Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 151, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 28, 2016, 2:30 PM EDT for Delaware County, Montgomery County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 45 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 28, 2016, 2:30 PM EDT (18:30 UTC)
- Expired
- Jul 28, 2016, 3:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 57 km from the middle of the area, began a volume at 18:29 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 28, 1:27 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.5 hours before the alert went out and 216 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
- 19 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1314 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
383
WUUS51 KPHI 281830
SVRPHI
NJC005-007-015-PAC045-091-101-281915-
/O.NEW.KPHI.SV.W.0151.160728T1830Z-160728T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
230 PM EDT THU JUL 28 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
EASTERN DELAWARE COUNTY IN SOUTHEASTERN PENNSYLVANIA...
SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...
PHILADELPHIA COUNTY IN SOUTHEASTERN PENNSYLVANIA...
* UNTIL 315 PM EDT
* AT 229 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
CHESTER...OR 11 MILES WEST OF GLOUCESTER CITY...MOVING NORTHEAST
AT 25 MPH. OTHER THUNDERSTORMS ARE DEVELOPING OVER THE AREA.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
PHILADELPHIA...CAMDEN...GLOUCESTER CITY...CHERRY HILL...EVESHAM...
MOUNT LAUREL...CHESTER...WILLINGBORO...DEPTFORD...VOORHEES...
MEDFORD...WEST DEPTFORD...GLASSBORO...LINDENWOLD...LUMBERTON...
BELLMAWR...YEADON...WOODBURY...BURLINGTON AND MOUNT HOLLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3964 7516 3967 7520 3966 7523 3973 7536
3991 7547 4017 7508 4012 7496 4008 7496
4006 7498 4005 7497 4009 7486 3997 7466
TIME...MOT...LOC 1829Z 253DEG 45KT 3985 7534
HAIL...<.75IN
WIND...60MPH
$$
JJM1 follow-up statement
986
WWUS51 KPHI 281901
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
301 PM EDT THU JUL 28 2016
PAC091-281909-
/O.CAN.KPHI.SV.W.0151.000000T0000Z-160728T1915Z/
MONTGOMERY PA-
301 PM EDT THU JUL 28 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONTGOMERY COUNTY
IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE THE WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR
SOUTHERN NEW JERSEY...AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 3967 7511 3974 7526 3991 7541 4000 7522
4006 7513 4005 7510 4008 7509 4013 7501
4012 7496 4008 7496 4006 7498 4005 7497
4009 7486 3997 7466
TIME...MOT...LOC 1859Z 233DEG 28KT 3999 7511
$$
NJC005-007-015-PAC045-101-281915-
/O.CON.KPHI.SV.W.0151.000000T0000Z-160728T1915Z/
CAMDEN NJ-GLOUCESTER NJ-BURLINGTON NJ-DELAWARE PA-PHILADELPHIA PA-
301 PM EDT THU JUL 28 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR NORTHWESTERN CAMDEN...NORTHWESTERN GLOUCESTER...NORTHWESTERN
BURLINGTON...SOUTHEASTERN DELAWARE AND PHILADELPHIA COUNTIES...
AT 259 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
KENSINGTON...IN PHILADELPHIA...MOVING NORTHEAST AT 25 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
PHILADELPHIA...CAMDEN...GLOUCESTER CITY...CHERRY HILL...EVESHAM...
MOUNT LAUREL...CHESTER...WILLINGBORO...DEPTFORD...VOORHEES...
MEDFORD...WEST DEPTFORD...GLASSBORO...LINDENWOLD...LUMBERTON...
BELLMAWR...YEADON...WOODBURY...BURLINGTON AND MOUNT HOLLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM OVER SOUTH
PHILADELPHIA AND IMMEDIATE SURROUNDING AREAS OF SOUTHEAST
PENNSYLANIA AND SOUTHERN NEW JERSEY...AND MAY LEAD TO FLASH
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 3967 7511 3974 7526 3991 7541 4000 7522
4006 7513 4005 7510 4008 7509 4013 7501
4012 7496 4008 7496 4006 7498 4005 7497
4009 7486 3997 7466
TIME...MOT...LOC 1859Z 233DEG 28KT 3999 7511
HAIL...<.75IN
WIND...60MPH
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 12:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 47 min |
| Jul 28, 1:24 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 51 min |
| Jul 28, 2:36 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 28, 3:28 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 27 min |
| Jul 28, 3:41 PM EDT | Areal Flood Advisory | PHI | Berks | 4 hr |
| Jul 28, 4:50 PM EDT | Areal Flood Advisory | PHI | Berks | 4 hr |
| Jul 28, 2:03 PM EDT | Special Marine Warning | PHI | 57 min | |
| Jul 28, 2:20 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 28, 3:04 PM EDT | Special Marine Warning | PHI | 116 min | |
| Jul 28, 3:54 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cumberland, Gloucester, Salem | 4 hr |
| Jul 28, 3:58 PM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 4 hr |
| Jul 28, 4:04 PM EDT | Special Weather Statement | PHI | Salem | 41 min |
| Jul 28, 4:46 PM EDT | Special Weather Statement | PHI | Atlantic | 59 min |
| Jul 28, 5:05 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 28, 5:17 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Ocean | 4 hr |
| Jul 28, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 63 min |
| Jul 28, 6:23 PM EDT | Special Marine Warning | PHI | 67 min | |
| Jul 28, 6:38 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 28, 6:48 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland | 4 hr |
| Jul 28, 6:51 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 28 min |
| Jul 28, 6:56 PM EDT | Special Marine Warning | PHI | 64 min | |
| Jul 28, 7:32 PM EDT | Special Marine Warning | PHI | 88 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2016Severe Thunderstorm Warnings in New Jersey, 2016Every severe thunderstorm warning in 2016
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.