Special Marine Warning 42, NWS Philadelphia/Mount Holly

Issued

Jun 9, 2021, 7:42 PM EDT (23:42 UTC)

Expired

Jun 9, 2021, 8:45 PM EDT

In force

63 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Hail

0.75 in

Wind

40.0 mph

The Philadelphia radar (KDIX), 37 km from the middle of the area, began a volume at 23:42 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.

080 
WHUS51 KPHI 092342
SMWPHI
ANZ451-471-100045-
/O.NEW.KPHI.MA.W.0042.210609T2342Z-210610T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Mount Holly NJ
742 PM EDT Wed Jun 9 2021

The National Weather Service in Mount Holly NJ has issued a

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

* Until 845 PM EDT.

* At 742 PM EDT, a strong thunderstorm was located over Barnegat
  Light Reef, moving south at 20 knots.

  HAZARD...Wind gusts to 40 knots and small hail.

  SOURCE...Radar. This storm has a history of producing wind gusts 
           to around 40 knots.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves.

* Locations impacted include...
  Barnegat Light, North Beach Haven, Garden State North Reef, Ship
  Bottom, Barnegat Light Reef, Harvey Cedars, Forked River and
  Seaside Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent lightning is occurring with this storm. If caught on the
open water, stay below deck if possible and keep away from ungrounded
metal objects.

&&

LAT...LON 3991 7414 3994 7392 3952 7369 3960 7430
TIME...MOT...LOC 2342Z 342DEG 20KT 3984 7403 

HAIL...<.75IN
WIND...40KTS

$$

JEO

515 
FZUS71 KPHI 100017
MWSPHI

Marine Weather Statement
National Weather Service Mount Holly NJ
817 PM EDT Wed Jun 9 2021

ANZ451-471-100045-
/O.CON.KPHI.MA.W.0042.000000T0000Z-210610T0045Z/
817 PM EDT Wed Jun 9 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 845 PM EDT...

For the following areas...
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20
nm...
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ out 20 to 40
nm...

At 817 PM EDT, a strong thunderstorm was located near Garden State
North Reef, moving south at 20 knots.

HAZARD...Wind gusts to 40 knots and small hail.

SOURCE...Buoy.

IMPACT...Small craft could be damaged in briefly higher winds and 
         suddenly higher waves.

Locations impacted include...
Barnegat Light, North Beach Haven, Garden State North Reef, Ship
Bottom, Barnegat Light Reef, Harvey Cedars and Forked River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent lightning is occurring with this storm. If caught on the
open water, stay below deck if possible and keep away from ungrounded
metal objects.

&&

LAT...LON 3984 7416 3985 7388 3952 7369 3960 7430
TIME...MOT...LOC 0017Z 342DEG 20KT 3965 7395 

HAIL...<.75IN
WIND...40KTS

$$

JEO

551 
FZUS71 KPHI 100039
MWSPHI

Marine Weather Statement
National Weather Service Mount Holly NJ
839 PM EDT Wed Jun 9 2021

ANZ451-471-100049-
/O.EXP.KPHI.MA.W.0042.000000T0000Z-210610T0045Z/
839 PM EDT Wed Jun 9 2021

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 845 PM EDT...

The affected areas were... 

Coastal and outer waters from Manasquan Inlet to Little Egg Inlet
NJ...

The thunderstorm has moved out of the area and no longer poses a
significant threat to boaters.

LAT...LON 3984 7416 3985 7388 3952 7369 3960 7430
TIME...MOT...LOC 0039Z 342DEG 20KT 3954 7391 

$$

JEO

Special Marine Warnings in New Jersey, 2021Every special marine warning in 2021

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.