Alert archive / New Jersey / Special Weather Statements in 2013

Special Weather Statement, NWS Philadelphia/Mount Holly

February 1, 20135 counties in New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Feb 1, 2013, 10:21 AM EST for 5 counties in New Jersey. It was in force for 54 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: Feb 1, 2013, 10:21 AM EST (15:21 UTC)
Expired: Feb 1, 2013, 11:15 AM EST
In force: 54 min
Issued by: NWS Philadelphia/Mount Holly

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 15 km from the middle of the area, began a volume at 15:24 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 3.4 hours before the alert went out and 157 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 962 m above ground
0-6 km bulk shear: 94 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 309 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.

044 
WWUS81 KPHI 011521
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1021 AM EST FRI FEB 1 2013

NJZ017>020-022-025>027-011615-
ATLANTIC NJ-CAMDEN NJ-COASTAL ATLANTIC NJ-COASTAL OCEAN NJ-
GLOUCESTER NJ-NORTHWESTERN BURLINGTON NJ-OCEAN NJ-
SOUTHEASTERN BURLINGTON NJ-
1021 AM EST FRI FEB 1 2013

...SNOW SQUALLS WILL AFFECT CAMDEN...GLOUCESTER...BURLINGTON...
ATLANTIC AND OCEAN COUNTIES...

AT 1013 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SNOW SQUALLS ALONG A LINE EXTENDING FROM 11 MILES SOUTHEAST OF
TRENTON TO 4 MILES SOUTH OF GLOUCESTER CITY...MOVING SOUTHEAST AT 30
MPH. THE SQUALLS WILL AFFECT VOORHEES...EVESHAM AROUND 1015 AM...NEW
EGYPT...WOODRUFF AROUND 1030 AM...CEDAR GLEN LAKES...WHITING AROUND
1045 AM...BAMBER LAKE...HOLIDAY CITY AROUND 1100 AM...WARETOWN AND
OCEAN ACRES AROUND 1115 AM.

THE SNOW ASSOCIATED WITH THESE SNOW SHOWERS AND SQUALLS CAN CAUSE 
SUDDEN AND SHARP DECREASE IN VISIBILITY AS WELL AS SLIPPERY 
ROADWAYS. MOTORISTS SHOULD USE INCREASED CAUTION IF CAUGHT IN ONE OF 
THESE SQUALLS.

LAT...LON 3990 7409 3989 7409 3992 7410 3980 7417
      3975 7418 3978 7413 3977 7413 3976 7413
      3974 7416 3960 7419 3930 7455 3930 7460
      3976 7533 4015 7464 4013 7458 4008 7455
      4016 7442 4004 7404

$$

FORECASTER: AMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 31, 7:38 PM EST	Special Weather Statement	PHI	Burlington, Camden, Gloucester	82 min
Jan 31, 9:00 PM EST	Gale Watch	PHI		6 hr
Jan 31, 9:00 PM EST	Small Craft Advisory	PHI		6 hr
Feb 1, 3:29 AM EST	Gale Warning	PHI		12 hr
Feb 1, 3:29 AM EST	Small Craft Advisory	PHI		25 hr
Feb 1, 3:53 AM EST	Winter Weather Advisory	PHI	Atlantic, Cape May, Cumberland	8 hr
Feb 1, 3:16 PM EST	Low Water Advisory	PHI		7 hr

Nearby

Special Weather Statements in New Jersey, 2013 Every special weather statement in 2013

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.