Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 81, NWS Wilmington, OH

July 29, 2021Adams County, Scioto County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 29, 2021, 8:04 PM EDT for Adams County, Scioto County, Ohio. It was in force for 41 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, 8:04 PM EDT (00:04 UTC)
Expired: Jul 29, 2021, 8:45 PM EDT
In force: 41 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Adams County, OH, Scioto County, OH

The radar

The Cincinnati radar (KILN), 89 km from the middle of the area, began a volume at 00:04 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, 8:21 PM EDT	TSTM WND DMG	Otway, OH	MULTIPLE TREES AND POWER LINES DOWN IN THE NORTHERN PART OF THE COUNTY INCLUDING OTWAY. TIME ESTIMATED FROM 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, 0.1 hours before the alert went out and 89 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.

282 
WUUS51 KILN 300004
SVRILN
OHC001-145-300045-
/O.NEW.KILN.SV.W.0081.210730T0004Z-210730T0045Z/

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

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Adams County in southwestern Ohio...
  Western Scioto County in southwestern Ohio...

* Until 845 PM EDT.

* At 804 PM EDT, a severe thunderstorm was located over Peebles,
  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, West Union, Peebles, Seaman, Rome, Blue Creek, Rarden,
  Otway, Lombardsville, Sandy Springs, Buena Vista in Scioto County, 
  Dunkinsville, West Portsmouth, May Hill, Wamsley, Serpent Mound, 
  Locust Grove, Turkey Creek Lake and Friendship.

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 3863 8332 3865 8335 3866 8338 3867 8346
      3869 8348 3881 8354 3902 8360 3906 8339
      3905 8332 3901 8326 3873 8299 3873 8303
      3869 8306 3867 8312 3862 8315 3862 8321
      3863 8325 3860 8329 3860 8331
TIME...MOT...LOC 0004Z 322DEG 28KT 3894 8340 

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

Hatzos

3 follow-up statements

869 
WWUS51 KILN 300017
SVSILN

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

OHC001-145-300045-
/O.CON.KILN.SV.W.0081.000000T0000Z-210730T0045Z/
Adams OH-Scioto OH-
817 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR ADAMS AND WESTERN SCIOTO COUNTIES...

At 816 PM EDT, a severe thunderstorm was located 8 miles southeast of
Peebles, moving southeast at 35 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, West Union, Peebles, Seaman, Rome, Blue Creek, Rarden, 
Otway, Lombardsville, Sandy Springs, Dunkinsville, West Portsmouth, 
May Hill, Wamsley, Serpent Mound, Locust Grove, Turkey Creek Lake 
and Friendship.

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 3863 8332 3865 8335 3866 8338 3867 8346
      3869 8348 3881 8354 3902 8360 3906 8339
      3905 8332 3901 8326 3873 8299 3873 8303
      3869 8306 3867 8312 3862 8315 3862 8321
      3863 8325 3860 8329 3860 8331
TIME...MOT...LOC 0016Z 323DEG 29KT 3884 8333 

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

Hatzos

417 
WWUS51 KILN 300028
SVSILN

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

OHC001-145-300045-
/O.CON.KILN.SV.W.0081.000000T0000Z-210730T0045Z/
Adams OH-Scioto OH-
828 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EASTERN ADAMS AND SOUTHWESTERN SCIOTO COUNTIES...

At 828 PM EDT, a severe thunderstorm was located 8 miles northeast of
Rome, 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, West Union, Peebles, Seaman, Rome, Blue Creek, Rarden,
Otway, Lombardsville, Sandy Springs, Buena Vista in Scioto County, 
Dunkinsville, West Portsmouth, Wamsley, Turkey Creek Lake, 
Friendship and Cedar Mills.

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 3863 8332 3865 8335 3866 8338 3867 8346
      3869 8348 3881 8354 3893 8357 3898 8327
      3894 8319 3873 8299 3873 8303 3869 8306
      3867 8312 3862 8315 3862 8321 3863 8325
      3860 8329 3860 8331
TIME...MOT...LOC 0028Z 323DEG 28KT 3875 8327 

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

Hatzos

880 
WWUS51 KILN 300043
SVSILN

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

OHC001-145-300053-
/O.EXP.KILN.SV.W.0081.000000T0000Z-210730T0045Z/
Adams OH-Scioto OH-
843 PM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ADAMS AND SOUTHWESTERN
SCIOTO COUNTIES WILL EXPIRE AT 845 PM EDT...
        
An additional severe thunderstorm warning is in effect for portions 
of Adams and Scioto counties until 930 PM.

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 3863 8332 3865 8335 3866 8338 3867 8346
      3869 8348 3881 8354 3893 8357 3898 8327
      3894 8319 3873 8299 3873 8303 3869 8306
      3867 8312 3862 8315 3862 8321 3863 8325
      3860 8329 3860 8331
TIME...MOT...LOC 0043Z 323DEG 28KT 3865 8320 

$$

Hatzos

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 8:11 PM EDT	Flash Flood Warning	ILN	Adams, Highland, Pike, Ross, Scioto	4 hr
Jul 29, 8:36 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	28 min
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

Nearby

Severe Thunderstorm Warnings in Ohio, 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.