Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 153, NWS Cleveland, OH

August 4, 20124 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 4, 2012, 10:04 PM EDT for 4 counties in Ohio. It was in force for 71 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 4, 2012, 10:04 PM EDT (02:04 UTC)
Expired
Aug 4, 2012, 11:15 PM EDT
In force
71 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Ottawa County, OH, Sandusky County, OH, Seneca County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 100 km from the middle of the area, began a volume at 02:03 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 4, 7:50 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.1 hours before the alert went out and 162 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, Detroit, MI at 00:00Z on 2012-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1163 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, Detroit, MI at 00:00Z on 2012-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 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
1163 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1310 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

148 
WUUS51 KCLE 050204
SVRCLE
OHC123-143-147-175-050315-
/O.NEW.KCLE.SV.W.0153.120805T0204Z-120805T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1004 PM EDT SAT AUG 4 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OTTAWA COUNTY IN NORTHWEST OHIO
  SANDUSKY COUNTY IN NORTHWEST OHIO
  SENECA COUNTY IN NORTHWEST OHIO
  WYANDOT COUNTY IN NORTHWEST OHIO

* UNTIL 1115 PM EDT

* AT 1003 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM GENOA TO 7 MILES NORTH OF FOSTORIA TO 7 MILES WEST OF
  MARSEILLES...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ELMORE...
  UPPER SANDUSKY...
  TIFFIN...
  SYCAMORE...
  FREMONT...
  PORT CLINTON...
  CLYDE...
  MARSEILLES...
  GIBSONBURG...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE 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 4099 8346 4099 8342 4162 8341 4162 8310
      4152 8293 4155 8287 4160 8284 4155 8278
      4155 8272 4154 8271 4148 8274 4150 8280
      4146 8297 4143 8294 4145 8284 4100 8284
      4099 8311 4070 8311 4069 8350 4090 8352
TIME...MOT...LOC 0204Z 268DEG 38KT 4159 8337 4126 8345
          4067 8351

$$

LAPLANTE
2 follow-up statements
095 
WWUS51 KCLE 050253
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1053 PM EDT SAT AUG 4 2012

OHC123-143-147-175-050315-
/O.CON.KCLE.SV.W.0153.000000T0000Z-120805T0315Z/
WYANDOT OH-SENECA OH-OTTAWA OH-SANDUSKY OH-
1053 PM EDT SAT AUG 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR EASTERN SANDUSKY...EASTERN OTTAWA...EASTERN SENECA AND WYANDOT
COUNTIES...

AT 1049 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 11 MILES NORTH OF PORT CLINTON TO BELLEVUE TO 12 MILES
SOUTH OF ATTICA...MOVING NORTHEAST AT 50 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...MARBLEHEAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR NORTHWESTERN OHIO.

&&

LAT...LON 4085 8350 4085 8331 4099 8322 4162 8322
      4162 8310 4152 8293 4160 8284 4155 8278
      4155 8272 4154 8271 4148 8274 4150 8280
      4146 8297 4143 8294 4144 8284 4100 8284
      4099 8311 4070 8311 4070 8350
TIME...MOT...LOC 0251Z 221DEG 45KT 4169 8290 4132 8276
          4091 8282

$$

LOMBARDY
382 
WWUS51 KCLE 050306
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1106 PM EDT SAT AUG 4 2012

OHC143-147-175-050316-
/O.CAN.KCLE.SV.W.0153.000000T0000Z-120805T0315Z/
WYANDOT OH-SENECA OH-SANDUSKY OH-
1106 PM EDT SAT AUG 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SANDUSKY...EASTERN
SENECA AND WYANDOT COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR NORTHWESTERN OHIO.

LAT...LON 4155 8303 4152 8291 4155 8287 4160 8284
      4155 8278 4156 8277 4154 8271 4148 8274
      4150 8276 4150 8280 4147 8291 4148 8295
      4145 8299 4146 8302
TIME...MOT...LOC 0306Z 221DEG 45KT 4183 8273 4146 8260
          4105 8266

$$

OHC123-050315-
/O.CON.KCLE.SV.W.0153.000000T0000Z-120805T0315Z/
OTTAWA OH-
1106 PM EDT SAT AUG 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR SOUTHEASTERN OTTAWA COUNTY...

AT 1105 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 20 MILES NORTH OF MARBLEHEAD TO 8
MILES SOUTHEAST OF MARBLEHEAD TO 34 MILES SOUTH OF MARBLEHEAD...
MOVING NORTHEAST AT 50 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE....

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR NORTHWESTERN OHIO.

&&

LAT...LON 4155 8303 4152 8291 4155 8287 4160 8284
      4155 8278 4156 8277 4154 8271 4148 8274
      4150 8276 4150 8280 4147 8291 4148 8295
      4145 8299 4146 8302
TIME...MOT...LOC 0306Z 221DEG 45KT 4183 8273 4146 8260
          4105 8266

$$

LOMBARDY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 8:09 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky55 min
Aug 4, 8:22 PM EDTSpecial Marine WarningCLE113 min
Aug 4, 9:19 PM EDTSevere Thunderstorm WarningCLEHancock, Lucas, Wood71 min
Aug 4, 10:00 PM EDTSpecial Marine WarningCLE2 hr
Aug 4, 10:37 PM EDTSevere Thunderstorm WarningCLEMarion53 min
Aug 4, 10:43 PM EDTSevere Thunderstorm WarningCLECrawford, Erie, Huron62 min
Aug 4, 11:30 PM EDTSevere Thunderstorm WarningCLEAshland, Lorain, Medina40 min
Aug 4, 11:44 PM EDTSevere Thunderstorm WarningCLEWayne61 min
Aug 4, 11:50 PM EDTSpecial Marine WarningCLE100 min
Aug 4, 11:51 PM EDTSevere Thunderstorm WarningCLECuyahoga22 min
Aug 4, 11:56 PM EDTSevere Thunderstorm WarningCLEKnox47 min
Aug 5, 11:19 AM EDTSpecial Marine WarningCLE86 min
Aug 5, 2:42 PM EDTTornado WarningCLETrumbull18 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.