Alert archive / New Jersey / Special Weather Statements in 2017

Special Weather Statement, NWS Philadelphia/Mount Holly

March 3, 2017Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Mar 3, 2017, 4:54 PM EST for Morris County, Somerset County, New Jersey. It was in force for 36 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: Mar 3, 2017, 4:54 PM EST (21:54 UTC)
Expired: Mar 3, 2017, 5:30 PM EST
In force: 36 min
Issued by: NWS Philadelphia/Mount Holly

Counties Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 81 km from the middle of the area, began a volume at 21:56 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, 9.9 hours before the alert went out and 139 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: 1272 m above ground
0-6 km bulk shear: 90 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

193 
WWUS81 KPHI 032154
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
454 PM EST FRI MAR 3 2017

NJZ001-007>010-012-032230-
Morris-Hunterdon-Sussex-Somerset-Middlesex-Warren-
454 PM EST FRI MAR 3 2017

...A SNOW SQUALL WILL AFFECT MORRIS...NORTHERN HUNTERDON...SOUTH
CENTRAL SUSSEX...SOUTHEASTERN WARREN...NORTHERN SOMERSET AND
NORTHEASTERN MIDDLESEX COUNTIES...

At 451 PM EST, a snow squall was located along a line extending from
Hackettstown to near Peapack And Gladstone to near Bloomsbury.
Movement was east at 35 mph and will impact portions of Interstates 
78 and 287 in New Jersey.

This squall will be near...
  Peapack And Gladstone around 455 PM EST. 
  Stanhope, Glen Gardner, Far Hills and Long Valley around 500 PM 
  EST. 
  High Bridge, Netcong, Chester, Budd Lake and Annandale around 505 
  PM EST. 
  Millington, Succasunna, Basking Ridge, Martinsville and 
  Succasunna-Kenvil around 510 PM EST. 
  Dover, Bound Brook, Wharton, Mendham, Victory Gardens and Lebanon 
  around 515 PM EST. 
  Middlesex, White House Station and Society Hill around 520 PM EST. 
  Morristown and Morris Plains around 525 PM EST. 
  Somerville, Edison, Bridgewater, Carteret, Madison, Florham Park, 
  East Hanover, Manville, Chatham and Colonia around 530 PM EST. 

Visibilities in this squall will drop quickly to one-quarter mile or 
less in spots for a few minutes. Wind gusts in excess of 40 mph are 
also possible. Any snowfall accumulations will be minor and limited 
to grassy surfaces.

Use extra caution and reduce speed if traveling into or through this 
snow squall. Rapid changes in visibility could lead to accidents. 

LAT...LON 4053 7425 4049 7441 4061 7514 4075 7500
      4085 7499 4098 7465 4082 7434 4079 7437
      4074 7437 4067 7446 4066 7445 4066 7440
      4060 7445 4061 7431 4059 7429 4059 7420
TIME...MOT...LOC 2151Z 288DEG 29KT 4086 7485 4070 7473 4062 7508 

$$

JRK

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 3, 3:04 PM EST	Special Weather Statement	PHI	Gloucester, Salem	41 min
Mar 3, 3:18 PM EST	Special Weather Statement	PHI	Sussex, Warren	57 min
Mar 3, 4:08 PM EST	Special Weather Statement	PHI	Warren	37 min
Mar 3, 4:48 PM EST	Special Weather Statement	PHI	Hunterdon, Mercer	42 min
Mar 3, 5:31 PM EST	Special Weather Statement	PHI	Camden, Mercer	29 min
Mar 3, 5:52 PM EST	Special Weather Statement	PHI	Burlington, Camden, Gloucester	23 min
Mar 3, 6:17 PM EST	Special Weather Statement	PHI	Burlington, Ocean	28 min
Mar 3, 3:08 PM EST	Special Weather Statement	PHI	Montgomery	37 min
Mar 3, 3:42 PM EST	Special Weather Statement	PHI	Delaware, Montgomery, Philadelphia	33 min

Nearby

Special Weather Statements in New Jersey, 2017 Every special weather statement in 2017

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.