Alert archive / Ohio / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 59, NWS Wilmington, OH

May 30, 2018Greene County, Montgomery County, Warren County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 30, 2018, 3:18 PM EDT for Greene County, Montgomery County, Warren County, Ohio. It was in force for 23 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 30, 2018, 3:18 PM EDT (19:18 UTC)
Expired
May 30, 2018, 3:41 PM EDT
In force
23 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Greene County, OH, Montgomery County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 34 km from the middle of the area, began a volume at 19:17 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.3 hours before the alert went out and 35 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 12:00Z on 2018-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 12:00Z on 2018-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.1939Sfc1 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
21 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1004 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 30, 3:16 PM EDT, 2 minutes earlier.

Area forecast discussion, May 30, 3:16 PM EDT, 2 minutes before
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Hazardous weather outlook, May 30, 4:26 AM EDT, 10 hours 52 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
426 AM EDT Wed May 30 2018

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-311100-
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-
426 AM EDT Wed May 30 2018

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.
The remnants of Alberto will move through the region today and
tonight. This will lead to occasional showers and thunderstorms.

Some of the storms will be capable of producing heavy rainfall this
afternoon and evening, leading to the possibility of localized flash
flooding.

In addition, an isolated weak tornado cannot be ruled out later this
afternoon into this evening, primarily for areas north of the Ohio
River.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, May 30, 3:02 PM EDT, 16 minutes before
Special Weather Statement
National Weather Service Wilmington OH
302 PM EDT WED MAY 30 2018

OHZ061-062-070-071-077-078-301930-
Hamilton OH-Clermont OH-Montgomery OH-Warren OH-Butler OH-Greene OH-
302 PM EDT WED MAY 30 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HAMILTON...
NORTHEASTERN BUTLER...NORTHWESTERN CLERMONT...WARREN...SOUTHWESTERN
GREENE AND SOUTHEASTERN MONTGOMERY COUNTIES UNTIL 330 PM EDT...

At 301 PM EDT, radar indicated a strong thunderstorm near Kings
Island, moving north at 50 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
Very heavy rain...

Locations impacted include...
Kettering, Middletown, Mason, Miamisburg, Lebanon, Springboro,
Monroe, Loveland, Franklin, Montgomery, Bellbrook, Carlisle, West
Carrollton, Waynesville, Morrow, Kings Island, Sixteen Mile Stand,
Four Bridges, Remington and Hunter.

This includes the following Interstates...
 I-71 in Ohio between mile markers 18 and 37.
 I-75 in Ohio between mile markers 27 and 46.

Water will pond on roads and may quickly fill roadside ditches and
small streams.

Residents in these areas should remain alert. If this storm becomes
stronger, then a warning may be needed.

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 3921 8411 3923 8434 3965 8439 3969 8403
TIME...MOT...LOC 1901Z 185DEG 42KT 3930 8422

Binau

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 3:02 PM EDTSpecial Weather StatementILNWarren28 min
May 30, 3:30 PM EDTSpecial Weather StatementILNClinton, Greene45 min
May 30, 3:38 PM EDTSevere Thunderstorm WarningILNClark, Greene, Miami, Montgomery20 min
May 30, 3:40 PM EDTSpecial Weather StatementILNMiami, Shelby50 min
May 30, 4:02 PM EDTSevere Thunderstorm WarningILNClark, Greene27 min
May 30, 4:24 PM EDTSpecial Weather StatementILNAuglaize36 min
May 30, 4:32 PM EDTSpecial Weather StatementILNPike, Scioto28 min
May 30, 4:38 PM EDTSpecial Weather StatementILNLicking37 min
May 30, 5:12 PM EDTSpecial Weather StatementILNPike33 min
May 30, 5:17 PM EDTSpecial Weather StatementILNFairfield43 min
May 30, 5:48 PM EDTSpecial Weather StatementILNPickaway42 min
May 30, 6:06 PM EDTSpecial Weather StatementILNLicking24 min
May 30, 6:23 PM EDTSpecial Weather StatementILNHocking37 min
May 30, 6:29 PM EDTSpecial Weather StatementILNLicking31 min
May 30, 7:31 PM EDTSpecial Weather StatementILNButler, Hamilton44 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2018Every severe thunderstorm warning in 2018

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.