Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 245, NWS Cleveland, OH

August 9, 20114 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 9, 2011, 8:23 PM EDT for 4 counties in Ohio. It was in force for 67 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
Aug 9, 2011, 8:23 PM EDT (00:23 UTC)
Expired
Aug 9, 2011, 9:30 PM EDT
In force
67 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Ashland County, OH, Medina County, OH, Summit County, OH, Wayne County, OH

The radar

The Cleveland radar (KCLE), 58 km from the middle of the area, began a volume at 00:26 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
Aug 9, 8:25 PM EDTHAIL 1Rittman, OHTRAINED SPOTTERS REPORTED QUARTER SIZE HAIL.
Aug 9, 8:27 PM EDTHAIL 1.75Savannah, OHQUARTER TO GOLF BALL
Aug 9, 8:30 PM EDTHAIL 1.75Savannah, OH

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.

IssuedProductOfficeLasted
Aug 9, 6:56 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 0.4 hours before the alert went out and 166 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 2011-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 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 00:00Z on 2011-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
35 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1535 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

884 
WUUS51 KCLE 100023
SVRCLE
OHC005-103-153-169-100130-
/O.NEW.KCLE.SV.W.0245.110810T0023Z-110810T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
823 PM EDT TUE AUG 9 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ASHLAND COUNTY IN NORTH CENTRAL OHIO
  SOUTHERN MEDINA COUNTY IN NORTHEAST OHIO
  SOUTHERN SUMMIT COUNTY IN NORTHEAST OHIO
  WAYNE COUNTY IN NORTHEAST OHIO

* UNTIL 930 PM EDT

* AT 817 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  POLK...AND MOVING SOUTHEAST AT 25 MPH.
   
  ADDITIONAL THUNDERSTORMS OVER SOUTHERN MEDINA COUNTY MAY           
  ALSO BECOME SEVERE AS THEY MOVE INTO SOUTHERN SUMMIT AND WAYNE     
  COUNTIES.

* LOCATIONS IMPACTED INCLUDE...
  WOOSTER...
  RITTMAN...
  AKRON...
  WEST SALEM...
  HAYESVILLE...
  LODI...
  CRESTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE NOW AND STAY AWAY FROM
WINDOWS.

&&

PLEASE REPORT HAIL AND STRONG WINDS TO THE NATIONAL WEATHER SERVICE
BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 4069 8232 4073 8234 4073 8238 4080 8239
      4081 8242 4099 8241 4104 8218 4105 8206
      4114 8169 4114 8139 4099 8139 4099 8142
      4091 8142 4092 8165 4067 8165
TIME...MOT...LOC 0022Z 302DEG 22KT 4094 8225

$$

MULLEN
1 follow-up statement
090 
WWUS51 KCLE 100043
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
843 PM EDT TUE AUG 9 2011

OHC005-103-153-169-100130-
/O.CON.KCLE.SV.W.0245.000000T0000Z-110810T0130Z/
ASHLAND OH-MEDINA OH-SUMMIT OH-WAYNE OH-
843 PM EDT TUE AUG 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR WAYNE...SOUTHERN SUMMIT...SOUTHERN MEDINA AND ASHLAND COUNTIES...

AT 825 PM EDT...TRAINED WEATHER SPOTTERS IN RITTMAN REPORTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS 
STORM WAS LOCATED NEAR CONGRESS...OR 10 MILES EAST OF 
ASHLAND...MOVING SOUTHEAST AT 25 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
WOOSTER...SMITHVILLE...APPLE CREEK...ORRVILLE...MOUNT EATON AND
DALTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
TUESDAY EVENING FOR NORTHWESTERN OHIO. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL MIDNIGHT EDT WEDNESDAY MORNING FOR
NORTHEASTERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4069 8232 4073 8234 4073 8238 4080 8239
      4081 8242 4099 8241 4104 8218 4105 8206
      4114 8169 4114 8139 4099 8139 4099 8142
      4091 8142 4092 8165 4067 8165
TIME...MOT...LOC 0043Z 302DEG 22KT 4087 8211

$$

SCHULER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:13 PM EDTSevere Thunderstorm WarningCLECuyahoga, Geauga, Portage, Summit47 min
Aug 9, 8:45 PM EDTSevere Thunderstorm WarningCLEStark75 min
Aug 9, 9:12 PM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Trumbull63 min
Aug 10, 3:40 AM EDTCoastal Flood StatementCLEAshtabula, Lake16 hr
Aug 10, 8:07 AM EDTSpecial Marine WarningCLE38 min
Aug 10, 8:47 AM EDTSpecial Marine WarningCLE118 min
Aug 10, 10:44 AM EDTSpecial Marine WarningCLE2 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011Every severe thunderstorm warning in 2011

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.