Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 37, NWS Cleveland, OH

May 12, 2011Ashtabula County, Geauga County, Lake County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 12, 2011, 4:14 PM EDT for Ashtabula County, Geauga County, Lake County, 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
May 12, 2011, 4:14 PM EDT (20:14 UTC)
Expired
May 12, 2011, 5:00 PM EDT
In force
46 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Ashtabula County, OH, Geauga County, OH, Lake County, OH

The radar

The Cleveland radar (KCLE), 78 km from the middle of the area, began a volume at 20:17 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
May 12, 4:35 PM EDTHAIL 1.75Middlefield, OH
May 12, 4:43 PM EDTHAIL 0.88Middlefield, 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
May 12, 11:04 AM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.2 hours before the alert went out and 160 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, Pittsburgh, PA at 12:00Z on 2011-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Pittsburgh, PA at 12:00Z on 2011-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1624 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
44 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.

662 
WUUS51 KCLE 122014
SVRCLE
OHC007-055-085-122100-
/O.NEW.KCLE.SV.W.0037.110512T2014Z-110512T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
414 PM EDT THU MAY 12 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ASHTABULA COUNTY IN NORTHEAST OHIO
  EASTERN GEAUGA COUNTY IN NORTHEAST OHIO
  NORTHEASTERN LAKE COUNTY IN NORTHEAST OHIO

* UNTIL 500 PM EDT

* AT 408 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 8 MILES
  NORTH OF BURTON...AND MOVING SOUTH AT 10 MPH.
  
  ANOTHER SEVERE THUNDERSTORM WAS LOCATED 6 MILES SOUTHWEST OF GENEVA
  MOVING NORTHEAST AT AROUND 15 MPH. HAIL UP TO THE SIZE OF HALF DOLLARS 
  MAY BE POSSIBLE WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  BURTON...
  ORWELL...
  MIDDLEFIELD...

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 4189 8087 4151 8084 4150 8100 4143 8100
      4142 8118 4161 8118 4165 8110 4171 8108
      4184 8105 4187 8091 4188 8092
TIME...MOT...LOC 2012Z 343DEG 8KT 4157 8109

$$

OUDEMAN
1 follow-up statement
533 
WWUS51 KCLE 122050
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
450 PM EDT THU MAY 12 2011

OHC007-055-085-122100-
/O.CON.KCLE.SV.W.0037.000000T0000Z-110512T2100Z/
GEAUGA OH-LAKE OH-ASHTABULA OH-
450 PM EDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR WESTERN ASHTABULA...NORTHEASTERN LAKE AND EASTERN GEAUGA
COUNTIES...

AT 445 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR MIDDLEFIELD...OR 9 MILES SOUTHEAST OF CHARDON...MOVING SOUTH AT
10 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
MIDDLEFIELD.

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 700 PM EDT
THURSDAY EVENING FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4189 8087 4151 8084 4150 8100 4143 8100
      4142 8118 4161 8118 4165 8110 4171 8108
      4184 8105 4187 8091 4188 8092
TIME...MOT...LOC 2050Z 343DEG 8KT 4149 8106

$$
SCHULER

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 5:11 AM EDTSevere Thunderstorm WarningCLEAshland, Richland49 min
May 12, 6:03 AM EDTSevere Thunderstorm WarningCLEAshland, Holmes, Wayne57 min
May 12, 7:02 AM EDTSevere Thunderstorm WarningCLEHolmes58 min
May 12, 8:23 AM EDTSpecial Marine WarningCLE82 min
May 12, 2:50 PM EDTSevere Thunderstorm WarningCLEErie, Huron, Lorain40 min
May 12, 3:33 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake42 min
May 12, 3:34 PM EDTSevere Thunderstorm WarningCLECrawford, Huron, Richland, Seneca56 min
May 12, 3:44 PM EDTFlash Flood WarningCLEAshtabula, Geauga, Lake3 hr
May 12, 3:50 PM EDTSevere Thunderstorm WarningCLEAshland, Medina, Wayne55 min
May 12, 3:54 PM EDTSevere Thunderstorm WarningCLEErie, Huron51 min
May 12, 3:56 PM EDTSevere Thunderstorm WarningCLEMedina, Portage, Summit64 min
May 12, 4:08 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina, Summit67 min
May 12, 4:11 PM EDTAreal Flood AdvisoryCLEAshland, Cuyahoga, Erie, Geauga, Huron, Lake and 5 more10 hr
May 12, 4:19 PM EDTSevere Thunderstorm WarningCLETrumbull41 min
May 12, 4:26 PM EDTAreal Flood WarningCLEErie, Huron3 hr
May 12, 4:39 PM EDTSevere Thunderstorm WarningCLEGeauga, Portage, Trumbull51 min
May 12, 4:45 PM EDTSevere Thunderstorm WarningCLEGeauga45 min
May 12, 4:58 PM EDTSevere Thunderstorm WarningCLEAshland, Medina, Wayne47 min
May 12, 5:27 PM EDTAreal Flood AdvisoryCLEMahoning, Trumbull9 hr
May 12, 5:29 PM EDTRiver Flood WarningCLEErie, Huron7 hr
May 12, 5:43 PM EDTSpecial Marine WarningCLE77 min
May 12, 5:58 PM EDTSevere Thunderstorm WarningCLEMahoning47 min
May 12, 6:38 PM EDTAreal Flood AdvisoryCLESandusky, Seneca3 hr
May 12, 6:43 PM EDTAreal Flood WarningCLEGeauga, Lake4 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011Every 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.