979
FXUS61 KILN 210549
AFDILN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
149 AM EDT WED OCT 21 2026
WHAT HAS CHANGED
DENSE FOG ADVISORY IN EFFECT FOR PORTIONS OF WEST-CENTRAL OHIO.
KEY MESSAGES
1) FOG IS OCCURRING ACROSS PORTIONS OF THE REGION THIS MORNING.
2) HIGH PRESSURE WILL PERSIST OVER THE REGION THROUGH THE WEEK AND
INTO THE WEEKEND, BRINGING DRY AND SEASONABLE CONDITIONS.
DISCUSSION
KEY MESSAGE 1)
INCREASED MOISTURE FROM LAKE ERIE IS RESULTING IN FOG, SOME OF WHICH
IS DENSE, ACROSS PORTIONS OF NORTHERN/NORTHWEST OHIO. THE LIGHT
NORTHEAST FLOW IS PUSHING THE FOG INTO HARDIN COUNTY OHIO, AND IT
WILL CONTINUE TO EXPAND OVER THE NEXT FEW HOURS INTO DAYBREAK. GIVEN
THE EXPECTED EXPANSION, A DENSE FOG ADVISORY HAS BEEN ISSUED FOR
AREAS THAT WILL ALSO SEE DENSE FOG DEVELOP. ADDITIONAL COUNTIES WILL
BE ADDED AS NEEDED.
OTHERWISE, SOME POCKETS OF FOG ARE EXPECTED ELSEWHERE, ALONG WITH
LOCAL RIVERS AND VALLEYS.
A SIMILAR SITUATION MAY OCCUR TOMORROW, WITH FOG OCCURRING ACROSS
PORTIONS OF WEST-CENTRAL OHIO.
KEY MESSAGE 2)
HIGH PRESSURE REMAINS IN PLACE ACROSS THE EASTERN CONUS THROUGH THE
END OF THE WEEK, REINFORCED BY ANOTHER RIDGE INTO THE WEEKEND. HIGH
TEMPERATURES ARE FEW DEGREES ABOVE NORMAL, AND DRY CONDITIONS WILL
PERSIST. SOME OCCASIONS OF FROST, PRIMARILY ACROSS CENTRAL AND
SOUTH- CENTRAL OHIO ARE POSSIBLE WITH TEMPERATURES DROPPING INTO THE
MID 30S WEDNESDAY NIGHT AND FRIDAY NIGHT.
OTHERWISE, INCREASING MID AND UPPER LEVEL WILL TRY TO BRING AN
INCREASE IN CLOUD COVER THIS WEEKEND INTO EARLY NEXT WEEK. A PATTERN
CHANGE MAY FINALLY ENTER THE REGION EARLY-MIDDLE OF NEXT WEEK AS A
TROUGH MOVES INTO THE GREAT LAKES.
AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
TYPICAL FOG POTENTIAL REMAINS AT LUK, LCK, AND ILN, BUT THE POTENTIAL
FOR MORE SIGNIFICANT RESTRICTIONS ARE POSSIBLE AT DAY AND CMH WITH
FOG MOVING SOUTHWESTWARD FROM LAKE ERIE. WILL CONTINUE TO MONITOR
TRENDS AND ADJUST FORECAST AS NECESSARY.
OTHERWISE, WINDS REMAIN LESS THAN 10 KNOTS WITH PREVAILING VFR
CONDITIONS.
OUTLOOK...NO SIGNIFICANT WEATHER EXPECTED.
ILN WATCHES/WARNINGS/ADVISORIES
OH...DENSE FOG ADVISORY UNTIL 10 AM EDT THIS MORNING FOR OHZ026-034-035-
043>045.
KY...NONE.
IN...NONE.
DISCUSSION...MCGINNIS
AVIATION...MCGINNIS
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