Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 252, NWS Cleveland, OH

August 18, 2011Cuyahoga County, Geauga County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 18, 2011, 8:53 PM EDT for Cuyahoga County, Geauga County, Ohio. It was in force for 67 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 18, 2011, 8:53 PM EDT (00:53 UTC)
Expired
Aug 18, 2011, 10:00 PM EDT
In force
67 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Cuyahoga County, OH, Geauga County, OH

The radar

The Cleveland radar (KCLE), 33 km from the middle of the area, began a volume at 00:53 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 18, 8:56 PM EDTHAIL 0.75Cleveland, OHMEDIA REPORTED PEA TO PENNY SIZE HAIL DOWNTOWN CLEVELAND.

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, 0.9 hours before the alert went out and 167 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 2011-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 201 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 2011-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939Sfc1 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
201 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1889 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

350 
WUUS51 KCLE 190053
SVRCLE
OHC035-055-190200-
/O.NEW.KCLE.SV.W.0252.110819T0053Z-110819T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
853 PM EDT THU AUG 18 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CUYAHOGA COUNTY IN NORTHEAST OHIO
  SOUTHWESTERN GEAUGA COUNTY IN NORTHEAST OHIO

* UNTIL 1000 PM EDT

* AT 848 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
  CLEVELAND...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SOLON...
  SOUTH RUSSELL...
  CHESTERLAND...

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 4162 8149 4157 8148 4157 8130 4159 8130
      4157 8116 4135 8115 4135 8159 4134 8159
      4133 8160 4134 8174 4150 8173 4156 8160
      4162 8153
TIME...MOT...LOC 0053Z 279DEG 30KT 4149 8157

$$

KUBINA
2 follow-up statements
140 
WWUS51 KCLE 190126
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
926 PM EDT THU AUG 18 2011

OHC035-190136-
/O.CAN.KCLE.SV.W.0252.000000T0000Z-110819T0200Z/
CUYAHOGA OH-
926 PM EDT THU AUG 18 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CUYAHOGA COUNTY IS
CANCELLED...

LAT...LON 4157 8116 4135 8115 4135 8139 4142 8139
      4143 8138 4144 8138 4145 8139 4157 8139
      4157 8130 4159 8130
TIME...MOT...LOC 0126Z 289DEG 18KT 4146 8130

$$

OHC055-190200-
/O.CON.KCLE.SV.W.0252.000000T0000Z-110819T0200Z/
GEAUGA OH-
926 PM EDT THU AUG 18 2011

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

AT 921 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL. THIS STORM WAS LOCATED NEAR SOUTH RUSSELL...OR 10 MILES 
SOUTHWEST OF CHARDON...MOVING EAST AT 20 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...AQUILLA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4157 8116 4135 8115 4135 8139 4142 8139
      4143 8138 4144 8138 4145 8139 4157 8139
      4157 8130 4159 8130
TIME...MOT...LOC 0126Z 289DEG 18KT 4146 8130

$$

SCHULER
836 
WWUS51 KCLE 190154
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
954 PM EDT THU AUG 18 2011

OHC055-190204-
/O.EXP.KCLE.SV.W.0252.000000T0000Z-110819T0200Z/
GEAUGA OH-
954 PM EDT THU AUG 18 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN GEAUGA COUNTY
EXPIRES AT 1000 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE...HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH
THIS THUNDERSTORM.

LAT...LON 4157 8116 4135 8115 4135 8139 4142 8139
      4143 8138 4144 8138 4145 8139 4157 8139
      4157 8130 4159 8130
TIME...MOT...LOC 0154Z 289DEG 18KT 4141 8112

$$

SCHULER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 8:06 PM EDTSpecial Marine WarningCLE114 min
Aug 18, 9:10 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake65 min
Aug 19, 3:58 AM EDTSevere Thunderstorm WarningCLEGeauga, Portage, Summit62 min
Aug 19, 4:43 AM EDTFlash Flood WarningCLEGeauga107 min
Aug 19, 5:00 AM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Portage, Trumbull60 min
Aug 19, 5:57 AM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Trumbull63 min
Aug 19, 2:30 PM EDTFlash Flood WarningCLEKnox87 min

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.