Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 274, NWS Cleveland, OH

August 25, 2011Mahoning County, Trumbull County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 25, 2011, 1:09 AM EDT for Mahoning County, Trumbull County, Ohio. It was in force for 66 min. 4 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: Aug 25, 2011, 1:09 AM EDT (05:09 UTC)
Expired: Aug 25, 2011, 2:15 AM EDT
In force: 66 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Mahoning County, OH, Trumbull County, OH

The radar

The Pittsburgh radar (KPBZ), 75 km from the middle of the area, began a volume at 05:09 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
Aug 25, 1:25 AM EDT	TSTM WND DMG	Champion Heights, OH	TREES AND POWERLINES DOWN.
Aug 25, 1:30 AM EDT	TSTM WND GST 61	Bristolville, OH
Aug 25, 1:35 AM EDT	TSTM WND DMG	Brookfield Center, OH	TREES AND POWERLINES DOWN.
Aug 25, 1:35 AM EDT	TSTM WND DMG	Kinsman, OH	TREES AND POWERLINES 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.

Issued	Product	Office	Lasted
Aug 24, 9:18 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 24, 10:27 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 5.2 hours before the alert went out and 91 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: 1205 J/kg
Mixed-layer CIN: -258 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

437 
WUUS51 KCLE 250509
SVRCLE
OHC099-155-250615-
/O.NEW.KCLE.SV.W.0274.110825T0509Z-110825T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
109 AM EDT THU AUG 25 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 215 AM EDT

* AT 105 AM 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 10 MILES NORTH OF NORTH
  BLOOMFIELD TO 16 MILES NORTHWEST OF SEBRING...AND MOVING EAST AT 60
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  WARREN...
  YOUNGSTOWN...
  BRISTOLVILLE...
  NEWTON FALLS...
  SEBRING...
  LORDSTOWN...
  CORTLAND...
  KINSMAN...
  NILES...
  CANFIELD...

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 4089 8052 4090 8081 4093 8084 4093 8090
      4090 8090 4091 8109 4098 8109 4099 8100
      4150 8100 4150 8052 4108 8051
TIME...MOT...LOC 0509Z 281DEG 54KT 4157 8086 4107 8117

$$

LAPLANTE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 9:52 PM EDT	Special Marine Warning	CLE		113 min
Aug 24, 10:11 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Wood	64 min
Aug 24, 11:04 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky	41 min
Aug 24, 11:07 PM EDT	Severe Thunderstorm Warning	CLE	Hancock	53 min
Aug 24, 11:13 PM EDT	Areal Flood Advisory	CLE	Hancock, Lucas, Sandusky, Seneca, Wood	3 hr
Aug 24, 11:14 PM EDT	Severe Thunderstorm Warning	CLE	Seneca, Wood	61 min
Aug 24, 11:27 PM EDT	Special Marine Warning	CLE		2 hr
Aug 24, 11:30 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Lake	75 min
Aug 24, 11:31 PM EDT	Severe Thunderstorm Warning	CLE	Wyandot	44 min
Aug 24, 11:35 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron	40 min
Aug 24, 11:49 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Lorain, Medina	71 min
Aug 24, 11:53 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Marion	42 min
Aug 25, 12:01 AM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	59 min
Aug 25, 12:26 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit, Wayne	79 min
Aug 25, 12:32 AM EDT	Areal Flood Advisory	CLE	Ashtabula, Geauga, Lake	3 hr
Aug 25, 12:41 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Lake	79 min
Aug 25, 1:12 AM EDT	Severe Thunderstorm Warning	CLE	Stark	48 min
Aug 25, 1:27 AM EDT	Tornado Warning	CLE	Trumbull	25 min
Aug 25, 1:31 AM EDT	Areal Flood Warning	CLE	Ashtabula	3 hr
Aug 25, 1:36 AM EDT	Areal Flood Advisory	CLE	Mahoning, Trumbull	3 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Every severe thunderstorm warning in 2011

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.