Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 266, NWS Cleveland, OH

August 24, 2011Ashtabula County, Geauga County, Lake County, Ohio; Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 24, 2011, 11:30 PM EDT for Ashtabula County, Geauga County, Lake County, Ohio; Erie County, Pennsylvania. It was in force for 75 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 24, 2011, 11:30 PM EDT (03:30 UTC)
Expired: Aug 25, 2011, 12:45 AM EDT
In force: 75 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Ashtabula County, OH, Geauga County, OH, Lake County, OH, Erie County, PA

The radar

The Cleveland radar (KCLE), 133 km from the middle of the area, began a volume at 03:30 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

Time	Report	Where	Remark
Aug 25, 12:25 AM EDT	TSTM WND DMG	Lake City, PA	ONE LIMB DOWN.
Aug 25, 12:45 AM EDT	HAIL 1	Geneva, OH
Aug 25, 12:50 AM EDT	TSTM WND DMG	Corry, PA	LARGE LIMB DOWN.

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.

Issued	Product	Office	Lasted
Aug 24, 9:18 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 24, 10:27 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 3.5 hours before the alert went out and 169 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1205 J/kg
Mixed-layer CIN: -258 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

058 
WUUS51 KCLE 250330
SVRCLE
OHC007-055-085-PAC049-250445-
/O.NEW.KCLE.SV.W.0266.110825T0330Z-110825T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1130 PM EDT WED AUG 24 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ASHTABULA COUNTY IN NORTHEAST OHIO
  NORTHERN GEAUGA COUNTY IN NORTHEAST OHIO
  LAKE COUNTY IN NORTHEAST OHIO
  ERIE COUNTY IN NORTHWEST PENNSYLVANIA

* UNTIL 1245 AM EDT

* AT 1121 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE GOLF
  BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 75 MPH.  THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 21 MILES NORTH OF
  NORTH EAST TO 30 MILES WEST OF EASTLAKE...AND MOVING EAST AT 50
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  PAINESVILLE...
  CHARDON...
  ERIE...
  ASHTABULA...
  JEFFERSON...
  WILLOUGHBY...
  EASTLAKE...
  MENTOR...
  NORTH EAST...
  PERRY...
  NORTH KINGSVILLE...
  MADISON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

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 4228 7978 4216 8006 4218 8007 4217 8013
      4210 8019 4204 8036 4177 8129 4165 8149
      4157 8149 4157 8139 4153 8139 4151 8056
      4152 8052 4185 8051 4185 7961 4199 7960
      4201 7975 4227 7975
TIME...MOT...LOC 0328Z 270DEG 43KT 4251 7975 4174 8183

$$

LAPLANTE

2 follow-up statements

782 
WWUS51 KCLE 250346
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1146 PM EDT WED AUG 24 2011

OHC007-055-085-PAC049-250445-
/O.CON.KCLE.SV.W.0266.000000T0000Z-110825T0445Z/
GEAUGA OH-LAKE OH-ASHTABULA OH-ERIE PA-
1146 PM EDT WED AUG 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR ASHTABULA...LAKE AND NORTHERN GEAUGA COUNTIES IN NORTHEAST
OHIO...AND ERIE COUNTY IN NORTHWEST PENNSYLVANIA...

AT 1144 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE GOLF BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF
75 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 28
MILES NORTHEAST OF NORTH EAST TO TIMBERLAKE...MOVING EAST AT 50 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...KIRTLAND
HILLS...KIRTLAND...NORTH EAST...ERIE...CHARDON...GIRARD...GENEVA...
CONNEAUT...AQUILLA AND ALBION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM EDT THURSDAY MORNING
FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4228 7978 4216 8006 4218 8007 4217 8013
      4210 8019 4204 8036 4177 8129 4165 8149
      4157 8149 4157 8139 4153 8139 4151 8056
      4152 8052 4185 8051 4185 7961 4199 7960
      4201 7975 4227 7975
TIME...MOT...LOC 0346Z 280DEG 45KT 4246 7937 4171 8145

$$

SCHULER

068 
WWUS51 KCLE 250420
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1220 AM EDT THU AUG 25 2011

OHC007-055-085-PAC049-250445-
/O.CON.KCLE.SV.W.0266.000000T0000Z-110825T0445Z/
GEAUGA OH-LAKE OH-ASHTABULA OH-ERIE PA-
1220 AM EDT THU AUG 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR ASHTABULA...LAKE AND NORTHERN GEAUGA COUNTIES IN NORTHEAST
OHIO...AND ERIE COUNTY IN NORTHWEST PENNSYLVANIA...

AT 1216 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE GOLF BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF
75 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 50
MILES NORTHEAST OF CORRY TO ROCK CREEK...MOVING EAST AT 50 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
WATERFORD...EDINBORO...ROAMING SHORES...UNION CITY...CORRY AND
ANDOVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM EDT THURSDAY MORNING
FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4228 7978 4216 8006 4218 8007 4217 8013
      4210 8019 4204 8036 4177 8129 4165 8149
      4157 8149 4157 8139 4153 8139 4151 8056
      4152 8052 4185 8051 4185 7961 4199 7960
      4201 7975 4227 7975
TIME...MOT...LOC 0420Z 280DEG 45KT 4237 7880 4164 8089

$$

SCHULER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 9:52 PM EDT	Special Marine Warning	CLE		113 min
Aug 24, 10:11 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Wood	64 min
Aug 24, 11:04 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky	41 min
Aug 24, 11:07 PM EDT	Severe Thunderstorm Warning	CLE	Hancock	53 min
Aug 24, 11:13 PM EDT	Areal Flood Advisory	CLE	Hancock, Lucas, Sandusky, Seneca, Wood	3 hr
Aug 24, 11:14 PM EDT	Severe Thunderstorm Warning	CLE	Seneca, Wood	61 min
Aug 24, 11:27 PM EDT	Special Marine Warning	CLE		2 hr
Aug 24, 11:31 PM EDT	Severe Thunderstorm Warning	CLE	Wyandot	44 min
Aug 24, 11:35 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron	40 min
Aug 24, 11:49 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Lorain, Medina	71 min
Aug 24, 11:53 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Marion	42 min
Aug 25, 12:01 AM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	59 min
Aug 25, 12:26 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit, Wayne	79 min
Aug 25, 12:32 AM EDT	Areal Flood Advisory	CLE	Ashtabula, Geauga, Lake	3 hr
Aug 25, 12:41 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Lake	79 min
Aug 25, 1:09 AM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Trumbull	66 min
Aug 25, 1:12 AM EDT	Severe Thunderstorm Warning	CLE	Stark	48 min
Aug 25, 1:27 AM EDT	Tornado Warning	CLE	Trumbull	25 min
Aug 25, 1:31 AM EDT	Areal Flood Warning	CLE	Ashtabula	3 hr
Aug 25, 1:36 AM EDT	Areal Flood Advisory	CLE	Mahoning, Trumbull	3 hr
Aug 25, 1:35 AM EDT	Areal Flood Advisory	CLE	Crawford	3 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Severe Thunderstorm Warnings in Pennsylvania, 2011 Every 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.