Severe Thunderstorm Warning 261, NWS Wilmington, OH

Area Forecast Discussion
National Weather Service Wilmington OH
727 PM EDT Wed Sep 9 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...
1) Hot today, cooler the next couple of days, and then warming again
into early next week.

2) A system will bring thunderstorms to the region today into
Thursday. This will bring the potential for severe weather this
afternoon into the evening hours and a flood potential Wednesday
night into Thursday. Additional thunderstorms possible Friday into
Saturday.

&&

.DISCUSSION...
KEY MESSAGE 1)
Hot conditions will be present today with highs in the upper 80s to
lower 90s. Some heat index values will be around 100. Cooler
temperatures are expected the next couple of days with cloud cover,
cooler air, and precipitation. Temperatures will gradually start to
rise over the weekend and into next week.

KEY MESSAGE 2)
Thunderstorms will work into the region this afternoon into the
evening hours. Some of these storms will have the potential to be
severe with damaging winds the primary threat. Thunderstorms will
linger into the night, however expect some decrease in activity for a
period overnight. Another surge of moisture will work into the region
on Thursday bringing additional showers and thunderstorms. The
heaviest precipitation amounts on Thursday are expected to be across
the southern half of the forecast area. Will have to watch for the
potential for multiple thunderstorms moving across the area
especially across southern portions of the region and the potential
for flash flooding. Confidence was not high enough however to go with
a flood watch.

Additional showers and storms will be possible on Friday, primarily
across southern portions of the region. Coverage works northward
Friday night into Saturday.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
Mid level shortwave to pass thru the Great Lakes with an associated
surface cold front sagging slowly south into the Ohio Valley
overnight into Thursday. Surface dew points in the lower and middle
70s has resulted in moderate instability ahead of a pre-frontal
surface trof that was pushing into the I-70 corridor. Expect
scattered storms to continue to develop into a broken line that
affects the TAF sites this evening. DCAPE values of 800 to 1000 J/KG
suggests that some of these storms may contain gusty to damaging
winds. Have tempo groups in the TAf sites to account for these
evening storms. Expect a generally lull in pcpn later this evening
into the overnight hours. A signal for MVFR to possible IFR ceilings
exists for late tonight into Thursday morning. Have limited mention
to MVFR restrictions at this time. Additional showers and
thunderstorms develop Thursday as the front sags into the area. The
best coverage of storms looks to affect the southern TAF sites.

 OUTLOOK...MVFR ceilings and visibilities possible into Friday
morning. Additional thunderstorms possible on Saturday.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

DISCUSSION...08
AVIATION...AR

Hazardous Weather Outlook
National Weather Service Wilmington OH
316 PM EDT Wed Sep 9 2026

INZ050-058-059-OHZ026-034-035-042>046-051>056-060>062-101930-
Wayne-Fayette-Union-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-
Delaware-Miami-Champaign-Clark-Madison-Franklin-Licking-Preble-
Montgomery-Greene-
316 PM EDT Wed Sep 9 2026

This Hazardous Weather Outlook is for east central Indiana, central
Ohio and west central Ohio.

.DAY ONE...This afternoon and tonight.

A few strong to severe thunderstorms are possible into this evening.
Strong to damaging winds are the greatest threat. In addition,
locally heavy rainfall is possible tonight which could lead to flash
flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon into the evening
hours.

INZ066-073>075-080-KYZ089>100-OHZ063>065-070>074-077>082-088-101930-
Franklin-Ripley-Dearborn-Ohio-Switzerland-Carroll-Gallatin-Boone-
Kenton-Campbell-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-
Fayette-Pickaway-Fairfield-Butler-Warren-Clinton-Ross-Hocking-
Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto-
316 PM EDT Wed Sep 9 2026

This Hazardous Weather Outlook is for southeast Indiana, northeast
Kentucky, northern Kentucky, central Ohio, south central Ohio and
southwest Ohio.

.DAY ONE...This afternoon and tonight.

Heat indices in the upper 90s to low 100s are possible into the early
evening hours.

A few strong to severe thunderstorms are possible into this evening.
Strong to damaging winds are the greatest threat. In addition,
locally heavy rainfall is possible tonight which could lead to flash
flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Repeated rounds of storms and locally heavy rainfall are possible
again on Thursday, leading to the potential for flash flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed during the evening hours.

Special Weather Statement
National Weather Service Wilmington OH
747 PM EDT Wed Sep 9 2026

OHZ045-052>054-100030-
Champaign OH-Madison OH-Union OH-Clark OH-
747 PM EDT Wed Sep 9 2026

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN
CHAMPAIGN AND NORTHEASTERN CLARK COUNTIES IN WEST CENTRAL OHIO...
SOUTHWESTERN UNION AND NORTHEASTERN MADISON COUNTIES IN CENTRAL OHIO
THROUGH 830 PM EDT...

At 747 PM EDT, a strong thunderstorm was located near Urbana, moving
east at 35 mph.

HAZARD...Wind gusts up to 45 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Urbana, London, Northridge, West Jefferson, Mechanicsburg, Choctaw
Lake, Brighton, Milford Center, Lafayette, Tremont City, Woodstock,
Catawba, Unionville Center, Mutual, Cable, Westville, Rosedale, State
Route 4 at State Route 161, Resaca, and Powhattan.

This includes I-70 in Ohio between mile markers 68 and 83.

If outdoors, consider seeking shelter inside a sturdy building.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

&&

LAT...LON 4001 8391 4016 8390 4020 8333 4000 8327
      3988 8338
TIME...MOT...LOC 2347Z 274DEG 31KT 4010 8384

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH

Clark

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Special Weather Statement
National Weather Service Wilmington OH
811 PM EDT Wed Sep 9 2026

OHZ045-046-054>056-065-100100-
Licking OH-Fairfield OH-Delaware OH-Madison OH-Union OH-Franklin OH-
811 PM EDT Wed Sep 9 2026

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF FRANKLIN...
NORTHWESTERN FAIRFIELD...SOUTHERN DELAWARE...LICKING...SOUTHEASTERN
UNION AND NORTHEASTERN MADISON COUNTIES IN CENTRAL OHIO THROUGH 900
PM EDT...

At 810 PM EDT, a strong thunderstorm was located near Plain City,
moving east at 45 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Hail may cause minor damage to
         vegetation.

Locations impacted include...
Columbus, Newark, Dublin, Westerville, Reynoldsburg, Grove City,
Delaware, Upper Arlington, Gahanna, Hilliard, Pickerington,
Worthington, Bexley, Heath, Granville, Jefferson, Pataskala, Powell,
Groveport, and Johnstown.

This includes the following Interstates...
 I-70 in Ohio between mile markers 81 and 130.
 I-71 in Ohio between mile markers 101 and 132.

If outdoors, consider seeking shelter inside a sturdy building.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

&&

LAT...LON 4004 8219 3987 8268 3988 8337 4020 8328
      4035 8274 4028 8275 4027 8248 4025 8248
      4024 8218
TIME...MOT...LOC 0010Z 273DEG 49KT 4011 8321

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Clark