Alert archive / Ohio / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 88, NWS Wilmington, OH

May 26, 2019Delaware County, Union County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 26, 2019, 7:08 AM EDT for Delaware County, Union County, Ohio. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 26, 2019, 7:08 AM EDT (11:08 UTC)
Expired
May 26, 2019, 7:45 AM EDT
In force
37 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Delaware County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 111 km from the middle of the area, began a volume at 11:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 26, 5:57 AM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 11.1 hours before the alert went out and 109 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2019-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
1503 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at May 26, 4:38 AM EDT, 2 hours 30 minutes earlier.

Area forecast discussion, May 26, 4:38 AM EDT, 2 hours 30 minutes before
AREA FORECAST DISCUSSION
National Weather Service Wilmington OH
438 AM EDT Sun May 26 2019

.SYNOPSIS...
Showers and thunderstorms will affect the region today as a
front drops south into the area. The front will lift back north
on Memorial Day keeping scattered storms in the forecast. Warm
and humid conditions will be the rule into next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Thunderstorm complex in western Indiana is forecast to reach
western sections of the fa by 12Z. Models are suggesting that
it will be weakening as it does. This initial complex should be
east of the fa by noon.

Additional thunderstorms are expected to develop in the
afternoon ahead of a surface front dropping south into region.
Have gone likely PoPs across the middle of the fa. Westerly
flow around 40 kts will aid development for some organized
storms. SPC has left the much of the region in a slight risk
for today with strong winds and hail the main threats. Will
continue the mention in the HWO.

Today will be another warm and humid day. Dewpoints will remain
in the mid 60s, while highs will ranging from the upper 70a in
West Central Ohio to the mid to upper 80s in nrn KY.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/...
The front will drop south of the region before stalling near the
Ohio River. Pcpn should diminish with the loss of heating.
Temperatures will be a little cooler on the north side of the
front, as lows will range in the lower 60s in the north to the
mid 60s south.

The front will lift north across the region on Monday. Expect
some scattered storms to pop around the front throughout the
day. Highs will one again range from the upper 70s to mid 80s.

Mid level ridge builds Monday night and Tuesday, pushing the
front into the Great Lakes. Storms will be sliding east through
the Lakes and the southern edge could brush northern areas
Monday night. Tuesday is forecast to be dry with highs in the
mid to upper 80s.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
Southwest flow aloft ahead of an upper level trof will keep
moist and unstable air advecting into the region. Showers and
thunderstorms will develop during the day. As the upper level
trof slides east Wednesday night and Thursday, showers and
thunderstorms will remain a possibility. Finally by Thursday
night, a cold front will push through the region, bringing an
end to the active weather.

Friday should be dry as high pressure ridge slides across the
area, but scattered thunderstorms will be possible again by
Saturday as another upper level trof slides through the Great
Lakes.

&&

.AVIATION /08Z SUNDAY THROUGH THURSDAY/...
Shortwave energy ejecting downstream of an upper level trough
pushing east into MO will cross northern Ohio early today. As it
does, moisture profiles will exceed 1.5" and approach 2" PWAT
values. This ample lift and available moisture will see
thunderstorm activity begin in the north this morning, spreading
slowly south later in the day with a weak surface cold front.

MVFR conditions will be found briefly in thunderstorm activity,
primarily this afternoon. Otherwise, VFR conditions will be
found with the exception of pre-dawn MVFR vsbys at KLUK, at
times dropping to LIFR or VLIFR early in the TAF period.

Earlier forecast discussion is well said and remains valid
reasoning with the latest TAF update:
On Sunday, in a very moist airmass, aforementioned embedded
energy aloft will move west to east across the region during the
afternoon and evening. At the same time, frontal boundary will
slowly sag south into the area. With the embedded energy aloft,
increasing low level forcing with the front, and increasing
diurnal instability, will result in an increase in
shower/thunderstorm coverage throughout the day. Have placed
some MVFR visibilities in the terminals at this time. Given
moist airmass, thunderstorms will be capable of MVFR ceilings
and IFR or less visibilities. However, this is too early to
pinpoint at the terminals at this time. Winds will gradually
shift from the southwest to the west and then eventually
northwest as the front sags slowly south through the region
during the afternoon and evening.

Once the embedded energy moves by later Sunday evening, and with
the loss of diurnal instability, coverage of showers and
thunderstorms should wane. Models suggest that MVFR/IFR ceilings
and visibilities may develop in the moist environment near and
just behind the slow-moving frontal boundary as it drifts
toward the Ohio River.

OUTLOOK...MVFR/IFR ceilings and visibilities possible Monday
morning. Thunderstorms possible at times Monday, then again
Wednesday and Thursday.

&&

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

&&

SYNOPSIS...AR/Sites
NEAR TERM...Sites
SHORT TERM...Sites
LONG TERM...Sites
AVIATION...Franks
Hazardous weather outlook, May 26, 5:01 AM EDT, 2 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
501 AM EDT Sun May 26 2019

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-270915-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke-
Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-
Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-
Fairfield-Butler-Warren-Clinton-Ross-Hocking-Hamilton-Clermont-Brown-
Highland-Adams-Pike-Scioto-
501 AM EDT Sun May 26 2019

This Hazardous Weather Outlook is for East Central Indiana,
Southeast Indiana, Northeast Kentucky, Northern Kentucky, Central
Ohio, South Central Ohio, Southwest Ohio and West Central Ohio.

.DAY ONE...Today and tonight.

Showers and thunderstorms will affect the region today. Damaging
winds and large hail will be a possibility with these storms. Heavy
rainfall will be a concern, resulting in potential flooding issues.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

An isolated strong to severe thunderstorm will be possible Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

In the hours before

Special weather statement, May 26, 6:06 AM EDT, 1 hour 2 minutes before
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Special weather statement, May 26, 6:24 AM EDT, 44 minutes before
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Special weather statement, May 26, 6:35 AM EDT, 33 minutes before
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Special weather statement, May 26, 6:59 AM EDT, 9 minutes before
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Local storm report, May 26, 7:01 AM EDT, 7 minutes before
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Local storm report, May 26, 7:06 AM EDT, 2 minutes before
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The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 5:14 AM EDTSpecial Weather StatementILNMercer31 min
May 26, 5:42 AM EDTSpecial Weather StatementILNDarke33 min
May 26, 5:53 AM EDTSevere Thunderstorm WarningILNDarke37 min
May 26, 6:06 AM EDTSpecial Weather StatementILNAuglaize, Logan, Miami, Shelby24 min
May 26, 6:11 AM EDTSevere Thunderstorm WarningILNMiami, Shelby34 min
May 26, 6:24 AM EDTSpecial Weather StatementILNHardin36 min
May 26, 6:35 AM EDTSpecial Weather StatementILNChampaign, Clark25 min
May 26, 6:56 AM EDTSevere Thunderstorm WarningILNHardin, Logan, Union16 min
May 26, 6:59 AM EDTSpecial Weather StatementILNMadison31 min
May 26, 7:16 AM EDTSpecial Weather StatementILNUnion29 min
May 26, 7:26 AM EDTSpecial Weather StatementILNFranklin34 min
May 26, 7:31 AM EDTSevere Thunderstorm WarningILNDelaware, Franklin, Licking29 min
May 26, 7:57 AM EDTSpecial Weather StatementILNLicking48 min
May 26, 8:19 AM EDTSpecial Weather StatementILNChampaign26 min
May 26, 1:25 PM EDTSpecial Weather StatementILNRoss35 min
May 26, 1:37 PM EDTSevere Thunderstorm WarningILNFairfield, Hocking, Pickaway, Ross38 min
May 26, 2:00 PM EDTSevere Thunderstorm WarningILNHocking45 min
May 26, 2:45 PM EDTSpecial Weather StatementILNHocking30 min
May 26, 3:00 PM EDTSpecial Weather StatementILNWarren30 min
May 26, 3:03 PM EDTSevere Thunderstorm WarningILNButler, Clermont, Hamilton, Warren42 min
May 26, 3:37 PM EDTSpecial Weather StatementILNClinton53 min
May 26, 3:58 PM EDTSpecial Weather StatementILNClermont, Hamilton32 min
May 26, 4:07 PM EDTSevere Thunderstorm WarningILNHamilton24 min
May 26, 4:19 PM EDTSpecial Weather StatementILNClermont26 min
May 26, 4:42 PM EDTSpecial Weather StatementILNBrown, Clermont33 min
May 26, 4:51 PM EDTSpecial Weather StatementILNRoss24 min
May 26, 5:15 PM EDTSpecial Weather StatementILNPike30 min
May 26, 5:37 PM EDTSpecial Weather StatementILNClinton, Warren23 min
May 26, 6:10 PM EDTSpecial Weather StatementILNHocking35 min
May 26, 3:17 PM EDTSpecial Weather StatementILNPendleton28 min
May 26, 3:52 PM EDTSpecial Weather StatementILNMason, Robertson23 min
May 26, 3:54 PM EDTSpecial Weather StatementILNBoone36 min
May 26, 4:29 PM EDTSpecial Weather StatementILNKenton31 min
May 26, 4:47 PM EDTSpecial Weather StatementILNCampbell28 min
May 26, 5:29 PM EDTSpecial Weather StatementILNLewis31 min
May 26, 3:33 PM EDTSpecial Weather StatementILNRipley27 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2019Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.