Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 9, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Apr 4, 2011, 9:18 AM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 42 min. 2 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
- Apr 4, 2011, 9:18 AM EDT (13:18 UTC)
- Expired
- Apr 4, 2011, 10:00 AM EDT
- In force
- 42 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
Counties Crawford County, PA, Erie County, PA
The radar
The Pittsburgh radar (KPBZ), 125 km from the middle of the area, began a volume at 13:18 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 |
|---|---|---|---|
| Apr 4, 9:25 AM EDT | TSTM WND DMG | Conneaut Lake, PA | TREE DOWN. |
| Apr 4, 9:35 AM EDT | TSTM WND DMG | Cambridge Springs, PA | ONE TREE 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, 1.3 hours before the alert went out and 137 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1672 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 487 m²/s²
- 0-3 km storm-relative helicity
- 719 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
412
WUUS51 KCLE 041318
SVRCLE
PAC039-049-041400-
/O.NEW.KCLE.SV.W.0009.110404T1318Z-110404T1400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
918 AM EDT MON APR 4 2011
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA
SOUTHERN ERIE COUNTY IN NORTHWEST PENNSYLVANIA
* UNTIL 1000 AM EDT
* AT 915 AM 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 13 MILES SOUTHWEST OF ALBION TO
10 MILES SOUTHWEST OF LINESVILLE TO 18 MILES SOUTHWEST OF
LINESVILLE...AND MOVING EAST AT 65 MPH.
* LOCATIONS IMPACTED INCLUDE...
MEADVILLE...
ALBION...
EDINBORO...
CAMBRIDGE SPRINGS...
WATERFORD...
UNION CITY...
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 7965 4162 7982 4152 7998 4148 8001
4147 8027 4149 8052 4198 8051 4199 7961
4162 7961
TIME...MOT...LOC 1318Z 271DEG 55KT 4181 8052 4154 8047
4143 8055
$$
LAPLANTE1 follow-up statement
184
WWUS51 KCLE 041355
SVSCLE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
955 AM EDT MON APR 4 2011
PAC039-049-041405-
/O.EXP.KCLE.SV.W.0009.000000T0000Z-110404T1400Z/
CRAWFORD PA-ERIE PA-
955 AM EDT MON APR 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ERIE AND CRAWFORD
COUNTIES IN NORTHWEST PENNSYLVANIA EXPIRES AT 1000 AM EDT...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY
AFTERNOON FOR NORTHWESTERN OHIO.
LAT...LON 4161 7965 4162 7982 4152 7998 4148 8001
4147 8027 4149 8052 4198 8051 4199 7961
4162 7961
TIME...MOT...LOC 1355Z 271DEG 55KT 4180 7976 4153 7971
4142 7980
$$
FITZNearby
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.