Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 33, NWS Cleveland, OH

May 7, 2012Stark County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 7, 2012, 1:46 PM EDT for Stark County, Ohio. It was in force for 41 min. 1 report 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: May 7, 2012, 1:46 PM EDT (17:46 UTC)
Expired: May 7, 2012, 2:27 PM EDT
In force: 41 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Stark County, OH

The radar

The Cleveland radar (KCLE), 87 km from the middle of the area, began a volume at 17:48 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
May 7, 1:50 PM EDT	HAIL 1	Navarre, OH

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 5.8 hours before the alert went out and 112 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: 180 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 805 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

520 
WUUS51 KCLE 071746
SVRCLE
OHC151-071830-
/O.NEW.KCLE.SV.W.0033.120507T1746Z-120507T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
146 PM EDT MON MAY 7 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 230 PM EDT

* AT 143 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
  BREWSTER...AND MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CANTON...
  NAVARRE...
  MASSILLON...
  EAST SPARTA...
  NORTH CANTON...
  WAYNESBURG...
  LOUISVILLE...
  ALLIANCE...

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 4063 8165 4077 8164 4099 8119 4099 8109
      4074 8108 4072 8109 4072 8123 4065 8124
      4065 8144 4066 8146 4065 8147
TIME...MOT...LOC 1746Z 260DEG 14KT 4067 8154

$$

LAPLANTE

2 follow-up statements

267 
WWUS51 KCLE 071803
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
203 PM EDT MON MAY 7 2012

OHC151-071830-
/O.CON.KCLE.SV.W.0033.000000T0000Z-120507T1830Z/
STARK OH-
203 PM EDT MON MAY 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR STARK COUNTY...

AT 157 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 LOUISVILLE...OR 10 MILES EAST OF CANTON...MOVING NORTHEAST AT 15
MPH. ANOTHER STRONG STORM ALSO MOVING NORTHEAST AT 15 MPH WAS 
LOCATED SOUTHEAST OF NAVARRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE DAMAGING HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4063 8165 4077 8164 4099 8119 4099 8109
      4074 8108 4072 8109 4072 8123 4065 8124
      4065 8144 4066 8146 4065 8147
TIME...MOT...LOC 1802Z 239DEG 44KT 4090 8112

$$

SJAMISON

382 
WWUS51 KCLE 071827
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
227 PM EDT MON MAY 7 2012

OHC151-071836-
/O.CAN.KCLE.SV.W.0033.000000T0000Z-120507T1830Z/
STARK OH-
227 PM EDT MON MAY 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR STARK COUNTY IS CANCELLED...

THE STORM HAS WEAKENED AND MOVED OUT OF THE WARNED AREA.

LAT...LON 4063 8165 4077 8164 4099 8119 4099 8109
      4074 8108 4072 8109 4072 8123 4065 8124
      4065 8144 4066 8146 4065 8147
TIME...MOT...LOC 1826Z 260DEG 14KT 4070 8134

$$

LAPLANTE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 9:53 AM EDT	Areal Flood Advisory	CLE	Erie, Sandusky	4 hr
May 7, 5:07 PM EDT	Severe Thunderstorm Warning	CLE	Medina	53 min
May 7, 5:24 PM EDT	Severe Thunderstorm Warning	CLE	Marion, Wyandot	66 min
May 7, 5:52 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Marion, Richland, Wyandot	53 min
May 7, 6:42 PM EDT	Areal Flood Advisory	CLE	Crawford, Wyandot	5 hr
May 7, 7:03 PM EDT	Severe Thunderstorm Warning	CLE	Trumbull	57 min
May 7, 7:32 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	58 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.