648
FXUS61 KILN 191249
AFDILN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
849 AM EDT SUN APR 19 2026
WHAT HAS CHANGED
EXPIRED THE FROST ADVISORY FOR THIS MORNING.
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 /12Z SUNDAY THROUGH THURSDAY/
WE WILL SEE A PERIOD OF CLEAR SKIES THIS MORNING. A WEAK EMBEDDED
MID LEVEL SHORT WAVE WILL MOVE ACROSS THE SOUTHERN GREAT LAKES LATER
TODAY. THIS WILL LEAD TO AN INCREASE IN MID LEVEL CLOUDS HEADING
INTO THE AFTERNOON HOURS AND IT WILL BE TOUGH TO RULE OUT A FEW
SPRINKLES OR LIGHT RAIN SHOWERS, MAINLY ALONG AND TO THE NORTH OF THE
I-70 CORRIDOR. WEST WINDS WILL ALSO INCREASE LATER THIS MORNING AND
GUST TO AROUND 25 KNOTS OR SO THROUGH THE AFTERNOON. SKIES WILL
CLEAR OVERNIGHT ALONG WITH A DECREASING WIND TREND.
OUTLOOK....MVFR CONDITIONS ARE POSSIBLE ON WEDNESDAY.
ILN WATCHES/WARNINGS/ADVISORIES
OH...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...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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