Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 57, NWS Cleveland, OH

May 29, 2012Mahoning County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 29, 2012, 5:56 PM EDT for Mahoning County, Ohio. It was in force for 38 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 29, 2012, 5:56 PM EDT (21:56 UTC)
Expired
May 29, 2012, 6:34 PM EDT
In force
38 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Mahoning County, OH

The radar

The Pittsburgh radar (KPBZ), 65 km from the middle of the area, began a volume at 21:59 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 29, 6:05 PM EDTTSTM WND DMGCanfield, OHNUMEROUS TREES AND WIRES DOWN.
May 29, 6:15 PM EDTTSTM WND DMGBoardman, OHNUMBEROUS TREES DOWN. PEA TO NICKEL SIZE HAIL.
May 29, 6:15 PM EDTHAIL 0.88Boardman, 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, 9.9 hours before the alert went out and 82 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 12:00Z on 2012-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1123 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 12:00Z on 2012-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
1123 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1071 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

080 
WUUS51 KCLE 292156
SVRCLE
OHC099-292245-
/O.NEW.KCLE.SV.W.0057.120529T2156Z-120529T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
556 PM EDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 552 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 6 MILES
  WEST OF CANFIELD...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  YOUNGSTOWN...
  CANFIELD...
  BOARDMAN...
  CAMPBELL...

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 4096 8098 4114 8098 4113 8052 4108 8051
      4090 8051 4090 8052 4089 8058
TIME...MOT...LOC 2156Z 270DEG 22KT 4105 8085

$$

KIELTYKA
2 follow-up statements
858 
WWUS51 KCLE 292222
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
622 PM EDT TUE MAY 29 2012

OHC099-292245-
/O.CON.KCLE.SV.W.0057.000000T0000Z-120529T2245Z/
MAHONING OH-
622 PM EDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR EASTERN MAHONING COUNTY...

AT 618 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR POLAND...OR 7
MILES SOUTHEAST OF YOUNGSTOWN...MOVING EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...POLAND 
AND NEW MIDDLETOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LARGE LIMB WAS DOWN ON THE CANFIELD AND BOARDMAN BORDER WITH THIS 
STORM. THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND STAY AWAY 
FROM WINDOWS!

NICKEL SIZE HAIL HAS BEEN REPORTED IN BOARDMAN WITH THIS STORM. IF 
YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION TO PROTECT 
LIFE AND PROPERTY.

&&

LAT...LON 4092 8072 4113 8070 4113 8052 4108 8051
      4090 8051 4090 8052 4089 8058
TIME...MOT...LOC 2219Z 280DEG 30KT 4102 8057

$$

MITCHELL
379 
WWUS51 KCLE 292234
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
634 PM EDT TUE MAY 29 2012

OHC099-292243-
/O.CAN.KCLE.SV.W.0057.000000T0000Z-120529T2245Z/
MAHONING OH-
634 PM EDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MAHONING COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF 
THE WARNED AREA...HOWEVER HEAVY RAIN IS STILL POSSIBLE ACROSS 
MAHONING COUNTY EARLY THIS EVENING.

LAT...LON 4092 8072 4113 8070 4113 8052 4108 8051
      4090 8051 4090 8052 4089 8058
TIME...MOT...LOC 2233Z 280DEG 30KT 4100 8042

$$

MITCHELL

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 5:07 AM EDTSpecial Marine WarningCLE113 min
May 29, 6:52 AM EDTSpecial Marine WarningCLE113 min
May 29, 8:11 AM EDTSpecial Marine WarningCLE2 hr
May 29, 9:49 AM EDTSevere Thunderstorm WarningCLEWayne41 min
May 29, 10:16 AM EDTSevere Thunderstorm WarningCLEStark, Summit44 min
May 29, 10:22 AM EDTSevere Thunderstorm WarningCLEHolmes29 min
May 29, 10:32 AM EDTSevere Thunderstorm WarningCLEPortage43 min
May 29, 10:41 AM EDTSevere Thunderstorm WarningCLETrumbull49 min
May 29, 10:47 AM EDTSevere Thunderstorm WarningCLEAshtabula43 min
May 29, 10:50 AM EDTSevere Thunderstorm WarningCLEMahoning55 min
May 29, 10:55 AM EDTSevere Thunderstorm WarningCLEStark26 min
May 29, 11:22 AM EDTSevere Thunderstorm WarningCLETrumbull38 min

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.