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 Apr 21, 2021, 2:03 PM EDT for Cumberland County, New Jersey. It was in force for 27 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 21, 2021, 2:03 PM EDT (18:03 UTC)
- Expired
- Apr 21, 2021, 2:30 PM EDT
- In force
- 27 min
- Issued by
- NWS Philadelphia/Mount Holly
County Cumberland County, NJ
The radar
The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 18:06 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 21, 2:20 PM EDT | TSTM WND GST 54 | 1 W Millville Municipal, NJ | ASOS STATION KMIV MILLVILLE. |
| Apr 21, 2:23 PM EDT | HAIL 1 | Millville, NJ | |
| Apr 21, 2:24 PM EDT | HAIL 0.88 | 1 Wsw Millville, NJ | SOCIAL MEDIA. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 6.1 hours before the alert went out and 163 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
- 12 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1437 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
062
WWUS81 KPHI 211803
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
203 PM EDT Wed Apr 21 2021
NJZ021-211830-
Cumberland-
203 PM EDT Wed Apr 21 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CUMBERLAND COUNTY...
At 203 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Greenwich to Dover Base Housing. Movement
was east at 50 mph.
Wind gusts up to 50 mph and half inch hail are possible with these
storms.
Locations impacted include...
Vineland, Millville, Bridgeton, Cumberland, Laurel Lake, Greenwich,
Newport, Mauricetown, Leesburg, Port Norris, Dividing Creek, Fairton,
Bricksboro, Cedarville, Port Elizabeth, Bivalve, Fortesque, South
Vineland and Rosenhayn.
If outdoors, consider seeking shelter inside a building.
LAT...LON 3918 7497 3919 7523 3942 7540 3948 7512
3946 7508 3949 7507 3951 7498 3947 7492
TIME...MOT...LOC 1803Z 250DEG 44KT 3939 7533 3913 7548
$$
JEOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 8:48 PM EDT | Freeze Watch | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 7 hr |
| Apr 21, 3:26 AM EDT | Freeze Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 30 hr |
| Apr 21, 12:25 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 50 min |
| Apr 21, 12:51 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 21 min |
| Apr 21, 12:55 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 27 min |
| Apr 21, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Mercer, Salem | 50 min |
| Apr 21, 1:17 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Somerset, Sussex | 58 min |
| Apr 21, 1:28 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 36 min |
| Apr 21, 1:30 PM EDT | Special Marine Warning | PHI | 60 min | |
| Apr 21, 1:43 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 33 min |
| Apr 21, 1:58 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Monmouth, Ocean | 62 min |
| Apr 21, 2:02 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Monmouth, Ocean | 43 min |
| Apr 21, 2:17 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Gloucester, Salem | 43 min |
| Apr 21, 2:28 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth | 47 min |
| Apr 21, 2:30 PM EDT | Special Marine Warning | PHI | 60 min | |
| Apr 21, 2:38 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 37 min |
| Apr 21, 2:40 PM EDT | Special Marine Warning | PHI | 55 min | |
| Apr 21, 2:43 PM EDT | Special Weather Statement | PHI | Cape May | 32 min |
| Apr 21, 2:50 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 40 min |
| Apr 21, 3:02 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 28 min |
| Apr 21, 3:07 PM EDT | Special Marine Warning | PHI | 53 min | |
| Apr 21, 12:03 PM EDT | Special Weather Statement | PHI | Chester, Lehigh | 42 min |
| Apr 21, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 43 min |
| Apr 21, 12:54 PM EDT | Special Weather Statement | PHI | Delaware | 36 min |
| Apr 21, 1:23 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 37 min |
| Apr 21, 2:09 PM EDT | Special Weather Statement | PHI | Sussex | 36 min |
| Apr 21, 2:18 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 42 min |
| Apr 21, 2:47 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 16 min |
| Apr 21, 12:50 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 40 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.