Alert archive / Ohio / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 21, NWS Pittsburgh, PA

May 11, 20154 counties in Ohio; Brooke County, Hancock County, West Virginia

NWS Pittsburgh, PA issued this severe thunderstorm warning at May 11, 2015, 7:54 PM EDT for 4 counties in Ohio; Brooke County, Hancock County, West Virginia. It was in force for 36 min. 2 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 11, 2015, 7:54 PM EDT (23:54 UTC)
Expired
May 11, 2015, 8:30 PM EDT
In force
36 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Carroll County, OH, Columbiana County, OH, Harrison County, OH, Jefferson County, OH, Brooke County, WV, Hancock County, WV

The radar

The Pittsburgh radar (KPBZ), 53 km from the middle of the area, began a volume at 23:53 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 11, 8:11 PM EDTTSTM WND DMG1 Nw Sunshine Park, OHTREES DOWN
May 11, 8:17 PM EDTTSTM WND DMGWeirton, WVTREES 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 11, 5:47 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 11.9 hours before the alert went out and 62 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 2015-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 30 joules per kilogram.LCLLFCEL10008507005003002001001 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 2015-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
30 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1342 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
73 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.

779 
WUUS51 KPBZ 112354
SVRPBZ
OHC019-029-067-081-WVC009-029-120030-
/O.NEW.KPBZ.SV.W.0021.150511T2354Z-150512T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
754 PM EDT MON MAY 11 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY IN EAST CENTRAL OHIO...
  SOUTHEASTERN COLUMBIANA COUNTY IN EAST CENTRAL OHIO...
  NORTHEASTERN HARRISON COUNTY IN EAST CENTRAL OHIO...
  SOUTHEASTERN CARROLL COUNTY IN EAST CENTRAL OHIO...
  HANCOCK COUNTY IN NORTHERN WEST VIRGINIA...
  NORTH CENTRAL BROOKE COUNTY IN NORTHERN WEST VIRGINIA...

* UNTIL 830 PM EDT

* AT 754 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CADIZ...
  MOVING NORTHEAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  WEIRTON...STEUBENVILLE...EAST LIVERPOOL...WELLSVILLE...CADIZ...
  TORONTO...CALCUTTA...WINTERSVILLE...CHESTER...NEW CUMBERLAND...
  SALINEVILLE...HOPEDALE...NEWELL...JEWETT...BERGHOLZ...AMSTERDAM...
  RICHMOND...IRONDALE...NEW MANCHESTER AND EMPIRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 412-262-1988...POSTING TO THE
NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH. 

&&

LAT...LON 4026 8100 4052 8113 4076 8053 4040 8052
TIME...MOT...LOC 2354Z 235DEG 44KT 4037 8102 

HAIL...<.75IN
WIND...60MPH
 
$$
15
1 follow-up statement
685 
WWUS51 KPBZ 120014
SVSPBZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
814 PM EDT MON MAY 11 2015

OHC067-120023-
/O.CAN.KPBZ.SV.W.0021.000000T0000Z-150512T0030Z/
HARRISON OH-
814 PM EDT MON MAY 11 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HARRISON COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT FOR
EAST CENTRAL OHIO AND NORTHERN WEST VIRGINIA.

LAT...LON 4076 8053 4040 8052 4030 8087 4042 8086
      4043 8100 4057 8101
TIME...MOT...LOC 0013Z 235DEG 44KT 4051 8076 

$$

OHC019-029-081-WVC009-029-120030-
/O.CON.KPBZ.SV.W.0021.000000T0000Z-150512T0030Z/
JEFFERSON OH-COLUMBIANA OH-CARROLL OH-HANCOCK WV-BROOKE WV-
814 PM EDT MON MAY 11 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR JEFFERSON...SOUTHEASTERN COLUMBIANA...SOUTHEASTERN CARROLL...
HANCOCK AND NORTH CENTRAL BROOKE COUNTIES...

AT 813 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES WEST OF NEW
CUMBERLAND...OR 8 MILES SOUTHWEST OF WELLSVILLE...MOVING NORTHEAST AT
50 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
WEIRTON...STEUBENVILLE...EAST LIVERPOOL...WELLSVILLE...TORONTO...
CALCUTTA...WINTERSVILLE...CHESTER...NEW CUMBERLAND...SALINEVILLE...
NEWELL...BERGHOLZ...AMSTERDAM...RICHMOND...IRONDALE...NEW
MANCHESTER...EMPIRE...STRATTON...BLOOMINGDALE AND UNIONPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

PLEASE REPORT SEVERE WEATHER BY CALLING 412-262-1988...POSTING TO THE
NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH. 

&&

LAT...LON 4076 8053 4040 8052 4030 8087 4042 8086
      4043 8100 4057 8101
TIME...MOT...LOC 0013Z 235DEG 44KT 4051 8076 

HAIL...<.75IN
WIND...60MPH
 
$$

33

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 11, 5:44 PM EDTSevere Thunderstorm WarningPBZCoshocton, Muskingum46 min
May 11, 6:29 PM EDTSevere Thunderstorm WarningPBZCoshocton, Guernsey, Muskingum, Tuscarawas31 min
May 11, 6:31 PM EDTSevere Thunderstorm WarningPBZGuernsey, Muskingum, Noble44 min
May 11, 6:54 PM EDTSpecial Weather StatementPBZCarroll, Tuscarawas36 min
May 11, 7:05 PM EDTSevere Thunderstorm WarningPBZCarroll, Columbiana, Harrison, Jefferson, Tuscarawas40 min
May 11, 7:13 PM EDTSpecial Weather StatementPBZBelmont, Guernsey, Harrison, Monroe, Noble47 min
May 11, 7:46 PM EDTSpecial Weather StatementPBZHarrison, Jefferson29 min
May 11, 7:46 PM EDTSevere Thunderstorm WarningPBZColumbiana29 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2015Severe Thunderstorm Warnings in West Virginia, 2015Every severe thunderstorm warning in 2015

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.