Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 134, NWS Cleveland, OH

July 26, 2012Crawford County, Erie County, Pennsylvania; Ashtabula County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 26, 2012, 1:15 PM EDT for Crawford County, Erie County, Pennsylvania; Ashtabula County, Ohio. It was in force for 60 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: Jul 26, 2012, 1:15 PM EDT (17:15 UTC)
Expired: Jul 26, 2012, 2:15 PM EDT
In force: 60 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), 152 km from the middle of the area, began a volume at 17:16 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 26, 1:34 PM EDT	TSTM WND DMG	Edinboro, PA	TREES AND LARGE LIMBS 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, 5.3 hours before the alert went out and 165 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: 2136 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 284 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 13.9

Open this sounding in Storm Lab

The text

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

946 
WUUS51 KCLE 261715
SVRCLE
OHC007-PAC039-049-261815-
/O.NEW.KCLE.SV.W.0134.120726T1715Z-120726T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
115 PM EDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 215 PM EDT

* AT 106 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
  THUNDERSTORMS PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ERIE TO 6 MILES
  NORTH OF JEFFERSON...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALBION...
  WATERFORD...
  EDINBORO...
  UNION CITY...
  CAMBRIDGE SPRINGS...
  CORRY...
  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 4168 8052 4162 8100 4163 8100 4216 8006
      4220 7997 4220 7975 4201 7975 4201 7961
      4200 7960 4169 7961
TIME...MOT...LOC 1714Z 271DEG 47KT 4215 7993 4182 8060

$$

LOMBARDY

2 follow-up statements

654 
WWUS51 KCLE 261748
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
148 PM EDT THU JUL 26 2012

OHC007-261755-
/O.CAN.KCLE.SV.W.0134.000000T0000Z-120726T1815Z/
ASHTABULA OH-
148 PM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ASHTABULA COUNTY IS
CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4171 8022 4187 8022 4198 8022 4216 8006
      4220 7997 4220 7975 4201 7975 4201 7961
      4200 7960 4169 7961
TIME...MOT...LOC 1745Z 298DEG 35KT 4204 7941 4172 8008

$$

PAC039-049-261815-
/O.CON.KCLE.SV.W.0134.000000T0000Z-120726T1815Z/
CRAWFORD PA-ERIE PA-
148 PM EDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR ERIE AND NORTHEASTERN CRAWFORD COUNTIES IN NORTHWEST
PENNSYLVANIA...

AT 142 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG 
A LINE EXTENDING FROM 13 MILES NORTHEAST OF CORRY TO 6 MILES 
SOUTHWEST OF CAMBRIDGE SPRINGS...MOVING SOUTHEAST AT 40 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
SPARTANSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4171 8022 4187 8022 4198 8022 4216 8006
      4220 7997 4220 7975 4201 7975 4201 7961
      4200 7960 4169 7961
TIME...MOT...LOC 1745Z 298DEG 35KT 4204 7941 4172 8008

$$

MITCHELL

329 
WWUS51 KCLE 261810
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
210 PM EDT THU JUL 26 2012

PAC039-049-261820-
/O.EXP.KCLE.SV.W.0134.000000T0000Z-120726T1815Z/
CRAWFORD PA-ERIE PA-
210 PM EDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR ERIE AND NORTHEASTERN CRAWFORD
COUNTIES IN NORTHWEST PENNSYLVANIA EXPIRES AT 215 PM EDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4171 8022 4187 8022 4198 8022 4216 8006
      4220 7997 4220 7975 4201 7975 4201 7961
      4200 7960 4169 7961
TIME...MOT...LOC 1810Z 298DEG 35KT 4192 7912 4161 7979

$$

MITCHELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 1:21 PM EDT	Tornado Warning	CLE	Crawford	24 min
Jul 26, 1:50 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	40 min
Jul 25, 10:05 PM EDT	Small Craft Advisory	CLE		22 hr
Jul 26, 2:55 AM EDT	Special Marine Warning	CLE		110 min
Jul 26, 1:00 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Trumbull	45 min
Jul 26, 1:12 PM EDT	Severe Thunderstorm Warning	CLE	Portage, Summit	48 min
Jul 26, 1:38 PM EDT	Severe Thunderstorm Warning	CLE	Wayne	52 min
Jul 26, 1:58 PM EDT	Severe Thunderstorm Warning	CLE	Stark	47 min
Jul 26, 2:28 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning	47 min
Jul 26, 3:10 PM EDT	Severe Thunderstorm Warning	CLE	Summit	50 min
Jul 26, 3:53 PM EDT	Severe Thunderstorm Warning	CLE	Knox, Morrow	52 min
Jul 26, 4:01 PM EDT	Severe Thunderstorm Warning	CLE	Knox	44 min
Jul 26, 4:49 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	41 min
Jul 26, 5:35 PM EDT	Special Marine Warning	CLE		85 min
Jul 26, 5:37 PM EDT	Areal Flood Advisory	CLE	Medina, Summit	3 hr
Jul 26, 5:53 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Lorain	36 min
Jul 26, 5:55 PM EDT	Severe Thunderstorm Warning	CLE	Portage	37 min
Jul 26, 6:16 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning	35 min
Jul 26, 6:46 PM EDT	Special Marine Warning	CLE		52 min
Jul 26, 6:50 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga, Lake	40 min
Jul 26, 7:33 PM EDT	River Flood Warning	CLE	Geauga, Portage, Summit	2 hr

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.