Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 168, NWS Cleveland, OH

August 9, 2012Erie County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 9, 2012, 10:39 PM EDT for Erie County, Ohio. It was in force for 31 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 9, 2012, 10:39 PM EDT (02:39 UTC)
Expired
Aug 9, 2012, 11:10 PM EDT
In force
31 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Erie County, OH

The radar

The Cleveland radar (KCLE), 63 km from the middle of the area, began a volume at 02:43 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 nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.7 hours before the alert went out and 157 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 2012-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 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 2012-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.19395878Sfc1 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
54 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
87 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.

034 
WUUS51 KCLE 100239
SVRCLE
OHC043-100330-
/O.NEW.KCLE.SV.W.0168.120810T0239Z-120810T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1039 PM EDT THU AUG 9 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ERIE COUNTY IN NORTH CENTRAL OHIO

* UNTIL 1130 PM EDT

* AT 1038 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE GOLF BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED NEAR SANDUSKY...AND MOVING EAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
RURAL NORTHEASTERN ERIE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM HAS A HISTORY OF LARGE DAMAGING HAIL. 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 4146 8265 4139 8251 4139 8247 4143 8235
      4131 8240 4145 8279 4146 8278 4145 8277
      4147 8270 4149 8270 4150 8268
TIME...MOT...LOC 0239Z 290DEG 9KT 4151 8263

$$

KING
1 follow-up statement
034 
WWUS51 KCLE 100310
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1110 PM EDT THU AUG 9 2012

OHC043-100320-
/O.CAN.KCLE.SV.W.0168.000000T0000Z-120810T0330Z/
ERIE OH-
1110 PM EDT THU AUG 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ERIE COUNTY IN
NORTH CENTRAL OHIO IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4146 8265 4139 8251 4139 8247 4143 8235
      4131 8240 4145 8279 4146 8278 4145 8277
      4147 8270 4149 8270 4150 8268
TIME...MOT...LOC 0310Z 290DEG 9KT 4148 8253

$$

KING

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:45 PM EDTSevere Thunderstorm WarningCLEKnox60 min
Aug 9, 9:00 PM EDTSpecial Marine WarningCLE2 hr
Aug 9, 10:56 PM EDTSpecial Marine WarningCLE2 hr
Aug 10, 1:02 AM EDTSevere Thunderstorm WarningCLESandusky, Seneca58 min
Aug 10, 2:06 AM EDTSpecial Marine WarningCLE114 min
Aug 10, 2:14 AM EDTSevere Thunderstorm WarningCLEErie, Lorain43 min
Aug 10, 3:40 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake50 min
Aug 10, 4:39 PM EDTAreal Flood AdvisoryCLELake3 hr

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.