878
FXUS61 KILN 290609
AFDILN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
209 AM EDT WED APR 29 2026
WHAT HAS CHANGED
NO SIGNIFICANT CHANGES.
KEY MESSAGES
1) A LOW PRESSURE SYSTEM IS MOVING THROUGH THE OHIO VALLEY TODAY,
BRINGING PERIODS OF LIGHT RAINFALL.
2) EXTENDED PERIOD OF COOLER CONDITIONS SETTLES IN OVER THE REGION
THROUGH THE REST OF THE WEEK, CONTINUING INTO THE WEEKEND.
DISCUSSION
KEY MESSAGE 1)
AS THE SURFACE LOW PRESSURE MOVES THROUGH TODAY, OFF AND ON PERIODS
OF RAINFALL WILL OCCUR. LIMITED INSTABILITY INHIBITS THE POTENTIAL
FOR WIDESPREAD THUNDERSTORMS, BUT A FEW RUMBLES OF THUNDER CANNOT BE
RULED OUT. CLOUD COVER AND RAINFALL KEEPS TEMPERATURES GENERALLY IN
THE UPPER 50S TO MID 60S. LATE IN THE AFTERNOON, THE LOW PRESSURE
BEGINS TO PULL AWAY TO THE EAST SUPPORTING STRENGTHENING
NORTHWESTERLY WINDS. THESE WINDS WILL CONTINUE INTO THE EVENING
HOURS, AND A FEW SCATTERED SHOWERS ARE EXPECTED WITHIN THE NORTHWEST
FLOW.
KEY MESSAGE 2)
NO MAJOR CHANGES IN THE OVERALL EXPECTATIONS FOR THE UPCOMING STRETCH
OF COOLER DAYS LATER THIS WEEK AND THROUGH THE WEEKEND. A DEEP
LONGWAVE TROUGH SETTLES IN OVER THE MIDWEST AND GREAT LAKES BY
THURSDAY, BEGINNING AN EXTENDED PERIOD OF BELOW NORMAL TEMPERATURES.
THE COOLEST TEMPERATURES ARE FORECAST ON FRIDAY AND SATURDAY, WITH
HIGH TEMPERATURES BETWEEN 55 AND 60, WHICH IS ABOUT 10 TO 15 DEGREES
BELOW NORMAL. THE POTENTIAL FOR FROST LOOKS POSSIBLE FRIDAY NIGHT
AND SATURDAY NIGHT. SATURDAY NIGHT APPEARS TO BE THE BETTER
OPPORTUNITY BETWEEN THE TWO DUE TO THE DRIER AIR MASS AND CLOSER
PROXIMITY TO THE SURFACE HIGH PRESSURE.
DRIER CONDITIONS WILL ACCOMPANY THE COOLER AIR WEATHER, BUT THERE
WILL BE A FEW OPPORTUNITIES FOR LIGHT RAINFALL. LINGERING SHOWERS ARE
EXPECTED ON THURSDAY, WITH A SECONDARY COLD FRONT PROVIDING
ADDITIONAL SHOWERS ON FRIDAY. FOLLOWING THE SURFACE HIGH PRESSURE
THIS WEEKEND, THE NEXT CHANCE FOR RAIN IS ON MONDAY.
AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
THUNDERSTORM ACTIVITY IS WIDELY SCATTERED TO START THE TAF. AMDS WILL
BE MADE AS NECESSARY BASED ON THE FEW THUNDERSTORMS THAT ARE
OCCURRING. OTHERWISE, THUNDERSTORM POTENTIAL IS LIMITED THROUGH THE
UPCOMING PERIODS OF LIGHT RAIN FORECAST THROUGH WEDNESDAY AFTERNOON.
WINDS WILL BE LIGHT AND VARIABLE AS THE LOW PRESSURE MOVES THROUGH,
BEFORE BECOMING MORE CONSISTENTLY OUT OF THE NORTHWEST AS THE LOW
PRESSURE PULLS AWAY TO THE EAST. GUSTS OVER 20 KNOTS BECOME MORE
FREQUENT THIS AFTERNOON AND EARLY EVENING.
CIGS ARE STILL FORECAST TO DROP TO MVFR/IFR THRESHOLDS INTO 12Z THIS
MORNING. IMPROVEMENTS TO MVFR/VFR CONDITIONS OCCUR INTO THE AFTERNOON,
BUT MAY BE SLOWER TO IMPROVE FOR CMH/LCK.
OUTLOOK...SIGNIFICANT WEATHER IS NOT EXPECTED.
ILN WATCHES/WARNINGS/ADVISORIES
OH...NONE.
KY...NONE.
IN...NONE.
DISCUSSION...MCGINNIS
AVIATION...MCGINNIS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page