Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 243, NWS Cleveland, OH

August 9, 20115 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 9, 2011, 7:44 PM EDT for 5 counties in Ohio. It was in force for 46 min. 2 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, 7:44 PM EDT (23:44 UTC)
Expired: Aug 9, 2011, 8:30 PM EDT
In force: 46 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Ashland County, OH, Crawford County, OH, Huron County, OH, Richland County, OH, Seneca County, OH

The radar

The Cleveland radar (KCLE), 75 km from the middle of the area, began a volume at 23:45 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

Time	Report	Where	Remark
Aug 9, 8:27 PM EDT	HAIL 1.75	Savannah, OH	QUARTER TO GOLF BALL
Aug 9, 8:30 PM EDT	HAIL 1.75	Savannah, 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.

Issued	Product	Office	Lasted
Aug 9, 3:28 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 9, 6:56 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.7 hours before the alert went out and 197 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: 22 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 76 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.

798 
WUUS51 KCLE 092344
SVRCLE
OHC005-033-077-139-147-100030-
/O.NEW.KCLE.SV.W.0243.110809T2344Z-110810T0030Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ASHLAND COUNTY IN NORTH CENTRAL OHIO
  NORTHERN CRAWFORD COUNTY IN NORTH CENTRAL OHIO
  SOUTHERN HURON COUNTY IN NORTH CENTRAL OHIO
  NORTHWESTERN RICHLAND COUNTY IN NORTH CENTRAL OHIO
  SOUTHEASTERN SENECA COUNTY IN NORTHWEST OHIO

* UNTIL 830 PM EDT

* AT 741 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 10
  MILES NORTHEAST OF BLOOMVILLE...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WILLARD...
  PLYMOUTH...
  NEW LONDON...
  SAVANNAH...
  POLK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE 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 4122 8283 4113 8283 4108 8234 4107 8233
      4106 8218 4100 8217 4099 8213 4094 8213
      4093 8311 4099 8312 4100 8335
TIME...MOT...LOC 2344Z 276DEG 30KT 4115 8286

$$

KOSARIK

1 follow-up statement

949 
WWUS51 KCLE 092356
SVSCLE

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

OHC005-033-077-139-147-100030-
/O.CON.KCLE.SV.W.0243.000000T0000Z-110810T0030Z/
ASHLAND OH-CRAWFORD OH-HURON OH-RICHLAND OH-SENECA OH-
756 PM EDT TUE AUG 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR NORTHWESTERN RICHLAND...SOUTHERN HURON...NORTHERN CRAWFORD AND
NORTHERN ASHLAND COUNTIES IN NORTH CENTRAL OHIO...AND SOUTHEASTERN
SENECA COUNTY IN NORTHWEST OHIO...

AT 741 PM EDT...TRAINED WEATHER SPOTTERS IN REPUBLIC REPORTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS 
STORM WAS LOCATED 6 MILES NORTH OF WILLARD...OR 10 MILES SOUTHWEST 
OF NORWALK...MOVING EAST AT 35 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...NORTH
FAIRFIELD...GREENWICH AND NEW LONDON.

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 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 4122 8283 4113 8283 4108 8234 4107 8233
      4106 8218 4100 8217 4099 8213 4094 8213
      4093 8311 4099 8312 4100 8335
TIME...MOT...LOC 2356Z 276DEG 30KT 4114 8273

$$

SCHULER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 2:56 PM EDT	Small Craft Advisory	CLE		49 hr
Aug 9, 4:46 PM EDT	Special Marine Warning	CLE		89 min
Aug 9, 6:14 PM EDT	Special Marine Warning	CLE		2 hr
Aug 9, 6:19 PM EDT	Severe Thunderstorm Warning	CLE	Sandusky, Seneca	41 min
Aug 9, 6:36 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron	39 min
Aug 9, 6:50 PM EDT	Severe Thunderstorm Warning	CLE	Hancock, Wood	40 min
Aug 9, 7:00 PM EDT	Severe Thunderstorm Warning	CLE	Huron, Sandusky, Seneca	45 min
Aug 9, 7:06 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Lorain	69 min
Aug 9, 7:16 PM EDT	Special Marine Warning	CLE		119 min
Aug 9, 7:24 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron, Lorain, Medina	36 min

Nearby

Severe Thunderstorm Warnings in Ohio, 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.