Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 185, NWS Cleveland, OH

September 22, 2012Mahoning County, Trumbull County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 22, 2012, 5:43 PM EDT for Mahoning County, Trumbull County, Ohio. It was in force for 30 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: Sep 22, 2012, 5:43 PM EDT (21:43 UTC)
Expired: Sep 22, 2012, 6:13 PM EDT
In force: 30 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Mahoning County, OH, Trumbull County, OH

The radar

The Pittsburgh radar (KPBZ), 70 km from the middle of the area, began a volume at 21:44 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
Sep 22, 5:43 PM EDT	TSTM WND DMG	Warren, OH	A FEW TREES DOWN.

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, 9.7 hours before the alert went out and 87 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: 47 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 534 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 176 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

463 
WUUS51 KCLE 222143
SVRCLE
OHC099-155-222230-
/O.NEW.KCLE.SV.W.0185.120922T2143Z-120922T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
543 PM EDT SAT SEP 22 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 630 PM EDT

* AT 541 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM CORTLAND TO HUBBARD TO
  CANFIELD...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  YOUNGSTOWN...
  CANFIELD...
  HUBBARD...
  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 4091 8083 4093 8084 4093 8092 4144 8076
      4143 8051 4090 8051 4090 8052 4090 8082
TIME...MOT...LOC 2143Z 269DEG 25KT 4132 8063 4120 8063
          4105 8082

$$

KIELTYKA

1 follow-up statement

342 
WWUS51 KCLE 222213
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
613 PM EDT SAT SEP 22 2012

OHC099-155-222223-
/O.CAN.KCLE.SV.W.0185.000000T0000Z-120922T2230Z/
MAHONING OH-TRUMBULL OH-
613 PM EDT SAT SEP 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN TRUMBULL AND MAHONING
COUNTIES IS CANCELLED...

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

LAT...LON 4091 8083 4093 8084 4093 8092 4144 8076
      4143 8051 4090 8051 4090 8052 4090 8082
TIME...MOT...LOC 2213Z 269DEG 25KT 4132 8035 4120 8035
          4105 8054

$$

WILLARD

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 21, 10:07 PM EDT	Small Craft Advisory	CLE		47 hr
Sep 22, 4:27 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	63 min
Sep 22, 4:54 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Trumbull	49 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.