Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 287, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Sep 13, 2011, 6:17 PM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 28 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
- Sep 13, 2011, 6:17 PM EDT (22:17 UTC)
- Expired
- Sep 13, 2011, 6:45 PM EDT
- In force
- 28 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
Counties Crawford County, PA, Erie County, PA
The radar
The Pittsburgh radar (KPBZ), 149 km from the middle of the area, began a volume at 22:20 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 |
|---|---|---|---|
| Sep 13, 6:25 PM EDT | HAIL 1 | Spartansburg, PA | NICKEL TO QUARTER SIZE HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.3 hours before the alert went out and 150 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.
- Mixed-layer CAPE
- 69 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 1273 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
461 WUUS51 KCLE 132217 SVRCLE PAC039-049-132245- /O.NEW.KCLE.SV.W.0287.110913T2217Z-110913T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CLEVELAND OH 617 PM EDT TUE SEP 13 2011 THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA SOUTHEASTERN ERIE COUNTY IN NORTHWEST PENNSYLVANIA * UNTIL 645 PM EDT * AT 614 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR UNION CITY...AND MOVING EAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... SPARTANSBURG... CORRY... 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 4170 7961 4174 7991 4198 7992 4198 7960 TIME...MOT...LOC 2217Z 273DEG 26KT 4182 7977 $$ KIELTYKA
2 follow-up statements
840 WWUS51 KCLE 132228 SVSCLE SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 628 PM EDT TUE SEP 13 2011 PAC039-049-132245- /O.CON.KCLE.SV.W.0287.000000T0000Z-110913T2245Z/ CRAWFORD PA-ERIE PA- 628 PM EDT TUE SEP 13 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR SOUTHEASTERN ERIE AND NORTHEASTERN CRAWFORD COUNTIES IN NORTHWEST PENNSYLVANIA... AT 627 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SPARTANSBURG...OR 27 MILES NORTHEAST OF MEADVILLE...MOVING EAST AT 25 MPH. LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...CORRY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE NOW AND STAY AWAY FROM WINDOWS. && LAT...LON 4170 7961 4174 7991 4198 7992 4198 7960 TIME...MOT...LOC 2228Z 270DEG 20KT 4185 7968 $$ THOMPSON
467 WWUS51 KCLE 132245 SVSCLE SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 645 PM EDT TUE SEP 13 2011 PAC039-049-132255- /O.EXP.KCLE.SV.W.0287.000000T0000Z-110913T2245Z/ CRAWFORD PA-ERIE PA- 645 PM EDT TUE SEP 13 2011 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ERIE AND NORTHEASTERN CRAWFORD COUNTIES IN NORTHWEST PENNSYLVANIA EXPIRES AT 645 PM EDT... LAT...LON 4170 7961 4174 7991 4198 7992 4198 7960 TIME...MOT...LOC 2228Z 270DEG 20KT 4185 7968 $$ THOMPSON
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 6:56 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 64 min |
| Sep 13, 7:01 PM EDT | Areal Flood Advisory | CLE | Crawford | 2 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2011Every 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.