Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 18, 2012Cape May County, Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 18, 2012, 6:45 PM EDT for Cape May County, Cumberland County, New Jersey. It was in force for 60 min. 2 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: Jul 18, 2012, 6:45 PM EDT (22:45 UTC)
Expired: Jul 18, 2012, 7:45 PM EDT
In force: 60 min
Issued by: NWS Philadelphia/Mount Holly

Counties Cape May County, NJ, Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 49 km from the middle of the area, began a volume at 22:46 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

Time	Report	Where	Remark
Jul 18, 7:30 PM EDT	MARINE TSTM WIND 39	Cape May, NJ
Jul 18, 7:36 PM EDT	MARINE TSTM WIND 41	Cape May Nos Buoy, NJ

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.8 hours before the alert went out and 97 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 884 J/kg
Mixed-layer CIN: -169 J/kg
Mixed-layer LCL: 1666 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

314 
WWUS81 KPHI 182245
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
645 PM EDT WED JUL 18 2012

NJZ021-023-024-182345-
ATLANTIC COASTAL CAPE MAY NJ-CAPE MAY NJ-CUMBERLAND NJ-
645 PM EDT WED JUL 18 2012

...STRONG THUNDERSTORMS APPROACHING CAPE MAY AND CUMBERLAND 
COUNTIES...

AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES WEST OF
MILLVILLE TO 8 MILES EAST OF DOVER TO 15 MILES SOUTHWEST OF DOVER...
MOVING EAST AT 30 MPH. THE THUNDERSTORMS WILL BE NEAR NEWPORT AROUND
650 PM...FORTESQUE AROUND 655 PM...DIVIDING CREEK AROUND 700 PM...
LAUREL LAKE AROUND 705 PM...PORT ELIZABETH...MAURICETOWN...BIVALVE...
PORT NORRIS AROUND 710 PM...MAURICETOWN AND LEESBURG AROUND 715 PM.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.

WIND GUSTS TO 50 MPH AND HAIL ARE POSSIBLE WITH THESE STORMS.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. DO NOT 
SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS 
WHEN A THUNDERSTORM APPROACHES.

LAT...LON 3895 7498 3911 7490 3916 7490 3919 7503
      3921 7505 3920 7511 3917 7514 3923 7518
      3929 7526 3928 7529 3931 7533 3934 7534
      3944 7529 3925 7461 3899 7478 3893 7487
      3892 7491 3892 7497

$$

FORECASTER: GORSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 12:51 PM EDT	Special Weather Statement	PHI	Sussex	54 min
Jul 18, 1:02 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	34 min
Jul 18, 1:11 PM EDT	Special Weather Statement	PHI	Sussex	34 min
Jul 18, 1:23 PM EDT	Special Weather Statement	PHI	Morris	37 min
Jul 18, 1:43 PM EDT	Areal Flood Advisory	PHI	Sussex	2 hr
Jul 18, 1:49 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	26 min
Jul 18, 1:53 PM EDT	Special Weather Statement	PHI	Mercer	37 min
Jul 18, 2:15 PM EDT	Special Weather Statement	PHI	Sussex	60 min
Jul 18, 2:23 PM EDT	Special Weather Statement	PHI	Warren	67 min
Jul 18, 2:46 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex	29 min
Jul 18, 3:00 PM EDT	Special Weather Statement	PHI	Monmouth	45 min
Jul 18, 3:04 PM EDT	Special Weather Statement	PHI	Warren	41 min
Jul 18, 3:13 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	47 min
Jul 18, 3:18 PM EDT	Special Marine Warning	PHI		42 min
Jul 18, 3:25 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	65 min
Jul 18, 3:26 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	49 min
Jul 18, 3:29 PM EDT	Special Weather Statement	PHI	Monmouth	46 min
Jul 18, 3:43 PM EDT	Special Weather Statement	PHI	Warren	47 min
Jul 18, 3:52 PM EDT	Flash Flood Warning	PHI	Warren	113 min
Jul 18, 3:59 PM EDT	Flash Flood Warning	PHI	Morris, Sussex	107 min
Jul 18, 4:03 PM EDT	Special Weather Statement	PHI	Hunterdon	42 min
Jul 18, 4:17 PM EDT	Special Weather Statement	PHI	Morris	43 min
Jul 18, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	32 min
Jul 18, 4:30 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	45 min
Jul 18, 4:41 PM EDT	Special Weather Statement	PHI	Mercer	34 min
Jul 18, 4:53 PM EDT	Special Weather Statement	PHI	Mercer	22 min
Jul 18, 5:01 PM EDT	Special Weather Statement	PHI	Middlesex	29 min
Jul 18, 5:07 PM EDT	Special Marine Warning	PHI		38 min
Jul 18, 5:11 PM EDT	Special Weather Statement	PHI	Middlesex, Somerset	64 min
Jul 18, 5:12 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Somerset	81 min
Jul 18, 5:19 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	41 min
Jul 18, 5:26 PM EDT	Special Marine Warning	PHI		34 min
Jul 18, 5:33 PM EDT	Special Weather Statement	PHI	Mercer	57 min
Jul 18, 5:44 PM EDT	Special Marine Warning	PHI		31 min
Jul 18, 6:00 PM EDT	Special Marine Warning	PHI		60 min
Jul 18, 6:09 PM EDT	Areal Flood Advisory	PHI	Burlington, Monmouth, Ocean	68 min
Jul 18, 6:32 PM EDT	Special Weather Statement	PHI	Ocean	43 min
Jul 18, 6:51 PM EDT	Special Marine Warning	PHI		39 min
Jul 18, 6:51 PM EDT	Special Marine Warning	PHI		39 min
Jul 18, 7:17 PM EDT	Special Weather Statement	PHI	Cape May	58 min
Jul 18, 1:27 PM EDT	Special Weather Statement	PHI	Monroe	33 min
Jul 18, 2:07 PM EDT	Special Weather Statement	PHI	Berks	38 min
Jul 18, 2:12 PM EDT	Severe Thunderstorm Warning	PHI	Berks	48 min
Jul 18, 2:43 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	47 min
Jul 18, 3:36 PM EDT	Special Weather Statement	PHI	Berks	54 min
Jul 18, 3:51 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	28 min
Jul 18, 4:22 PM EDT	Special Weather Statement	PHI	Bucks	23 min
Jul 18, 5:30 PM EDT	Special Weather Statement	PHI	Bucks	60 min
Jul 18, 5:51 PM EDT	Special Weather Statement	PHI	Philadelphia	54 min
Jul 18, 5:47 PM EDT	Special Weather Statement	PHI	Kent, New Castle	58 min
Jul 18, 6:01 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	17 min
Jul 18, 6:23 PM EDT	Severe Thunderstorm Warning	PHI	Kent	37 min
Jul 18, 6:48 PM EDT	Special Weather Statement	PHI	Kent	12 min
Jul 18, 6:57 PM EDT	Areal Flood Advisory	PHI	Kent, Sussex	82 min
Jul 18, 6:57 PM EDT	Severe Thunderstorm Warning	PHI	Kent	17 min
Jul 18, 4:37 PM EDT	Special Weather Statement	PHI	Kent	23 min
Jul 18, 4:47 PM EDT	Special Weather Statement	PHI	Cecil	28 min
Jul 18, 5:20 PM EDT	Special Weather Statement	PHI	Queen Anne's	40 min
Jul 18, 5:35 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	25 min
Jul 18, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	39 min
Jul 18, 6:26 PM EDT	Areal Flood Advisory	PHI	Caroline, Kent, Queen Anne's, Talbot	68 min

Nearby

Special Weather Statements in New Jersey, 2012 Every special weather statement 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.