556
FXUS61 KILN 181914
AFDILN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
314 PM EDT SAT APR 18 2026
WHAT HAS CHANGED
FREEZING TEMPERATURES POSSIBLE SUNDAY NIGHT. COOLER TEMPERATURES
TONIGHT THROUGH TUESDAY MORNING, WITH A REBOUND EXPECTED FOR THE
REMAINDER OF NEXT WEEK.
KEY MESSAGES
1) AS HIGH PRESSURE AND LIGHT WINDS SETTLE OVER THE REGION SUNDAY
NIGHT, TEMPERATURES WILL DROP BELOW FREEZING IN THE NORTHERN CWA.
2) BEHIND THE FRONT, A MUCH COOLER AIRMASS WILL MOVE INTO THE REGION
THROUGH TUESDAY MORNING. WARMER TEMPERATURES WILL RETURN MID WEEK.
DISCUSSION
KEY MESSAGE 1)
BEHIND THE FRONT, GOOD CAA WILL DEVELOP TONIGHT WITH A MUCH COOLER
AIRMASS SETTLING INTO THE REGION FOR SUNDAY AND MONDAY. A FREEZE
WATCH HAS BEEN ISSUED FOR THIS TIME IN THE NORTHERN 1/3 OF FORECAST
AREA.
KEY MESSAGE 2)
HIGH TEMPERATURES FOR BOTH SUNDAY AND MONDAY WILL GENERALLY BE IN
THE 50S, SOME UPPER 40S NORTH OF A DELAWARE-BELLEFONTAINE LINE.
SUNDAY NIGHT WILL BE THE COOLEST NIGHT WITH OVERNIGHT LOWS IN THE LOW
TO MID 30S. THIS WILL LEAD TO THE POTENTIAL FOR SOME FROST FOR THE
NORTHERN HALF OF THE CWA AND FREEZING TEMPS IN THE WATCH AREA.
MONDAY NIGHT HAS A CHANCE FOR FROST ACROSS THE CWA, BUT THE THREAT
FOR FREEZING TEMPERATURES WILL LIE IN CENTRAL OHIO EAST OF A
MARYSVILLE-WASHINGTON COURT HOUSE-PORTSMOUTH LINE.
MID LEVEL RIDGING WILL BUILD INTO THE OHIO VALLEY THROUGH MID WEEK,
LEADING TO A WARMING TREND TUESDAY ONWARD.
AVIATION /18Z SATURDAY THROUGH THURSDAY/
SCATTERED SHOWERS AND AREAS OF RAIN WILL AFFECT THE TERMINALS IN THE
CWA THROUGH 00Z, ENDING WITH A COLD FRONTAL PASSAGE. THIS FRONT AND
ASSOCIATED PRECIP AHEAD OF IT WILL REACH DAYTON AT 20Z, CINCY AT
21Z, AND WILMINGTON AT 22Z. EXPECT A WIND SHIFT TO WNW AND AN
INCREASE IN WIND SPEED 12-15KT G25-30KT. SOME MVFR CIGS WILL OCCUR
BEHIND IT, BUT THE CONFIDENCE OF IT RESTS NORTH OF CVG/LUK. IF IT
DROPS DOWN TO 1KFT OR LOWER, IT WILL BE LESS THAN AN HOUR BUT IS
POSSIBLE ANYWHERE FOR ABOUT AN HOUR BEHIND FROPA.
CIGS LIFT OVERNIGHT AND CLEAR OUT TOMORROW. WIND RELAXES LATE IN THE
EVENING TO UNDER 10KT, BUT KEEPS UP 10-12KT AT DAY AND ILN. BEFORE
DAYBREAK, WINDS WILL BEGIN TO PICK UP, BUT THE FM GROUP WAS PUT AT
15Z WHERE STRONGER GUSTS WOULD BE MORE LIKELY IN SUSTAINED 14-17KT
WINDS. AFTER 18Z, YOU COULD PROBABLY TACK ANOTHER 3-4KT ON TO THESE
VALUES.
MID CLOUDS WILL OCCUR WITH A BACK-DOOR COLD FRONT LATE TOMORROW.
WINDS SHOULD SHIFT MORE NW AND RELAX TO UNDER 12KT TOWARDS NIGHTFALL.
OUTLOOK....MVFR CEILINGS AND VISIBILITIES POSSIBLE ON WEDNESDAY.
ILN WATCHES/WARNINGS/ADVISORIES
OH...FREEZE WATCH FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING FOR
OHZ026-034-035-042>046-051>054-056-060-065.
KY...NONE.
IN...FREEZE WATCH FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING FOR
INZ050.
DISCUSSION...FRANKS
AVIATION...FRANKS
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