496
FXUS63 KIWX 090504
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
104 AM EDT SAT AUG 9 2025
KEY MESSAGES
- HOT AND HUMID THROUGH MONDAY WITH HIGHS IN THE UPPER 80S TO
NEAR 90 AND HEAT INDICES IN THE LOW TO MID 90S.
- CHANCES FOR SHOWERS AND STORMS RETURNS NEXT WEEK, WITH LOW
CONFIDENCE ON EXACT TIMING AND LOCATIONS TO BE IMPACTED.
DISCUSSION
ISSUED AT 139 PM EDT FRI AUG 8 2025
TORRID UPPER RIDGE WILL AMPLIFY A BIT FURTHER NEAR TERM BEFORE
FLATTENING ACROSS THE GREAT LAKES SOMEWHAT LATE WEEKEND. THIS
IN TURN SHOULD ALLOW FOR COMPOSITE OUTFLOW/COLD FRONTAL ZONE TO
SINK SEWD INTO AT LEAST NORTHWEST PORTIONS OF THE AREA LATER SUNDAY
NIGHT, PROVIDING CHANCES FOR TSTORMS THAT WILL THEN EXTEND
THROUGH MID WEEK TIMED WITH ACTIVE STORM TRACK THROUGH SRN
CANADA. HOTTEST TEMPS EXPECTED SAT - MON BENEATH HEART OF UPPER
RIDGE YET TEMPS EXPECTED TO CONTINUE WELL ABOVE NORMAL THROUGH
THE WEEK WITH REAMPLIFICATION OF UPPER RIDGE LIKELY AGAIN BY
NEXT WEEKEND. IN BETWEEN, PROXIMITY OF STALLED FRONTAL ZONE
IMPLIED ACROSS PARTS OF THE AREA SUPPORTS CHANCE POPS TIED TO
THE DIURNAL CURVE, MAINLY AFTERNOON AND EVENING.
AVIATION /06Z TAFS THROUGH 06Z SUNDAY/
ISSUED AT 101 AM EDT SAT AUG 9 2025
HIGH PRESSURE CENTERED OVER THE EAST COAST IS KEEPING THINGS
QUIET AND DRY LOCALLY. VFR CEILINGS WILL PERSIST THROUGH THE TAF
FORECAST PERIOD. PATCHY FOG IS ONCE AGAIN POSSIBLE, ALTHOUGH
WITH VFR VISIBILITIES EXPECTED TO PERSIST, HAVE LEFT BCFG OUT OF
THE TAFS FOR NOW (UNLESS AN UPDATE IS NEEDED). SOUTHERLY WINDS
GRADUALLY INCREASE LATER THIS MORNING AFTER 15Z WITH GUSTS AS
HIGH AS 15-20 KNOTS BY THE AFTERNOON.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...T
AVIATION...JOHNSON
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