN TAKES SHAPE PRESENTING PASSING
CHANCES FOR RAIN AND STORMS WHILE PUSHING TEMPERATURES NEAR TO
SLIGHTLY ABOVE NORMAL (NORMALS OF 77/54 BY LATE NEXT WEEK).
AVIATION /12Z TAFS THROUGH 12Z MONDAY/
ISSUED AT 615 AM EDT SUN SEP 6 2026
LIGHT NORTHEAST WIND TODAY WITH FAIR WEATHER CUMULUS THIS
AFTERNOON BENEATH HIGH PRESSURE. FOR NOW, WIND NEAR 5KTS MAY BE
ENOUGH TO FEND OFF ANY RADIATION FOG EARLY MONDAY MORNING.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...BROWN
AVIATION...BROWN
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