Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 6, 2008, 10:19 PM EST for Berks County, Pennsylvania. It was in force for 41 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
- Feb 6, 2008, 10:19 PM EST (03:19 UTC)
- Expired
- Feb 6, 2008, 11:00 PM EST
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 157 km from the middle of the area, began a volume at 03:21 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, 3.3 hours before the alert went out and 208 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
- 16 J/kg
- Mixed-layer CIN
- -293 J/kg
- Mixed-layer LCL
- 848 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 448 m²/s²
- 0-3 km storm-relative helicity
- 401 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 070320
SVRPHI
PAC011-070400-
/O.NEW.KPHI.SV.W.0002.080207T0319Z-080207T0400Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1019 PM EST WED FEB 6 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
THIS INCLUDES THE CITY OF READING...
* UNTIL 1100 PM EST
* AT 1017 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 16 MILES WEST OF WOMELSDORF TO 31 MILES SOUTHWEST OF
WOMELSDORF...OR ALONG A LINE EXTENDING FROM 27 MILES NORTH OF
LANCASTER TO 15 MILES WEST OF LANCASTER...AND MOVING NORTHEAST AT
55 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
WOMELSDORF AND STRAUSSTOWN BY 1035 PM EST...
BERNVILLE BY 1040 PM EST...
WERNERSVILLE AND HAMBURG BY 1045 PM EST...
LEESPORT BY 1050 PM EST...
READING AND LENHARTSVILLE BY 1055 PM EST...
BIRDSBORO AND FLEETWOOD BY 1100 PM EST...
LAT...LON 4052 7637 4052 7629 4054 7618 4056 7615
4058 7609 4059 7607 4059 7603 4064 7600
4068 7589 4065 7585 4029 7568 4019 7596
4050 7644
TIME...MOT...LOC 0319Z 245DEG 51KT 4042 7646 4005 7656
$$
OHARAThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 7:37 PM EST | Severe Thunderstorm Warning | PHI | Monroe | 23 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008
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.