Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 38, NWS Cleveland, OH

May 7, 2012Ashtabula County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 7, 2012, 7:32 PM EDT for Ashtabula County, Ohio. It was in force for 58 min. 3 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: May 7, 2012, 7:32 PM EDT (23:32 UTC)
Expired: May 7, 2012, 8:30 PM EDT
In force: 58 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Ashtabula County, OH

The radar

The Cleveland radar (KCLE), 107 km from the middle of the area, began a volume at 23:34 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, 7:40 PM EDT	HAIL 1.25	5 Nw Jefferson, OH	QUARTER SIZE TO DOLLAR SIZE HAIL IN AUSTINBURG.
May 7, 7:47 PM EDT	HAIL 0.88	Ashtabula, OH
May 7, 7:55 PM EDT	HAIL 0.88	Conneaut, 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, 11.5 hours before the alert went out and 169 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.

673 
WUUS51 KCLE 072332
SVRCLE
OHC007-080030-
/O.NEW.KCLE.SV.W.0038.120507T2332Z-120508T0030Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ASHTABULA COUNTY IN NORTHEAST OHIO

* UNTIL 830 PM EDT

* AT 724 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
  GENEVA...AND MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JEFFERSON...
  ASHTABULA...
  NORTH KINGSVILLE...
  CONNEAUT...

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 4174 8052 4164 8088 4173 8100 4186 8101
      4188 8091 4192 8080 4193 8072 4196 8064
      4196 8059 4198 8056 4198 8052
TIME...MOT...LOC 2332Z 226DEG 23KT 4177 8087

$$

KING

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, 1:46 PM EDT	Severe Thunderstorm Warning	CLE	Stark	41 min
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

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.