Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 293, NWS Cleveland, OH

November 14, 2011Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Nov 14, 2011, 4:37 PM EST for Erie County, Pennsylvania. It was in force for 68 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: Nov 14, 2011, 4:37 PM EST (21:37 UTC)
Expired: Nov 14, 2011, 5:45 PM EST
In force: 68 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Erie County, PA

The radar

The Buffalo radar (KBUF), 143 km from the middle of the area, began a volume at 21:40 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
Nov 14, 5:21 PM EST	HAIL 0.88	5 N Albion, PA

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
Nov 14, 3:29 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.6 hours before the alert went out and 144 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: 19 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1036 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 294 m²/s²
0-3 km storm-relative helicity: 289 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.

342 
WUUS51 KCLE 142137
SVRCLE
PAC049-142245-
/O.NEW.KCLE.SV.W.0293.111114T2137Z-111114T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
437 PM EST MON NOV 14 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ERIE COUNTY IN NORTHWEST PENNSYLVANIA

* UNTIL 545 PM EST

* AT 435 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 75 MPH.  THIS STORM WAS LOCATED 12 MILES NORTHWEST OF
  GIRARD...AND MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ERIE...
  GIRARD...
  EDINBORO...
  WATERFORD...
  NORTH EAST...
  UNION CITY...
  CORRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE NOW AND STAY AWAY FROM
WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

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 4226 7975 4200 7976 4199 7961 4186 7961
      4185 7984 4185 8051 4197 8052 4199 8051
      4210 8019 4217 8013 4218 8007 4216 8006
      4227 7978
TIME...MOT...LOC 2137Z 264DEG 54KT 4210 8048

$$

MULLEN

1 follow-up statement

100 
WWUS51 KCLE 142245
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
545 PM EST MON NOV 14 2011

PAC049-142254-
/O.EXP.KCLE.SV.W.0293.000000T0000Z-111114T2245Z/
ERIE PA-
545 PM EST MON NOV 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR ERIE COUNTY IN NORTHWEST
PENNSYLVANIA EXPIRES AT 545 PM EST...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE...HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY
RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST MONDAY EVENING
FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4226 7975 4200 7976 4199 7961 4186 7961
      4185 7984 4185 8051 4197 8052 4199 8051
      4210 8019 4217 8013 4218 8007 4216 8006
      4227 7978
TIME...MOT...LOC 2244Z 264DEG 54KT 4220 7913

$$

MITCHELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 14, 4:49 PM EST	Tornado Warning	CLE	Erie	41 min
Nov 14, 5:10 PM EST	Areal Flood Advisory	CLE	Crawford, Erie	6 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 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.