Alert archive / New Jersey / Special Weather Statements in 2021
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Jun 30, 2021, 7:53 PM EDT for Morris County, New Jersey. It was in force for 37 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
- Jun 30, 2021, 7:53 PM EDT (23:53 UTC)
- Expired
- Jun 30, 2021, 8:30 PM EDT
- In force
- 37 min
- Issued by
- NWS Philadelphia/Mount Holly
County Morris County, NJ
The radar
The Philadelphia radar (KDIX), 104 km from the middle of the area, began a volume at 23:54 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, 11.9 hours before the alert went out and 126 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
- 658 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1595 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
950
WWUS81 KPHI 302353
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
753 PM EDT Wed Jun 30 2021
NJZ008-010030-
Morris-
753 PM EDT Wed Jun 30 2021
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN MORRIS COUNTY...
At 752 PM EDT, a strong thunderstorm was located over Morris Plains,
or over Morristown, moving northeast at 25 mph. Downpours and wind
gusts up to 35 mph are possible.
Locations impacted include...
Morristown, Dover, Madison, Florham Park, East Hanover, Lincoln Park,
Kinnelon, Boonton, Butler, Wharton, Rockaway, Morris Plains, Mountain
Lakes, Riverdale, Victory Gardens, Parsippany, Pequannock Township,
Succasunna-Kenvil, White Meadow Lake and Hanover Township.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 36 and 48.
Interstate 287 in New Jersey between mile markers 31 and 54.
LAT...LON 4091 7434 4088 7434 4086 7432 4082 7434
4079 7437 4076 7437 4071 7452 4087 7463
4101 7435 4100 7430 4097 7428 4092 7429
4090 7427
TIME...MOT...LOC 2352Z 240DEG 24KT 4082 7450
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 3:19 PM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more | 26 hr |
| Jun 30, 7:03 PM EDT | Special Weather Statement | PHI | Berks | 42 min |
Nearby
Special Weather Statements in New Jersey, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.