Alert archive / New Jersey / Special Weather Statements in 2017
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 5, 2017, 3:32 AM EDT for 5 counties in New Jersey. It was in force for 58 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
- Aug 5, 2017, 3:32 AM EDT (07:32 UTC)
- Expired
- Aug 5, 2017, 4:30 AM EDT
- In force
- 58 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ
The radar
The Philadelphia radar (KDIX), 33 km from the middle of the area, began a volume at 07:32 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, 7.5 hours before the alert went out and 188 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.
- Mixed-layer CAPE
- 425 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
606
WWUS81 KPHI 050732
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
332 AM EDT SAT AUG 5 2017
NJZ009-010-012-013-015>020-027-PAZ071-106-050830-
Salem-Camden-Southeastern Burlington-Mercer-Hunterdon-Northwestern
Burlington-Ocean-Western Monmouth-Somerset-Middlesex-Gloucester-Lower
Bucks-Philadelphia-
332 AM EDT SAT AUG 5 2017
...A LINE OF HEAVY SHOWERS AND EMBEDDED THUNDERSTORMS WILL AFFECT
NORTHWESTERN OCEAN... CAMDEN...MERCER...SOUTHEASTERN SOMERSET...
NORTHEASTERN SALEM...SOUTHERN HUNTERDON...CENTRAL GLOUCESTER...
BURLINGTON...SOUTHWESTERN MONMOUTH...SOUTHWESTERN MIDDLESEX...
SOUTHEASTERN BUCKS AND CENTRAL PHILADELPHIA COUNTIES...
At 329 AM EDT, radar indicated heavy showers and embedded
thunderstorms were located along a line extending from near New Hope
to Tullytown to near Willingboro to Woodstown. Movement was east at
25 mph.
Local winds gusts to 30 mph are possible with these storms,
especially with the leading edge of the rain.
Locations impacted include...
Philadelphia, Trenton, Camden, New Brunswick, Gloucester City, Cherry
Hill, Old Bridge, Bensalem, Jackson, East Brunswick, Evesham, South
Brunswick, Mount Laurel, North Brunswick, Manalapan, Ewing,
Willingboro, Deptford, Voorhees and Medford.
Heavy rainfall is occurring with these showers and storms, and may
cause localized flooding and will result in times of significantly
reduced visibilities. Do not drive your vehicle through flooded
roadways.
Occasional cloud to ground lightning is occurring. Lightning can
strike 10 miles away from a thunderstorm. Seek a safe shelter inside
a building or vehicle.
LAT...LON 3964 7486 3963 7540 3998 7507 4016 7495
4036 7499 4050 7439 4020 7430 4002 7428
TIME...MOT...LOC 0729Z 261DEG 23KT 4038 7491 4016 7481 3999 7490 3965
7536
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 1:42 AM EDT | Special Weather Statement | PHI | Hunterdon, Warren | 48 min |
| Aug 5, 4:15 AM EDT | Special Weather Statement | PHI | Middlesex, Monmouth | 45 min |
| Aug 5, 4:42 AM EDT | Special Marine Warning | PHI | 63 min | |
| Aug 5, 3:24 PM EDT | Small Craft Advisory | PHI | 12 hr | |
| Aug 4, 11:36 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 69 min |
| Aug 4, 11:49 PM EDT | Special Weather Statement | PHI | Carbon, Lehigh | 56 min |
| Aug 5, 12:10 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 51 min |
| Aug 5, 1:59 AM EDT | Special Weather Statement | PHI | Chester, Montgomery | 46 min |
| Aug 5, 2:38 AM EDT | Special Weather Statement | PHI | Chester | 52 min |
| Aug 5, 2:41 AM EDT | Special Weather Statement | PHI | Bucks, Montgomery, Philadelphia | 49 min |
Nearby
Special Weather Statements in New Jersey, 2017Every 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.