Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 34, NWS Wilmington, OH

June 18, 2021Clinton County, Fayette County, Highland County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 18, 2021, 8:51 PM EDT for Clinton County, Fayette County, Highland County, Ohio. It was in force for 39 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 18, 2021, 8:51 PM EDT (00:51 UTC)
Expired
Jun 18, 2021, 9:30 PM EDT
In force
39 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

Counties Clinton County, OH, Fayette County, OH, Highland County, OH

The radar

The Cincinnati radar (KILN), 8 km from the middle of the area, began a volume at 00:54 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.

What was reported inside it

TimeReportWhereRemark
Jun 18, 8:57 PM EDTTSTM WND GST 702 Sse Wilmington, OH
Jun 18, 9:11 PM EDTTSTM WND DMG4 Nne Lynchburg, OHLARGE TREE UPROOTED. TIME ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 18, 4:02 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.9 hours before the alert went out and 8 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 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2257 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 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
2257 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1236 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.9
Supercell composite
17.6

Open this sounding in Storm Lab

The text

As transmitted.

547 
WUUS51 KILN 190051
SVRILN
OHC027-047-071-190130-
/O.NEW.KILN.SV.W.0034.210619T0051Z-210619T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
851 PM EDT Fri Jun 18 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Southwestern Fayette County in central Ohio...
  Clinton County in southwestern Ohio...
  Northwestern Highland County in southwestern Ohio...

* Until 930 PM EDT.

* At 851 PM EDT, a severe thunderstorm was located over Wilmington,
  moving southeast at 15 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Wilmington, Sabina, Lynchburg, Leesburg, New Vienna, Russell,
  Martinsville, Midland, Highland, Melvin, New Antioch, Samantha,
  Westboro, Cuba, Lees Creek, Reesville, Morrisville, Ogden,
  Burtonville and Cowan Lake State Park.

This includes I-71 in Ohio between mile markers 52 and 53.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

A Tornado Watch remains in effect until 1100 PM EDT for central and
southwestern Ohio.

LAT...LON 3927 8394 3939 8398 3954 8382 3949 8359
      3940 8348 3918 8367
TIME...MOT...LOC 0051Z 302DEG 13KT 3941 8380 

HAIL...1.00IN
WIND...70MPH
 
$$

Hickman

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 8:10 PM EDTSevere Thunderstorm WarningILNButler, Hamilton50 min
Jun 18, 8:11 PM EDTFlash Flood WarningILNGreene, Montgomery3 hr
Jun 18, 8:11 PM EDTSevere Thunderstorm WarningILNGreene, Montgomery34 min
Jun 18, 8:14 PM EDTSevere Thunderstorm WarningILNMontgomery, Preble31 min
Jun 18, 8:18 PM EDTSevere Thunderstorm WarningILNClinton, Greene, Warren42 min
Jun 18, 8:33 PM EDTTornado WarningILNGreene, Montgomery, Warren27 min
Jun 18, 8:39 PM EDTSevere Thunderstorm WarningILNButler, Hamilton, Montgomery, Preble, Warren36 min
Jun 18, 8:46 PM EDTTornado Warning Tornado observedILNButler, Montgomery, Warren29 min
Jun 18, 9:09 PM EDTSevere Thunderstorm WarningILNAdams, Brown, Clinton, Highland51 min
Jun 18, 9:11 PM EDTTornado WarningILNHamilton34 min
Jun 18, 9:15 PM EDTSevere Thunderstorm WarningILNBrown, Butler, Clermont, Clinton, Hamilton, Warren45 min
Jun 18, 9:16 PM EDTFlash Flood WarningILNClinton, Greene, Warren3 hr
Jun 18, 9:26 PM EDTFlash Flood WarningILNButler, Montgomery, Warren3 hr
Jun 18, 9:32 PM EDTFlash Flood WarningILNClinton, Highland, Pike3 hr
Jun 18, 9:39 PM EDTAreal Flood AdvisoryILNHamilton3 hr
Jun 18, 9:49 PM EDTSevere Thunderstorm WarningILNAdams, Brown, Clermont, Pike, Scioto56 min
Jun 18, 10:34 PM EDTSevere Thunderstorm WarningILNAdams, Scioto41 min
Jun 18, 10:58 PM EDTSpecial Weather StatementILNButler, Warren32 min
Jun 18, 11:03 PM EDTSevere Thunderstorm WarningILNButler, Clermont, Hamilton, Warren42 min
Jun 18, 11:15 PM EDTAreal Flood WarningILNGreene, Montgomery6 hr
Jun 18, 11:21 PM EDTRiver Flood WarningILNGreene, Warren20 hr
Jun 18, 11:43 PM EDTSevere Thunderstorm WarningILNBrown, Clermont, Clinton, Highland, Warren19 min
Jun 19, 12:01 AM EDTSevere Thunderstorm WarningILNDarke27 min
Jun 19, 12:12 AM EDTAreal Flood AdvisoryILNWarren3 hr
Jun 19, 12:19 AM EDTSpecial Weather StatementILNMiami26 min
Jun 19, 12:23 AM EDTSpecial Weather StatementILNPreble37 min
Jun 19, 12:33 AM EDTAreal Flood WarningILNClinton, Greene, Warren6 hr
Jun 19, 1:12 AM EDTAreal Flood AdvisoryILNDarke, Preble2 hr
Jun 19, 1:55 AM EDTSpecial Weather StatementILNMontgomery35 min
Jun 19, 2:33 AM EDTAreal Flood AdvisoryILNButler, Clinton, Darke, Greene, Montgomery, Preble and 1 more3 hr
Jun 19, 3:04 AM EDTFlash Flood WarningILNClinton, Warren2 hr
Jun 19, 3:28 AM EDTAreal Flood AdvisoryILNBrown, Clinton, Highland3 hr
Jun 19, 6:39 AM EDTAreal Flood AdvisoryILNHamilton19 min
Jun 19, 6:54 AM EDTFlash Flood WarningILNHamilton13 hr
Jun 19, 8:12 AM EDTRiver Flood WarningILNHamilton4 hr
Jun 19, 8:16 AM EDTAreal Flood AdvisoryILNButler, Hamilton5 hr
Jun 19, 8:46 AM EDTSpecial Weather StatementILNClermont44 min
Jun 19, 9:08 AM EDTAreal Flood AdvisoryILNBrown, Clermont, Highland3 hr
Jun 19, 9:28 AM EDTRiver Flood WarningILNWarren10 hr
Jun 19, 9:29 AM EDTRiver Flood WarningILNClermont, Hamilton24 hr
Jun 19, 1:18 PM EDTRiver Flood AdvisoryILNHamilton9 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2021Every severe thunderstorm warning in 2021

Sources

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