Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

April 28, 2021Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Apr 28, 2021, 8:05 PM EDT for Sussex County, New Jersey. It was in force for 40 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: Apr 28, 2021, 8:05 PM EDT (00:05 UTC)
Expired: Apr 28, 2021, 8:45 PM EDT
In force: 40 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, NJ

What was reported inside it

Time	Report	Where	Remark
Apr 28, 8:30 PM EDT	TSTM WND DMG	2 Ssw Sussex, NJ	SOME TREES DOWN IN THE VICINITY OF OPSAL LANE IN THE SOUTHERN PORTION OF WANTAGE TOWNSHIP. POWER OUTAGES REPORTED. TIME ESTIMATED FROM RADAR.
Apr 28, 8:43 PM EDT	TSTM WND DMG	2 Ne Hamburg, NJ	TREES DOWN IN THE VICINITY OF EVERGREEN TRAIL IN VERNON TOWNSHIP. POWER OUTAGES REPORTED. TIME ESTIMATED FROM RADAR.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.1 hours before the alert went out and 160 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: 1815 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 311 m²/s²
0-3 km storm-relative helicity: 286 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

944 
WWUS81 KPHI 290005
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
805 PM EDT Wed Apr 28 2021

NJZ001-290045-
Sussex-
805 PM EDT Wed Apr 28 2021

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

At 805 PM EDT, a strong thunderstorm was located 7 miles south of
Greeley, or 8 miles west of Montague, moving east at 45 mph.

Wind gusts of 40 to 50 mph and half inch hail are possible with this 
storm.

Locations impacted include...
Montague, Franklin, Hamburg, Ogdensburg, Sussex, Branchville, High
Point, Pellettown, Crandon Lakes, Highland Lake, Vernon Valley and
Hainesville.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4120 7436 4103 7457 4112 7495 4118 7488
      4121 7486 4124 7486 4129 7483 4135 7475
      4136 7470
TIME...MOT...LOC 0005Z 279DEG 41KT 4132 7495 

$$

Gorse

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 8:17 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	43 min
Apr 28, 9:01 PM EDT	Special Weather Statement	PHI	Passaic	29 min
Apr 29, 3:29 AM EDT	Small Craft Advisory	PHI		27 hr
Apr 29, 3:29 AM EDT	Storm Watch	PHI		21 hr
Apr 29, 3:32 AM EDT	High Wind Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	16 hr
Apr 29, 3:47 PM EDT	Gale Warning	PHI		23 hr
Apr 29, 7:23 PM EDT	High Wind Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	26 hr
Apr 29, 7:45 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	45 min

Nearby

Special Weather Statements in New Jersey, 2021 Every special weather statement in 2021

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.