Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 49, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 21, 2004, 7:30 PM EDT for Bedford County, Blair County, Pennsylvania. It was in force for 60 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 21, 2004, 7:30 PM EDT (23:30 UTC)
- Expired
- May 21, 2004, 8:30 PM EDT
- In force
- 60 min
- Issued by
- NWS State College, PA
- Area
- Counties, with a storm outline in the text
Counties Bedford County, PA, Blair County, PA
The radar
The State College radar (KCCX), 89 km from the middle of the area, began a volume at 23:31 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 21, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 11.5 hours before the alert went out and 142 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
- 873 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -197 m²/s²
- 0-3 km storm-relative helicity
- -213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
948
WUUS51 KCTP 212330
SVRCTP
PAC009-013-220030-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
730 PM EDT FRI MAY 21 2004
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BEDFORD COUNTY IN SOUTH CENTRAL PENNSYLVANIA
BLAIR COUNTY IN CENTRAL PENNSYLVANIA
* UNTIL 830 PM EDT
* AT 730 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS FROM 18 MILES NORTHWEST OF HORSESHOE
CURVE TO 26 MILES WEST OF LAKE GORDON...MOVING SOUTHEAST AT 45 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
HORSESHOE CURVE AROUND 740 PM EDT...
BELLWOOD AND SKI GAP AROUND 745 PM EDT...
SINKING VALLEY AND ROARING SPRING AROUND 750 PM EDT...
ROYER AND LAKE GORDON AROUND 755 PM EDT...
WILLIAMSBURG AND NEW ENTERPRISE AROUND 800 PM EDT...
EVERETT AROUND 805 PM EDT...
THIS IS A DANGEROUS STORM WIND GUSTS FROM THIS SEVERE THUNDERSTORM
HAVE ALREADY DOWNED TREES IN SOMERSET AND CAMBRIA COUNTIES IF YOU
ARE IN THE PATH OF THIS STORM...MOVE TO A SUBSTANTIAL SHELTER NOW
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772.
LAT...LON 4002 7876 4042 7857 4061 7844 4057 7819
4046 7814 4026 7830 4012 7817 3972 7837
3972 7875
$$
&The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 10:51 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 54 min |
| May 20, 11:18 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 72 min |
| May 20, 11:48 PM EDT | Flash Flood Warning | CTP | Clearfield | 6 hr |
| May 21, 4:54 AM EDT | Flash Flood Warning | CTP | Clearfield | 4 hr |
| May 21, 5:19 AM EDT | Flash Flood Warning | CTP | Warren | 4 hr |
| May 21, 6:29 AM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 61 min |
| May 21, 6:31 AM EDT | Flash Flood Warning | CTP | Blair | 4 hr |
| May 21, 7:11 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair | 49 min |
| May 21, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield, Somerset | 80 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2004Every severe thunderstorm warning in 2004
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.