Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Cleveland, OH

May 7, 2012Trumbull County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 7, 2012, 8:25 PM EDT for Trumbull County, Ohio. It was in force for 35 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, 8:25 PM EDT (00:25 UTC)
Expired
May 7, 2012, 9:00 PM EDT
In force
35 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Trumbull County, OH

The radar

The Pittsburgh radar (KPBZ), 79 km from the middle of the area, began a volume at 00:25 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

TimeReportWhereRemark
May 7, 8:27 PM EDTHAIL 0.757 E Vienna, OH
May 7, 8:27 PM EDTHAIL 1Hubbard, OH
May 7, 8:38 PM EDTHAIL 14 N Youngstown, 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 00:00Z, 0.4 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-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2012-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 920 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2012-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 square meters per square second.193958Sfc1 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
920 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1102 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

441 
WUUS51 KCLE 080025
SVRCLE
OHC155-080100-
/O.NEW.KCLE.SV.W.0039.120508T0025Z-120508T0100Z/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN TRUMBULL COUNTY IN NORTHEAST OHIO

* UNTIL 900 PM EDT

* AT 816 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
  HUBBARD...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
HUBBARD

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 4113 8067 4114 8067 4130 8066 4130 8051
      4114 8051 4113 8052
TIME...MOT...LOC 0025Z 276DEG 17KT 4121 8056

$$

KING
1 follow-up statement
551 
WWUS51 KCLE 080052
SVSCLE

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

OHC155-080102-
/O.EXP.KCLE.SV.W.0039.000000T0000Z-120508T0100Z/
TRUMBULL OH-
852 PM EDT MON MAY 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TRUMBULL COUNTY
EXPIRES AT 900 PM EDT...

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

LAT...LON 4113 8067 4114 8067 4130 8066 4130 8051
      4114 8051 4113 8052
TIME...MOT...LOC 0052Z 276DEG 17KT 4120 8039

$$

KING

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 8:16 PM EDTAreal Flood AdvisoryCLEAshland, Knox, Medina, Morrow, Richland, Wayne6 hr
May 7, 8:33 PM EDTAreal Flood WarningCLETrumbull6 hr
May 7, 9:25 PM EDTRiver Flood WarningCLEOttawa, Sandusky, Wood20 hr
May 7, 10:37 PM EDTAreal Flood WarningCLEPortage, Summit6 hr
May 8, 11:23 AM EDTRiver Flood WarningCLEMarion32 hr
May 8, 6:40 PM EDTRiver Flood WarningCLETrumbull10 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.