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 Jul 27, 2021, 6:50 PM EDT for Morris County, New Jersey. It was in force for 25 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
- Jul 27, 2021, 6:50 PM EDT (22:50 UTC)
- Expired
- Jul 27, 2021, 7:15 PM EDT
- In force
- 25 min
- Issued by
- NWS Philadelphia/Mount Holly
County Morris County, NJ
The radar
The Philadelphia radar (KDIX), 99 km from the middle of the area, began a volume at 22:49 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, 10.8 hours before the alert went out and 134 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2105 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
792
WWUS81 KPHI 272250
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
650 PM EDT Tue Jul 27 2021
NJZ007>010-PAZ062-272315-
Hunterdon-Morris-Somerset-Warren-Northampton-
650 PM EDT Tue Jul 27 2021
...THE OUTFLOW BOUNDARY FROM PREVIOUS THUNDERSTORMS WILL AFFECT
NORTHEASTERN HUNTERDON...MORRIS... SOUTHERN WARREN...NORTHWESTERN
SOMERSET AND EAST CENTRAL NORTHAMPTON COUNTIES...
At 648 PM EDT, radar and outflow boundary from previous
thunderstorms located along a line extending from near Boonton to
Hackettstown to near Roxburg. Movement was east at 50 mph. Little or
no rain is expected.
Wind gusts up to 40 mph are possible.
Locations impacted include...
Morristown, Dover, Madison, Florham Park, East Hanover, Lincoln Park,
Hackettstown, Chatham, Boonton, Wharton, Washington, Rockaway, Morris
Plains, Mendham, Mountain Lakes, High Bridge, Harmony, Peapack And
Gladstone, Oxford and Glen Gardner.
This includes the following highways...
Interstate 78 in New Jersey between mile markers 23 and 29.
Interstate 80 in New Jersey between mile markers 37 and 48.
Interstate 287 in New Jersey between mile markers 22 and 49.
If outdoors, consider seeking shelter inside a building.
LAT...LON 4091 7434 4083 7433 4079 7437 4076 7438
4075 7436 4069 7444 4063 7474 4078 7529
4085 7484 4095 7432 4094 7428 4092 7429
4091 7427 4090 7427
TIME...MOT...LOC 2248Z 288DEG 43KT 4092 7437 4084 7480 4079 7515
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 24 min |
| Jul 27, 6:07 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 23 min |
| Jul 27, 7:07 PM EDT | Special Weather Statement | PHI | Hunterdon, Somerset | 23 min |
| Jul 27, 7:25 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Ocean | 35 min |
| Jul 27, 7:28 PM EDT | Special Weather Statement | PHI | Hunterdon, Middlesex, Somerset | 32 min |
| Jul 27, 7:22 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 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.