Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

August 9, 20124 counties in New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 9, 2012, 3:35 PM EDT for 4 counties in New Jersey. It was in force for 55 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: Aug 9, 2012, 3:35 PM EDT (19:35 UTC)
Expired: Aug 9, 2012, 4:30 PM EDT
In force: 55 min
Issued by: NWS Philadelphia/Mount Holly

Counties Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 82 km from the middle of the area, began a volume at 19:36 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 nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.6 hours before the alert went out and 136 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: 802 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 932 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 33 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.

033 
WWUS81 KPHI 091935
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
335 PM EDT THU AUG 9 2012

NJZ008>010-012-015-092030-
HUNTERDON NJ-MERCER NJ-MIDDLESEX NJ-MORRIS NJ-SOMERSET NJ-
335 PM EDT THU AUG 9 2012

...STRONG THUNDERSTORMS WILL AFFECT HUNTERDON...MERCER...MIDDLESEX...
MORRIS AND SOMERSET COUNTIES...

AT 332 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 12 MILES SOUTH OF
NEWTON TO 7 MILES NORTH OF SOMERVILLE TO 4 MILES SOUTHWEST OF
SOMERVILLE TO 9 MILES NORTH OF TRENTON...MOVING EAST AT 15 MPH. THE
THUNDERSTORMS WILL BE NEAR WHARTON...MOUNT ARLINGTON AROUND 345 PM...
ROCKAWAY...MILLINGTON AROUND 400 PM...WHITE MEADOW LAKE...LAKE
TELEMARK AROUND 415 PM...MONMOUTH JUNCTION AND SOUTH PLAINFIELD
AROUND 430 PM.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS. THE GUST FRONT
IS MOVING AHEAD OF THE RAIN, PLEASE BE WARY FOR THE SHIFTING STRONG
WINDS.

THESE STORMS WILL PRODUCE SMALL HAIL.

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

THERE REMAINS A CHANCE THAT ONE OR TWO STORMS WITHIN THIS LINE MAY BECOME
SEVERE. PLEASE LOOK FOR POSSIBLE WARNINGS AND MOVE INDOORS AT THE
FIRST SIGN OF THREATENING WEATHER.


LAT...LON 4056 7422 4027 7444 4026 7485 4033 7492
      4054 7478 4090 7471 4092 7466 4096 7463
      4098 7427 4090 7427 4090 7433 4086 7432
      4080 7436 4074 7436 4067 7445 4067 7439
      4060 7444 4060 7422

$$

TFG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 1:17 PM EDT	Special Marine Warning	PHI		88 min
Aug 9, 1:46 PM EDT	Special Marine Warning	PHI		54 min
Aug 9, 2:01 PM EDT	Special Marine Warning	PHI		119 min
Aug 9, 2:20 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	70 min
Aug 9, 2:25 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Somerset	65 min
Aug 9, 2:56 PM EDT	Special Weather Statement	PHI	Sussex	94 min
Aug 9, 3:23 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	71 min
Aug 9, 4:18 PM EDT	Special Weather Statement	PHI	Hunterdon	57 min
Aug 9, 4:33 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Somerset	57 min
Aug 9, 4:57 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth	78 min
Aug 9, 5:06 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	3 hr
Aug 9, 5:08 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex, Monmouth	2 hr
Aug 9, 5:26 PM EDT	Flash Flood Warning	PHI	Hunterdon, Mercer	2 hr
Aug 9, 5:48 PM EDT	Areal Flood Advisory	PHI	Middlesex	2 hr
Aug 9, 6:17 PM EDT	Flash Flood Warning	PHI	Middlesex	88 min
Aug 9, 1:00 PM EDT	Special Weather Statement	PHI	Lehigh	60 min
Aug 9, 1:22 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	68 min
Aug 9, 1:26 PM EDT	Areal Flood Advisory	PHI	Bucks, Montgomery	3 hr
Aug 9, 1:33 PM EDT	Special Weather Statement	PHI	Northampton	57 min
Aug 9, 1:42 PM EDT	Special Weather Statement	PHI	Monroe	63 min
Aug 9, 1:45 PM EDT	Special Weather Statement	PHI	Berks	60 min
Aug 9, 2:13 PM EDT	Severe Thunderstorm Warning	PHI	Berks	77 min
Aug 9, 3:03 PM EDT	Special Weather Statement	PHI	Monroe	87 min
Aug 9, 3:05 PM EDT	Special Weather Statement	PHI	Chester, Montgomery	85 min
Aug 9, 3:11 PM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	6 hr
Aug 9, 3:20 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	55 min
Aug 9, 3:39 PM EDT	Special Weather Statement	PHI	Bucks	66 min
Aug 9, 3:57 PM EDT	Areal Flood Advisory	PHI	Chester, Montgomery	104 min
Aug 9, 3:57 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	63 min
Aug 9, 7:01 PM EDT	Special Weather Statement	PHI	Berks	59 min
Aug 9, 7:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh	80 min
Aug 9, 7:40 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	95 min
Aug 9, 7:46 PM EDT	Areal Flood Advisory	PHI	Berks	3 hr
Aug 9, 12:34 PM EDT	Special Weather Statement	PHI	Kent	56 min
Aug 9, 1:04 PM EDT	Severe Thunderstorm Warning	PHI	Kent	23 min
Aug 9, 1:17 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	43 min
Aug 9, 1:39 PM EDT	Special Weather Statement	PHI	Kent	66 min
Aug 9, 1:55 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	65 min
Aug 9, 2:04 PM EDT	Special Weather Statement	PHI	Kent	56 min
Aug 9, 2:19 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	56 min
Aug 9, 2:23 PM EDT	Special Weather Statement	PHI	Sussex	52 min
Aug 9, 3:17 PM EDT	Special Weather Statement	PHI	Sussex	88 min
Aug 9, 3:42 PM EDT	Areal Flood Advisory	PHI	Sussex	119 min
Aug 9, 1:47 PM EDT	Special Weather Statement	PHI	Cecil	88 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.