Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 36, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 24, 2004, 5:22 PM EDT for 4 counties in Pennsylvania. It was in force for 53 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 24, 2004, 5:22 PM EDT (21:22 UTC)
- Expired
- May 24, 2004, 6:15 PM EDT
- In force
- 53 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 106 km from the middle of the area, began a volume at 21:23 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 24, 4:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.4 hours before the alert went out and 124 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
- 15 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 1572 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 242122 SVRPHI PAC011-017-077-091-242215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 522 PM EDT MON MAY 24 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME EAST CENTRAL BERKS COUNTY IN EASTERN PENNSYLVANIA SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA WEST CENTRAL BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA * UNTIL 615 PM EDT * AT 518 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR ANCIENT OAKS...OR ABOUT 10 MILES SOUTHWEST OF ALLENTOWN...AND MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... EMMAUS BY 530 PM EDT EAST GREENVILLE BY 535 PM EDT QUAKERTOWN BY 555 PM EDT PERKASIE AND 7 MILES NORTH OF SOUDERTON BY 605 PM EDT DUBLIN BY 615 PM EDT LAT...LON 4060 7563 4037 7560 4027 7522 4050 7520 $$ RPW
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
| May 24, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 44 min |
| May 24, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 52 min |
| May 24, 6:04 PM EDT | Tornado Warning | PHI | Bucks | 26 min |
| May 24, 6:27 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 63 min |
| May 24, 7:41 PM EDT | Special Marine Warning | PHI | 64 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.