992
AWUS01 KWNH 262318
FFGMPD
OHZ000-KYZ000-INZ000-270417-
MESOSCALE PRECIPITATION DISCUSSION 0534
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
717 PM EDT FRI JUN 26 2026
AREAS AFFECTED...PORTIONS OF FAR SOUTHERN INDIANA AND NORTHERN
KENTUCKY
CONCERNING...HEAVY RAINFALL...FLASH FLOODING LIKELY
VALID 262317Z - 270417Z
SUMMARY...FLASH FLOODING REMAINS POSSIBLE NEAR AND DOWNSTREAM OF
AN EVOLVING CONVECTIVE COMPLEX OVER SOUTH-CENTRAL INDIANA AND
NORTH-CENTRAL KENTUCKY.
DISCUSSION...AREAS OF FLASH FLOODING REMAIN POSSIBLE IN/NEAR A
CLUSTER EXTENDING FROM PRINCETON/HUNTINGBURG, IN THROUGH OWENSBORO
TO NEAR BEAVER DAM, KY. WITHIN THIS BAND, A MIX OF
FORWARD-PROPAGATING STORMS AND MERGERS (ESPECIALLY IN SOUTHERN
INDIANA) WERE PROMOTING AREAS OF 1-2 INCH/HR RAIN RATES. SOME OF
THE HEAVIER RAINFALL WAS OCCURRING OVER AREAS THAT RECEIVED
EXCESSIVE RAINFALL YESTERDAY, AND LOCAL FFG (NEAR ZERO IN SPOTS)
WAS BEING READILY EXCEEDED. FLASH FLOODING HAS BEEN REPORTED IN
SOUTHERN INDIANA WITH THIS ACTIVITY.
THE OVERALL RISK OF FLASH FLOODING SHOULD CONTINUE FOR AT LEAST
ANOTHER 2-4 HOURS AS STORMS MIGRATE THROUGH NORTHERN KENTUCKY AND
ADJACENT AREAS OF SOUTHEASTERN INDIANA. EVENTUALLY, LOSS OF
DAYTIME HEATING SHOULD LIMIT MERGER POTENTIAL AS STORMS FURTHER
CONGEAL INTO A LARGER FORWARD-PROPAGATING CLUSTER. DOWNSTREAM AIR
OVER EASTERN KENTUCKY HAS BEEN COOLED FROM PRIOR RAINFALL, WHICH
MAY ALSO MITIGATE THE FLASH FLOOD POTENTIAL VIA WEAKENING UPDRAFTS
AND ATTENDANT RAIN RATES. THESE PROCESSES SHOULD TAKE A FEW HOURS
TO UNFOLD THOUGH, WITH CONTINUED FLASH FLOOD POTENTIAL EXPECTED
(INCLUDING NEAR LOUISVILLE AND LEXINGTON) THROUGH AT LEAST 03Z/11P
EASTERN.
COOK
..PLEASE SEE WWW.WPC.NCEP.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...ILN...IND...JKL...LMK...PAH...
ATTN...RFC...TIR...NWC...
LAT...LON 39178549 38818397 38148326 37288349 36948502
37248734 38908736
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