Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 30, NWS Wilmington, OH

June 18, 2021Montgomery County, Preble County, Ohio; Union County, Wayne County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 18, 2021, 8:14 PM EDT for Montgomery County, Preble County, Ohio; Union County, Wayne County, Indiana. It was in force for 31 min. 3 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, 8:14 PM EDT (00:14 UTC)
Expired: Jun 18, 2021, 8:45 PM EDT
In force: 31 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Union County, IN, Wayne County, IN, Montgomery County, OH, Preble County, OH

The radar

The Cincinnati radar (KILN), 76 km from the middle of the area, began a volume at 00:16 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

Time	Report	Where	Remark
Jun 18, 8:25 PM EDT	TSTM WND DMG	Eaton, OH	TREES AND POWER LINES REPORTED DOWN IN EATON. TIME ESTIMATED FROM RADAR.
Jun 18, 8:30 PM EDT	TSTM WND DMG	4 E West Alexandria, OH	TREE BRANCHES AND TRIM OF HOUSE DOWN. TIME ESTIMATED FROM RADAR.
Jun 18, 8:38 PM EDT	TORNADO 1	4 Ese Gratis, OH	NWS STORM SURVEY CONFIRMS AN EF1 TORNADO WITH A PATH LENGTH OF 2.8 MILES. DAMAGE MOSTLY TO TREES WITH MINOR ROOF DAMAGE TO A HOME AND A BARN.

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.

Issued	Product	Office	Lasted
Jun 18, 4:02 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.2 hours before the alert went out and 78 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

801 
WUUS51 KILN 190014
SVRILN
INC161-177-OHC113-135-190045-
/O.NEW.KILN.SV.W.0030.210619T0014Z-210619T0045Z/

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

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wayne County in east central Indiana...
  Northeastern Union County in east central Indiana...
  Preble County in west central Ohio...
  West central Montgomery County in west central Ohio...

* Until 845 PM EDT.

* At 814 PM EDT, a severe thunderstorm was located near New Paris,
  moving east at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and power lines.

* Locations impacted include...
  Richmond, Trotwood, Eaton, Camden, Lewisburg, New Paris, West
  Alexandria, Gratis, Brookville, New Lebanon, Farmersville, Spring
  Grove, West Elkton, Boston, Richmond Municipal Airport, Oklahoma,
  West Florence, Wheatville, Interstate 70 at US Route 127 and
  Muttonville.

This includes the following Interstates...
 I-70 in Indiana between mile markers 152 and 156.
 I-70 in Ohio between mile markers 0 and 19.

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 east central
Indiana...and southwestern and west central Ohio.

LAT...LON 3991 8487 3982 8435 3959 8447 3959 8448
      3957 8448 3957 8457 3973 8494
TIME...MOT...LOC 0014Z 290DEG 37KT 3977 8479 

HAIL...1.00IN
WIND...60MPH
 
$$

Campbell

1 follow-up statement

957 
WWUS51 KILN 190023
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
823 PM EDT Fri Jun 18 2021

INC161-177-OHC113-135-190045-
/O.CON.KILN.SV.W.0030.000000T0000Z-210619T0045Z/
Wayne IN-Union IN-Preble OH-Montgomery OH-
823 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR SOUTHEASTERN WAYNE AND NORTHEASTERN UNION COUNTIES IN EAST
CENTRAL INDIANA...CENTRAL PREBLE AND WEST CENTRAL MONTGOMERY COUNTIES
IN WEST CENTRAL OHIO...

At 823 PM EDT, a severe thunderstorm was located over Eaton, moving
east at 45 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...
Richmond, Eaton, Camden, West Alexandria, Gratis, New Lebanon,
Farmersville, West Elkton, Boston, Richmond Municipal Airport,
Oklahoma, West Florence, Wheatville, Muttonville, Sugar Valley, Lake
Lakengren and New Hope.

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 east central
Indiana...and southwestern and west central Ohio.

LAT...LON 3982 8482 3980 8436 3959 8447 3959 8448
      3957 8448 3957 8457 3973 8488
TIME...MOT...LOC 0023Z 290DEG 39KT 3974 8467 

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

Campbell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:10 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Hamilton	50 min
Jun 18, 8:11 PM EDT	Flash Flood Warning	ILN	Greene, Montgomery	3 hr
Jun 18, 8:11 PM EDT	Severe Thunderstorm Warning	ILN	Greene, Montgomery	34 min
Jun 18, 8:18 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Greene, Warren	42 min
Jun 18, 8:33 PM EDT	Tornado Warning	ILN	Greene, Montgomery, Warren	27 min
Jun 18, 8:39 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Hamilton, Montgomery, Preble, Warren	36 min
Jun 18, 8:46 PM EDT	Tornado Warning Tornado observed	ILN	Butler, Montgomery, Warren	29 min
Jun 18, 8:51 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Highland	39 min
Jun 18, 9:09 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Clinton, Highland	51 min
Jun 18, 9:11 PM EDT	Tornado Warning	ILN	Hamilton	34 min
Jun 18, 9:15 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Butler, Clermont, Clinton, Hamilton, Warren	45 min
Jun 18, 9:16 PM EDT	Flash Flood Warning	ILN	Clinton, Greene, Warren	3 hr
Jun 18, 9:26 PM EDT	Flash Flood Warning	ILN	Butler, Montgomery, Warren	3 hr
Jun 18, 9:32 PM EDT	Flash Flood Warning	ILN	Clinton, Highland, Pike	3 hr
Jun 18, 9:39 PM EDT	Areal Flood Advisory	ILN	Hamilton	3 hr
Jun 18, 9:49 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Clermont, Pike, Scioto	56 min
Jun 18, 10:34 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	41 min
Jun 18, 10:58 PM EDT	Special Weather Statement	ILN	Butler, Warren	32 min
Jun 18, 11:03 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Clermont, Hamilton, Warren	42 min
Jun 18, 11:15 PM EDT	Areal Flood Warning	ILN	Greene, Montgomery	6 hr
Jun 18, 11:21 PM EDT	River Flood Warning	ILN	Greene, Warren	20 hr
Jun 18, 11:43 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Clinton, Highland, Warren	19 min
Jun 19, 12:01 AM EDT	Severe Thunderstorm Warning	ILN	Darke	27 min
Jun 19, 12:12 AM EDT	Areal Flood Advisory	ILN	Warren	3 hr
Jun 19, 12:19 AM EDT	Special Weather Statement	ILN	Miami	26 min
Jun 19, 12:23 AM EDT	Special Weather Statement	ILN	Preble	37 min
Jun 19, 12:33 AM EDT	Areal Flood Warning	ILN	Clinton, Greene, Warren	6 hr
Jun 19, 1:12 AM EDT	Areal Flood Advisory	ILN	Darke, Preble	2 hr
Jun 19, 1:55 AM EDT	Special Weather Statement	ILN	Montgomery	35 min
Jun 19, 2:33 AM EDT	Areal Flood Advisory	ILN	Butler, Clinton, Darke, Greene, Montgomery, Preble and 1 more	3 hr
Jun 19, 3:04 AM EDT	Flash Flood Warning	ILN	Clinton, Warren	2 hr
Jun 19, 3:28 AM EDT	Areal Flood Advisory	ILN	Brown, Clinton, Highland	3 hr
Jun 19, 6:39 AM EDT	Areal Flood Advisory	ILN	Hamilton	19 min
Jun 19, 6:54 AM EDT	Flash Flood Warning	ILN	Hamilton	13 hr
Jun 19, 8:12 AM EDT	River Flood Warning	ILN	Hamilton	4 hr
Jun 19, 8:16 AM EDT	Areal Flood Advisory	ILN	Butler, Hamilton	5 hr
Jun 19, 8:46 AM EDT	Special Weather Statement	ILN	Clermont	44 min
Jun 19, 9:08 AM EDT	Areal Flood Advisory	ILN	Brown, Clermont, Highland	3 hr
Jun 19, 9:28 AM EDT	River Flood Warning	ILN	Warren	10 hr
Jun 19, 9:29 AM EDT	River Flood Warning	ILN	Clermont, Hamilton	24 hr
Jun 19, 1:18 PM EDT	River Flood Advisory	ILN	Hamilton	9 hr
Jun 18, 8:44 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Franklin, Ripley	46 min
Jun 18, 8:56 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Ohio, Ripley, Switzerland	34 min
Jun 18, 9:00 PM EDT	Flash Flood Warning	ILN	Dearborn, Franklin, Ripley	3 hr
Jun 18, 9:02 PM EDT	Tornado Warning	ILN	Dearborn, Ohio, Ripley	28 min
Jun 18, 9:30 PM EDT	Severe Thunderstorm Warning	ILN	Ohio, Switzerland	15 min
Jun 18, 11:59 PM EDT	Areal Flood Advisory	ILN	Switzerland	3 hr
Jun 19, 1:28 AM EDT	Flash Flood Warning	ILN	Switzerland	4 hr
Jun 19, 3:44 AM EDT	Areal Flood Advisory	ILN	Dearborn, Franklin, Ripley, Switzerland	3 hr
Jun 19, 4:40 AM EDT	Areal Flood Advisory	ILN	Ohio, Switzerland	5 hr
Jun 19, 8:11 AM EDT	Special Weather Statement	ILN	Ohio, Switzerland	34 min
Jun 19, 10:02 AM EDT	Areal Flood Warning	ILN	Ohio, Switzerland	6 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2021 Severe Thunderstorm Warnings in Indiana, 2021 Every 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.