Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 109, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2006, 6:09 PM EDT for Chester County, Pennsylvania. It was in force for 66 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
- Jul 2, 2006, 6:09 PM EDT (22:09 UTC)
- Expired
- Jul 2, 2006, 7:15 PM EDT
- In force
- 66 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), 106 km from the middle of the area, began a volume at 22:11 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 |
|---|---|---|---|
| Jul 2, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.2 hours before the alert went out and 200 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
- 555 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1325 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 143 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 022209
SVRPHI
PAC029-022315-
/O.NEW.KPHI.SV.W.0109.060702T2209Z-060702T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
609 PM EDT SUN JUL 2 2006
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA
* UNTIL 715 PM EDT
* AT 607 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 NEAR HONEY BROOK...OR ABOUT 13
MILES SOUTH OF READING...AND MOVING EAST AT 30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ELVERSON BY 620 PM EDT...
9 MILES NORTH OF DOWNINGTOWN BY 635 PM EDT...
LIONVILLE BY 640 PM EDT...
PHOENIXVILLE BY 650 PM EDT...
STORMS OF SIMILAR INTENSITY HAVE PRODUCED WIND DAMAGE ACROSS CENTRAL
PENNSYLVANIA TODAY. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS
BE WARY FOR FREQUENT LIGHTNING.
LAT...LON 4017 7554 4014 7553 4015 7551 4014 7552
4008 7551 3997 7552 4002 7586 4012 7593
4020 7578 4022 7567
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 4:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 91 min |
| Jul 2, 5:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 58 min |
| Jul 2, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 63 min |
| Jul 2, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 36 min |
| Jul 2, 6:54 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 51 min |
| Jul 2, 6:58 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 32 min |
| Jul 2, 7:01 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 59 min |
| Jul 2, 7:38 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 37 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.