Small Craft Advisory 55, NWS Philadelphia/Mount Holly

944 
WHUS71 KPHI 141924
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
324 PM EDT Mon Apr 14 2025

ANZ430-431-150900-
/O.CON.KPHI.SC.Y.0055.250415T1400Z-250416T2200Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
324 PM EDT Mon Apr 14 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO
6 PM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and rough 
  waters expected.

* WHERE...Delaware Bay waters north of East Point NJ to 
  Slaughter Beach DE and Delaware Bay waters south of East Point 
  NJ to Slaughter Beach DE.

* WHEN...From 10 AM Tuesday to 6 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Some gale force gusts near 35 kt are
  possible Tuesday afternoon and evening, especially nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ453>455-150900-
/O.CON.KPHI.SC.Y.0055.250415T1700Z-250416T2200Z/
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
324 PM EDT Mon Apr 14 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM TUESDAY TO
6 PM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 ft expected.

* WHERE...Coastal waters from Great Egg Inlet to Cape May NJ out 
  20 nm, Coastal waters from Cape May NJ to Cape Henlopen DE out 
  20 nm and Coastal waters from Cape Henlopen to Fenwick Island 
  DE out 20 nm.

* WHEN...From 1 PM Tuesday to 6 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Some gale force gusts near 35 kt are
  possible Tuesday afternoon and evening, especially nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ450>452-150900-
/O.CON.KPHI.SC.Y.0055.250415T1700Z-250416T2200Z/
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out
20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out
20 nm-
324 PM EDT Mon Apr 14 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM TUESDAY TO
6 PM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 3
  to 5 ft expected.

* WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ 
  out 20 nm, Coastal waters from Manasquan Inlet to Little Egg 
  Inlet NJ out 20 nm and Coastal waters from Little Egg Inlet to 
  Great Egg Inlet NJ out 20 nm.

* WHEN...From 1 PM Tuesday to 6 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Some gale force gusts near 35 kt are
  possible Tuesday afternoon and evening, especially nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Staarmann

725 
WHUS71 KPHI 150819
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
419 AM EDT Tue Apr 15 2025

ANZ430-431-152130-
/O.CON.KPHI.SC.Y.0055.250415T1400Z-250416T2200Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
419 AM EDT Tue Apr 15 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 6 PM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and rough 
  waters expected.

* WHERE...Delaware Bay waters north of East Point NJ to 
  Slaughter Beach DE and Delaware Bay waters south of East Point 
  NJ to Slaughter Beach DE.

* WHEN...From 10 AM this morning to 6 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Some gale force gusts near 35 kt are 
  possible Tuesday afternoon and evening, especially nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ453>455-152130-
/O.CON.KPHI.SC.Y.0055.250415T1700Z-250416T2200Z/
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
419 AM EDT Tue Apr 15 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 6 PM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 ft expected.

* WHERE...Coastal waters from Great Egg Inlet to Cape May NJ out 
  20 nm, Coastal waters from Cape May NJ to Cape Henlopen DE out 
  20 nm and Coastal waters from Cape Henlopen to Fenwick Island 
  DE out 20 nm.

* WHEN...From 1 PM this afternoon to 6 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Some gale force gusts near 35 kt are
  possible Tuesday afternoon and evening, especially nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ450>452-152130-
/O.CON.KPHI.SC.Y.0055.250415T1700Z-250416T2200Z/
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out
20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out
20 nm-
419 AM EDT Tue Apr 15 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 6 PM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 ft expected.

* WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ 
  out 20 nm, Coastal waters from Manasquan Inlet to Little Egg 
  Inlet NJ out 20 nm and Coastal waters from Little Egg Inlet to 
  Great Egg Inlet NJ out 20 nm.

* WHEN...From 1 PM this afternoon to 6 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Some gale force gusts near 35 kt are
  possible Tuesday afternoon and evening, especially nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

MJL

591 
WHUS71 KPHI 151715
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
115 PM EDT Tue Apr 15 2025

ANZ430-431-160615-
/O.UPG.KPHI.SC.Y.0055.000000T0000Z-250416T2200Z/
/O.NEW.KPHI.GL.W.0018.250415T1715Z-250416T0600Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
115 PM EDT Tue Apr 15 2025

...GALE WARNING IN EFFECT UNTIL 2 AM EDT WEDNESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and rough 
  waters.

* WHERE...Delaware Bay waters north of East Point NJ to 
  Slaughter Beach DE and Delaware Bay waters south of East Point 
  NJ to Slaughter Beach DE.

* WHEN...Until 2 AM EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Stronger winds may occur in showers and
  thunderstorms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

ANZ450>455-160615-
/O.UPG.KPHI.SC.Y.0055.000000T0000Z-250416T2200Z/
/O.NEW.KPHI.GL.W.0018.250415T1715Z-250416T0600Z/
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out
20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out
20 nm-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
115 PM EDT Tue Apr 15 2025

...GALE WARNING IN EFFECT UNTIL 2 AM EDT WEDNESDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 35 kt and seas 
  3 to 5 ft.

* WHERE...Portions of Atlantic coastal waters. 

* WHEN...Until 2 AM EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Stronger winds may occur in showers and
  thunderstorms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

Area Forecast Discussion
National Weather Service Mount Holly NJ
125 AM EDT Mon Apr 14 2025

.SYNOPSIS...
High pressure is in control through tonight. A subtle warm front
will lift north of the area early on Monday, followed by a cold
front late Monday night into Tuesday. A secondary cold front crosses
through late Tuesday night. High pressure returns on Wednesday and
persists into Friday. Another disturbance and sequence of
fronts approach the area late Friday into next weekend.

&&

.NEAR TERM /THROUGH TODAY/...
Dry conditions are expected through Monday as our region will
be sandwiched between two low pressure systems.

Clouds have largely cleared out for the time being, leading to
clear and calm conditions to start the night. Some high level
clouds look to build in from the west overnight and especially, towards
daybreak, which should help temper radiational cooling.

Clouds continue to build in Monday morning as a warm front
approaches our region from the southwest. The region should
have a significant warming trend thanks in large part to short
wave ridging ahead of the warm front in the mid and upper
levels. Most areas should be able to get into the 60s across our
region.

&&

.SHORT TERM /TONIGHT THROUGH WEDNESDAY/...
Precipitation will move in after sunset on Monday evening as a cold
front approaches from the west and surface low tracks through
southern Canada. Anticipate widespread showers across the area with
a few embedded thunderstorms possible south of the I-78 corridor.
Forecast soundings suggest that instability will be limited and/or
elevated in nature mainly due to the loss of diurnal heating and a
strong surface inversion. With this in mind, the Storm Prediction
Center generally has maintained their outlook with a general
thunderstorm risk for our entire area, but did add portions of Kent,
Queen Anne's, and Talbot counties in Maryland to the Marginal Risk.
Primary threat will be for damaging winds, but with the surface
inversion in place, the likelihood of this is quite low. The system
will be a quick-hitter with most precip falling within a 6 hour
period, so anticipate precip and the cold front to be offshore by
Tuesday morning. Total QPF will range from 0.10-0.25". Lows on
Monday night will range in the upper 40s to mid 50s.

By Tuesday, the area will be fully situated under the upper level
trough and influenced by cyclonic flow. With enough moisture still
hanging around and with a few impulses spiraling around the upper
level low, cannot rule out a few showers during the day on Tuesday
(best chance will be near the coast in the morning and in the
Poconos in the afternoon). With a mix of sun and clouds around,
expect highs in the upper 50s to mid 60s and gusty winds upwards of
40 mph in the afternoon. A stronger impulse will cross through the
area on Tuesday night, which will result in a secondary cold front
to pass through at the surface. This front will pass through dry
however. It's behind this front, that will result in a cooler/drier
airmass to return to the region with gusty winds continuing into
Wednesday. Expect wind gusts to be similar to those on Tuesday or
perhaps a touch less than the day prior. Highs will be seasonably
cool for mid-April, with highs only in the 40s and 50s under a mix
of sun and clouds.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
The Wednesday night through Friday period still appears to remain
quite benign as expansive high pressure settles over much of the
Eastern US. This will allow dry conditions and sunny/clear skies to
occur for much of the period, before increasing clouds return later
on Friday. In terms of temperatures, expecting lows on both
Wednesday and Thursday nights to be in the 30s. This would suggest
possible freeze/frost issues where the growing season has started.
For highs on Thursday and Friday, we'll begin to see some moderation
with highs in the upper 50s to low 60s on Thursday, increasing to
the mid to upper 60s for Friday.

Moving forward into Friday night and next weekend, the period
overall looks to be a bit unsettled. The next low pressure system
will begin to approach as it tracks through the Great Lakes. This
will cause another sequence of fronts to cross through the area.
General consensus is that a warm front will cross though late Friday
night into Saturday with a cold frontal passage on Saturday night
into Sunday. Accompanied with these fronts will likely be some rain
showers so have included a 20-50% chance of showers for the Friday
night through Saturday night period. After the cold frontal passage,
we should begin to dry out for Sunday. In terms of temperatures,
anticipate above normal temperatures throughout the period, with
peak temperatures occuring on Saturday which look to be well into
the 70s.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Rest of tonight...VFR. Winds light and variable. High
confidence.

Monday...VFR. SCT/BKN clouds around 10 kft will likely move in by
early afternoon at all terminals. Wind becoming south-southwest
around 5-10 kts. High confidence.

Outlook...

Monday night...Sub-VFR conditions possible with likely rain showers
and perhaps a few isolated thunderstorms.

Tuesday through Wednesday...VFR. A slight chance of a rain shower on
Tuesday. Gusty winds up to 30 kt possible on both Tuesday and
Wednesday.

Wednesday night through Friday...VFR. No significant weather
expected.

&&

.MARINE...
Winds and seas continue to diminish and are expected to stay
below Small Craft Advisory criteria through Monday.

Outlook...

Monday night...No marine headlines expected. Rain showers likely
with an isolated thunderstorm possible.

Tuesday through Wednesday night...SCA conditions likely beginning
Tuesday afternoon into Wednesday night. Wind gusts up to 30 kt
possible with seas around 5 feet. Outside of SCA conditions, fair
weather is expected.

Thursday through Friday...No marine headlines expected. Fair
weather.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.

&&

SYNOPSIS...DeSilva
NEAR TERM...AKL/Johnson/MJL
SHORT TERM...DeSilva/Hoeflich
LONG TERM...DeSilva/Hoeflich
AVIATION...AKL/Cooper/DeSilva/MJL
MARINE...AKL/DeSilva/Johnson