580
FXUS63 KIWX 090647
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
247 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 234 AM EDT SAT AUG 9 2025
VERY FEW CHANGES TO THE FORECAST PACKAGE THIS MORNING. STILL
EXPECTING HOT AND HUMID CONDITIONS THIS WEEKEND WITH RIDGING
PUSHING INTO THE AREA BRINGING HIGH TEMPERATURES EACH DAY RIGHT
AROUND 90 DEGREES COUPLED WITH SURFACE DEW POINTS GENERALLY IN
THE LOW TO MID 70S. THIS WILL BRING HEAT INDICES OR FEELS LIKE
TEMPERATURES IN THE LOW TO MID 90S EACH DAY THROUGH MONDAY.
THE TROUGHING OVER THE NORTHERN PLAINS STATES WILL SLOWLY PUSH
EASTWARD INTO OUR FAR WESTERN PORTIONS OF THE CWA BY SUNDAY
AFTERNOON INCREASING CHANCES FOR SHOWERS/THUNDERSTORMS AND WILL
WORK ITS WAY EAST THROUGH THE REMAINDER OF THE FORECAST AREA ON
MONDAY. THIS IS IN THE WAKE OF THE RIDGING THAT WILL PUSH SOUTH
AND EAST OUT OF THE AREA. STILL UNCERTAINTY IN THE EXACT STORM
COVERAGE AND INTENSITY AS THERE WILL BE A MORE SCATTERED NATURE
TO THE SHOWERS/STORMS WITH INSTABILITY AS THE MAIN DRIVER.
NEXT WEEK THERE WILL BE CHANCES FOR SHOWERS AND STORMS MAINLY
DIURNALLY AND INSTABILITY DRIVEN WITH A MORE ZONAL FLOW ALOFT
AND SLIGHTLY COOLER TEMPERATURES THROUGH MOST OF THE WORK WEEK.
STILL INDICATIONS THAT NEXT WEEKEND WE WILL SEE ANOTHER SHOT OF
HOT AND HUMID AIRMASS AS A MORE BROAD RIDGING PATTERN EMERGES
OVER THE REGION.
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...ANDERSEN
AVIATION...JOHNSON
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