Alert archive / New Jersey / Special Marine Warnings in 2022

Special Marine Warning 21, NWS Philadelphia/Mount Holly

April 1, 2022

NWS Philadelphia/Mount Holly issued this special marine warning at Apr 1, 2022, 4:26 PM EDT. It was in force for 49 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
Apr 1, 2022, 4:26 PM EDT (20:26 UTC)
Expired
Apr 1, 2022, 5:15 PM EDT
In force
49 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), 56 km from the middle of the area, began a volume at 20:29 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.4 hours before the alert went out and 272 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.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2022-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2022-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.1939587897117136156175Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
681 m above ground
0-6 km bulk shear
94 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

249 
WHUS51 KPHI 012026
SMWPHI
ANZ450-451-470-471-012115-
/O.NEW.KPHI.MA.W.0021.220401T2026Z-220401T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Mount Holly NJ
426 PM EDT Fri Apr 1 2022

The National Weather Service in Mount Holly NJ has issued a

* Special Marine Warning for...
  Coastal and outer waters from Sandy Hook to Little Egg Inlet NJ...

* Until 515 PM EDT.

* At 426 PM EDT, a shower was located over Axel Carlson Reef, moving
  east at 40 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, Shark River Reef, Point Pleasant Beach, Belmar,
  Manasquan Inlet, Axel Carlson Reef, Lavallette and Seaside Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 3994 7412 4023 7406 4021 7360 3994 7337
      3984 7332
TIME...MOT...LOC 2026Z 272DEG 41KT 4007 7400 

HAIL...0.00IN
WIND...40KTS

$$

Gorse
2 follow-up statements
926 
FZUS71 KPHI 012043
MWSPHI

Marine Weather Statement
National Weather Service Mount Holly NJ
443 PM EDT Fri Apr 1 2022

ANZ450-451-470-471-012115-
/O.CON.KPHI.MA.W.0021.000000T0000Z-220401T2115Z/
443 PM EDT Fri Apr 1 2022

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 515 PM EDT...

For the following areas...
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 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 443 PM EDT, a shower was located near Shark River Reef, moving
east at 40 knots.

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 and Shark River Reef. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 3993 7401 4022 7391 4021 7360 3994 7337
      3984 7332
TIME...MOT...LOC 2043Z 272DEG 40KT 4005 7371 

HAIL...0.00IN
WIND...40KTS

$$

Gorse
805 
FZUS71 KPHI 012108
MWSPHI

Marine Weather Statement
National Weather Service Mount Holly NJ
508 PM EDT Fri Apr 1 2022

ANZ450-451-470-471-012117-
/O.EXP.KPHI.MA.W.0021.000000T0000Z-220401T2115Z/
508 PM EDT Fri Apr 1 2022

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 515 PM EDT...

The affected areas were... 
Coastal and outer waters from Sandy Hook to Little Egg Inlet NJ...

The shower will continue to move out of the area and therefore this 
warning will be allowed to expire.

LAT...LON 3993 7401 4022 7391 4021 7360 3994 7337
      3984 7332
TIME...MOT...LOC 2107Z 268DEG 33KT 4007 7350 

$$

Gorse

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 8:04 PM EDTSevere Thunderstorm WarningPHISussex, Warren41 min
Mar 31, 8:05 PM EDTSpecial Marine WarningPHI55 min
Mar 31, 8:40 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Sussex, Warren50 min
Mar 31, 8:41 PM EDTSpecial Marine WarningPHI64 min
Mar 31, 9:12 PM EDTFlash Flood WarningPHIMorris, Warren2 hr
Mar 31, 9:27 PM EDTSpecial Marine WarningPHI41 min
Mar 31, 9:36 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Morris, Somerset, Warren54 min
Mar 31, 10:23 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Somerset25 min
Mar 31, 11:46 PM EDTCoastal Flood StatementPHIOcean2 hr
Apr 1, 2:01 AM EDTGale WarningPHI20 hr
Mar 31, 8:14 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh, Northampton46 min
Mar 31, 8:47 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Chester, Lehigh, Montgomery58 min
Mar 31, 9:49 PM EDTTornado WarningPHIBucks16 min
Mar 31, 10:21 PM EDTAreal Flood AdvisoryPHIBucks, Chester, Delaware, Montgomery61 min

Nearby

Special Marine Warnings in New Jersey, 2022Every special marine warning in 2022

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.