Wednesday, July17, 2019 L-36.com


Marine Weather and Tides
Atlantic City, NJ

Version 3.4
NOTICE
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:43AMSunset 8:24PM Wednesday July 17, 2019 5:10 AM EDT (09:10 UTC) Moonrise 9:10PMMoonset 6:14AM Illumination 100% Phase: Full Moon; Moon at 15 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
ANZ452 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- 336 Am Edt Wed Jul 17 2019
Today..SW winds 10 to 15 kt, becoming S 15 to 20 kt late. Seas around 3 ft early this morning, then 2 ft or less, then around 3 ft this afternoon. SWell mainly from the se with a dominant period of 10 seconds. A slight chance of showers and tstms early. A chance of showers and tstms late.
Tonight..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. SWell mainly from the se with a dominant period of 10 seconds. A chance of showers and tstms. Areas of fog after midnight with vsby 1 to 3 nm.
Thu..SW winds 5 to 10 kt. Seas 3 to 4 ft. SWell mainly from the S with a dominant period of 9 seconds. Areas of fog early in the morning. A chance of showers and tstms. Vsby 1 to 3 nm.
Thu night..SW winds 5 to 10 kt, becoming nw after midnight. Seas 3 to 4 ft. SWell mainly from the S with a dominant period of 7 seconds. A chance of tstms early in the evening. A chance of showers until early morning. Vsby 1 to 3 nm early in the evening.
Fri..N winds around 5 kt, becoming S in the afternoon. Seas around 3 ft.
Fri night..SW winds 10 to 15 kt. Seas around 3 ft.
Sat..W winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 3 ft in the morning, then 2 ft or less.
Sat night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft.
Sun..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, then around 3 ft in the afternoon.
Sun night..SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
ANZ400 336 Am Edt Wed Jul 17 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. The remnants of former tropical cyclone barry will cross the area later today into Thursday. High pressure will then generally prevail into the weekend although a weak cold front associated with a low in canada may cross the area Sunday. A more significant cold front will pass through the area early next week.


7 Day Forecast for Marine Location Near Atlantic City city, NJ
   Hourly   EDIT   Help
location: 39.39, -74.43     debug


Area Discussion for - Philadelphia/Mount Holly, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kphi 170755
afdphi
area forecast discussion
national weather service mount holly nj
355 am edt Wed jul 17 2019

Synopsis the remnants of former tropical cyclone barry will
cross the area later today into Thursday. High pressure will
then generally prevail into the weekend although a weak cold
front associated with a low in canada may cross the area Sunday.

A more significant cold front will pass through the area early
next week.

Near term until 6 pm this evening
There are several issues on tap for today. Behind a departing
warm front this morning, and then SW flow ushers an increasingly
hot and humid airmass into the northeast and mid-atlantic. High
temperatures will soar into the low to mid 90s with the highest
temperatures along the i-95 corridor and into southeast new
jersey and delmarva. Surface dewpoints climb well into the low
to mid 70s, and even into the upper 70s in parts of the eastern
shore of maryland due to flow off the chesapeake bay. Some
mixing is possible in the afternoon, but dewpoints would only
drop by a few degrees or so, and this really will not have much
of an effect on the heat index.

Max heat index values will approach 100 degrees across the
southern poconos, lehigh valley and far northern new jersey,
while MAX heat index values up to 105 are possible across
portions of southeast pennsylvania and most of new jersey. The
max heat index across parts of DELMARVA could be as high as 110.

Will keep existing heat advisories and excessive heat warnings
in place.

The other concern for today is that with the high heat and
humidity, surface-based CAPE values will range from 1000-2000
j kg, but could be higher in some spots. Pwats will be well in
excess of 2-2.5 inches, and with the approach of the remnants of
barry later today, this sets the stage for afternoon showers
and thunderstorms. There is not much 0-6 km bulk shear,
generally upwards of 20 kt, but with abundant moisture in place,
the primary threat will be heavy rain flash flooding, but
cannot rule out severe storms with damaging wind gusts.

Though convection begins in the afternoon, the most likely
threat for flash flooding and severe weather will be in the
evening, after 6 pm.

Short term tonight
As has been the case in the last several months, the lowest
flash flood guidance values are across much of new jersey and
southeast pennsylvania, generally 1.5-2 inches in 1 hour, and as
high as 3 inches in 3 hours, and as high as 4 inches in 6
hours. Based on latest model QPF fields from the hrrr, NAM nest,
hi-res arw and hi-res nmm, think there will be spots that pick
up 3+ inches of QPF from late afternoon through this evening.

Even the href ensemble MAX qpf showing pockets of 3-5 inches of
rain.

Will go ahead and issue a flash flood watch starting in the
afternoon, but running through 1 am.

There is little consistency among the models as to where the
heaviest precip will fall, but think focus will be along the
i-95 corridor and areas west. For DELMARVA and southeast new
jersey, FFG values are quite a bit higher. Cannot rule out
flooding and flash flooding, but will hold off on the watch for
those areas.

Warm and muggy tonight with lows in the 70s and dewpoints not
much lower than the ambient air temperature. With the moisture
from the rainfall, can expect fog and low stratus to develop in
the wake of the showers and thunderstorms.

Long term Thursday through Tuesday
Synoptic overview: the long term period begins with both the
mid-lvl and lower lvl circulations associated with barry's
remnants having just crossed the area. An expansive h5 ridge
will then set up over the southern-tier of the us on Friday. The
ridge will remain in place until Sunday at which point a
shortwave trough digging from canada will act to split it. The
western half of the ridge will retrograde into the southwestern
us while the eastern half is pushed offshore into the atlantic.

A fairly healthy (by july standards) cold front associated with
the shortwave's surface reflection will cross the area Monday
into Tuesday.

The main story of the extended continues to be the potential
for excessive heat Friday through Sunday. Fortunately it appears
that beginning early next week the overall synoptic pattern
will become characterized by longwave troughing over the eastern
us. This pattern would favor a more mild end of july.

Dailies:
Thursday... Although deep-layer moisture and dynamic lift will
decrease on Thursday as barry's remnants begin to pull away,
sufficient lingering moisture and instability should be
sufficient for continued showers and thunderstorms. Think the
overall flash flood and severe threats will be lower during the
day on Thursday given the lower moisture instability parameters
and modest height rises behind the departing shortwave. Thursday
will also be a bit cooler than any of the days surrounding it
due to considerable cloud cover precipitation, and generally
think highs will struggle to reach 90. That being said heat
indices could still very well top out near 100 in portions of
the urban corridor as dewpoints remain elevated with somewhat
inhibited mixing due to the aforementioned cloud cover.

Friday Saturday... Friday will be hot and Saturday will be very
hot as the ridge builds to our sw. Heat indices will generally
be in the 100-105 degree range on Friday, while on Saturday
105-110 readings will be common (with locally higher values even
possible). The only real uncertainty is how efficiently
dewpoints can mix down in the afternoons, but regardless
dangerous heat seems like a certainty. Additionally lows in the
upper 70s to low 80s Saturday and Sunday mornings will not help
with any recovery. Kept pops below mentionable both Friday and
Saturday although can't totally rule out some weakly-forced
diurnal storms (e.G. Sea breeze or terrain related).

Sunday... A weak cold front may sneak by the area early Sunday
which will result in temperatures slightly cooler than Saturday,
but still very warm i.E. Heat indices topping out in the
100-105 range. As the ridge flattens and shortwave energy
approaches from the west the chance of showers and thunderstorms
also increases.

Monday Tuesday... The main cold front looks to cross the area
in this time frame and will likely be accompanied by some
precipitation given its dynamic support (an amplifying trough
and southward sagging upper jet). Temperatures Monday are a bit
uncertain and will depend largely on frontal precipitation
timing, however generally think they will top out below any heat
advisory criteria. By Tuesday generally expect high
temperatures in the 80s and dewpoints dropping down into the 60s
with this more mild airmass likely sticking around a bit.

Aviation 04z Wednesday through Sunday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Today... MainlyVFR. Shra tsra possible this afternoon, first at
krdg kabe, then south towards kttn kpne kphl. MVFR or lower
conditions in shra tsra, and tsra will be capable of torrential
rain and strong wind gusts. Winds otherwise SW 5-109 kt, except
at kacy kmiv kilg, where afternoon sea breezes could turn winds
to more of a southerly direction.

Tonight... MVFR or lower in shra tsra through around 06z, then
MVFR or lower in fog stratus. SW winds 5-10 kt, becoming
lgt vrb.

Outlook...

Thursday... Frequent showers and a chance of thunderstorms will
bring a chance of lower CIGS vsbys at times. Possibly some
patchy fog Thursday night. Winds generally 5 kts or less.

Friday through Sunday... MostlyVFR with winds generally
southwesterly westerly 5-10 kts. Some showers and thunderstorms
possible on Sunday.

Marine
Sub-sca conditions on tap for today and tonight with seas
generally around 2-3 feet and SW winds 10-15 kts gusting to 20
kts or less.

This afternoon and tonight, showers and thunderstorms will move
into the waters and could produce locally strong winds, higher
seas, and reduced visibilities.

Outlook...

sub-sca conditions are expected through Sunday winds favoring a
southerly southwesterly direction 10-15 kts and seas generally
3 feet or less. Thunderstorms Thursday may produce locally
higher winds and seas.

Rip currents...

there is a high risk for the development of dangerous rip
currents at the new jersey beaches this afternoon and a moderate
risk for the development of dangerous rip currents at delaware
beaches today.

Southwest winds become south this afternoon at 15-20 kt with
long period swells. Additionally, low tide will occur during mid
to late afternoon. Given these factors plus the proximity to
the full moon, feel the risk will be higher in new jersey where
shoreline orientation is more favorable.

Phi watches warnings advisories
Pa... Flash flood watch from 2 pm edt this afternoon through late
tonight for paz060>062-070-071-101>106.

Heat advisory from 11 am this morning to 8 pm edt this evening
for paz101-103-105.

Excessive heat warning from 8 am this morning to 10 pm edt
Sunday for paz070-071-102-104-106.

Nj... Flash flood watch from 2 pm edt this afternoon through late
tonight for njz001-007>010-012-013-015>019.

Heat advisory from 11 am this morning to 8 pm edt this evening
for njz009-010-012-013-016-020>022-027.

High rip current risk from 11 am edt this morning through this
evening for njz014-024>026.

Excessive heat warning from 8 am this morning to 10 pm edt
Sunday for njz015-017>019.

De... Flash flood watch from 2 pm edt this afternoon through late
tonight for dez001.

Heat advisory from 11 am this morning to 8 pm edt this evening
for dez002-003.

Excessive heat warning from 8 am this morning to 10 pm edt
Sunday for dez001.

Md... Flash flood watch from 2 pm edt this afternoon through late
tonight for mdz008.

Heat advisory from 11 am this morning to 8 pm edt this evening
for mdz008-012-015-019-020.

Marine... None.

Synopsis... Carr
near term... Mps
short term... Mps
long term... Carr
aviation... Carr mps
marine... Carr mps


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACYN4 - 8534720 - Atlantic City, NJ 2 mi59 min 77°F 72°F1016.1 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 10 mi41 min S 7 62°F 1015 hPa62°F
CMAN4 - 8536110 - Cape May, NJ 40 mi59 min S 5.1 G 7 78°F 75°F1015.4 hPa
44091 44 mi41 min 77°F3 ft
BRND1 - 8555889 - Brandywine Shoal Light, DE 46 mi65 min 1016.1 hPa

Wind History for Cape May, NJ
(wind in knots)    EDIT      (on/off)   Help
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last
24hr
SE2
S4
S4
S5
S6
SW5
S7
SE7
SE7
G11
SE10
G15
SE9
G12
SE12
G16
SE9
G14
SE12
G15
SE13
G17
SE10
G13
SE8
G11
SE5
SE4
S5
SE4
G7
S5
SE5
S4
G9
1 day
ago
NE5
G8
NE5
G8
N2
G6
N4
G7
N5
NW6
NW4
G7
W5
G8
SW7
SW6
SW4
SW4
SW6
S6
S5
S5
G9
SE4
S3
G6
S4
S4
S3
E1
S3
2 days
ago
SW11
SW8
W7
SW5
SW5
SW3
W5
W5
G8
W4
NW6
G9
NW5
NW2
G6
NW2
G5
W5
NW5
--
--
NE1
--
NE2
NE3
G6
NE4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Atlantic City, Atlantic City International Airport, NJ9 mi17 minSSW 610.00 miFair79°F72°F79%1015.5 hPa

Wind History from ACY (wind in knots)
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrCalmCalmSW4SW5SW666SW4
G14
SW11SW7S9S10S11S9S8S7S7S7S4SW4SW5S4S6SW6
1 day agoNW4CalmN6N4N63--N6W7W9SE9S8S84SE5SW4SW4SW6SW3SW3CalmSW3SW4W3
2 days agoSW6SW5W5W6W11W9W9W10W10NW10W10NW10W13NW9W6NW5N4NW4CalmCalmNW3CalmCalmCalm

Tide / Current Tables for Absecon Channel, State Route 87 bridge, New Jersey
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Absecon Channel
Click for Map
Wed -- 02:57 AM EDT     -0.05 feet Low Tide
Wed -- 05:44 AM EDT     Sunrise
Wed -- 06:14 AM EDT     Moonset
Wed -- 09:12 AM EDT     3.87 feet High Tide
Wed -- 02:58 PM EDT     0.32 feet Low Tide
Wed -- 08:22 PM EDT     Sunset
Wed -- 09:09 PM EDT     Moonrise
Wed -- 09:25 PM EDT     4.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.21.10.3-0.10.3122.83.53.93.732.11.30.60.30.61.42.53.44.24.64.63.9

Tide / Current Tables for Dock Thorofare, Risley Channel, New Jersey
   EDIT      (on/off)   Help   One Week of Data
Dock Thorofare
Click for Map
Wed -- 03:30 AM EDT     -0.05 feet Low Tide
Wed -- 05:45 AM EDT     Sunrise
Wed -- 06:15 AM EDT     Moonset
Wed -- 09:27 AM EDT     3.96 feet High Tide
Wed -- 03:31 PM EDT     0.33 feet Low Tide
Wed -- 08:23 PM EDT     Sunset
Wed -- 09:09 PM EDT     Moonrise
Wed -- 09:40 PM EDT     4.80 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.71.60.7000.61.62.63.43.93.93.32.51.70.90.40.412.13.14.14.74.84.3

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of Mid-Atlantic    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (5,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Philadelphia, PA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.