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, 6:27 PM EDT for 5 counties in New Jersey. It was in force for 33 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, 6:27 PM EDT (22:27 UTC)
- Expired
- Aug 10, 2021, 7:00 PM EDT
- In force
- 33 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.25 in
- Wind
- 40
Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ
The radar
The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 22:27 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, 10.5 hours before the alert went out and 131 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
- 73 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
293
WWUS81 KPHI 102227
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
627 PM EDT Tue Aug 10 2021
NJZ008-010-012>015-018>020-027-PAZ071-106-102300-
Morris NJ-Northwestern Burlington NJ-Eastern Monmouth NJ-Camden NJ-
Ocean NJ-Western Monmouth NJ-Somerset NJ-Middlesex NJ-Mercer NJ-
Southeastern Burlington NJ-Lower Bucks PA-Philadelphia PA-
627 PM EDT Tue Aug 10 2021
...Strong thunderstorms will impact portions of northwestern Ocean,
Morris, northwestern Camden, Mercer, northern Burlington, eastern
Somerset, Monmouth, Middlesex, southeastern Bucks and central
Philadelphia Counties through 700 PM EDT...
At 626 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Mendham to Edison to Kensington. Movement was
east at 45 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...
Philadelphia, Trenton, Camden, New Brunswick, Perth Amboy, Long
Branch, Morristown, Gloucester City, Somerset, Edison, Cherry Hill,
Middletown, Old Bridge, Bensalem, Jackson, Howell, East Brunswick,
Evesham, South Brunswick and Sayreville.
This includes the following highways...
New Jersey Turnpike between exits 4 and 13.
Pennsylvania Turnpike between mile markers 352 and 359.
Interstate 95 in Pennsylvania between mile markers 19 and 40.
Interstate 76 in Pennsylvania between mile markers 344 and 351.
Interstate 76 in New Jersey between mile markers 2 and 3.
Interstate 78 in New Jersey between mile markers 37 and 42.
Interstate 80 in New Jersey between mile markers 26 and 47.
Interstate 195 in New Jersey between mile markers 0 and 29.
Interstate 295 in New Jersey between mile markers 33 and 71.
Interstate 287 in New Jersey between mile markers 0 and 6, and
between mile markers 27 and 53.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 1 and 4.
Garden State Parkway between mile markers 105 and 134.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4034 7397 3983 7464 3992 7525 4054 7444
4091 7477 4090 7471 4094 7465 4100 7430
4090 7427 4091 7434 4075 7436 4067 7446
4065 7440 4060 7446 4060 7421 4050 7428
4047 7427 4041 7399 4048 7402 4047 7400
TIME...MOT...LOC 2226Z 273DEG 38KT 4079 7459 4054 7437 3997 7511
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, 2:07 PM EDT | Special Weather Statement | PHI | Salem | 38 min |
| 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, 6:59 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.