Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 162, NWS Cleveland, OH

August 8, 2012Mahoning County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 8, 2012, 6:47 PM EDT for Mahoning County, Ohio. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 8, 2012, 6:47 PM EDT (22:47 UTC)
Expired
Aug 8, 2012, 7:16 PM EDT
In force
29 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Mahoning County, OH

The radar

The Pittsburgh radar (KPBZ), 60 km from the middle of the area, began a volume at 22:49 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.

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 10.8 hours before the alert went out and 77 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 2012-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2012-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1688 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

929 
WUUS51 KCLE 082247
SVRCLE
OHC099-082330-
/O.NEW.KCLE.SV.W.0162.120808T2247Z-120808T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
647 PM EDT WED AUG 8 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 730 PM EDT

* AT 644 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
  BOARDMAN...AND MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
RURAL SOUTHEASTERN MAHONING COUNTY

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 4090 8074 4091 8075 4114 8064 4113 8052
      4108 8051 4090 8051 4090 8052
TIME...MOT...LOC 2247Z 285DEG 14KT 4096 8063

$$

KING
1 follow-up statement
056 
WWUS51 KCLE 082316
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
716 PM EDT WED AUG 8 2012

OHC099-082326-
/O.CAN.KCLE.SV.W.0162.000000T0000Z-120808T2330Z/
MAHONING OH-
716 PM EDT WED AUG 8 2012

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

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

LAT...LON 4090 8074 4091 8075 4114 8064 4113 8052
      4108 8051 4090 8051 4090 8052
TIME...MOT...LOC 2316Z 285DEG 14KT 4093 8048

$$

JMAYERS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 3:29 PM EDTSevere Thunderstorm WarningCLEAshtabula31 min
Aug 8, 5:40 PM EDTAreal Flood AdvisoryCLEWayne98 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.