Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 82, NWS Wilmington, OH

July 29, 2021Adams County, Scioto County, Ohio; Lewis County, Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 29, 2021, 8:36 PM EDT for Adams County, Scioto County, Ohio; Lewis County, Kentucky. It was in force for 28 min. 1 report 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: Jul 29, 2021, 8:36 PM EDT (00:36 UTC)
Expired: Jul 29, 2021, 9:04 PM EDT
In force: 28 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Lewis County, KY, Adams County, OH, Scioto County, OH

The radar

The Cincinnati radar (KILN), 108 km from the middle of the area, began a volume at 00:39 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
Jul 29, 8:49 PM EDT	TSTM WND DMG	Garrison, KY	MULTIPLE TREES DOWNED IN GARRISON KY. CORRECTED TIME OF EVENT BASED ON 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.

Issued	Product	Office	Lasted
Jul 29, 3:13 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.6 hours before the alert went out and 108 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: 2113 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 691 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted.

070 
WUUS51 KILN 300036
SVRILN
KYC135-OHC001-145-300130-
/O.NEW.KILN.SV.W.0082.210730T0036Z-210730T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
836 PM EDT Thu Jul 29 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Eastern Lewis County in northeastern Kentucky...
  Southeastern Adams County in southwestern Ohio...
  Southwestern Scioto County in southwestern Ohio...

* Until 930 PM EDT.

* At 836 PM EDT, a severe thunderstorm was located 8 miles northeast
  of Vanceburg, moving southeast at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Portsmouth, Vanceburg, Camp Dix, Rome, Sandy Springs, Buena Vista
  in Scioto County, Saint Paul, Firebrick, West Portsmouth, Tannery,
  Turkey Creek Lake, Friendship, Garrison and Rexton.

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.

&&

LAT...LON 3866 8341 3875 8340 3880 8305 3873 8300
      3873 8303 3870 8304 3868 8303 3866 8305
      3864 8305 3862 8308 3860 8307 3854 8312
      3854 8314 3849 8319 3847 8319 3845 8321
      3844 8321 3843 8324 3841 8324 3841 8327
TIME...MOT...LOC 0036Z 323DEG 28KT 3869 8323 

HAIL...0.88IN
WIND...60MPH
 
$$

Hatzos

3 follow-up statements

017 
WWUS51 KILN 300048
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
848 PM EDT Thu Jul 29 2021

KYC135-OHC001-145-300130-
/O.CON.KILN.SV.W.0082.000000T0000Z-210730T0130Z/
Lewis KY-Adams OH-Scioto OH-
848 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR EASTERN LEWIS...SOUTHEASTERN ADAMS AND SOUTHWESTERN SCIOTO
COUNTIES...

At 847 PM EDT, a severe thunderstorm was located 7 miles east of
Vanceburg, moving southeast at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Portsmouth, Vanceburg, Camp Dix, Rome, Sandy Springs, Buena Vista in
Scioto County, Saint Paul, Firebrick, West Portsmouth, Tannery,
Turkey Creek Lake, Friendship, Garrison and Rexton.

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.

&&

LAT...LON 3866 8341 3873 8340 3879 8304 3873 8300
      3873 8303 3870 8304 3868 8303 3866 8305
      3864 8305 3862 8308 3860 8307 3854 8312
      3854 8314 3849 8319 3847 8319 3845 8321
      3844 8321 3843 8324 3841 8324 3841 8327
TIME...MOT...LOC 0047Z 330DEG 26KT 3861 8319 

HAIL...0.75IN
WIND...60MPH
 
$$

Hatzos

496 
WWUS51 KILN 300055
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
855 PM EDT Thu Jul 29 2021

OHC001-145-300105-
/O.CAN.KILN.SV.W.0082.000000T0000Z-210730T0130Z/
Adams OH-Scioto OH-
855 PM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAMS AND
SOUTHWESTERN SCIOTO COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northeastern Kentucky...and southwestern Ohio.

LAT...LON 3855 8335 3863 8325 3862 8321 3862 8315
      3867 8311 3869 8306 3871 8304 3868 8303
      3862 8308 3860 8307 3854 8312 3854 8314
      3849 8319 3847 8319 3844 8322 3843 8324
      3841 8324 3841 8327
TIME...MOT...LOC 0055Z 323DEG 28KT 3856 8314 

$$

KYC135-300130-
/O.CON.KILN.SV.W.0082.000000T0000Z-210730T0130Z/
Lewis KY-
855 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTHEASTERN LEWIS COUNTY...

At 855 PM EDT, a severe thunderstorm was located 8 miles northeast of
Camp Dix, moving southeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Camp Dix, Rexton, Garrison, Tannery, Saint Paul and Firebrick. 

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.

&&

LAT...LON 3855 8335 3863 8325 3862 8321 3862 8315
      3867 8311 3869 8306 3871 8304 3868 8303
      3862 8308 3860 8307 3854 8312 3854 8314
      3849 8319 3847 8319 3844 8322 3843 8324
      3841 8324 3841 8327
TIME...MOT...LOC 0055Z 323DEG 28KT 3856 8314 

HAIL...<.75IN
WIND...60MPH
 
$$

Hatzos

432 
WWUS51 KILN 300104
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
904 PM EDT Thu Jul 29 2021

KYC135-300114-
/O.CAN.KILN.SV.W.0082.000000T0000Z-210730T0130Z/
Lewis KY-
904 PM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEWIS COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe 
limits, and is exiting the warned area. Therefore, the warning has 
been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northeastern Kentucky...and southwestern Ohio.

Please report previous 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 3855 8335 3863 8325 3862 8321 3862 8315
      3867 8311 3869 8306 3871 8304 3868 8303
      3862 8308 3860 8307 3854 8312 3854 8314
      3849 8319 3847 8319 3844 8322 3843 8324
      3841 8324 3841 8327
TIME...MOT...LOC 0103Z 323DEG 28KT 3850 8309 

$$

Hatzos

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 8:04 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	41 min
Jul 29, 8:11 PM EDT	Flash Flood Warning	ILN	Adams, Highland, Pike, Ross, Scioto	4 hr
Jul 29, 8:45 PM EDT	Areal Flood Advisory	ILN	Adams, Brown, Scioto	3 hr
Jul 29, 9:10 PM EDT	Flash Flood Warning Considerable damage threat	ILN	Adams, Highland, Pike, Ross, Scioto	4 hr
Jul 29, 9:29 PM EDT	Flash Flood Warning	ILN	Adams, Brown, Scioto	4 hr
Jul 29, 9:47 PM EDT	Areal Flood Advisory	ILN	Brown, Clermont	3 hr
Jul 30, 1:09 AM EDT	Areal Flood Warning	ILN	Pike, Scioto	7 hr
Jul 30, 1:18 AM EDT	Areal Flood Warning	ILN	Adams, Brown, Scioto	7 hr
Jul 29, 9:42 PM EDT	Severe Thunderstorm Warning	ILN	Lewis	48 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2021 Severe Thunderstorm Warnings in Kentucky, 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.