Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 21, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 10, 2004, 5:31 PM EDT for Warren County, Pennsylvania. It was in force for 59 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 10, 2004, 5:31 PM EDT (21:31 UTC)
- Expired
- May 10, 2004, 6:30 PM EDT
- In force
- 59 min
- Issued by
- NWS State College, PA
- Area
- Counties, with a storm outline in the text
County Warren County, PA
The radar
The Buffalo radar (KBUF), 133 km from the middle of the area, began a volume at 21:33 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 nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.5 hours before the alert went out and 132 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
- 757 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
661
WUUS51 KCTP 102131
SVRCTP
PAC123-102230-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
527 PM EDT MON MAY 10 2004
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WARREN COUNTY IN NORTH CENTRAL PENNSYLVANIA
* UNTIL 630 PM EDT
* AT 527 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS FROM YOUNGSVILLE TO 8 MILES NORTHWEST OF GRAND
VALLEY...MOVING SOUTHEAST AT 20 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
YOUNGSVILLE AROUND 535 PM EDT...
RUSSELL AND GRAND VALLEY AROUND 540 PM EDT...
WARREN AROUND 550 PM EDT...
GERMANY AROUND 555 PM EDT...
KINZUA DAM AND CHAPMAN STATE PARK AROUND 605 PM EDT...
SHEFFIELD AROUND 630 PM EDT...
THESE ARE DANGEROUS STORMS. WIND GUSTS FROM THIS SEVERE THUNDERSTORM
HAVE ALREADY DOWNED TREES IN CORRY IN ERIE COUNTY. IF YOU ARE IN THE
PATH OF THIS STORM...MOVE TO A SUBSTANTIAL SHELTER NOW
LARGE HAIL AND FREQUENT...DANGEROUS LIGHTNING ARE EXPECTED WITH
THESE STORMS. IN ADDITION...VERY HEAVY RAIN WILL FALL...WITH
RAINFALL RATES OF UP TO ONE INCH PER HOUR... AND POSSIBLY CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.
LAT...LON 4195 7894 4199 7960 4180 7966 4164 7958
4165 7904
GARTNER/RXR/CRUZ
$$
&The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 9:20 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| May 10, 12:09 AM EDT | Flash Flood Warning | CTP | York | 3 hr |
| May 10, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 66 min |
| May 10, 7:04 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 56 min |
| May 10, 7:38 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 37 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.