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 Oct 5, 2021, 2:51 AM EDT for Atlantic County, New Jersey. It was in force for 39 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
- Oct 5, 2021, 2:51 AM EDT (06:51 UTC)
- Expired
- Oct 5, 2021, 3:30 AM EDT
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.00 in
- Wind
- 40
County Atlantic County, NJ
The radar
The Philadelphia radar (KDIX), 42 km from the middle of the area, began a volume at 06:54 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 6.9 hours before the alert went out and 199 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
- 1077 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1040 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
946
WWUS81 KPHI 050651
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
251 AM EDT Tue Oct 5 2021
NJZ022-027-050730-
Atlantic NJ-Southeastern Burlington NJ-
251 AM EDT Tue Oct 5 2021
...A strong thunderstorm will impact portions of central Atlantic and
southeastern Burlington Counties through 330 AM EDT...
At 251 AM EDT, Doppler radar was tracking a strong thunderstorm over
Weymouth, or 12 miles northeast of Vineland, moving northeast at 20
mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Hammonton, Egg Harbor City, Weymouth, Port Republic, Wharton State
Forest, Elwood-Magnolia, Wading River, Bass River State Forest,
Batsto, Chatsworth, Mizpah, New Gretna, Penn State Forest, Mays
Landing, Folsom and Collings Lakes.
This includes the following highways...
Garden State Parkway between mile markers 50 and 55.
Atlantic City Expressway between mile markers 15 and 28.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
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 3958 7440 3943 7480 3958 7492 3959 7490
3983 7451 3967 7439
TIME...MOT...LOC 0651Z 238DEG 18KT 3955 7478
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 12:49 AM EDT | Special Weather Statement | PHI | Salem | 26 min |
| Oct 5, 2:10 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Oct 5, 2:27 AM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 3 hr |
| Oct 5, 3:20 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Ocean | 3 hr |
| Oct 5, 3:33 AM EDT | Special Weather Statement | PHI | Atlantic | 57 min |
| Oct 5, 12:32 AM EDT | Special Weather Statement | PHI | Chester | 43 min |
| Oct 5, 1:24 AM EDT | Special Weather Statement | PHI | Montgomery | 36 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.