Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 170, NWS Cleveland, OH

August 10, 2012Erie County, Lorain County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 10, 2012, 2:14 AM EDT for Erie County, Lorain County, Ohio. It was in force for 43 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 10, 2012, 2:14 AM EDT (06:14 UTC)
Expired
Aug 10, 2012, 2:57 AM EDT
In force
43 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Erie County, OH, Lorain County, OH

The radar

The Cleveland radar (KCLE), 29 km from the middle of the area, began a volume at 06:14 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, 6.2 hours before the alert went out and 177 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.

154 
WUUS51 KCLE 100614
SVRCLE
OHC043-093-100715-
/O.NEW.KCLE.SV.W.0170.120810T0614Z-120810T0715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
214 AM EDT FRI AUG 10 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ERIE COUNTY IN NORTH CENTRAL OHIO
  NORTHERN LORAIN COUNTY IN NORTH CENTRAL OHIO

* UNTIL 315 AM EDT

* AT 209 AM 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 13 MILES WEST OF VERMILION TO
  11 MILES SOUTHWEST OF VERMILION...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LORAIN...
  ELYRIA...
  VERMILION...
  AMHERST...
  GRAFTON...
  NORTH RIDGEVILLE...

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 4151 8196 4136 8197 4135 8188 4128 8188
      4128 8256 4146 8265 4141 8255 4139 8247
      4144 8235 4144 8227 4148 8219 4152 8199
TIME...MOT...LOC 0614Z 256DEG 31KT 4148 8251 4130 8239

$$

KUBINA
2 follow-up statements
161 
WWUS51 KCLE 100634
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
234 AM EDT FRI AUG 10 2012

OHC043-100644-
/O.CAN.KCLE.SV.W.0170.000000T0000Z-120810T0715Z/
ERIE OH-
234 AM EDT FRI AUG 10 2012

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

LAT...LON 4151 8196 4150 8197 4136 8197 4135 8188
      4128 8188 4128 8235 4143 8235 4144 8227
      4148 8219 4152 8199
TIME...MOT...LOC 0634Z 256DEG 31KT 4152 8229 4134 8217

$$

OHC093-100715-
/O.CON.KCLE.SV.W.0170.000000T0000Z-120810T0715Z/
LORAIN OH-
234 AM EDT FRI AUG 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM EDT
FOR NORTHERN LORAIN COUNTY...

AT 228 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE 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 7 MILES NORTH OF VERMILION TO
SOUTH AMHERST...MOVING EAST AT 35 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...LORAIN...
ELYRIA...GRAFTON...EATON ESTATES...SHEFFIELD...SHEFFIELD LAKE...NORTH
RIDGEVILLE...AVON AND AVON LAKE.

LAT...LON 4151 8196 4150 8197 4136 8197 4135 8188
      4128 8188 4128 8235 4143 8235 4144 8227
      4148 8219 4152 8199
TIME...MOT...LOC 0634Z 256DEG 31KT 4152 8229 4134 8217

$$

KUBINA
271 
WWUS51 KCLE 100657
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
257 AM EDT FRI AUG 10 2012

OHC093-100707-
/O.CAN.KCLE.SV.W.0170.000000T0000Z-120810T0715Z/
LORAIN OH-
257 AM EDT FRI AUG 10 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LORAIN COUNTY IS
CANCELLED...

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

LAT...LON 4151 8196 4150 8197 4136 8197 4135 8188
      4128 8188 4128 8235 4143 8235 4144 8227
      4148 8219 4152 8199
TIME...MOT...LOC 0657Z 256DEG 31KT 4157 8203 4139 8191

$$

KUBINA

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, 10:39 PM EDTSevere Thunderstorm WarningCLEErie31 min
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, 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.