Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 97, NWS Cleveland, OH

July 3, 2012Crawford County, Erie County, Pennsylvania; Ashtabula County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 3, 2012, 8:00 PM EDT for Crawford County, Erie County, Pennsylvania; Ashtabula County, Ohio. It was in force for 45 min. 7 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: Jul 3, 2012, 8:00 PM EDT (00:00 UTC)
Expired: Jul 3, 2012, 8:45 PM EDT
In force: 45 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Ashtabula County, OH, Crawford County, PA, Erie County, PA

The radar

The Pittsburgh radar (KPBZ), 139 km from the middle of the area, began a volume at 00:02 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
Jul 3, 8:01 PM EDT	HAIL 1	Edinboro, PA
Jul 3, 8:05 PM EDT	TSTM WND DMG	4 Sw Albion, PA	ROADS CLOSED DUE TO TREES DOWN.
Jul 3, 8:14 PM EDT	TSTM WND DMG	Cambridge Springs, PA	TREES DOWN.
Jul 3, 8:15 PM EDT	TSTM WND DMG	Cambridge Springs, PA	6-8 INCH DIAMETER TREES DOWN AND WIDESPREAD POWER OUTAGE.
Jul 3, 8:15 PM EDT	TSTM WND GST 65	2 S Edinboro, PA
Jul 3, 8:25 PM EDT	TSTM WND DMG	Meadville, PA	6 INCH DIAMETER TREES DOWN.
Jul 3, 8:41 PM EDT	HAIL 0.75	5 N Meadville, PA

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 00:00Z, 0.0 hours before the alert went out and 151 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: 389 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1500 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

247 
WUUS51 KCLE 040000
SVRCLE
OHC007-PAC039-049-040045-
/O.NEW.KCLE.SV.W.0097.120704T0000Z-120704T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
800 PM EDT TUE JUL 3 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ASHTABULA COUNTY IN NORTHEAST OHIO
  CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA
  ERIE COUNTY IN NORTHWEST PENNSYLVANIA

* UNTIL 845 PM EDT

* AT 757 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 7 MILES NORTH OF WATERFORD TO 6
  MILES NORTH OF JEFFERSON...AND MOVING SOUTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MEADVILLE...
  WATERFORD...
  EDINBORO...
  ANDOVER...
  CORRY...
  UNION CITY...
  LINESVILLE...
  CAMBRIDGE SPRINGS...
  SPARTANSBURG...

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 4161 7968 4161 7982 4155 7991 4147 8016
      4148 8048 4182 8094 4210 7992 4203 7975
      4200 7975 4201 7967 4198 7960 4164 7961
TIME...MOT...LOC 0001Z 295DEG 40KT 4202 7992 4181 8070

$$

ADAMS

2 follow-up statements

191 
WWUS51 KCLE 040025
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
825 PM EDT TUE JUL 3 2012

OHC007-PAC039-049-040045-
/O.CON.KCLE.SV.W.0097.000000T0000Z-120704T0045Z/
CRAWFORD PA-ASHTABULA OH-ERIE PA-
825 PM EDT TUE JUL 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EASTERN ASHTABULA COUNTY IN NORTHEAST OHIO...AND SOUTHERN ERIE
AND CRAWFORD COUNTIES IN NORTHWEST PENNSYLVANIA...

AT 821 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE 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 CORRY TO CAMBRIDGE SPRINGS TO 16
MILES NORTHWEST OF ANDOVER...MOVING SOUTHEAST AT 40 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...CORRY...
SPARTANSBURG...ANDOVER...MEADVILLE...LINESVILLE AND TITUSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

&&

LAT...LON 4198 7992 4198 7980 4197 7974 4196 7969
      4195 7962 4164 7961 4161 7968 4161 7982
      4155 7991 4147 8016 4148 8048 4184 8086
      4185 8083
TIME...MOT...LOC 0025Z 295DEG 40KT 4194 7968 4173 7998
          4177 8070

$$

ADAMS

933 
WWUS51 KCLE 040049
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
849 PM EDT TUE JUL 3 2012

OHC007-PAC039-049-040058-
/O.EXP.KCLE.SV.W.0097.000000T0000Z-120704T0045Z/
CRAWFORD PA-ASHTABULA OH-ERIE PA-
849 PM EDT TUE JUL 3 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ASHTABULA COUNTY IN
NORTHEAST OHIO...AND SOUTHERN ERIE AND CRAWFORD COUNTIES IN NORTHWEST
PENNSYLVANIA EXPIRED AT 845 PM EDT...

..HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE 
WITH THESE THUNDERSTORMS IN SOUTHERN CRAWFORD AND SOUTHEAST 
ASHTABULA COUNTIES.

LAT...LON 4198 7992 4198 7980 4197 7974 4196 7969
      4195 7962 4164 7961 4161 7968 4161 7982
      4155 7991 4147 8016 4148 8048 4184 8086
      4185 8083
TIME...MOT...LOC 0025Z 295DEG 40KT 4194 7968 4173 7998
          4177 8070

$$

ADAMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 2:09 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	51 min
Jul 3, 8:27 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Lake	63 min
Jul 3, 8:56 PM EDT	Severe Thunderstorm Warning	CLE	Trumbull	64 min
Jul 3, 9:17 PM EDT	Areal Flood Advisory	CLE	Geauga, Lake	3 hr
Jul 3, 10:18 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Portage, Stark, Summit, Trumbull	57 min
Jul 3, 10:57 PM EDT	Tornado Warning	CLE	Mahoning, Stark	27 min
Jul 4, 12:03 AM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Portage, Trumbull	57 min
Jul 4, 12:12 AM EDT	Severe Thunderstorm Warning	CLE	Portage, Stark, Summit	63 min
Jul 4, 12:45 AM EDT	Tornado Warning	CLE	Mahoning, Portage	45 min
Jul 4, 9:51 AM EDT	Special Marine Warning	CLE		84 min
Jul 4, 9:53 AM EDT	Excessive Heat Warning	CLE	Hancock, Lucas, Wood	11 hr
Jul 4, 6:34 PM EDT	Special Marine Warning	CLE		116 min
Jul 4, 7:09 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Lucas, Ottawa, Sandusky	51 min
Jul 4, 7:57 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Hancock, Marion, Wood, Wyandot	48 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2012 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.