Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 66, NWS Cleveland, OH

August 10, 2021Stark County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 10, 2021, 11:09 AM EDT for Stark County, Ohio. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 10, 2021, 11:09 AM EDT (15:09 UTC)
Expired
Aug 10, 2021, 12:15 PM EDT
In force
66 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Stark County, OH

The radar

The Cleveland radar (KCLE), 89 km from the middle of the area, began a volume at 15:11 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.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 3.2 hours before the alert went out and 114 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, Pittsburgh, PA at 12:00Z on 2021-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 521 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, Pittsburgh, PA at 12:00Z on 2021-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.1939Sfc1 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
521 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
727 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted.

166 
WUUS51 KCLE 101509
SVRCLE
OHC151-101615-
/O.NEW.KCLE.SV.W.0066.210810T1509Z-210810T1615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
1109 AM EDT Tue Aug 10 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Southern Stark County in northeastern Ohio...

* Until 1215 PM EDT.

* At 1109 AM EDT, a severe thunderstorm was located near Wilmot, or
  10 miles northwest of Dover, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Massillon, Minerva, Brewster, Navarre, Waynesburg, East Sparta,
  Wilmot, Beach City, Bolivar and Robertsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm. 
Move indoors immediately. Lightning is one of nature's leading 
killers. Remember, if you can hear thunder, you are close enough to 
be struck by lightning.

&&

LAT...LON 4074 8164 4078 8109 4073 8109 4072 8124
      4065 8124 4065 8144 4066 8144 4065 8147
      4064 8165
TIME...MOT...LOC 1509Z 262DEG 27KT 4067 8158 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Jaszka
3 follow-up statements
286 
WWUS51 KCLE 101541
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
1141 AM EDT Tue Aug 10 2021

OHC151-101615-
/O.CON.KCLE.SV.W.0066.000000T0000Z-210810T1615Z/
Stark OH-
1141 AM EDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT
FOR SOUTHEASTERN STARK COUNTY...

At 1141 AM EDT, a severe thunderstorm was located over East Sparta,
or 8 miles south of Canton, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Minerva, Waynesburg, East Sparta, Bolivar and Robertsville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4065 8149 4076 8140 4078 8109 4073 8109
      4072 8124 4065 8124 4065 8144 4066 8144
      4065 8147
TIME...MOT...LOC 1541Z 266DEG 31KT 4069 8132 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Jaszka
867 
WWUS51 KCLE 101558
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
1158 AM EDT Tue Aug 10 2021

OHC151-101615-
/O.CON.KCLE.SV.W.0066.000000T0000Z-210810T1615Z/
Stark OH-
1158 AM EDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT
FOR SOUTHEASTERN STARK COUNTY...

At 1158 AM EDT, a severe thunderstorm was located over Waynesburg, or
10 miles northwest of Carrollton, moving east at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Minerva, Waynesburg, East Sparta and Robertsville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4065 8138 4076 8132 4078 8109 4073 8109
      4072 8124 4065 8124
TIME...MOT...LOC 1558Z 270DEG 23KT 4068 8124 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Jaszka
841 
WWUS51 KCLE 101606
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
1206 PM EDT Tue Aug 10 2021

OHC151-101615-
/O.EXP.KCLE.SV.W.0066.000000T0000Z-210810T1615Z/
Stark OH-
1206 PM EDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STARK COUNTY WILL
EXPIRE AT 1215 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty 
winds, heavy rain, and frequent lightning are expected with 
additional thunderstorms.

LAT...LON 4065 8138 4076 8132 4078 8109 4073 8109
      4072 8124 4065 8124
TIME...MOT...LOC 1605Z 262DEG 27KT 4068 8121 

$$

Jaszka

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 3:38 AM EDTSpecial Weather StatementCLEMedina, Summit37 min
Aug 10, 5:58 AM EDTSpecial Weather StatementCLEErie, Sandusky47 min
Aug 10, 6:41 AM EDTSpecial Weather StatementCLEErie49 min
Aug 10, 6:54 AM EDTAreal Flood AdvisoryCLEGeauga, Lake3 hr
Aug 10, 7:09 AM EDTSpecial Weather StatementCLECrawford, Marion51 min
Aug 10, 8:23 AM EDTSpecial Weather StatementCLEAshland37 min
Aug 10, 8:44 AM EDTSpecial Weather StatementCLEKnox46 min
Aug 10, 8:49 AM EDTSpecial Weather StatementCLEMahoning, Portage, Stark, Summit41 min
Aug 10, 9:08 AM EDTSevere Thunderstorm WarningCLEHolmes, Knox52 min
Aug 10, 9:26 AM EDTSpecial Weather StatementCLEMahoning49 min
Aug 10, 11:04 AM EDTSpecial Weather StatementCLEStark41 min
Aug 10, 11:06 AM EDTSpecial Weather StatementCLEHolmes54 min
Aug 10, 11:32 AM EDTSevere Thunderstorm WarningCLEHolmes28 min
Aug 10, 1:03 PM EDTHeat AdvisoryCLEErie, Hancock, Huron, Lucas, Ottawa, Sandusky and 3 more7 hr
Aug 10, 3:38 PM EDTSpecial Weather StatementCLERichland37 min
Aug 10, 4:48 PM EDTSpecial Weather StatementCLEStark42 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.