Alert archive / Ohio / Tornado Warnings in 2021

Tornado Warning 6, NWS Wilmington, OH

June 18, 20214 counties in Ohio

NWS Wilmington, OH issued this tornado warning at Jun 18, 2021, 6:11 PM EDT for 4 counties in Ohio. It was in force for 34 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, 6:11 PM EDT (22:11 UTC)
Expired
Jun 18, 2021, 6:45 PM EDT
In force
34 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Darke County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH

The radar

The Cincinnati radar (KILN), 82 km from the middle of the area, began a volume at 22:14 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, 6:35 PM EDTHAIL 0.881 S Clayton, OH
Jun 18, 6:46 PM EDTHAIL 1Clayton, OH

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 12:00Z, 10.2 hours before the alert went out and 83 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 2021-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1560 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

856 
WFUS51 KILN 182211
TORILN
OHC037-109-113-135-182245-
/O.NEW.KILN.TO.W.0006.210618T2211Z-210618T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington OH
611 PM EDT Fri Jun 18 2021

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  Northeastern Preble County in west central Ohio...
  Southeastern Darke County in west central Ohio...
  Northwestern Montgomery County in west central Ohio...
  Southwestern Miami County in west central Ohio...

* Until 645 PM EDT.
    
* At 610 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Arcanum, moving southeast at 30 mph.

  HAZARD...Tornado and ping pong ball size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Trotwood, Englewood, West Milton, Arcanum, Lewisburg, Pleasant
  Hill, Clayton, Union, Brookville, Phillipsburg, Eldorado, Verona,
  West Manchester, Laura, Pitsburg, Potsdam, Gordon, Ludlow Falls,
  Ithaca and Castine.

This includes I-70 in Ohio between mile markers 14 and 26.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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.

&&

LAT...LON 3990 8470 4009 8449 4008 8441 3998 8424
      3976 8439
TIME...MOT...LOC 2210Z 304DEG 25KT 3994 8452 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Hickman
3 follow-up statements
353 
WWUS51 KILN 182220
SVSILN

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

OHC037-109-113-135-182245-
/O.CON.KILN.TO.W.0006.000000T0000Z-210618T2245Z/
Preble OH-Darke OH-Montgomery OH-Miami OH-
620 PM EDT Fri Jun 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR
NORTHEASTERN PREBLE...SOUTHEASTERN DARKE...NORTHWESTERN MONTGOMERY
AND SOUTHWESTERN MIAMI COUNTIES...
    
At 619 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Lewisburg, moving southeast at 20 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Trotwood, Englewood, West Milton, Arcanum, Lewisburg, Clayton, Union,
Brookville, Phillipsburg, Verona, West Manchester, Laura, Pitsburg,
Potsdam, Gordon, Ludlow Falls, Ithaca, Pyrmont and Garland.

This includes I-70 in Ohio between mile markers 14 and 26.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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.

&&

LAT...LON 3988 8466 4008 8445 4007 8441 3998 8424
      3976 8439
TIME...MOT...LOC 2219Z 304DEG 18KT 3992 8449 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Hickman
958 
WWUS51 KILN 182230
SVSILN

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

OHC037-109-113-135-182245-
/O.CON.KILN.TO.W.0006.000000T0000Z-210618T2245Z/
Preble OH-Darke OH-Montgomery OH-Miami OH-
630 PM EDT Fri Jun 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR
NORTHEASTERN PREBLE...SOUTHEASTERN DARKE...NORTHWESTERN MONTGOMERY
AND SOUTHWESTERN MIAMI COUNTIES...
    
At 629 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Lewisburg, moving southeast at 20 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Trotwood, Englewood, West Milton, Lewisburg, Clayton, Union,
Brookville, Phillipsburg, Verona, Laura, Pitsburg, Potsdam, Gordon,
Ludlow Falls, Pyrmont and Garland.

This includes I-70 in Ohio between mile markers 14 and 26.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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.

&&

LAT...LON 3986 8461 4006 8443 4007 8441 3998 8424
      3976 8439
TIME...MOT...LOC 2229Z 303DEG 16KT 3991 8446 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Hickman
550 
WWUS51 KILN 182240
SVSILN

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

OHC037-109-113-135-182250-
/O.EXP.KILN.TO.W.0006.000000T0000Z-210618T2245Z/
Preble OH-Darke OH-Montgomery OH-Miami OH-
640 PM EDT Fri Jun 18 2021

...THE TORNADO WARNING FOR NORTHEASTERN PREBLE...SOUTHEASTERN
DARKE...NORTHWESTERN MONTGOMERY AND SOUTHWESTERN MIAMI COUNTIES WILL
EXPIRE AT 645 PM EDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

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

Please report previous tornadoes, wind damage or hail to the National
Weather Service by going to our website at weather.gov/iln and
submitting your report via social media.

LAT...LON 3986 8461 4006 8443 4007 8441 3998 8424
      3976 8439
TIME...MOT...LOC 2240Z 304DEG 25KT 3987 8438 

$$

Hickman

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 3:48 AM EDTFlash Flood WatchILNAdams, Auglaize, Brown, Butler, Champaign, Clark and 25 more33 hr
Jun 18, 8:42 AM EDTSpecial Weather StatementILNAuglaize33 min
Jun 18, 9:10 AM EDTSpecial Weather StatementILNAuglaize35 min
Jun 18, 9:12 AM EDTSpecial Weather StatementILNHardin33 min
Jun 18, 9:38 AM EDTSpecial Weather StatementILNChampaign, Logan, Shelby37 min
Jun 18, 9:45 AM EDTSpecial Weather StatementILNMiami, Preble30 min
Jun 18, 10:03 AM EDTSpecial Weather StatementILNButler, Preble27 min
Jun 18, 10:13 AM EDTSpecial Weather StatementILNMontgomery, Preble32 min
Jun 18, 10:28 AM EDTSpecial Weather StatementILNButler, Preble32 min
Jun 18, 10:32 AM EDTSpecial Weather StatementILNHamilton28 min
Jun 18, 10:57 AM EDTSpecial Weather StatementILNButler, Hamilton, Warren33 min
Jun 18, 11:26 AM EDTSpecial Weather StatementILNBrown, Clermont, Warren34 min
Jun 18, 11:37 AM EDTSevere Thunderstorm WarningILNClermont25 min
Jun 18, 3:47 PM EDTSevere Thunderstorm WarningILNMercer43 min
Jun 18, 3:59 PM EDTTornado Warning Tornado observedILNMercer31 min
Jun 18, 4:11 PM EDTTornado Warning Tornado observedConsiderable damage threatILNDarke, Mercer34 min
Jun 18, 4:41 PM EDTSpecial Weather StatementILNShelby34 min
Jun 18, 4:48 PM EDTSevere Thunderstorm WarningILNDarke, Miami, Shelby27 min
Jun 18, 5:09 PM EDTTornado WarningILNDarke, Miami, Shelby36 min
Jun 18, 5:16 PM EDTSevere Thunderstorm WarningILNDarke44 min
Jun 18, 5:34 PM EDTTornado WarningILNDarke26 min
Jun 18, 5:57 PM EDTSevere Thunderstorm WarningILNClark, Greene, Miami, Montgomery33 min
Jun 18, 6:00 PM EDTTornado WarningILNDarke, Miami, Montgomery, Preble30 min
Jun 18, 6:39 PM EDTSevere Thunderstorm WarningILNGreene, Miami, Montgomery51 min
Jun 18, 6:53 PM EDTAreal Flood AdvisoryILNMontgomery6 hr
Jun 18, 7:00 PM EDTSpecial Weather StatementILNDarke30 min
Jun 18, 7:13 PM EDTSevere Thunderstorm WarningILNDarke32 min
Jun 18, 7:19 PM EDTAreal Flood AdvisoryILNGreene6 hr
Jun 18, 7:19 PM EDTSevere Thunderstorm WarningILNGreene, Montgomery41 min
Jun 18, 7:53 PM EDTSevere Thunderstorm WarningILNClinton, Fayette, Greene, Warren52 min

Nearby

Tornado Warnings in Ohio, 2021Every tornado warning in 2021Tornadoes 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.