Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 66, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 2, 2006, 3:09 PM EDT for Chester County, Delaware County, Pennsylvania. It was in force for 51 min. 3 reports 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
- Jun 2, 2006, 3:09 PM EDT (19:09 UTC)
- Expired
- Jun 2, 2006, 4:00 PM EDT
- In force
- 51 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Chester County, PA, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 108 km from the middle of the area, began a volume at 19:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 2, 3:15 PM EDT | TSTM WND DMG | 2 Nw Chester Heights, PA | SMALL TREES UPROOTED WITH MINOR DAMAGE TO A SHOPPING CENTER IN GLEN MILLS. |
| Jun 2, 3:20 PM EDT | HAIL 1.25 | 8 Wsw Media, PA | SPOTTER REPORTED 1.25 INCH HAIL IN CONCORDVILLE |
| Jun 2, 3:20 PM EDT | HAIL 1.25 | 8 Wsw Media, PA | SPOTTER REPORTED 1.25 INCH HAIL IN CONCORDVILLE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 69 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
- 33 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1013 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 71 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 021909
SVRPHI
PAC029-045-022000-
/O.NEW.KPHI.SV.W.0066.060602T1909Z-060602T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
309 PM EDT FRI JUN 2 2006
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA
DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA
THIS INCLUDES THE CITY OF SPRINGFIELD
* UNTIL 400 PM EDT
* AT 307 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
WEST CHESTER...OR ABOUT 12 MILES NORTHWEST OF WILMINGTON...AND
MOVING NORTHEAST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
WEST CHESTER BY 320 PM EDT...
LIMA BY 345 PM EDT...
6 MILES SOUTHEAST OF PAOLI BY 350 PM EDT...
BROOMALL...SPRINGFIELD...6 MILES NORTHWEST OF NETHER PROVIDENCE
TOWNSHIP AND 6 MILES NORTHWEST OF SWARTHMORE BY 400 PM EDT...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 3987 7599 3992 7600 4011 7594 4025 7569
4020 7557 4015 7554 4015 7551 4013 7552
4009 7545 4007 7538 4003 7540 3990 7531
3985 7564 3973 7579 3972 7613
$$
STAUBER2 follow-up statements
000
WWUS51 KPHI 021922
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
322 PM EDT FRI JUN 2 2006
PAC029-045-022000-
/O.CON.KPHI.SV.W.0066.000000T0000Z-060602T2000Z/
DELAWARE PA-CHESTER PA-
322 PM EDT FRI JUN 2 2006
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR CHESTER AND NORTHERN DELAWARE COUNTIES...
AT 320 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR CHESTER HEIGHTS...OR ABOUT 10 MILES NORTH OF
WILMINGTON...MOVING EAST AT 15 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
CHESTER HEIGHTS BY 335 PM EDT...
LIMA BY 340 PM EDT...
MEDIA...NETHER PROVIDENCE TOWNSHIP AND UPPER PROVIDENCE TOWNSHIP BY
350 PM EDT...
SPRINGFIELD...MORTON...SWARTHMORE AND BROOMALL BY 355 PM EDT...
IN ADDITION...NATIONAL WEATHER SERVICE RADAR INDICATED TWO OTHER
VERY STRONG THUNDERSTORMS THAT ARE CAPABLE OF PRODUCING DAMAGING
WINDS. ONE OF THESE WAS COMING OUT OF LANCASTER COUNTY, JUST NORTH
OF THE MARYLAND BORDER AND MOVING INTO CHESTER COUNTY FROM THE WEST.
THE OTHER POSSIBLY SEVERE THUNDERSTORM WAS NEAR OXFORD PENNSYLVANIA.
LAT...LON 3987 7599 3992 7600 4011 7594 4025 7569
4020 7557 4015 7554 4015 7551 4013 7552
4009 7545 4007 7538 4003 7540 3990 7531
3985 7564 3973 7579 3972 7613
$$
STAUBER000
WWUS51 KPHI 022007
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
405 PM EDT FRI JUN 2 2006
PAC029-045-022015-
/O.EXP.KPHI.SV.W.0066.000000T0000Z-060602T2000Z/
DELAWARE PA-CHESTER PA-
405 PM EDT FRI JUN 2 2006
...THE SEVERE THUNDERSTORM WARNING FOR CHESTER AND NORTHERN DELAWARE
COUNTIES EXPIRED AT 400 PM EDT...
THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND NO LONGER
POSE A THREAT. HOWEVER...OTHER SEVERE STORMS COULD DEVELOP LATER
THIS AFTERNOON OR EVENING.
LAT...LON 3987 7599 3992 7600 4011 7594 4025 7569
4020 7557 4015 7554 4015 7551 4013 7552
4009 7545 4007 7538 4003 7540 3990 7531
3985 7564 3973 7579 3972 7613
$$
AMCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 12:02 PM EDT | Flash Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 17 hr |
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.