Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 28, NWS Cleveland, OH

April 30, 2012Richland County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Apr 30, 2012, 9:13 PM EDT for Richland County, Ohio. It was in force for 32 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, 9:13 PM EDT (01:13 UTC)
Expired: Apr 30, 2012, 9:45 PM EDT
In force: 32 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Richland County, OH

The radar

The Cleveland radar (KCLE), 96 km from the middle of the area, began a volume at 01:16 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.

Issued	Product	Office	Lasted
Apr 30, 6:04 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.2 hours before the alert went out and 179 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 98 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1642 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

763 
WUUS51 KCLE 010113
SVRCLE
OHC139-010145-
/O.NEW.KCLE.SV.W.0028.120501T0113Z-120501T0145Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RICHLAND COUNTY IN NORTH CENTRAL OHIO

* UNTIL 945 PM EDT

* AT 912 PM 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 8 MILES EAST OF SHELBY TO
  BELLVILLE...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
RURAL EASTERN RICHLAND COUNTY

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 4064 8263 4064 8265 4066 8265 4067 8263
      4071 8263 4071 8273 4099 8272 4099 8242
      4082 8242 4081 8239 4073 8238 4072 8234
      4056 8234 4055 8262
TIME...MOT...LOC 0113Z 269DEG 28KT 4089 8250 4062 8252

$$

KUBINA

1 follow-up statement

045 
WWUS51 KCLE 010140
SVSCLE

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

OHC139-010149-
/O.EXP.KCLE.SV.W.0028.000000T0000Z-120501T0145Z/
RICHLAND OH-
940 PM EDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR RICHLAND COUNTY EXPIRES AT 945
PM EDT...

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

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

LAT...LON 4064 8263 4064 8265 4066 8265 4067 8263
      4071 8263 4071 8273 4099 8272 4099 8242
      4082 8242 4081 8239 4073 8238 4072 8234
      4056 8234 4055 8262
TIME...MOT...LOC 0139Z 269DEG 28KT 4089 8223 4062 8225

$$

JMAYERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 9:12 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Medina, Wayne	63 min
Apr 30, 9:51 PM EDT	Severe Thunderstorm Warning	CLE	Holmes, Wayne	24 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012 Every 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.