Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 156, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 6, 2005, 8:25 PM EST for New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania. It was in force for 47 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
- Nov 6, 2005, 8:25 PM EST (01:25 UTC)
- Expired
- Nov 6, 2005, 9:12 PM EST
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties New Castle County, DE, Delaware County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 87 km from the middle of the area, began a volume at 01:25 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, 1.4 hours before the alert went out and 199 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
- 186 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1702 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 320 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 070125 SVRPHI DEC003-PAC045-101-070230- /O.NEW.KPHI.SV.W.0156.051107T0125Z-051107T0230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 825 PM EST SUN NOV 6 2005 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA THIS INCLUDES THE CITY OF PHILADELPHIA * UNTIL 930 PM EST * AT 822 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 11 MILES WEST OF TALLEYVILLE... OR ABOUT 9 MILES NORTH OF NEWARK...AND MOVING EAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TALLEYVILLE BY 830 PM EST SWARTHMORE...NETHER PROVIDENCE TOWNSHIP...CHESTER AND LIMA BY 840 PM EST FOLCROFT...EAST LANSDOWNE...DREXEL HILL AND BROOMALL BY 845 PM EST YEADON BY 850 PM EST LAT...LON 3994 7549 3970 7579 3981 7538 4009 7499 $$ MPD
2 follow-up statements
000 WWUS51 KPHI 070155 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 854 PM EST SUN NOV 6 2005 DEC003-PAC045-070204- /O.CAN.KPHI.SV.W.0156.000000T0000Z-051107T0230Z/ NEW CASTLE DE-DELAWARE PA- 854 PM EST SUN NOV 6 2005 ...THE SEVERE THUNDERSTORM WARNING FOR DELAWARE AND NEW CASTLE COUNTIES IS CANCELLED... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST SUNDAY EVENING FOR NORTHWESTERN NEW JERSEY AND NORTHEASTERN PENNSYLVANIA. LAT...LON 4002 7518 3996 7522 4006 7519 4009 7499 $$ PAC101-070230- /O.CON.KPHI.SV.W.0156.000000T0000Z-051107T0230Z/ PHILADELPHIA PA- 854 PM EST SUN NOV 6 2005 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EST FOR PHILADELPHIA COUNTY... AT 852 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER CENTRAL PHILADELPHIA COUNTY...OR ABOUT NEAR PHILADELPHIA...MOVING EAST AT 45 MPH. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST SUNDAY EVENING FOR NORTHWESTERN NEW JERSEY AND NORTHEASTERN PENNSYLVANIA. LAT...LON 4002 7518 3996 7522 4006 7519 4009 7499 $$ MPD
000 WWUS51 KPHI 070212 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 911 PM EST SUN NOV 6 2005 PAC101-070221- /O.CAN.KPHI.SV.W.0156.000000T0000Z-051107T0230Z/ PHILADELPHIA PA- 911 PM EST SUN NOV 6 2005 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN PHILADELPHIA COUNTY IS CANCELLED... LAT...LON 4002 7518 3996 7522 4006 7519 4009 7499 $$ MPD
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 6, 8:00 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Northampton | 60 min |
| Nov 6, 8:08 PM EST | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 67 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2005Severe Thunderstorm Warnings in Delaware, 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.