Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 87, NWS Philadelphia/Mount Holly

June 1, 2011Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 1, 2011, 7:22 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 43 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
Jun 1, 2011, 7:22 PM EDT (23:22 UTC)
Expired
Jun 1, 2011, 8:05 PM EDT
In force
43 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 26 km from the middle of the area, began a volume at 23:22 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
Jun 1, 7:30 PM EDTHAIL 1Barnegat Twp, NJ

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 1, 12:58 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.4 hours before the alert went out and 163 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 2011-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 83 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 12:00Z on 2011-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.1939Sfc1 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
83 J/kg
Mixed-layer CIN
-625 J/kg
Mixed-layer LCL
1113 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

680 
WUUS51 KPHI 012322
SVRPHI
NJC005-029-020015-
/O.NEW.KPHI.SV.W.0087.110601T2322Z-110602T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
722 PM EDT WED JUN 1 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 815 PM EDT

* AT 718 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
  PENN STATE FOREST...OR 17 MILES SOUTHWEST OF TOMS RIVER...AND
  MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BROOKVILLE AND 8 MILES SOUTH OF BAMBER LAKE AROUND 730 PM EDT...
  7 MILES NORTH OF BEACH HAVEN WEST AROUND 735 PM EDT...
  BARNEGAT AROUND 740 PM EDT...
  FORKED RIVER...HARVEY CEDARS AND 8 MILES NORTH OF SURF CITY AROUND
  745 PM EDT...
  BARNEGAT LIGHT AROUND 750 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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.

THE TORNADO WATCH IS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING 
FOR SOUTHERN NEW JERSEY.

&&

LAT...LON 3978 7408 3966 7414 3968 7435 3974 7446
      3989 7450 3991 7411 3986 7412 3976 7418
      3972 7415 3975 7412 3977 7415 3977 7412
      3980 7413 3982 7410 3990 7410 3992 7406
TIME...MOT...LOC 2321Z 271DEG 27KT 3978 7439

$$

MPD
2 follow-up statements
492 
WWUS51 KPHI 012340
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
740 PM EDT WED JUN 1 2011

NJC005-012349-
/O.CAN.KPHI.SV.W.0087.000000T0000Z-110602T0015Z/
BURLINGTON NJ-
740 PM EDT WED JUN 1 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BURLINGTON COUNTY
IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR SOUTHERN NEW JERSEY. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 1000 PM EDT WEDNESDAY EVENING FOR DELAWARE AND
NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY.

LAT...LON 3978 7408 3966 7414 3968 7431 3978 7435
      3990 7422 3991 7411 3986 7412 3976 7418
      3972 7415 3975 7412 3977 7415 3977 7412
      3980 7413 3982 7410 3990 7410 3992 7406
TIME...MOT...LOC 2339Z 267DEG 29KT 3987 7414 3979 7423
          3969 7419

$$

NJC029-020015-
/O.CON.KPHI.SV.W.0087.000000T0000Z-110602T0015Z/
OCEAN NJ-
740 PM EDT WED JUN 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR CENTRAL OCEAN COUNTY...

AT 734 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE AN AREA OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE 
STORMS WERE LOCATED ALONG AN AREA FROM FORKED RIVER TO BROOKVILLE TO 
MANAHAWKIN...OR FROM 6 MILES SOUTH OF TOMS RIVER TO 13 MILES 
SOUTHWEST OF TOMS RIVER TO 18 MILES SOUTH OF TOMS RIVER...MOVING 
EAST AT 35 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  HARVEY CEDARS AND FORKED RIVER BY 745 PM EDT...
  BARNEGAT LIGHT BY 750 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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. THE TORNADO 
WATCH IS IN EFFECT UNTIL 800 PM EDT WEDNESDAY.

&&

LAT...LON 3978 7408 3966 7414 3968 7431 3978 7435
      3990 7422 3991 7411 3986 7412 3976 7418
      3972 7415 3975 7412 3977 7415 3977 7412
      3980 7413 3982 7410 3990 7410 3992 7406
TIME...MOT...LOC 2339Z 267DEG 29KT 3987 7414 3979 7423
          3969 7419

$$

MPD
457 
WWUS51 KPHI 020005
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
805 PM EDT WED JUN 1 2011

NJC029-020015-
/O.CAN.KPHI.SV.W.0087.000000T0000Z-110602T0015Z/
OCEAN NJ-
805 PM EDT WED JUN 1 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OCEAN COUNTY IS
CANCELLED...

LAT...LON 3978 7408 3966 7414 3968 7431 3978 7435
      3990 7422 3991 7411 3986 7412 3976 7418
      3972 7415 3975 7412 3977 7415 3977 7412
      3980 7413 3982 7410 3990 7410 3992 7406
TIME...MOT...LOC 0005Z 267DEG 29KT 3988 7387 3980 7396
          3970 7392

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 1:57 PM EDTSevere Thunderstorm WarningPHIWarren63 min
Jun 1, 3:08 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren16 min
Jun 1, 3:26 PM EDTSpecial Weather StatementPHISussex64 min
Jun 1, 4:00 PM EDTSmall Craft AdvisoryPHI35 hr
Jun 1, 4:05 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren40 min
Jun 1, 4:15 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset45 min
Jun 1, 4:31 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean59 min
Jun 1, 4:59 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth61 min
Jun 1, 5:23 PM EDTSpecial Weather StatementPHISalem67 min
Jun 1, 5:50 PM EDTSpecial Marine WarningPHI40 min
Jun 1, 6:11 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean64 min
Jun 1, 6:42 PM EDTSpecial Marine WarningPHI63 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011

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.