Alert archive / New Jersey / Special Marine Warnings in 2021
Special Marine Warning 33, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special marine warning at Jun 8, 2021, 4:14 PM EDT. It was in force for 91 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
- Jun 8, 2021, 4:14 PM EDT (20:14 UTC)
- Expired
- Jun 8, 2021, 5:45 PM EDT
- In force
- 91 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 49.0 mph
The radar
The Philadelphia radar (KDIX), 53 km from the middle of the area, began a volume at 20:14 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, 8.2 hours before the alert went out and 115 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
- 740 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
819
WHUS51 KPHI 082014
SMWPHI
ANZ450-082145-
/O.NEW.KPHI.MA.W.0033.210608T2014Z-210608T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Mount Holly NJ
414 PM EDT Tue Jun 8 2021
The National Weather Service in Mount Holly NJ has issued a
* Special Marine Warning for...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...
* Until 545 PM EDT.
* At 413 PM EDT, severe thunderstorms were located along a line
extending from Leonardo to near Belmar, moving east at 10 knots.
HAZARD...Wind gusts to nearly 50 knots and large hail.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves. Large hail could result in
structural damage.
* Locations impacted include...
Sea Girt Reef, Leonardo, Shark River Reef, Belmar, Atlantic
Highlands, Manasquan Inlet, Monmouth Beach, Sea Bright, Sandy Hook
Reef, Fair Haven and Point Pleasant Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Boaters should seek safe harbor immediately until these storms pass.
Wind gusts to nearly 50 knots, large hail, high waves, dangerous
lightning, and heavy rain are possible with these storms.
&&
LAT...LON 4044 7399 4026 7365 4000 7371 4013 7414
4020 7411 4024 7405 4027 7405 4031 7412
4034 7414 4036 7413 4042 7406 4040 7398
4042 7398 4042 7400
TIME...MOT...LOC 2013Z 265DEG 10KT 4041 7405 4016 7410
HAIL...>.75IN
WIND...49KTS
$$
Staarmann2 follow-up statements
610
FZUS71 KPHI 082052
MWSPHI
Marine Weather Statement
National Weather Service Mount Holly NJ
452 PM EDT Tue Jun 8 2021
ANZ450-082145-
/O.CON.KPHI.MA.W.0033.000000T0000Z-210608T2145Z/
452 PM EDT Tue Jun 8 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 545 PM EDT...
For the following areas...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...
At 452 PM EDT, severe thunderstorms were located along a line
extending from near Entrance to New York Harbor to Manasquan Inlet,
moving east at 10 knots.
HAZARD...Wind gusts to nearly 50 knots and large hail.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves. Large hail could result in
structural damage.
Locations impacted include...
Sea Girt Reef, Shark River Reef, Belmar, Manasquan Inlet and Point
Pleasant Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
Boaters should seek safe harbor immediately until these storms pass.
Wind gusts to nearly 50 knots, large hail, high waves, dangerous
lightning, and heavy rain are possible with these storms.
&&
LAT...LON 4026 7365 4001 7371 4010 7401 4010 7404
4011 7405 4012 7409 4040 7392
TIME...MOT...LOC 2052Z 275DEG 11KT 4034 7382 4010 7400
HAIL...>.75IN
WIND...49KTS
$$
Staarmann971
FZUS71 KPHI 082118
MWSPHI
Marine Weather Statement
National Weather Service Mount Holly NJ
518 PM EDT Tue Jun 8 2021
ANZ450-082145-
/O.CON.KPHI.MA.W.0033.000000T0000Z-210608T2145Z/
518 PM EDT Tue Jun 8 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 545 PM EDT...
For the following areas...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...
At 517 PM EDT, strong thunderstorms were located along a line
extending from near Entrance to New York Harbor to near Sea Girt
Reef, moving east at 10 knots.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
Locations impacted include...
Sea Girt Reef and Shark River Reef.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 4026 7365 4001 7371 4011 7402 4036 7384
TIME...MOT...LOC 2117Z 265DEG 10KT 4035 7374 4011 7392
HAIL...0.00IN
WIND...>34KTS
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 1:27 PM EDT | Areal Flood Advisory | PHI | Warren | 3 hr |
| Jun 8, 1:49 PM EDT | Special Weather Statement | PHI | Warren | 26 min |
| Jun 8, 1:54 PM EDT | Areal Flood Advisory | PHI | Morris, Sussex | 95 min |
| Jun 8, 2:19 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer | 2 hr |
| Jun 8, 2:29 PM EDT | Special Weather Statement | PHI | Morris | 16 min |
| Jun 8, 2:48 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Somerset | 27 min |
| Jun 8, 3:13 PM EDT | Special Weather Statement | PHI | Hunterdon, Somerset | 32 min |
| Jun 8, 3:14 PM EDT | Areal Flood Advisory | PHI | Middlesex, Somerset | 74 min |
| Jun 8, 4:12 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 48 min |
| Jun 8, 4:44 PM EDT | Special Weather Statement | PHI | Salem | 31 min |
| Jun 8, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 43 min |
| Jun 8, 4:54 PM EDT | Special Marine Warning | PHI | 96 min | |
| Jun 8, 4:56 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Gloucester | 49 min |
| Jun 8, 4:58 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 47 min |
| Jun 8, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 45 min |
| Jun 8, 5:43 PM EDT | Special Weather Statement | PHI | Ocean | 32 min |
| Jun 8, 6:01 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 44 min |
| Jun 8, 6:22 PM EDT | Special Marine Warning | PHI | 83 min | |
| Jun 8, 7:39 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jun 8, 7:52 PM EDT | Special Weather Statement | PHI | Cape May | 38 min |
| Jun 8, 11:54 AM EDT | Areal Flood Advisory | PHI | Monroe | 2 hr |
| Jun 8, 12:34 PM EDT | Flash Flood Warning | PHI | Monroe | 2 hr |
| Jun 8, 12:40 PM EDT | Special Weather Statement | PHI | Monroe | 35 min |
| Jun 8, 1:09 PM EDT | Special Weather Statement | PHI | Monroe | 21 min |
| Jun 8, 1:17 PM EDT | Special Weather Statement | PHI | Chester | 13 min |
| Jun 8, 1:18 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jun 8, 1:24 PM EDT | Special Weather Statement | PHI | Delaware | 21 min |
| Jun 8, 1:35 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 5 hr |
| Jun 8, 2:07 PM EDT | Special Weather Statement | PHI | Bucks | 23 min |
| Jun 8, 2:43 PM EDT | Special Weather Statement | PHI | Montgomery | 32 min |
| Jun 8, 3:15 PM EDT | Special Weather Statement | PHI | Chester | 30 min |
| Jun 8, 3:21 PM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 3 hr |
| Jun 8, 3:43 PM EDT | Special Weather Statement | PHI | Chester | 32 min |
| Jun 8, 4:20 PM EDT | Special Weather Statement | PHI | Chester | 25 min |
| Jun 8, 4:25 PM EDT | River Flood Warning | PHI | Chester | 11 hr |
| Jun 8, 6:21 PM EDT | Areal Flood Warning | PHI | Chester, Delaware | 15 hr |
| Jun 8, 7:14 PM EDT | River Flood Warning | PHI | Chester, Delaware | 18 hr |
| Jun 8, 7:43 PM EDT | Special Weather Statement | PHI | Sussex | 32 min |
Nearby
Special Marine Warnings in New Jersey, 2021Every special marine warning 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.