Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 246, NWS Cleveland, OH

August 9, 2011Stark County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 9, 2011, 8:45 PM EDT for Stark County, Ohio. It was in force for 75 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 9, 2011, 8:45 PM EDT (00:45 UTC)
Expired
Aug 9, 2011, 10:00 PM EDT
In force
75 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Stark County, OH

The radar

The Cleveland radar (KCLE), 79 km from the middle of the area, began a volume at 00:45 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, 9:44 PM EDTHAIL 0.88Brewster, 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, 0.8 hours before the alert went out and 119 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.

198 
WUUS51 KCLE 100045
SVRCLE
OHC151-100200-
/O.NEW.KCLE.SV.W.0246.110810T0045Z-110810T0200Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  STARK COUNTY IN NORTHEAST OHIO

* UNTIL 1000 PM EDT

* AT 840 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 13 MILES WEST OF HARTVILLE TO
  10 MILES NORTHWEST OF MASSILLON TO 13 MILES NORTHWEST OF 
  BREWSTER...AND MOVING SOUTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CANTON...
  NORTH CANTON...
  MASSILLON...
  HARTVILLE...
  WILMOT...
  NAVARRE...
  LOUISVILLE...
  BREWSTER...
  ALLIANCE...
  WAYNESBURG...
  EAST SPARTA...
  MINERVA...

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 4092 8164 4091 8143 4099 8142 4099 8139
      4099 8109 4072 8110 4072 8123 4064 8124
      4065 8144 4066 8146 4064 8154 4065 8156
      4064 8165
TIME...MOT...LOC 0044Z 298DEG 33KT 4101 8152 4089 8159
          4084 8172 4084 8187

$$

MULLEN
1 follow-up statement
059 
WWUS51 KCLE 100143
SVSCLE

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

OHC151-100200-
/O.CON.KCLE.SV.W.0246.000000T0000Z-110810T0200Z/
STARK OH-
943 PM EDT TUE AUG 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR STARK COUNTY...

AT 940 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR WILMOT...OR 13 MILES NORTHWEST OF DOVER...MOVING EAST AT 40 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...EAST
SPARTA...MAGNOLIA AND WAYNESBURG.

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 4089 8163 4088 8144 4088 8133 4088 8110
      4072 8110 4072 8123 4064 8124 4065 8144
      4066 8146 4064 8154 4065 8156 4064 8165
TIME...MOT...LOC 0144Z 279DEG 33KT 4067 8158

$$

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, 8:23 PM EDTSevere Thunderstorm WarningCLEAshland, Medina, Summit, Wayne67 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.