Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 119, NWS Cleveland, OH

December 11, 20214 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Dec 11, 2021, 6:12 AM EST for 4 counties in Ohio. It was in force for 48 min. 3 reports 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
Dec 11, 2021, 6:12 AM EST (11:12 UTC)
Expired
Dec 11, 2021, 7:00 AM EST
In force
48 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, Summit County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 63 km from the middle of the area, began a volume at 11:12 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

TimeReportWhereRemark
Dec 11, 6:31 AM ESTTSTM WND DMG2 Nw Kent, OHTREE DOWN NEAR ROAD.
Dec 11, 6:36 AM ESTTSTM WND DMG5 Ene Limaville, OHTREE DOWN ON ROAD.
Dec 11, 6:42 AM ESTTSTM WND DMGCortland, OHTREE DOWN. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 11.2 hours before the alert went out and 127 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 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

850 
WUUS51 KCLE 111112
SVRCLE
OHC099-133-153-155-111200-
/O.NEW.KCLE.SV.W.0119.211211T1112Z-211211T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
612 AM EST Sat Dec 11 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Portage County in northeastern Ohio...
  Southwestern Trumbull County in northeastern Ohio...
  Northwestern Mahoning County in northeastern Ohio...
  Northeastern Summit County in northeastern Ohio...

* Until 700 AM EST.

* At 611 AM EST, a severe thunderstorm was located over Ravenna,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Akron, Youngstown, Warren, Ravenna, Cuyahoga Falls, Boardman, Kent,
  Hudson, Niles, Twinsburg, Tallmadge, Streetsboro, Macedonia,
  Canfield, Cortland, Newton Falls, Mogadore, Lordstown,
  Garrettsville and Mantua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 8155 4132 8152 4135 8120 4135 8101
      4137 8100 4139 8072 4098 8066
TIME...MOT...LOC 1111Z 263DEG 33KT 4120 8125 

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

$$

Jaszka
2 follow-up statements
028 
WWUS51 KCLE 111126
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
626 AM EST Sat Dec 11 2021

OHC099-133-153-155-111200-
/O.CON.KCLE.SV.W.0119.000000T0000Z-211211T1200Z/
Portage OH-Trumbull OH-Mahoning OH-Summit OH-
626 AM EST Sat Dec 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM EST
FOR PORTAGE...SOUTHWESTERN TRUMBULL...NORTHWESTERN MAHONING AND EAST
CENTRAL SUMMIT COUNTIES...

At 626 AM EST, severe thunderstorms were located along a line
extending from Bristolville to near Ravenna to near Mogadore, moving
east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Akron, Youngstown, Warren, Ravenna, Cuyahoga Falls, Boardman, Kent,
Hudson, Niles, Tallmadge, Streetsboro, Canfield, Cortland, Newton
Falls, Mogadore, Lordstown, Garrettsville, Mantua, Leavittsburg and
Hilltop.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4103 8153 4103 8154 4117 8153 4125 8130
      4135 8113 4135 8101 4137 8100 4139 8072
      4098 8066
TIME...MOT...LOC 1126Z 259DEG 32KT 4136 8090 4119 8116 4106 8144 

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

$$

Jaszka
406 
WWUS51 KCLE 111149
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
649 AM EST Sat Dec 11 2021

OHC153-111159-
/O.CAN.KCLE.SV.W.0119.000000T0000Z-211211T1200Z/
Summit OH-
649 AM EST Sat Dec 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SUMMIT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4098 8066 4103 8137 4118 8134 4126 8106
      4127 8070
TIME...MOT...LOC 1149Z 260DEG 30KT 4123 8094 4115 8114 4106 8130 

$$

OHC099-133-155-111200-
/O.CON.KCLE.SV.W.0119.000000T0000Z-211211T1200Z/
Portage OH-Trumbull OH-Mahoning OH-
649 AM EST Sat Dec 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM EST
FOR SOUTHERN PORTAGE...SOUTHWESTERN TRUMBULL AND NORTHWESTERN
MAHONING COUNTIES...

At 649 AM EST, severe thunderstorms were located along a line
extending from near Newton Falls to near Ravenna to near Mogadore,
moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Youngstown, Warren, Ravenna, Boardman, Kent, Niles, Canfield, Newton
Falls, Lordstown, Hilltop, Leavittsburg, Austintown, Brimfield,
Girard, Randolph, McDonald, Atwater, Edinburg, Ellsworth and Windham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4098 8066 4103 8137 4118 8134 4126 8106
      4127 8070
TIME...MOT...LOC 1149Z 260DEG 30KT 4123 8094 4115 8114 4106 8130 

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
Dec 11, 2:34 AM ESTSpecial Weather StatementCLELucas, Wood56 min
Dec 11, 5:26 AM ESTSpecial Weather StatementCLECuyahoga, Geauga, Lake, Medina, Portage, Summit49 min
Dec 11, 5:48 AM ESTSpecial Weather StatementCLEAshland, Morrow, Richland42 min
Dec 11, 6:01 AM ESTSpecial Weather StatementCLETrumbull59 min
Dec 11, 6:39 AM ESTSevere Thunderstorm WarningCLEPortage, Trumbull36 min
Dec 11, 8:38 AM ESTWind AdvisoryCLEKnox, Medina10 hr
Dec 11, 11:42 AM ESTAreal Flood AdvisoryCLEAshland, Medina, Portage, Richland, Summit, Wayne4 hr
Dec 11, 12:22 PM ESTSpecial Weather StatementCLEMahoning, Portage, Stark53 min
Dec 11, 12:32 PM ESTSpecial Weather StatementCLETrumbull58 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.