Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 26, NWS Cleveland, OH

April 30, 20124 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Apr 30, 2012, 7:41 PM EDT for 4 counties in Ohio. It was in force for 27 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
Apr 30, 2012, 7:41 PM EDT (23:41 UTC)
Expired
Apr 30, 2012, 8:08 PM EDT
In force
27 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Crawford County, OH, Marion County, OH, Seneca County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 109 km from the middle of the area, began a volume at 23:45 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 30, 6:04 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.7 hours before the alert went out and 187 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 2012-04-30Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2012-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 522 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1846 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
522 m²/s²
0-3 km storm-relative helicity
699 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.

822 
WUUS51 KCLE 302341
SVRCLE
OHC033-101-147-175-010045-
/O.NEW.KCLE.SV.W.0026.120430T2341Z-120501T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
741 PM EDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CRAWFORD COUNTY IN NORTH CENTRAL OHIO
  NORTHERN MARION COUNTY IN NORTH CENTRAL OHIO
  EASTERN SENECA COUNTY IN NORTHWEST OHIO
  WYANDOT COUNTY IN NORTHWEST OHIO

* UNTIL 845 PM EDT

* AT 740 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 NEAR
  UPPER SANDUSKY...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  UPPER SANDUSKY...
  SYCAMORE...
  TIFFIN...
  BLOOMVILLE...
  CHATFIELD...

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 4126 8311 4126 8286 4125 8284 4099 8283
      4061 8326 4076 8348
TIME...MOT...LOC 2341Z 224DEG 31KT 4077 8330

$$

LOMBARDY
2 follow-up statements
099 
WWUS51 KCLE 302356
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
756 PM EDT MON APR 30 2012

OHC101-010005-
/O.CAN.KCLE.SV.W.0026.000000T0000Z-120501T0045Z/
MARION OH-
756 PM EDT MON APR 30 2012

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
TUESDAY MORNING FOR NORTHERN OHIO.

LAT...LON 4126 8311 4126 8286 4125 8284 4099 8283
      4070 8316 4069 8337 4076 8348
TIME...MOT...LOC 2355Z 229DEG 32KT 4086 8316

$$

OHC033-147-175-010045-
/O.CON.KCLE.SV.W.0026.000000T0000Z-120501T0045Z/
WYANDOT OH-CRAWFORD OH-SENECA OH-
756 PM EDT MON APR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR NORTHWESTERN CRAWFORD COUNTY IN NORTH CENTRAL OHIO...AND EASTERN
SENECA AND WYANDOT COUNTIES IN NORTHWEST OHIO...

AT 753 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 NEVADA...OR NEAR UPPER SANDUSKY...MOVING NORTHEAST AT 35 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
SYCAMORE...CHATFIELD...BLOOMVILLE...ATTICA AND REPUBLIC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
TUESDAY MORNING FOR NORTHERN OHIO.

&&

LAT...LON 4126 8311 4126 8286 4125 8284 4099 8283
      4070 8316 4069 8337 4076 8348
TIME...MOT...LOC 2355Z 229DEG 32KT 4086 8316

$$
MITCHELL/MAYERS
580 
WWUS51 KCLE 010008
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
808 PM EDT MON APR 30 2012

OHC033-147-175-010017-
/O.CAN.KCLE.SV.W.0026.000000T0000Z-120501T0045Z/
WYANDOT OH-CRAWFORD OH-SENECA OH-
808 PM EDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CRAWFORD COUNTY
IN NORTH CENTRAL OHIO...AND EASTERN SENECA AND WYANDOT COUNTIES IN
NORTHWEST OHIO IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE...HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
TUESDAY MORNING FOR NORTHERN OHIO.

LAT...LON 4126 8311 4126 8286 4125 8284 4099 8283
      4070 8316 4069 8337 4076 8348
TIME...MOT...LOC 0007Z 229DEG 32KT 4093 8305

$$

JMAYERS

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.