Alert archive / New Jersey / Special Weather Statements in 2020

Special Weather Statement, NWS Philadelphia/Mount Holly

April 8, 2020Hunterdon County, Mercer County, Middlesex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Apr 8, 2020, 3:13 AM EDT for Hunterdon County, Mercer County, Middlesex County, New Jersey. It was in force for 32 min. 1 report 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 8, 2020, 3:13 AM EDT (07:13 UTC)
Expired: Apr 8, 2020, 3:45 AM EDT
In force: 32 min
Issued by: NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ

The radar

The Philadelphia radar (KDIX), 59 km from the middle of the area, began a volume at 07:14 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.

What was reported inside it

Time	Report	Where	Remark
Apr 8, 3:30 AM EDT	HAIL 0.25	3 Nw Pennington, NJ	MPING REPORT.

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, 7.2 hours before the alert went out and 176 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: 2262 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 237 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

824 
WWUS81 KPHI 080713
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
313 AM EDT Wed Apr 8 2020

NJZ009-010-012-013-015-020-PAZ106-080745-
Hunterdon-Ocean-Western Monmouth-Somerset-Middlesex-Mercer-Lower
Bucks-
313 AM EDT Wed Apr 8 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN OCEAN...
SOUTHEASTERN HUNTERDON...MERCER...SOUTHERN SOMERSET...CENTRAL
MONMOUTH...SOUTHERN MIDDLESEX AND CENTRAL BUCKS COUNTIES...

At 313 AM EDT, a strong thunderstorm was located over Sand Brook, or
16 miles west of Somerville, moving southeast at 55 mph.

Half inch hail is possible with this storm.

Locations impacted include...
New Brunswick, Old Bridge, East Brunswick, South Brunswick, North
Brunswick, Manalapan, Ewing, Princeton, Matawan, Byram, Jamesburg,
Hightstown, Flemington, Cranbury, Pennington, New Hope, Hopewell,
Roosevelt, Rocky Hill and Stockton.

This includes the following highways...
 Interstate 195 in New Jersey between mile markers 7 and 20.
 Interstate 295 in New Jersey between mile markers 64 and 74.
 New Jersey Turnpike between exits 8A and 9.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4011 7439 4034 7497 4036 7498 4038 7507
      4039 7507 4041 7505 4042 7506 4045 7507
      4059 7494 4041 7421
TIME...MOT...LOC 0713Z 292DEG 47KT 4048 7489 

$$

NC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 9:30 PM EDT	Coastal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more	33 hr
Apr 8, 2:30 AM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester	30 min
Apr 8, 2:35 AM EDT	Special Weather Statement	PHI	Camden	25 min
Apr 8, 2:40 AM EDT	Special Weather Statement	PHI	Hunterdon	35 min
Apr 8, 2:51 AM EDT	Special Weather Statement	PHI	Cumberland	24 min
Apr 8, 2:58 AM EDT	Special Weather Statement	PHI	Burlington	32 min
Apr 8, 3:25 AM EDT	Special Weather Statement	PHI	Burlington, Ocean	35 min
Apr 8, 3:50 AM EDT	Gale Watch	PHI		24 hr
Apr 8, 4:21 AM EDT	Special Weather Statement	PHI	Cumberland	39 min
Apr 8, 4:52 AM EDT	Special Marine Warning	PHI		83 min
Apr 8, 4:56 AM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Cumberland	64 min
Apr 8, 3:24 PM EDT	Gale Warning	PHI		58 hr
Apr 8, 7:19 PM EDT	Wind Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	24 hr
Apr 8, 1:53 AM EDT	Special Weather Statement	PHI	Carbon, Lehigh, Northampton	37 min
Apr 8, 1:55 AM EDT	Special Weather Statement	PHI	Chester, Delaware	50 min
Apr 8, 1:59 AM EDT	Special Weather Statement	PHI	Berks	46 min
Apr 7, 11:10 PM EDT	Special Weather Statement	PHI	Sussex	35 min
Apr 7, 11:48 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	27 min
Apr 8, 12:53 AM EDT	Special Weather Statement	PHI	Kent	52 min
Apr 8, 1:06 AM EDT	Special Weather Statement	PHI	New Castle	39 min
Apr 7, 11:21 PM EDT	Special Weather Statement	PHI	Caroline	39 min
Apr 8, 12:09 AM EDT	Special Weather Statement	PHI	Kent, Queen Anne's	51 min

Nearby

Special Weather Statements in New Jersey, 2020 Every special weather statement in 2020

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; radar from the NEXRAD Level II archive.