Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 208, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 27, 2006, 10:55 PM EDT for Chester County, Pennsylvania. It was in force for 65 min. 1 report 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
- Jul 27, 2006, 10:55 PM EDT (02:55 UTC)
- Expired
- Jul 28, 2006, 12:00 AM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
County Chester County, PA
The radar
The Philadelphia radar (KDIX), 123 km from the middle of the area, began a volume at 02:57 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 |
|---|---|---|---|
| Jul 27, 11:14 PM EDT | TSTM WND DMG | 5 W West Chester, PA | TREES AND WIRES DOWN OVER CENTRAL AND EASTERN PARTS OF COUNTY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.9 hours before the alert went out and 178 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
- 2366 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1305 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 280256
SVRPHI
PAC029-280400-
/O.NEW.KPHI.SV.W.0208.060728T0255Z-060728T0400Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1055 PM EDT THU JUL 27 2006
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA
* UNTIL MIDNIGHT EDT
* AT 1053 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR PARKESBURG...OR
ABOUT 17 MILES EAST OF LANCASTER...AND MOVING EAST AT 30 MPH. THIS STORM
COULD PRODUCE WINDS OF 60 MPH AND TORRENTIAL RAINS.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
PARKESBURG BY 1100 PM EDT...
8 MILES SOUTH OF HONEY BROOK BY 1105 PM EDT...
COATESVILLE BY 1110 PM EDT...
DOWNINGTOWN BY 1120 PM EDT...
WEST CHESTER AND LIONVILLE BY 1130 PM EDT...
LAT...LON 4001 7615 3984 7609 3985 7564 4002 7552
4019 7564 4019 7574
$$
EBERWINEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 11:32 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Montgomery | 88 min |
| Jul 28, 12:32 AM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 43 min |
| Jul 28, 12:40 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 3 hr |
| Jul 28, 12:40 AM EDT | Severe Thunderstorm Warning | PHI | Bucks | 65 min |
| Jul 28, 2:28 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 62 min |
| Jul 28, 2:49 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 56 min |
| Jul 28, 3:07 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 53 min |
| Jul 28, 4:03 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 57 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2006Every severe thunderstorm warning in 2006
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.