Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 52, NWS Cleveland, OH

May 29, 2012Mahoning County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 29, 2012, 10:50 AM EDT for Mahoning County, Ohio. It was in force for 55 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 29, 2012, 10:50 AM EDT (14:50 UTC)
Expired
May 29, 2012, 11:45 AM EDT
In force
55 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Mahoning County, OH

The radar

The Pittsburgh radar (KPBZ), 76 km from the middle of the area, began a volume at 14:50 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, 11:40 AM EDTTSTM WND DMGBoardman, OHLARGE TREE AND LIMBS DOWN.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 29, 10:27 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 2.8 hours before the alert went out and 93 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.

018 
WUUS51 KCLE 291450
SVRCLE
OHC099-291545-
/O.NEW.KCLE.SV.W.0052.120529T1450Z-120529T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1050 AM EDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 1145 AM EDT

* AT 1045 AM 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 10
  MILES WEST OF SEBRING...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  YOUNGSTOWN...
  SEBRING...
  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 4099 8109 4099 8100 4113 8100 4114 8099
      4113 8051 4090 8052 4090 8082 4093 8083
      4093 8089 4090 8090 4090 8109
TIME...MOT...LOC 1450Z 237DEG 29KT 4090 8116

$$

LAPLANTE
2 follow-up statements
218 
WWUS51 KCLE 291519
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1119 AM EDT TUE MAY 29 2012

OHC099-291545-
/O.CON.KCLE.SV.W.0052.000000T0000Z-120529T1545Z/
MAHONING OH-
1119 AM EDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR MAHONING COUNTY...

AT 1118 AM 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
6 MILES SOUTHEAST OF CRAIG BEACH...OR 10 MILES NORTHWEST OF SALEM...
MOVING NORTHEAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
CANFIELD...AUSTINTOWN AND YOUNGSTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR NORTHEAST OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4099 8109 4099 8100 4113 8100 4114 8099
      4113 8051 4090 8052 4090 8082 4093 8083
      4093 8089 4090 8090 4090 8109
TIME...MOT...LOC 1518Z 226DEG 28KT 4103 8093

$$

SJAMISON
463 
WWUS51 KCLE 291538
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1138 AM EDT TUE MAY 29 2012

OHC099-291549-
/O.EXP.KCLE.SV.W.0052.000000T0000Z-120529T1545Z/
MAHONING OH-
1138 AM EDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR MAHONING COUNTY EXPIRES AT
1145 AM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR NORTHEAST OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4099 8109 4099 8100 4113 8100 4114 8099
      4113 8051 4090 8052 4090 8082 4093 8083
      4093 8089 4090 8090 4090 8109
TIME...MOT...LOC 1539Z 254DEG 22KT 4102 8078

$$

SJAMISON

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, 10:55 AM EDTSevere Thunderstorm WarningCLEStark26 min
May 29, 11:22 AM EDTSevere Thunderstorm WarningCLETrumbull38 min
May 29, 5:56 PM EDTSevere Thunderstorm WarningCLEMahoning38 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.