Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 104, NWS Cleveland, OH

July 4, 20124 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 4, 2012, 7:09 PM EDT for 4 counties in Ohio. It was in force for 51 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
Jul 4, 2012, 7:09 PM EDT (23:09 UTC)
Expired
Jul 4, 2012, 8:00 PM EDT
In force
51 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Erie County, OH, Lucas County, OH, Ottawa County, OH, Sandusky County, OH

The radar

The Cleveland radar (KCLE), 93 km from the middle of the area, began a volume at 23:09 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
Jul 4, 7:19 PM EDTHAIL 15 Ene Genoa, OH
Jul 4, 7:44 PM EDTHAIL 0.88Oak Harbor, OH

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.2 hours before the alert went out and 134 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 12:00Z on 2012-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2763 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 12:00Z on 2012-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
2763 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1189 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

248 
WUUS51 KCLE 042309
SVRCLE
OHC043-095-123-143-050000-
/O.NEW.KCLE.SV.W.0104.120704T2309Z-120705T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
709 PM EDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ERIE COUNTY IN NORTH CENTRAL OHIO
  NORTHEASTERN LUCAS COUNTY IN NORTHWEST OHIO
  OTTAWA COUNTY IN NORTHWEST OHIO
  NORTHEASTERN SANDUSKY COUNTY IN NORTHWEST OHIO

* UNTIL 800 PM EDT

* AT 704 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER     
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS  
  WERE LOCATED OVER LAKE ERIE JUST WEST OF THE ISLANDS. THE STORMS   
  WERE MOVING SOUTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PORT CLINTON...
  FREMONT...
  SANDUSKY...
  CLYDE...
  GIBSONBURG...
  OAK HARBOR...
  PUT-IN-BAY...
  CASTALIA...
  KELLEYS ISLAND...
  BELLEVUE...

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 4171 8332 4163 8314 4175 8311
      4175 8310 4163 8314 4153 8290 4173 8281
      4168 8277 4158 8282 4155 8278 4163 8272
      4151 8271 4144 8262 4127 8285 4139 8341
TIME...MOT...LOC 2307Z 310DEG 17KT 4163 8312

$$

ADAMS
1 follow-up statement
773 
WWUS51 KCLE 042342
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
742 PM EDT WED JUL 4 2012

OHC043-095-123-143-050000-
/O.CON.KCLE.SV.W.0104.000000T0000Z-120705T0000Z/
LUCAS OH-OTTAWA OH-SANDUSKY OH-ERIE OH-
742 PM EDT WED JUL 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR WESTERN ERIE COUNTY IN NORTH CENTRAL OHIO...AND NORTHEASTERN
SANDUSKY...OTTAWA AND EXTREME NORTHEASTERN LUCAS COUNTIES IN
NORTHWEST OHIO...

AT 738 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE 
STORMS WERE LOCATED NEAR PORT CLINTON...MOVING SOUTHEAST AT 20 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...PORT
CLINTON...BAY VIEW...CASTALIA AND SANDUSKY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4170 8332 4163 8317 4175 8310 4163 8316
      4152 8292 4160 8282 4163 8286 4173 8281
      4167 8277 4158 8282 4155 8278 4155 8274
      4162 8272 4151 8271 4144 8263 4127 8285
      4137 8331
TIME...MOT...LOC 2341Z 310DEG 17KT 4153 8298

$$

ADAMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 8:00 PM EDTSevere Thunderstorm WarningCLEAshtabula45 min
Jul 3, 8:27 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake63 min
Jul 3, 8:56 PM EDTSevere Thunderstorm WarningCLETrumbull64 min
Jul 3, 9:17 PM EDTAreal Flood AdvisoryCLEGeauga, Lake3 hr
Jul 3, 10:18 PM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Stark, Summit, Trumbull57 min
Jul 3, 10:57 PM EDTTornado WarningCLEMahoning, Stark27 min
Jul 4, 12:03 AM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Trumbull57 min
Jul 4, 12:12 AM EDTSevere Thunderstorm WarningCLEPortage, Stark, Summit63 min
Jul 4, 12:45 AM EDTTornado WarningCLEMahoning, Portage45 min
Jul 4, 9:51 AM EDTSpecial Marine WarningCLE84 min
Jul 4, 9:53 AM EDTExcessive Heat WarningCLEHancock, Lucas, Wood11 hr
Jul 4, 6:34 PM EDTSpecial Marine WarningCLE116 min
Jul 4, 7:57 PM EDTSevere Thunderstorm WarningCLECrawford, Hancock, Marion, Wood, Wyandot48 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.