Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 164, NWS Cleveland, OH

August 9, 2012Stark County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 9, 2012, 5:42 PM EDT for Stark County, Ohio. It was in force for 18 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: Aug 9, 2012, 5:42 PM EDT (21:42 UTC)
Expired: Aug 9, 2012, 6:00 PM EDT
In force: 18 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Stark County, OH

The radar

The Pittsburgh radar (KPBZ), 82 km from the middle of the area, began a volume at 21:42 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

Time	Report	Where	Remark
Aug 9, 5:47 PM EDT	HAIL 1	4 S New Franklin, OH	QUARTER SIZED HAIL REPORTED IN MINERVA.
Aug 9, 5:50 PM EDT	TSTM WND DMG	4 S New Franklin, OH	NUMEROUS TREE BRANCHES DOWN BY THUNDERSTORM WINDS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 9.7 hours before the alert went out and 96 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: 769 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

355 
WUUS51 KCLE 092142
SVRCLE
OHC151-092200-
/O.NEW.KCLE.SV.W.0164.120809T2142Z-120809T2200Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN STARK COUNTY IN NORTHEAST OHIO

* UNTIL 600 PM EDT

* AT 542 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 OVER
  EXTREME WEST CENTRAL COLUMBIANA COUNTY...AND MOVING NORTHEAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE IMPACT RURAL AREAS OF THE
  INDICATED 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 4074 8120 4074 8121 4082 8109 4082 8108
      4073 8108 4072 8109 4073 8119
TIME...MOT...LOC 2143Z 234DEG 20KT 4077 8108

$$

KING

2 follow-up statements

333 
WUUS51 KCLE 092146 CCA
SVRCLE
OHC151-092200-
/O.COR.KCLE.SV.W.0164.120809T2142Z-120809T2200Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEAST STARK COUNTY IN NORTHEAST OHIO

* UNTIL 600 PM EDT

* AT 542 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 OVER
  EXTREME SOUTHEAST STARK COUNTY...AND MOVING NORTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE IMPACT RURAL AREAS OF THE
  INDICATED 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 4074 8120 4074 8121 4082 8109 4082 8108
      4073 8108 4072 8109 4073 8119
TIME...MOT...LOC 2142Z 238DEG 14KT 4076 8110

$$

KING

005 
WWUS51 KCLE 092159
SVSCLE

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

OHC151-092209-
/O.EXP.KCLE.SV.W.0164.000000T0000Z-120809T2200Z/
STARK OH-
559 PM EDT THU AUG 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEAST STARK COUNTY EXPIRES
AT 600 PM EDT...

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

LAT...LON 4074 8120 4074 8121 4082 8109 4082 8108
      4073 8108 4072 8109 4073 8119
TIME...MOT...LOC 2159Z 238DEG 14KT 4079 8103

$$

KING

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 12:06 PM EDT	Special Marine Warning	CLE		39 min
Aug 9, 5:29 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning	16 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.