Alert archive / Pennsylvania / Tornado Warnings in 2011

Tornado Warning 14, NWS Cleveland, OH

May 25, 2011Erie County, Pennsylvania

NWS Cleveland, OH issued this tornado warning at May 25, 2011, 8:34 PM EDT for Erie County, Pennsylvania. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 25, 2011, 8:34 PM EDT (00:34 UTC)
Expired
May 25, 2011, 9:30 PM EDT
In force
56 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 00:37 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 25, 1:55 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.6 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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, Buffalo Intl Airport, NY at 00:00Z on 2011-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 square meters per square second.193958Sfc1 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
14 J/kg
Mixed-layer CIN
-176 J/kg
Mixed-layer LCL
1239 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
471 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.

577 
WFUS51 KCLE 260034
TORCLE
PAC049-260130-
/O.NEW.KCLE.TO.W.0014.110526T0034Z-110526T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
834 PM EDT WED MAY 25 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
  ERIE COUNTY IN NORTHWEST PENNSYLVANIA

* UNTIL 930 PM EDT

* AT 830 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR CONNEAUT...OR 15 MILES EAST OF ASHTABULA...
  AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALBION...
  GIRARD...
  ERIE...
  NORTH EAST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR CLOSET.

&&

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE. 1-877-633-6772. WHEN YOU CAN DO SO SAFELY.

LAT...LON 4201 7977 4186 8040 4185 8052 4199 8051
      4211 8018 4216 8014 4217 8010 4215 8008
      4215 8004 4222 7993 4222 7990 4223 7989
      4223 7985 4227 7976
TIME...MOT...LOC 0034Z 250DEG 33KT 4195 8047

$$

LAPLANTE
2 follow-up statements
591 
WWUS51 KCLE 260055
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
855 PM EDT WED MAY 25 2011

PAC049-260130-
/O.CON.KCLE.TO.W.0014.000000T0000Z-110526T0130Z/
ERIE PA-
855 PM EDT WED MAY 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR ERIE
COUNTY IN NORTHWEST PENNSYLVANIA...

AT 851 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A POSSIBLE TORNADO. THIS POSSIBLE TORNADO WAS LOCATED NEAR
GIRARD...OR 13 MILES SOUTHWEST OF ERIE...MOVING NORTHEAST AT 50 MPH.

AT 832 PM EDT...A SPOTTER REPORTED A WATERSPOUT NEAR LAKE CITY.

LOCATIONS NEAR THE PATH OF THE  POSSIBLE TORNADO INCLUDE...ERIE AND
NORTH EAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. OTHERWISE...SEEK
SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR
ROOM SUCH AS A CLOSET.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT WEDNESDAY EVENING
FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4201 7977 4186 8040 4202 8041 4211 8018
      4216 8014 4217 8010 4215 8008 4215 8004
      4222 7993 4222 7990 4223 7989 4223 7985
      4227 7976
TIME...MOT...LOC 0055Z 243DEG 42KT 4207 8026

$$

LAPLANTE
810 
WWUS51 KCLE 260136
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
936 PM EDT WED MAY 25 2011

PAC049-260146-
/O.EXP.KCLE.TO.W.0014.000000T0000Z-110526T0130Z/
ERIE PA-
936 PM EDT WED MAY 25 2011

...THE TORNADO WARNING FOR ERIE COUNTY IN NORTHWEST PENNSYLVANIA
EXPIRES AT 930 PM EDT...

LAT...LON 4201 7977 4186 8040 4202 8041 4211 8018
      4216 8014 4217 8010 4215 8008 4215 8004
      4222 7993 4222 7990 4223 7989 4223 7985
      4227 7976
TIME...MOT...LOC 0055Z 243DEG 42KT 4207 8026

$$

THOMPSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 8:17 PM EDTAreal Flood WarningCLECrawford, Erie10 hr
May 25, 8:37 PM EDTSevere Thunderstorm WarningCLECrawford, Erie53 min
May 25, 9:25 PM EDTSevere Thunderstorm WarningCLECrawford, Erie35 min
May 26, 12:53 AM EDTSevere Thunderstorm WarningCLECrawford67 min
May 26, 11:02 AM EDTFlood WatchCLECrawford, Erie11 hr
May 26, 4:39 PM EDTSevere Thunderstorm WarningCLECrawford, Erie66 min
May 26, 4:53 PM EDTTornado WarningCLECrawford, Erie52 min
May 26, 4:54 PM EDTAreal Flood WarningCLEErie4 hr

Nearby

Tornado Warnings in Pennsylvania, 2011Every tornado warning in 2011Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.