Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 144, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 14, 2005, 10:38 PM EDT for Chester County, Pennsylvania. It was in force for 52 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
- Aug 14, 2005, 10:38 PM EDT (02:38 UTC)
- Expired
- Aug 14, 2005, 11:30 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
County Chester County, PA
The radar
The Dover AFB radar (KDOX), 127 km from the middle of the area, began a volume at 02:41 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.6 hours before the alert went out and 160 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
- 2485 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1376 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 36 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 150238 SVRPHI PAC029-150330- /O.NEW.KPHI.SV.W.0144.050815T0238Z-050815T0330Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1038 PM EDT SUN AUG 14 2005 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA * UNTIL 1130 PM EDT * AT 1036 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES NORTHWEST OF OXFORD...OR ABOUT 17 MILES SOUTHEAST OF LANCASTER...AND MOVING EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... OXFORD BY 1050 PM EDT PARKESBURG BY 1055 PM EDT WEST GROVE AND COATESVILLE BY 1105 PM EDT DOWNINGTOWN BY 1115 PM EDT IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 3995 7618 3977 7620 3974 7581 4003 7559 $$ EBERWINE
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:31 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 44 min |
| Aug 14, 9:32 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 28 min |
| Aug 14, 9:37 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 38 min |
| Aug 14, 9:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 32 min |
| Aug 14, 9:58 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 32 min |
| Aug 14, 10:14 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 46 min |
| Aug 14, 10:36 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 39 min |
| Aug 15, 12:02 AM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 43 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2005Every severe thunderstorm warning in 2005
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.