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 Aug 10, 2021, 2:07 PM EDT for Salem County, New Jersey. It was in force for 38 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 10, 2021, 2:07 PM EDT (18:07 UTC)
- Expired
- Aug 10, 2021, 2:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.25 in
- Wind
- 40
County Salem County, NJ
The radar
The Dover AFB radar (KDOX), 91 km from the middle of the area, began a volume at 18:09 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.1 hours before the alert went out and 185 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
- 529 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 1096 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
238
WWUS81 KPHI 101807
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
207 PM EDT Tue Aug 10 2021
NJZ016-017-101845-
Salem NJ-Gloucester NJ-
207 PM EDT Tue Aug 10 2021
...A strong thunderstorm will impact portions of northwestern Salem
and west central Gloucester Counties through 245 PM EDT...
At 207 PM EDT, Doppler radar was tracking a strong thunderstorm over
Salem, or 10 miles south of Wilmington, moving northeast at 15 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Pennsville, Carneys Point, Salem, Woodstown, Alloway, Quinton and
Beckett.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 295 in New Jersey between mile markers 1 and 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3979 7537 3956 7521 3953 7554 3961 7556
3961 7555 3963 7557
TIME...MOT...LOC 1807Z 238DEG 14KT 3959 7549
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 1:02 AM EDT | Special Weather Statement | PHI | Burlington | 28 min |
| Aug 10, 3:33 AM EDT | Excessive Heat Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more | 4 days |
| Aug 10, 3:33 AM EDT | Heat Advisory | PHI | Atlantic, Cape May, Cumberland, Monmouth, Ocean, Salem and 2 more | 4 days |
| Aug 10, 3:54 AM EDT | Areal Flood Advisory | PHI | Atlantic | 80 min |
| Aug 10, 4:59 AM EDT | Areal Flood Advisory | PHI | Burlington | 60 min |
| Aug 10, 5:58 AM EDT | Flash Flood Warning | PHI | Burlington, Mercer | 2 hr |
| Aug 10, 4:52 PM EDT | Special Weather Statement | PHI | Monmouth | 23 min |
| Aug 10, 4:54 PM EDT | Special Marine Warning | PHI | 26 min | |
| Aug 10, 5:05 PM EDT | Special Weather Statement | PHI | Somerset, Warren | 25 min |
| Aug 10, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Somerset, Warren | 51 min |
| Aug 10, 5:30 PM EDT | Special Weather Statement | PHI | Warren | 30 min |
| Aug 10, 5:58 PM EDT | Special Weather Statement | PHI | Mercer, Middlesex, Morris, Somerset, Warren | 32 min |
| Aug 10, 6:27 PM EDT | Special Weather Statement | PHI | Burlington, Mercer, Middlesex, Monmouth, Morris | 33 min |
| Aug 10, 6:59 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth | 31 min |
| Aug 10, 7:09 PM EDT | Special Marine Warning | PHI | 66 min | |
| Aug 10, 7:27 PM EDT | Special Weather Statement | PHI | Monmouth | 33 min |
| Aug 9, 10:10 PM EDT | Areal Flood Advisory | PHI | Carbon | 3 hr |
| Aug 10, 3:06 PM EDT | Special Weather Statement | PHI | Berks | 24 min |
| Aug 10, 3:33 PM EDT | Special Weather Statement | PHI | Berks | 27 min |
| Aug 10, 3:52 PM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh | 23 min |
| Aug 10, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Chester, Lehigh, Montgomery, Northampton | 44 min |
| Aug 10, 4:18 PM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh | 3 hr |
| Aug 10, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 42 min |
| Aug 10, 5:11 PM EDT | Special Weather Statement | PHI | Chester, Montgomery, Philadelphia | 34 min |
| Aug 10, 5:40 PM EDT | Special Weather Statement | PHI | Chester | 35 min |
| Aug 10, 6:36 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 39 min |
| Aug 10, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 65 min |
| Aug 10, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 51 min |
| Aug 10, 7:12 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's | 33 min |
| Aug 10, 7:42 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's, Talbot | 33 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.