Alert archive / New Jersey / Special Marine Warnings in 2021
Special Marine Warning 56, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special marine warning at Jun 22, 2021, 2:27 PM EDT. It was in force for 93 min. 1 report 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
- Jun 22, 2021, 2:27 PM EDT (18:27 UTC)
- Expired
- Jun 22, 2021, 4:00 PM EDT
- In force
- 93 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.0 in
- Wind
- 40.0 mph
The radar
The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 18:26 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 |
|---|---|---|---|
| Jun 22, 2:30 PM EDT | MARINE TSTM WIND 44 | 3 Sw Beach Haven, NJ | GUST MEASURED AT GAGE ON MCKINLEY AVENUE IN SOUTH BEACH HAVEN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.5 hours before the alert went out and 164 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
- 162 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
779
WHUS51 KPHI 221827
SMWPHI
ANZ450>452-470>473-222000-
/O.NEW.KPHI.MA.W.0056.210622T1827Z-210622T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Mount Holly NJ
227 PM EDT Tue Jun 22 2021
The National Weather Service in Mount Holly NJ has issued a
* Special Marine Warning for...
Coastal waters from Sandy Hook to Great Egg Inlet NJ out 20 nm...
Outer waters from Sandy Hook to Cape May NJ out 20 to 40 nm...
* Until 400 PM EDT.
* At 226 PM EDT, strong thunderstorms were located along a line
extending from near Seaside Park to near Great Egg Inlet, moving
northeast at 50 knots. Gauges in the Beach Haven area continue to
report gusts in excess of 34 knots.
HAZARD...Wind gusts to 40 knots.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
* Locations impacted include...
Sea Girt Reef, Atlantic City, Ship Bottom, Garden State South Reef,
Axel Carlson Reef, Silverton, Harvey Cedars, Lavallette, Barnegat
Light, North Beach Haven, Point Pleasant Beach, Seaside Park,
Brigantine, Ocean Gate, Little Egg Reef, Atlantic City Reef,
Barnegat Light Reef, Forked River, Beach Haven and Garden State
North Reef.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 3966 7331 3949 7337 3900 7372 3940 7460
3947 7450 3951 7454 3961 7447 3960 7439
3970 7426 3982 7427 3990 7420 3995 7425
4022 7407 3998 7340 3982 7331
TIME...MOT...LOC 1826Z 227DEG 48KT 3992 7398 3926 7447
HAIL...0.00IN
WIND...40KTS
$$
CMS4 follow-up statements
767
FZUS71 KPHI 221856
MWSPHI
Marine Weather Statement
National Weather Service Mount Holly NJ
256 PM EDT Tue Jun 22 2021
ANZ450>452-470>473-222000-
/O.CON.KPHI.MA.W.0056.000000T0000Z-210622T2000Z/
256 PM EDT Tue Jun 22 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 400 PM EDT...
For the following areas...
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20
nm...
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20
nm...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...
Waters from Great Egg Inlet NJ to Cape May NJ out 20 to 40 nm...
Waters from Little Egg Inlet NJ to Great Egg Inlet NJ out 20 to 40 nm
from 20 to 40 NM...
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ out 20 to 40
nm...
Waters from Sandy Hook NJ to Manasquan Inlet NJ out 20 to 40 nm...
At 254 PM EDT, strong thunderstorms were located along a line
extending from near Shark River Reef to near Little Egg Reef, moving
northeast at 50 knots. The strongest winds are likely to the east of
this line of storms, but frequent gusts above 30 knots are occurring
along and behind the line as well.
HAZARD...Wind gusts to 40 knots.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
Locations impacted include...
Sea Girt Reef, Atlantic City, Ship Bottom, Garden State South Reef,
Axel Carlson Reef, Silverton, Harvey Cedars, Lavallette, Barnegat
Light, North Beach Haven, Point Pleasant Beach, Seaside Park,
Brigantine, Ocean Gate, Little Egg Reef, Atlantic City Reef, Barnegat
Light Reef, Forked River, Beach Haven and Garden State North Reef.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 3966 7331 3949 7337 3900 7372 3940 7460
3947 7450 3951 7454 3961 7447 3960 7439
3970 7426 3982 7427 3990 7420 3995 7425
4022 7407 3998 7340 3982 7331
TIME...MOT...LOC 1854Z 227DEG 48KT 4016 7365 3950 7414
HAIL...0.00IN
WIND...40KTS
$$
CMS423
FZUS71 KPHI 221919
MWSPHI
Marine Weather Statement
National Weather Service Mount Holly NJ
319 PM EDT Tue Jun 22 2021
ANZ473-221928-
/O.CAN.KPHI.MA.W.0056.000000T0000Z-210622T2000Z/
319 PM EDT Tue Jun 22 2021
...THE SPECIAL MARINE WARNING IS CANCELLED...
The affected areas were...
Outer waters from Great Egg Inlet to Cape May NJ out 20 to 40 nm...
The thunderstorms have moved out of the warned area and no longer
pose a significant threat to boaters.
LAT...LON 3949 7337 3900 7372 3940 7460 3947 7450
3960 7439 3986 7405 4011 7378 3998 7340
3982 7331 3966 7331
TIME...MOT...LOC 1918Z 276DEG 24KT 3992 7365 3926 7414
$$
ANZ450>452-470>472-222000-
/O.CON.KPHI.MA.W.0056.000000T0000Z-210622T2000Z/
319 PM EDT Tue Jun 22 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 400 PM EDT...
For the following areas...
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20
nm...
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20
nm...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...
Waters from Little Egg Inlet NJ to Great Egg Inlet NJ out 20 to 40 nm
from 20 to 40 NM...
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ out 20 to 40
nm...
Waters from Sandy Hook NJ to Manasquan Inlet NJ out 20 to 40 nm...
At 318 PM EDT, strong thunderstorms were located along a line
extending from 12 nm south of Shark River Reef to 6 nm east of
Atlantic City Reef, moving east at 25 knots.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
Locations impacted include...
Atlantic City, Little Egg Reef, Atlantic City Reef, Ship Bottom,
Barnegat Light Reef, Garden State South Reef, Harvey Cedars, Beach
Haven, Barnegat Light, North Beach Haven, Garden State North Reef,
Little Egg Inlet, Brigantine and Forked River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 3949 7337 3900 7372 3940 7460 3947 7450
3960 7439 3986 7405 4011 7378 3998 7340
3982 7331 3966 7331
TIME...MOT...LOC 1918Z 276DEG 24KT 3992 7365 3926 7414
HAIL...0.00IN
WIND...>34KTS
$$
CMS961
FZUS71 KPHI 221940
MWSPHI
Marine Weather Statement
National Weather Service Mount Holly NJ
340 PM EDT Tue Jun 22 2021
ANZ450>452-470>472-222000-
/O.CON.KPHI.MA.W.0056.000000T0000Z-210622T2000Z/
340 PM EDT Tue Jun 22 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 400 PM EDT...
For the following areas...
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20
nm...
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20
nm...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...
Waters from Little Egg Inlet NJ to Great Egg Inlet NJ out 20 to 40 nm
from 20 to 40 NM...
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ out 20 to 40
nm...
Waters from Sandy Hook NJ to Manasquan Inlet NJ out 20 to 40 nm...
At 339 PM EDT, strong thunderstorms were located along a line
extending from 13 nm east of Shark River Reef to 12 nm southeast of
Garden State South Reef, moving northeast at 50 knots. The strongest
winds are likely well in advance of the line, and should spread east
of the nearshore waters within the next half hour.
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...
Garden State North Reef, Garden State South Reef and Little Egg Reef.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 3923 7356 3944 7429 3978 7405 4011 7378
3998 7340 3982 7331 3966 7331 3949 7337
TIME...MOT...LOC 1939Z 227DEG 48KT 4009 7341 3943 7391
HAIL...0.00IN
WIND...>34KTS
$$
CMS567
FZUS71 KPHI 221956
MWSPHI
Marine Weather Statement
National Weather Service Mount Holly NJ
356 PM EDT Tue Jun 22 2021
ANZ450>452-470>472-222005-
/O.EXP.KPHI.MA.W.0056.000000T0000Z-210622T2000Z/
356 PM EDT Tue Jun 22 2021
...THE SPECIAL MARINE WARNING WILL EXPIRE AT 400 PM EDT...
The affected areas were...
Coastal and outer waters from Sandy Hook to Great Egg Inlet NJ...
The thunderstorms have weakened and no longer pose a significant
threat to boaters.
LAT...LON 3923 7356 3944 7429 3978 7405 4011 7378
3998 7340 3982 7331 3966 7331 3949 7337
TIME...MOT...LOC 1955Z 227DEG 48KT 4023 7321 3957 7371
$$
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 8:13 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 62 min |
| Jun 21, 8:31 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jun 21, 10:01 PM EDT | Special Marine Warning | PHI | 29 min | |
| Jun 22, 11:46 AM EDT | Special Marine Warning | PHI | 44 min | |
| Jun 22, 12:51 PM EDT | Special Marine Warning | PHI | 114 min | |
| Jun 22, 1:25 PM EDT | Special Marine Warning | PHI | 65 min | |
| Jun 22, 1:47 PM EDT | Special Marine Warning | PHI | 118 min | |
| Jun 22, 3:05 PM EDT | Small Craft Advisory | PHI | 15 hr | |
| Jun 22, 3:26 PM EDT | Special Marine Warning | PHI | 68 min | |
| Jun 21, 9:28 PM EDT | Special Weather Statement | PHI | Kent | 47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.