Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 1, NWS Philadelphia/Mount Holly

February 16, 20164 counties in Pennsylvania; 9 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 16, 2016, 12:29 PM EST for 4 counties in Pennsylvania; 9 counties in New Jersey. It was in force for 46 min. 21 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
Feb 16, 2016, 12:29 PM EST (17:29 UTC)
Expired
Feb 16, 2016, 1:15 PM EST
In force
46 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Ocean County, NJ, Salem County, NJ, Bucks County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 36 km from the middle of the area, began a volume at 17:30 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

TimeReportWhereRemark
Feb 16, 12:33 PM ESTTSTM WND DMG1 Nw Clayton, NJMULTIPLE TREES AND WIRES DOWN ON DELSEA DR
Feb 16, 12:35 PM ESTTSTM WND GST 57West Deptford Twp, NJ
Feb 16, 12:36 PM ESTTSTM WND DMGDeptford Twp, NJDOWNED TREES AND TRAFFIC LIGHTS ON DELSEA DR
Feb 16, 12:36 PM ESTTSTM WND DMGWoodbury Heights, NJPOWER POLES BLOWN OVER AND BLOCKING ROADWAY.
Feb 16, 12:37 PM ESTTSTM WND DMGWoodbury, NJMULTIPLE TREES DOWN ON COOPER ST
Feb 16, 12:38 PM ESTTSTM WND GST 47Philadelphia Intl Airpo, PAA 47 MPH WIND GUST MEASURED AT PHILADELPHIA INTERNATIONAL AIRPORT ASSOCIATED WITH A SQUALL LINE.
Feb 16, 12:40 PM ESTTSTM WND DMG1 Nw Bellmawr, NJNUMEROUS TREES AND WIRES DOWN
Feb 16, 12:40 PM ESTTSTM WND DMGBellmawr, NJROOF DAMAGE TO 4 SEPERATE HOMES
Feb 16, 12:40 PM ESTTSTM WND DMGBrooklawn, NJPOWER LINES AND A TREE DOWN ON ROUTE 130 NORTHBOUND BETWEEN ROUTE 47 CR-551.
Feb 16, 12:40 PM ESTTSTM WND DMGWestville, NJTREE DAMAGE ALONG WITH SIDING AND ROOF DAMAGE TO SOME HOMES.
Feb 16, 12:41 PM ESTTSTM WND DMGHighland Park, NJSPORTS SCOREBOARD FOR GLOUCESTER CITY HIGH SCHOOL BLOWN OVER
Feb 16, 12:42 PM ESTTSTM WND DMG1 E Gloucester City, NJSEVERAL TREES AND WIRES DOWN IN GLOUCESTER CITY
Feb 16, 12:44 PM ESTTSTM WND DMGCamden, NJTRACTOR TRAILER BLOWN ONTO ITS SIDE ON THE CAMDEN SIDE OF THE WALT WHITMAN BRIDGE AS A SQUALL LINE MOVED THROUGH.
Feb 16, 12:46 PM ESTTSTM WND DMG2 E Camden, NJTREES AND WIRES DOWN IN CAMDEN
Feb 16, 12:48 PM ESTTSTM WND DMGPort Richmond, PA5 HOMES UNDER CONSTRUCTION COLLAPSED AT BELGRADE AND CAMBRIA STREETS.
Feb 16, 12:50 PM ESTTSTM WND DMGHolmesburg, PAROOF OF THE BOYS AND GIRLS CLUB BUILDING PARTIALLY BLOWN OFF. LOCATED ON DITMAN STREET.
Feb 16, 12:52 PM ESTTSTM WND DMGNe Philadelphia, PASHINGLES BLOWN OFF A ROOF. WIND GUST ESTIMATED TO AROUND 50 MPH.
Feb 16, 12:53 PM ESTTSTM WND GST 50Ne Philadelphia Airport, PAA 50 MPH WIND GUST MEASURED AT NORTHEAST PHILADELPHIA AIRPORT ASSOCIATED WITH A SQUALL LINE.
Feb 16, 12:54 PM ESTTSTM WND DMGSomerton, PALARGE TREE SNAPPED AT THE BASE AND FELL ONTO THE PATIO OF A HOME. NO INJURIES REPORTED.
Feb 16, 12:56 PM ESTTSTM WND DMGFeasterville, PAA VERY LARGE TREE BLOWN OVER ONTO A HOME.
Feb 16, 1:06 PM ESTTSTM WND DMGNe Philadelphia, PASHINGLES OFF ROOF...WIND ESTIMATED ABOUT 50 MPH

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.5 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2016-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2016-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 391 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
754 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
391 m²/s²
0-3 km storm-relative helicity
363 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

179 
WUUS51 KPHI 161729
SVRPHI
NJC001-005-007-011-015-019-021-029-033-PAC017-045-091-101-161815-
/O.NEW.KPHI.SV.W.0001.160216T1729Z-160216T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1229 PM EST TUE FEB 16 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  EASTERN DELAWARE COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  PHILADELPHIA COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 115 PM EST

* AT 1228 PM EST...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
  ROYERSFORD TO ELMER TO NEAR LAUREL LAKE...AND MOVING NORTH AT 75
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  PHILADELPHIA...TRENTON...CAMDEN...VINELAND...ATLANTIC CITY...
  MILLVILLE...GLOUCESTER CITY...CUMBERLAND...CHERRY HILL...
  BENSALEM...EVESHAM...MOUNT LAUREL...EWING...NORRISTOWN...CHESTER...
  WILLINGBORO...DEPTFORD...VOORHEES...MEDFORD AND WEST DEPTFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND VERY HEAVY RAIN. FOR
YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THERE IS LITTLE TO NO LIGHTNING WITH THESE
STORMS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3940 7448 3939 7441 3934 7446 3932 7486
      3926 7489 3919 7515 3958 7522 3998 7546
      4006 7537 4018 7554 4059 7524 4073 7496
      4073 7495 4038 7473 4039 7463 4019 7456
      4018 7461 3977 7439 3943 7441 3943 7436
TIME...MOT...LOC 1728Z 201DEG 65KT 4021 7552 3959 7514 3933 7510 

$$

JRK/MJG
1 follow-up statement
490 
WWUS51 KPHI 161748
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1248 PM EST TUE FEB 16 2016

NJC011-029-033-PAC045-161755-
/O.CAN.KPHI.SV.W.0001.000000T0000Z-160216T1815Z/
SALEM NJ-OCEAN NJ-CUMBERLAND NJ-DELAWARE PA-
1248 PM EST TUE FEB 16 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SALEM...SOUTHERN
OCEAN...CUMBERLAND AND EASTERN DELAWARE COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3947 7493 3957 7507 4026 7536 4053 7529
      4058 7525 4061 7520 4059 7518 4073 7496
      4038 7473 4039 7463 4038 7462 4034 7463
      4031 7460 4020 7456 4018 7461 3998 7450
      3973 7443
TIME...MOT...LOC 1745Z 196DEG 68KT 4034 7532 3997 7511 3961 7497 

$$

NJC001-005-007-015-019-021-PAC017-091-101-161815-
/O.CON.KPHI.SV.W.0001.000000T0000Z-160216T1815Z/
CAMDEN NJ-GLOUCESTER NJ-MERCER NJ-HUNTERDON NJ-ATLANTIC NJ-
BURLINGTON NJ-BUCKS PA-MONTGOMERY PA-PHILADELPHIA PA-
1248 PM EST TUE FEB 16 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EST
FOR CAMDEN...EASTERN GLOUCESTER...MERCER...HUNTERDON...NORTHWESTERN
ATLANTIC...BURLINGTON...BUCKS...SOUTHEASTERN MONTGOMERY AND
PHILADELPHIA COUNTIES...

AT 1245 PM EST...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
SOUDERTON TO BEN FRANKLIN BRIDGE TO NEAR MONROE TOWNSHIP...MOVING
NORTH AT 75 MPH. THE STRONGEST SEGMENT WITHIN THE LINE OF STORM IS
CURRENTLY MOVING THROUGH WESTERN CAMDEN AND PHILADELPHIA.

LOCATIONS IMPACTED INCLUDE...
PHILADELPHIA...TRENTON...CAMDEN...VINELAND...GLOUCESTER CITY...CHERRY
HILL...BENSALEM...EVESHAM...MOUNT LAUREL...EWING...WILLINGBORO...
DEPTFORD...VOORHEES...MEDFORD...GLASSBORO...LINDENWOLD...LANSDALE...
HAMMONTON...EAST NORRITON AND LUMBERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND VERY HEAVY RAIN.
THERE IS LITTLE TO NO LIGHTNING WITH THESE STORMS. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3947 7493 3957 7507 4026 7536 4053 7529
      4058 7525 4061 7520 4059 7518 4073 7496
      4038 7473 4039 7463 4038 7462 4034 7463
      4031 7460 4020 7456 4018 7461 3998 7450
      3973 7443
TIME...MOT...LOC 1745Z 196DEG 68KT 4034 7532 3997 7511 3961 7497 

$$

JRK

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 16, 11:15 AM ESTSpecial Weather StatementPHIChester, Delaware, Montgomery60 min
Feb 16, 12:09 PM ESTSpecial Weather StatementPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more51 min
Feb 16, 12:11 PM ESTSpecial Weather StatementPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more49 min
Feb 16, 12:34 PM ESTAreal Flood AdvisoryPHIBerks, Carbon, Chester, Delaware, Lehigh, Monroe and 2 more4 hr
Feb 16, 12:52 PM ESTAreal Flood AdvisoryPHIBucks, Chester, Delaware, Lehigh, Monroe, Montgomery and 2 more4 hr
Feb 16, 1:22 PM ESTAreal Flood AdvisoryPHIBucks, Monroe4 hr
Feb 16, 3:04 PM ESTRiver Flood WarningPHIChester13 hr
Feb 16, 3:13 PM ESTAreal Flood WarningPHIBerks, Chester, Delaware, Montgomery4 hr
Feb 16, 1:04 PM ESTSpecial Weather StatementPHIMercer, Middlesex, Monmouth, Morris, Ocean, Somerset and 1 more116 min
Feb 16, 1:11 PM ESTAreal Flood AdvisoryPHIAtlantic, Camden, Cape May, Cumberland, Gloucester, Salem4 hr
Feb 16, 1:11 PM ESTSevere Thunderstorm WarningPHIAtlantic, Burlington, Hunterdon, Mercer, Middlesex, Monmouth and 3 more94 min
Feb 16, 1:21 PM ESTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren39 min
Feb 16, 1:39 PM ESTSpecial Marine WarningPHI51 min
Feb 16, 1:56 PM ESTSevere Thunderstorm WarningPHIMorris, Sussex38 min
Feb 16, 2:29 PM ESTSpecial Marine WarningPHI91 min
Feb 16, 3:43 PM ESTSmall Craft AdvisoryPHI60 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2016Severe Thunderstorm Warnings in Pennsylvania, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.