526
FXUS63 KIWX 122238
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
638 PM EDT WED AUG 12 2026
KEY MESSAGES
- SHOWERS/THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH THE AREA
THIS AFTERNOON BUT WILL SEE CHANCES FOR PRECIPITATION
DIMINISH INTO THE EVENING.
- A FLOOD WATCH REMAINS IN EFFECT FOR AREAS ALONG AND SOUTH OF
US-30 THROUGH 11 PM EDT.
- PATCHY FOG WILL BE POSSIBLE OVERNIGHT TONIGHT INTO THURSDAY
MORNING.
- PERIODS OF SHOWERS/THUNDERSTORMS WILL BE POSSIBLE OVER THE
NEXT SEVERAL DAYS, ESPECIALLY DURING THE AFTERNOON HOURS.
DISCUSSION
ISSUED AT 120 PM EDT WED AUG 12 2026
WELL ANOTHER DAY OF SHOWERS/THUNDERSTORMS TODAY WITH THANKFULLY
LESS SEVERITY WITH LESS IMPRESSIVE ENVIRONMENTAL CONDITIONS
AVAILABLE TO WORK WITH. HOWEVER, THE FLOODING IMPACTS SEEM TO BE
THE MAIN CONCERN GOING INTO THIS AFTERNOON/EVENING PERIOD WITH
ANOTHER STRATIFORM RAIN EVENT IN THE WAKE OF THIS AFTERNOONS
EASTWARD PROGRESSION OF A LINEAR STORM FEATURE. A SWATH OF STORM
TOTALS OVER THE LAST SEVERAL DAYS OF 5 TO 10 INCHES OF RAINFALL
ACROSS OUR WESTERN PARTS OF THE CWA AROUND PULASKI COUNTY IN
INDIANA AND ORIENTATED SOUTHEASTWARD DOWN INTO THE GRANT,
BLACKFORD, AND JAY COUNTIES IN INDIANA. A FLASH FLOOD WATCH
CONTINUES FOR AREAS MAINLY SOUTH OF US-30 UNTIL 11 PM EDT
TONIGHT AS ADDITIONAL RAINFALL WILL EXACERBATE ANY FLOODING
IMPACTS IN THESE AREAS.
THE GOOD NEWS IS WE SHOULD SEE A BREAK IN THE PRECIPITATION
TONIGHT AND THROUGH THURSDAY MORNING WHICH WILL HELP TO LET
THINGS DRY OUT A BIT. HOWEVER, THIS BREAK WILL ALSO INCREASE
CHANCES OF MISTY AND FOGGY CONDITIONS OVERNIGHT WITH THE VERY
MOIST SURFACE LAYER FROM THE RECENT RAINFALL ALONG WITH LIGHT
AND VARIABLE WINDS ACROSS THE AREA. CONFIDENCE ON THE AREAL
COVERAGE IS NOT HIGH AT THIS TIME BUT WHERE FOG DOES DEVELOP
COULD BECOME DENSE AT LEAST FOR A SHORT PERIOD.
WITH THE PESKY ZONAL UPPER LEVEL PATTERN STILL STATUS QUO
THOROUGH AT LEAST THE NEXT SEVERAL DAYS WE WILL HAVE PERIODS OF
INCREASED CHANCES OF SHOWERS AND STORMS EACH DAY ESPECIALLY IN
THE AFTERNOON TO EVENING PERIODS. TEMPERATURES ALSO LOOKS TO
REMAIN SEASONABLE DURING THIS FORECAST PERIOD.
AVIATION /00Z TAFS THROUGH 00Z FRIDAY/
ISSUED AT 634 PM EDT WED AUG 12 2026
CONDITIONS WILL REMAIN DRY THROUGH AT LEAST THE FIRST HALF OF
THE TAF PERIOD. WITH THE GROUND SATURATED FROM RECENT RAINFALL,
LIGHT WINDS EXPECTED OVERNIGHT, AND SATELLITE IMAGERY SHOWING
CLEARING APPROACHING FROM UPSTREAM, DENSE FOG IS EXPECTED TO
DEVELOP OVERNIGHT. FOG MAY DEVELOP AS EARLY AS 06Z AND LAST
THROUGH DAYBREAK. LIFR CEILINGS AND VISIBILITIES ARE LIKELY WITH
DENSE FOG BETWEEN 06-12Z THURSDAY. WHILE VISIBILITIES IMPROVE
QUICKLY AFTER DAYBREAK (AROUND 12Z), CEILINGS MAY REMAIN IFR
THROUGH THE MORNING HOURS. ANOTHER ROUND OF HEAVY RAIN AND
SCATTERED STORMS IS POSSIBLE THURSDAY AFTERNOON EVENING,
STARTING BETWEEN 18-21Z. WITHIN ANY STORMS, MVFR CEILINGS AND
VISIBILITIES WILL BE POSSIBLE.
IWX WATCHES/WARNINGS/ADVISORIES
IN...FLOOD WATCH UNTIL 11 PM EDT /10 PM CDT/ THIS EVENING FOR
INZ012>015-017-018-020-022>027-032>034-116-203-216.
OH...FLOOD WATCH UNTIL 11 PM EDT THIS EVENING FOR OHZ024-025.
MI...NONE.
MARINE...NONE.
DISCUSSION...ANDERSEN
AVIATION...JOHNSON
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