Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 70, NWS Philadelphia/Mount Holly

July 1, 2012Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 1, 2012, 8:33 PM EDT for Ocean County, New Jersey. It was in force for 57 min. 1 report 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
Jul 1, 2012, 8:33 PM EDT (00:33 UTC)
Expired
Jul 1, 2012, 9:30 PM EDT
In force
57 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 31 km from the middle of the area, began a volume at 00:35 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
Jul 1, 8:45 PM EDTTSTM WND DMGShip Bottom, NJWIRES DOWN.

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 00:00Z, 0.6 hours before the alert went out and 171 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 00:00Z on 2012-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 792 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2012-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.19395878Sfc1 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
792 J/kg
Mixed-layer CIN
-147 J/kg
Mixed-layer LCL
1746 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

113 
WUUS51 KPHI 020033
SVRPHI
NJC029-020130-
/O.NEW.KPHI.SV.W.0070.120702T0033Z-120702T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
833 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 930 PM EDT

* AT 831 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BARNEGAT...OR 17 MILES SOUTH OF TOMS RIVER...AND MOVING SOUTHEAST
  AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BEACH HAVEN WEST AROUND 840 PM EDT...
  SURF CITY AND HARVEY CEDARS AROUND 850 PM EDT...
  NORTH BEACH HAVEN AND 7 MILES NORTHEAST OF BEACH HAVEN AROUND 855
  PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3960 7419 3955 7423 3968 7439 3976 7439
      3985 7428 3979 7417 3975 7418 3974 7415
      3972 7415 3974 7414 3977 7415 3974 7410
TIME...MOT...LOC 0032Z 312DEG 17KT 3972 7426

$$

MPD
2 follow-up statements
319 
WWUS51 KPHI 020050
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
850 PM EDT SUN JUL 1 2012

NJC029-020130-
/O.CON.KPHI.SV.W.0070.000000T0000Z-120702T0130Z/
OCEAN NJ-
850 PM EDT SUN JUL 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTH CENTRAL OCEAN COUNTY...

AT 848 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL AND DAMAGING WINDS OF 60 MPH.  THIS STORM WAS LOCATED NEAR 
BEACH HAVEN WEST...OR ABOUT 20 MILES SOUTH OF TOMS RIVER...
MOVING SOUTHEAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  SURF CITY...SHIP BOTTOM AND HARVEY CEDARS BY 855 PM EDT...
  NORTH BEACH HAVEN BY 900 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...DANGEROUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3960 7419 3955 7423 3967 7428 3975 7422
      3975 7418 3974 7415 3972 7415 3974 7414
      3977 7415 3974 7410
TIME...MOT...LOC 0050Z 313DEG 15KT 3968 7420

$$

MPD
907 
WWUS51 KPHI 020121
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
921 PM EDT SUN JUL 1 2012

NJC029-020130-
/O.CON.KPHI.SV.W.0070.000000T0000Z-120702T0130Z/
OCEAN NJ-
921 PM EDT SUN JUL 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTH CENTRAL OCEAN COUNTY...

AT 914 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
MAIN SEVERE THUNDERSTORM HAD MOVED OFF THE COAST. HOWEVER...A SECOND
STORM WAS APPROACHING LONG BEACH ISLAND BETWEEN SHIP BOTTOM AND BEACH
HAVEN. THAT STORM WAS EXPECTED TO REACH THE COAST BY 930 PM.

WIND GUSTS TO 60 MPH...HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING
REMAIN POSSIBLE UNTIL THE SECOND STORM PASSES. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  NORTH BEACH HAVEN AND SHIP BOTTOM BY 930 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3966 7415 3960 7419 3955 7423 3967 7428
TIME...MOT...LOC 0118Z 304DEG 20KT 3962 7429

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:16 PM EDTSpecial Weather StatementPHIOcean44 min
Jul 1, 8:39 PM EDTSpecial Marine WarningPHI66 min
Jul 1, 9:45 PM EDTSpecial Marine WarningPHI2 hr
Jul 1, 9:51 PM EDTSpecial Weather StatementPHIAtlantic24 min
Jul 1, 9:58 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May62 min
Jul 1, 10:04 PM EDTSpecial Marine WarningPHI116 min
Jul 2, 2:56 PM EDTCoastal Flood StatementPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more7 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2012Every severe thunderstorm warning in 2012

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.