243
FXUS61 KILN 312344
AFDILN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
744 PM EDT THU JUL 31 2025
SYNOPSIS
DRIER, COOLER AIR WILL MOVE INTO THE MIDDLE OHIO VALLEY TONIGHT AS
SURFACE HIGH PRESSURE BUILDS INTO THE UPPER MIDWEST. THIS HIGH WILL
CONTINUE TO PROVIDE FAIR WEATHER INTO THE WEEKEND. INCREASING
MOISTURE WILL BRING A CHANCE OF SHOWERS EARLY NEXT WEEK.
NEAR TERM /THROUGH FRIDAY/
SHOWERS WILL CONTINUE TO DECREASE THIS EVENING AS A WAVE OF LOW
PRESSURE AND THE ACCOMPANYING FRONTAL BOUNDARY MOVE AWAY FROM OUR
AREA. EXPANSIVE SURFACE HIGH PRESSURE WILL BEGIN TO BUILD INTO THE
OHIO VALLEY TONIGHT. AS DRY AIR ADVECTION CONTINUES, REMNANT LOW
CLOUDS WILL SLOWLY BE SCOURED AWAY LATE, LEAVING MOSTLY CLEAR SKIES
FOR ALL EXCEPT SOUTH-CENTRAL OHIO AND NORTHEAST KENTUCKY. LOWS WILL
DROP INTO THE UPPER 50S TO LOW 60S.
SHORT TERM /FRIDAY NIGHT/
HIGH PRESSURE WILL OFFER MOSTLY CLEAR SKIES AND A STEADY
NORTHEASTERLY FLOW THROUGH THE PERIOD. TEMPERATURES WILL BE BELOW
NORMAL. CAN'T RULE OUT A SHORT PERIOD OF RIVER VALLEY FOG DEVELOPING
LATE FRIDAY NIGHT DUE TO THE LOCAL MOISTURE SOURCE.
LONG TERM /SATURDAY THROUGH THURSDAY/
SATURDAY BEGINS WITH NE SURFACE FLOW CENTERED UNDER HIGH PRESSURE
WITH NW FLOW ALOFT BRINGING IN CAA THROUGH MUCH OF THE WEEKEND.
BELOW NORMAL TEMPERATURES WITH MID 70S/LOW 80S FOR HIGHS AND UPPER
50S/LOWER 60S FOR LOWS. THE HIGH SHIFTS EASTWARD BY SUNDAY, ALLOWING
RETURN FLOW AND A SLIGHT CHANCE OF CONVECTIVE ACTIVITY MOSTLY IN THE
TRI STATE ON SUNDAY AFTERNOON.
AS THE HIGH CONTINUES TO PUSH EAST AND A MORE ZONAL PATTERN TAKES
OVER, A MID LEVEL TROUGH AND ASSOCIATED SHORTWAVE OVER THE CENTRAL
PLAINS WILL APPROACH THE REGION, THOUGH TIMING AND SHARPNESS OF THE
TROUGH REMAINS UNCERTAIN. WITH INCREASING INSTABILITY AND THE RETURN
OF MORE PERSISTENT SW FLOW, AT LEAST A CHANCE FOR ESPECIALLY
DIURNALLY DRIVEN SHOWERS AND SCATTERED THUNDERSTORMS INCREASING A
BIT EACH DAY FROM MON-WED, THOUGH GENERALLY TEMPERATURES REMAIN NEAR
TO BELOW NORMAL, BUT INCREASING TO NEAR NORMAL FOR ESPECIALLY
WED/THU.
AVIATION /00Z FRIDAY THROUGH TUESDAY/
SHOWERS HAVE PUSHED SOUTHEAST OF THE TERMINALS. A DECK OF MAINLY MVFR
STRATUS CLOUDS WILL LINGER INTO THE EARLY PART OF THE NIGHT,
GRADUALLY ERODING FROM THE NORTH. VFR CONDITIONS ARE THEN EXPECTED
THE REST OF THE TAF PERIOD. ONLY EXCEPTION IS AT KLUK, WHERE MVFR
VSBYS ARE POSSIBLE IF WINDS CAN WEAKEN ENOUGH IN THE RIVER VALLEYS.
ELSEWHERE, SUSTAINED NORTHEASTERLY WINDS REMAIN AROUND 10 KTS,
LIMITING BR DEVELOPMENT.
SOME GUSTS OF 20-25 KTS ARE POSSIBLE DURING THE DAYTIME ON FRIDAY,
WITH SUSTAINED WINDS REMAINING AROUND 10-15 KTS.
OUTLOOK...NO SIGNIFICANT WEATHER EXPECTED.
ILN WATCHES/WARNINGS/ADVISORIES
OH...NONE.
KY...NONE.
IN...NONE.
SYNOPSIS...
NEAR TERM...
SHORT TERM...
LONG TERM...JDR
AVIATION...CLARK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page