Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 109, NWS Cleveland, OH

September 22, 20214 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 22, 2021, 2:59 PM EDT for 4 counties in Ohio. It was in force for 61 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
Sep 22, 2021, 2:59 PM EDT (18:59 UTC)
Expired
Sep 22, 2021, 4:00 PM EDT
In force
61 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Mahoning County, OH, Portage County, OH, Stark County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 80 km from the middle of the area, began a volume at 19:01 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 22, 2:23 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.0 hours before the alert went out and 106 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 2021-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 155 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 2021-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
155 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

453 
WUUS51 KCLE 221859
SVRCLE
OHC099-133-151-155-222000-
/O.NEW.KCLE.SV.W.0109.210922T1859Z-210922T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
259 PM EDT Wed Sep 22 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Eastern Portage County in northeastern Ohio...
  Southwestern Trumbull County in northeastern Ohio...
  Western Mahoning County in northeastern Ohio...
  Northeastern Stark County in northeastern Ohio...

* Until 400 PM EDT.

* At 259 PM EDT, a severe thunderstorm was located over Louisville,
  or 8 miles northeast of Canton, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Canton, Youngstown, Warren, Alliance, Niles, North Canton,
  Louisville, Newton Falls, Sebring, Lordstown, Hartville, Hilltop,
  Leavittsburg, Austintown, Girard, Randolph, McDonald, Atwater,
  Edinburg and Ellsworth.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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

&&

LAT...LON 4087 8145 4135 8101 4116 8063 4090 8102
      4090 8108 4086 8109 4075 8125
TIME...MOT...LOC 1859Z 215DEG 29KT 4086 8123 

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

$$

Jaszka
4 follow-up statements
968 
WWUS51 KCLE 221917
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
317 PM EDT Wed Sep 22 2021

OHC099-133-151-155-222000-
/O.CON.KCLE.SV.W.0109.000000T0000Z-210922T2000Z/
Portage OH-Trumbull OH-Mahoning OH-Stark OH-
317 PM EDT Wed Sep 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR EASTERN PORTAGE...SOUTHWESTERN TRUMBULL...NORTHWESTERN MAHONING
AND NORTHEASTERN STARK COUNTIES...

At 317 PM EDT, a severe thunderstorm was located near Alliance, or 13
miles southeast of Ravenna, moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Youngstown, Warren, Alliance, Niles, Newton Falls, Lordstown,
Hilltop, Leavittsburg, Austintown, Girard, Randolph, McDonald,
Atwater, Edinburg, Ellsworth, Windham, Craig Beach, Deerfield,
Limaville and North Jackson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4090 8113 4098 8128 4106 8128 4135 8101
      4116 8063 4104 8081
TIME...MOT...LOC 1917Z 212DEG 25KT 4099 8112 

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

$$

Jaszka
067 
WWUS51 KCLE 221925
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
325 PM EDT Wed Sep 22 2021

OHC151-221934-
/O.CAN.KCLE.SV.W.0109.000000T0000Z-210922T2000Z/
Stark OH-
325 PM EDT Wed Sep 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STARK COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4107 8127 4135 8102 4135 8101 4116 8063
      4095 8102
TIME...MOT...LOC 1924Z 212DEG 27KT 4104 8109 

$$

OHC099-133-155-222000-
/O.CON.KCLE.SV.W.0109.000000T0000Z-210922T2000Z/
Portage OH-Trumbull OH-Mahoning OH-
325 PM EDT Wed Sep 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR EASTERN PORTAGE...SOUTHWESTERN TRUMBULL AND NORTHWESTERN MAHONING
COUNTIES...

At 324 PM EDT, a severe thunderstorm was located 9 miles north of
Sebring, or 11 miles southeast of Ravenna, moving northeast at 30
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Youngstown, Warren, Niles, Newton Falls, Lordstown, Garrettsville,
Hilltop, Leavittsburg, Austintown, Girard, McDonald, Atwater,
Edinburg, Windham, Craig Beach, Deerfield, North Jackson, Wayland,
South Canal and Churchill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4107 8127 4135 8102 4135 8101 4116 8063
      4095 8102
TIME...MOT...LOC 1924Z 212DEG 27KT 4104 8109 

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

$$

Jaszka
856 
WWUS51 KCLE 221941
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
341 PM EDT Wed Sep 22 2021

OHC099-133-155-222000-
/O.CON.KCLE.SV.W.0109.000000T0000Z-210922T2000Z/
Portage OH-Trumbull OH-Mahoning OH-
341 PM EDT Wed Sep 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR EASTERN PORTAGE...SOUTHWESTERN TRUMBULL AND NORTHWESTERN MAHONING
COUNTIES...

At 340 PM EDT, a severe thunderstorm was located near Newton Falls,
or 11 miles southwest of Warren, moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Warren, Niles, Newton Falls, Lordstown, Garrettsville, Leavittsburg,
Windham, Craig Beach, Wayland, South Canal, Bolindale and Turnpike
Interchange.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4103 8106 4116 8119 4135 8102 4135 8101
      4120 8071
TIME...MOT...LOC 1940Z 214DEG 27KT 4115 8100 

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

$$

Jaszka
888 
WWUS51 KCLE 221949
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
349 PM EDT Wed Sep 22 2021

OHC099-221958-
/O.CAN.KCLE.SV.W.0109.000000T0000Z-210922T2000Z/
Mahoning OH-
349 PM EDT Wed Sep 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MAHONING COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4113 8089 4113 8099 4110 8100 4120 8116
      4135 8102 4135 8101 4120 8072
TIME...MOT...LOC 1948Z 210DEG 25KT 4120 8096 

$$

OHC133-155-222000-
/O.CON.KCLE.SV.W.0109.000000T0000Z-210922T2000Z/
Portage OH-Trumbull OH-
349 PM EDT Wed Sep 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHEASTERN PORTAGE AND SOUTHWESTERN TRUMBULL COUNTIES...

At 348 PM EDT, a severe thunderstorm was located over Newton Falls,
or 7 miles west of Warren, moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Warren, Niles, Newton Falls, Lordstown, Garrettsville, Leavittsburg,
Windham, Craig Beach, Wayland, South Canal, Bolindale and Turnpike
Interchange.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4113 8089 4113 8099 4110 8100 4120 8116
      4135 8102 4135 8101 4120 8072
TIME...MOT...LOC 1948Z 210DEG 25KT 4120 8096 

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

$$

Jaszka

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 2:09 PM EDTSevere Thunderstorm WarningCLEPortage, Stark, Summit66 min
Sep 22, 2:57 PM EDTAreal Flood AdvisoryCLECuyahoga, Summit3 hr
Sep 22, 3:10 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Portage, Trumbull65 min
Sep 22, 3:58 PM EDTSevere Thunderstorm WarningCLEAshtabula, Trumbull47 min
Sep 22, 4:17 PM EDTTornado WarningCLEAshtabula28 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.