Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 94, NWS Cleveland, OH

August 12, 2021Mahoning County, Portage County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 12, 2021, 4:52 PM EDT for Mahoning County, Portage County, Ohio. It was in force for 68 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: Aug 12, 2021, 4:52 PM EDT (20:52 UTC)
Expired: Aug 12, 2021, 6:00 PM EDT
In force: 68 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Mahoning County, OH, Portage County, OH

The radar

The Pittsburgh radar (KPBZ), 80 km from the middle of the area, began a volume at 20:52 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
Aug 12, 5:36 PM EDT	TSTM WND DMG	2 Ne Boardman, OH	PER SCANNER, TREE DOWN ON HOUSE ON EUCLID BLVD. IN BOARDMAN. TIME ESTIMATED VIA 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
Aug 12, 3:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.9 hours before the alert went out and 97 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: 1075 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 890 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted.

892 
WUUS51 KCLE 122052
SVRCLE
OHC099-133-122200-
/O.NEW.KCLE.SV.W.0094.210812T2052Z-210812T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
452 PM EDT Thu Aug 12 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Southern Portage County in northeastern Ohio...
  Mahoning County in northeastern Ohio...

* Until 600 PM EDT.

* At 452 PM EDT, a severe thunderstorm was located near Ravenna,
  moving east at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Youngstown, Ravenna, Boardman, Campbell, Canfield, Sebring,
  Austintown, Struthers, Brimfield, Randolph, Atwater, Edinburg,
  Poland, Ellsworth, New Middletown, Craig Beach, Lowellville,
  Deerfield, North Jackson and Berlin Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4093 8052 4093 8109 4099 8109 4100 8139
      4115 8131 4113 8090 4113 8052
TIME...MOT...LOC 2052Z 271DEG 19KT 4108 8122 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Kahn

3 follow-up statements

006 
WWUS51 KCLE 122108
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
508 PM EDT Thu Aug 12 2021

OHC133-122118-
/O.CAN.KCLE.SV.W.0094.000000T0000Z-210812T2200Z/
Portage OH-
508 PM EDT Thu Aug 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN PORTAGE COUNTY 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 Ohio.

LAT...LON 4093 8100 4113 8100 4113 8052 4093 8052
TIME...MOT...LOC 2108Z 271DEG 19KT 4108 8110 

$$

OHC099-122200-
/O.CON.KCLE.SV.W.0094.000000T0000Z-210812T2200Z/
Mahoning OH-
508 PM EDT Thu Aug 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR MAHONING COUNTY...

At 508 PM EDT, a severe thunderstorm was located 9 miles southeast of
Ravenna, moving east at 20 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Youngstown, Boardman, Campbell, Canfield, Austintown, Struthers,
Poland, Ellsworth, New Middletown, Craig Beach, Lowellville, North
Jackson, Berlin Center, Greenford and Mineral Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4093 8100 4113 8100 4113 8052 4093 8052
TIME...MOT...LOC 2108Z 271DEG 19KT 4108 8110 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Kahn

826 
WWUS51 KCLE 122136
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
536 PM EDT Thu Aug 12 2021

OHC099-122200-
/O.CON.KCLE.SV.W.0094.000000T0000Z-210812T2200Z/
Mahoning OH-
536 PM EDT Thu Aug 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR MAHONING COUNTY...

At 536 PM EDT, a severe thunderstorm was located near Youngstown,
moving east at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Youngstown, Boardman, Campbell, Canfield, Austintown, Struthers,
Poland, Ellsworth, New Middletown, Lowellville, North Jackson,
Greenford and Mineral Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4093 8091 4113 8090 4113 8052 4093 8052
TIME...MOT...LOC 2136Z 270DEG 27KT 4108 8070 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Campbell

640 
WWUS51 KCLE 122158
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
558 PM EDT Thu Aug 12 2021

OHC099-122208-
/O.EXP.KCLE.SV.W.0094.000000T0000Z-210812T2200Z/
Mahoning OH-
558 PM EDT Thu Aug 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR MAHONING COUNTY WILL EXPIRE AT
600 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

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

LAT...LON 4093 8091 4113 8090 4113 8052 4093 8052
TIME...MOT...LOC 2158Z 271DEG 19KT 4108 8056 

$$

Campbell

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 4:14 AM EDT	Heat Advisory	CLE	Ashland, Crawford, Cuyahoga, Erie, Hancock, Holmes and 19 more	15 hr
Aug 12, 4:56 AM EDT	Special Marine Warning	CLE		64 min
Aug 12, 5:12 AM EDT	Special Marine Warning	CLE		33 min
Aug 12, 7:33 AM EDT	Special Marine Warning	CLE		87 min
Aug 12, 8:21 AM EDT	Special Weather Statement	CLE	Medina	39 min
Aug 12, 8:59 AM EDT	Special Marine Warning	CLE		71 min
Aug 12, 9:03 AM EDT	Special Weather Statement	CLE	Ashtabula, Lake	42 min
Aug 12, 10:15 AM EDT	Special Weather Statement	CLE	Cuyahoga, Geauga, Portage	45 min
Aug 12, 10:23 AM EDT	Areal Flood Advisory	CLE	Cuyahoga	2 hr
Aug 12, 10:28 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Cuyahoga, Geauga, Portage, Summit, Trumbull	47 min
Aug 12, 11:01 AM EDT	Severe Thunderstorm Warning Considerable damage threat	CLE	Ashtabula, Trumbull	40 min
Aug 12, 3:29 PM EDT	Special Weather Statement	CLE	Portage, Trumbull	46 min
Aug 12, 3:37 PM EDT	Special Weather Statement	CLE	Geauga	53 min
Aug 12, 3:42 PM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit	48 min
Aug 12, 3:54 PM EDT	Special Weather Statement	CLE	Mahoning	51 min
Aug 12, 4:00 PM EDT	Special Weather Statement	CLE	Summit	45 min
Aug 12, 4:09 PM EDT	Severe Thunderstorm Warning	CLE	Portage, Summit	51 min
Aug 12, 4:27 PM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit, Trumbull	63 min
Aug 12, 6:11 PM EDT	Special Weather Statement	CLE	Morrow, Richland	64 min

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.