Alert archive / New Jersey / Special Weather Statements in 2018

Special Weather Statement, NWS Philadelphia/Mount Holly

April 4, 2018Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Apr 4, 2018, 2:56 AM EDT for Sussex County, New Jersey. It was in force for 34 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: Apr 4, 2018, 2:56 AM EDT (06:56 UTC)
Expired: Apr 4, 2018, 3:30 AM EDT
In force: 34 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 140 km from the middle of the area, began a volume at 06:56 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 00:00Z, 6.9 hours before the alert went out and 156 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 411 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 531 m²/s²
0-3 km storm-relative helicity: 692 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

986 
WWUS81 KPHI 040656
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
256 AM EDT WED APR 4 2018

NJZ001-040730-
Sussex-
256 AM EDT WED APR 4 2018

...A STRONG THUNDERSTORM WILL AFFECT SUSSEX COUNTY...

At 255 AM EDT, a strong thunderstorm was located near Pellettown, or
near Newton, moving northeast at 65 mph.

Locations impacted include...
Newton, Hopatcong, Franklin, Hamburg, Ogdensburg, Sussex,
Branchville, High Point, Lake Mohawk, Vernon Valley, Pellettown,
Highland Lake, Hainesville, Upper Greenwood Lake and Crandon Lakes.

Gusty winds and downpours will occur in these areas. 

LAT...LON 4121 7439 4120 7437 4100 7460 4096 7469
      4119 7488 4121 7486 4123 7487 4126 7484
      4127 7484 4135 7466
TIME...MOT...LOC 0655Z 238DEG 58KT 4111 7469 

$$

PO

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 9:42 PM EDT	Marine Dense Fog Advisory	PHI		14 hr
Apr 4, 12:01 AM EDT	Dense Fog Advisory	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more	10 hr
Apr 4, 3:44 AM EDT	High Wind Warning	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Morris and 3 more	16 hr
Apr 4, 12:29 PM EDT	Special Weather Statement	PHI	Camden	31 min
Apr 4, 12:39 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more	51 min
Apr 4, 12:54 PM EDT	Special Marine Warning	PHI		96 min
Apr 4, 1:07 PM EDT	Special Marine Warning	PHI		113 min
Apr 4, 1:13 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Cumberland	62 min
Apr 4, 1:26 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Middlesex, Monmouth, Ocean	49 min
Apr 4, 1:46 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cumberland	4 hr
Apr 4, 1:46 PM EDT	Special Marine Warning	PHI		59 min
Apr 4, 2:15 PM EDT	Special Weather Statement	PHI	Cape May, Ocean	30 min
Apr 4, 2:45 PM EDT	Special Marine Warning	PHI		90 min
Apr 4, 2:58 PM EDT	Special Marine Warning	PHI		92 min
Apr 4, 12:49 PM EDT	Special Weather Statement	PHI	Kent	26 min
Apr 4, 2:17 PM EDT	Special Weather Statement	PHI	Sussex	43 min

Nearby

Special Weather Statements in New Jersey, 2018 Every special weather statement in 2018

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.