Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 151, NWS Cleveland, OH

August 4, 2012Ottawa County, Sandusky County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 4, 2012, 8:09 PM EDT for Ottawa County, Sandusky County, Ohio. It was in force for 55 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 4, 2012, 8:09 PM EDT (00:09 UTC)
Expired
Aug 4, 2012, 9:04 PM EDT
In force
55 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Ottawa County, OH, Sandusky County, OH

The radar

The Cleveland radar (KCLE), 92 km from the middle of the area, began a volume at 00:12 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 4, 8:24 PM EDTTSTM WND GST 601 E Oak Harbor, 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 4, 7:50 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 0.2 hours before the alert went out and 141 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°0°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.

319 
WUUS51 KCLE 050009
SVRCLE
OHC123-143-050115-
/O.NEW.KCLE.SV.W.0151.120805T0009Z-120805T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
809 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

* UNTIL 915 PM EDT

* AT 807 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 WOODVILLE TO GIBSONBURG TO 16
  MILES SOUTHWEST OF GIBSONBURG...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ELMORE...
  FREMONT...
  PORT CLINTON...
  CLYDE...
  WOODVILLE...
  GIBSONBURG...
  GENOA...
  OAK HARBOR...
  GREEN SPRINGS...

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 8341 4162 8310 4156 8302 4152 8293
      4153 8290 4158 8287 4160 8282 4155 8278
      4154 8270 4148 8274 4150 8280 4148 8282
      4149 8285 4146 8297 4143 8294 4145 8284
      4126 8284 4125 8342
TIME...MOT...LOC 0009Z 266DEG 29KT 4146 8344 4135 8338
          4122 8352

$$

LAPLANTE
2 follow-up statements
591 
WWUS51 KCLE 050046
SVSCLE

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

OHC123-143-050115-
/O.CON.KCLE.SV.W.0151.000000T0000Z-120805T0115Z/
OTTAWA OH-SANDUSKY OH-
846 PM EDT SAT AUG 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SANDUSKY AND SOUTHERN OTTAWA COUNTIES...

AT 843 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 PORT CLINTON TO FREMONT TO GREEN SPRINGS...MOVING EAST
AT 35 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4153 8333 4156 8316 4156 8300 4152 8293
      4160 8282 4155 8278 4154 8270 4148 8274
      4150 8280 4148 8282 4149 8285 4146 8297
      4143 8294 4145 8285 4126 8284 4125 8334
TIME...MOT...LOC 0046Z 266DEG 29KT 4149 8292 4136 8302
          4123 8305

$$

LOMBARDY
386 
WWUS51 KCLE 050104
SVSCLE

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

OHC123-143-050115-
/O.CAN.KCLE.SV.W.0151.000000T0000Z-120805T0115Z/
OTTAWA OH-SANDUSKY OH-
904 PM EDT SAT AUG 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR SANDUSKY AND SOUTHERN OTTAWA
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE.

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

LAT...LON 4153 8333 4156 8316 4156 8300 4152 8293
      4160 8282 4155 8278 4154 8270 4148 8274
      4150 8280 4148 8282 4149 8285 4146 8297
      4143 8294 4145 8285 4126 8284 4125 8334
TIME...MOT...LOC 0105Z 266DEG 29KT 4150 8271 4137 8281
          4124 8284

$$

LOMBARDY

The office that day

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

IssuedProductOfficeCountiesLasted
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, 10:04 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky, Seneca, Wyandot71 min
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.