599
FXUS61 KILN 190535
AFDILN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
135 AM EDT SUN APR 19 2026
WHAT HAS CHANGED
ISSUED FREEZE WARNING FOR TONIGHT IN THE NORTH AND A FROST ADVISORY
IN THE SOUTH.
KEY MESSAGES
1) A SEASONABLY COOL AIRMASS WILL BE IN PLACE ACROSS THE REGION
THROUGH MONDAY BEFORE WARMER TEMPERATURES RETURN BY MID WEEK.
DISCUSSION
KEY MESSAGE 1)
AN UPPER LEVEL TROUGH WILL SHIFT EAST ACROSS THE GREAT LAKES AND
OHIO VALLEY THROUGH MONDAY. WITH A COLD AIRMASS SETTLING IN ACROSS
THE REGION TODAY, HIGHS THIS AFTERNOON WILL ONLY RANGE FROM THE MID
50S NORTH TO AROUND 60 DEGREES IN THE SOUTH. LOWS TONIGHT WILL RANGE
FROM NEAR 30 DEGREES IN THE NORTH TO THE MID 30S SOUTH. WILL
THEREFORE ISSUE A FREEZE WARNING FOR ABOUT THE NORTHERN HALF OF OUR
AREA AND A FROST ADVISORY FOR THE SOUTH. TEMPERATURES WILL REMAIN
SEASONABLY COLD ON TUESDAY WITH AFTERNOON HIGHS MAINLY IN THE 50S.
MID LEVEL RIDGING WILL BUILD INTO THE REGION THROUGH MID WEEK,
RESULTING IN A WARMING TREND. HIGHS BY TUESDAY AND WEDNESDAY WILL BE
BACK INTO THE 70S.
AVIATION /06Z SUNDAY THROUGH THURSDAY/
SPOTTY LIGHT RAIN SHOWERS WILL CONTINUE TO FALL OUT OF MAINLY A MID
LEVEL DECK OVER THE NEXT COUPLE OF HOURS. A CLEARING TREND WILL
DEVELOP WEST TO EAST AS THE MID LEVEL TROUGH AXIS SHIFTS EAST. SOME
MID LEVEL CLOUDS WILL LIKELY REDEVELOP THROUGH THE DAY, BUT VFR
CONDITIONS ARE EXPECTED THROUGH THE TAF PERIOD. WITH SOME DAYTIME
MIXING, WEST WINDS WILL GUST TO AROUND 25 KNOTS OR SO DURING THE DAY
TIME HOURS.
OUTLOOK....MVFR CONDITIONS ARE POSSIBLE ON WEDNESDAY.
ILN WATCHES/WARNINGS/ADVISORIES
OH...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR OHZ034-035-042-043-
051-060-061-070.
FREEZE WARNING FROM 2 AM TO 10 AM EDT MONDAY FOR OHZ026-034-035-
042>046-051>056-060>065-070>074.
FROST ADVISORY FROM 2 AM TO 10 AM EDT MONDAY FOR OHZ077>082-088.
KY...FROST ADVISORY FROM 2 AM TO 10 AM EDT MONDAY FOR KYZ089>100.
IN...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR INZ050-058-059-066-
073-074.
FREEZE WARNING FROM 2 AM TO 10 AM EDT MONDAY FOR INZ050-058-059-066.
FROST ADVISORY FROM 2 AM TO 10 AM EDT MONDAY FOR INZ073>075-080.
DISCUSSION...JGL
AVIATION...JGL
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