Marine Weather and Tides
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
|Sunrise 6:58AM||Sunset 7:17PM||Wednesday March 22, 2017 8:25 PM EDT (00:25 UTC)||Moonrise 2:31AM||Moonset 12:43PM||Illumination 22%|
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|ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 644 Pm Edt Wed Mar 22 2017 |
.gale warning in effect until 8 pm edt this evening...
Tonight..NW winds 15 to 20 kt with gusts up to 30 kt...becoming N 10 to 15 kt with gusts up to 25 kt late this evening and overnight. Seas 2 to 3 ft. A chance of light freezing spray after midnight.
Thu..NW winds 5 to 10 kt...becoming W late. Seas 1 to 2 ft until late afternoon...then 1 foot or less. A chance of light freezing spray early in the morning.
Thu night..S winds 5 to 10 kt. Seas 1 foot or less...then 1 to 2 ft in the late evening and overnight.
Fri..S winds 5 to 10 kt...increasing to 10 to 15 kt with gusts up to 20 kt in the late morning and afternoon. Seas 2 to 3 ft.
Fri night..SW winds 10 to 15 kt. Seas 2 to 3 ft.
Sat..SW winds 10 to 15 kt with gusts up to 20 kt...diminishing to 5 to 10 kt in the afternoon. Seas 1 to 2 ft.
Sat night..S winds 5 to 10 kt...becoming E after midnight. Seas 1 to 2 ft.
Sun..E winds 10 to 15 kt. Seas 1 to 2 ft. Showers likely.
Sun night..E winds 10 to 15 kt...becoming se 5 to 10 kt after midnight. Seas 1 to 2 ft. Showers likely.
Mon..SE winds around 5 kt...becoming ne in the afternoon. Seas 2 to 3 ft. Showers likely...mainly in the morning.
Mon night..NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
|ANZ400 644 Pm Edt Wed Mar 22 2017 |
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Large high pressure across the upper great lakes region this afternoon will slide southeast and crest over our region Thursday. A warm front will lift to our northwest Friday, while a backdoor cold front pushes through the area Saturday afternoon and night. This front is forecast to stall near the southern portions of the area or just to our south into early next week. Low pressure is likely to move move east along that mid atlantic coast warm front.
7 Day Forecast for Marine Location Near Paulsboro , NJHourly EDIT Help
Area Discussion for - Philadelphia/Mount Holly, PA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kphi 221912|
area forecast discussion
national weather service mount holly nj
312 pm edt Wed mar 22 2017
Large high pressure across the upper great lakes region this
afternoon will slide southeast and crest over our region Thursday. A
warm front will lift to our northwest Friday, while a backdoor cold
front pushes through the area Saturday. This front is forecast to
stall near the southern portions of the area or just to our south
into early next week. A couple of low pressure systems may form
along the boundary and move eastward as well.
Near term /until 6 am Thursday morning/
Winds will drop off quickly through this evening as the surface high
builds closer and the pressure gradient decreases. This, combined
with the dry air that is already in place will lead to efficient
radiational cooling. As a result expect lows tonight to be 10 to 20
degrees below normal. We could get close to record lows (see climate
Short term /6 am Thursday morning through 6 pm Thursday/
High will pass almost directly overhead leading to light and
variable winds for much of the region. Despite the sunny conditions,
temperatures will remain 10 to 15 degrees below normal as the
continental polar air mass will be entrenched over the region.
Long term /Thursday night through Wednesday/
High pressure will have moved east of the area by Thursday night. A
warm front will inch towards the area from the west causing clouds
to increase over the region. Rains and some mixed precipitation will
arrive across the far n/w Friday morning. The models seem to be a
bit slower with the arrival time, and this could make the difference
in p-type with even a few hours later favoring more rain over mixed.
We will continue with a mention of some sleet/freezing rain attm.
Other than that, mostly rain n/w with low likely pops by afternoon
over the SRN poconos. Limited clouds/precip s/e with temperatures
near 60 degrees by afternoon.
The weekend looks to be a split with Sat being the better weather
day and Sunday looking rather wet. The front will remain to the
north Sat with only small chc or slgt chc pops across the far north.
The front then sags southward Sunday while low pressure moves along
it and approaches from the west. We will carry low likely pops in
most areas Sunday. Temperatures well above normal Saturday with 60s
north and low 70s south/east. Readings closer to normal Sunday.
Unsettled conditions early next week with an upper low and sfc front
lingering across the area. We will carry chc pops for both Monday
ad Tuesday with this fcst. The north/west counties will be favored
for the better chcs for measurable rain. Temperatures early next
week should remain a little above normal for late march.
Aviation /19z Wednesday through Monday/
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.
Vfr conditions are expected through the TAF period with few, if any,
clouds. Northwest winds will drop off quickly after 00z, dropping
below 10 kt no later than 06z. By 18z tomorrow, winds especially at
delmarva and south nj sites (ilg, acy, and miv) could become light
and variable as the center of the high passes almost directly
thu night... In generalVFR. Low clouds psbl far NW late.
Fri...VFR most areas but restrictions psbl with rain and a
chance for sleet and freezing rain far n/w Fri morning.
Fri night and sat... MostlyVFR.
Sat night thru Monday... Showers. Restrictions for cig and vsby
Gale force winds will conditions through the early evening hours,
before dropping off quickly. Once winds drop below gale force, small
craft advisory conditions are expected to continue for most, if not
all of the night. By sunrise tomorrow morning, winds and seas should
be below SCA criteria.
There is a chance for light freezing spray overnight. Still
considerable uncertainty as by the time the air temperature gets
cold enough to support freezing spray, winds will be dropping off.
Thursday night... Sub-sca conditions expected.
Fri-fri night... SCA conditions likely on the ocean. Sub-sca on
del. Bay. Showers mostly north.
Sat-sat night... Conditions diminishing below SCA conditions.
Sun-mon... SCA expected on the ocean. Sub- SCA on del bay. Showers.
One or 2 of the following are vulnerable record equaling lows
Thursday morning march 23, primarily abe. Others are listed for
phl-14 1885, 1875
mpo- minus 8 1912
Marine... Gale warning until 11 pm edt this evening for anz450>453.
Gale warning until 8 pm edt this evening for anz430-431-454-
near term... Johnson
short term... Johnson
long term... O'hara
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|PHBP1 - 8545240 - Philadelphia, PA||9 mi||55 min||35°F||39°F||1028.3 hPa|
|MRCP1 - 8540433 - Marcus Hook, PA||10 mi||55 min||35°F||1028.4 hPa|
|BDSP1||13 mi||55 min||33°F||1029 hPa|
|RDYD1 - 8551910 - Reedy Point, DE||26 mi||55 min||36°F||43°F||1028.5 hPa|
|BDRN4 - 8539094 - Burlington, Delaware River, NJ||26 mi||55 min||NW 2.9 G 9.9||32°F||42°F||1028.4 hPa|
|DELD1 - 8551762 - Delaware City, DE||26 mi||55 min||N 19 G 22||37°F||43°F||1028.8 hPa|
|NBLP1 - 8548989 - Newbold, PA||33 mi||55 min||N 13 G 21||32°F||43°F||1028.8 hPa|
|CHCM2 - 8573927 - Chesapeake City, MD||37 mi||55 min||NE 5.1 G 8||37°F||45°F||1028.4 hPa|
|SJSN4 - 8537121 - Ship John Shoal, NJ||37 mi||55 min||NNW 24 G 27||37°F||42°F||1027.5 hPa|
|JCRN4 - Jacques Cousteau Reserve, NJ||45 mi||55 min||WNW 8.9||33°F||1027 hPa||-0°F|
Wind History for Philadelphia, PA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Philadelphia, Philadelphia International Airport, PA||5 mi||31 min||N 13||10.00 mi||Fair||34°F||1°F||24%||1029.4 hPa|
|Philadelphia, Northeast Philadelphia Airport, PA||21 mi||31 min||N 11||10.00 mi||Fair||31°F||0°F||26%||1029.8 hPa|
|Wilmington, New Castle County Airport, DE||22 mi||34 min||N 8 G 19||10.00 mi||Fair||34°F||1°F||24%||1029.3 hPa|
|Mount Holly, South Jersey Regional Airport, NJ||22 mi||31 min||NNW 9 G 17||10.00 mi||Fair||31°F||-4°F||22%||1029.1 hPa|
|Philadelphia - Wings Field Airport, PA||22 mi||30 min||NNW 3||10.00 mi||Fair||30°F||1°F||29%||1029.1 hPa|
Wind History from PHL (wind in knots)
|1 day ago||W||W||W||Calm||NW||W||W||NW||W||W||NW||W||W||W||NW||NW||W||SW||SW||W||W||W||W||W|
|2 days ago||NW||NW||NW||NW||NW||NW||NW||N||N||NW||N||NW||N||N||N||NW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Wed -- 03:30 AM EDT Moonrise
Wed -- 03:56 AM EDT 0.33 feet Low Tide
Wed -- 07:00 AM EDT Sunrise
Wed -- 09:50 AM EDT 5.24 feet High Tide
Wed -- 01:43 PM EDT Moonset
Wed -- 04:44 PM EDT 0.39 feet Low Tide
Wed -- 07:15 PM EDT Sunset
Wed -- 10:24 PM EDT 4.84 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
Click for Map
Wed -- 01:18 AM EDT -1.40 knots Max Ebb
Wed -- 03:30 AM EDT Moonrise
Wed -- 05:05 AM EDT 0.00 knots Slack
Wed -- 06:43 AM EDT 1.27 knots Max Flood
Wed -- 07:00 AM EDT Sunrise
Wed -- 10:22 AM EDT -0.00 knots Slack
Wed -- 01:42 PM EDT Moonset
Wed -- 02:01 PM EDT -1.38 knots Max Ebb
Wed -- 03:23 PM EDT -1.32 knots Min Ebb
Wed -- 03:58 PM EDT -1.33 knots Max Ebb
Wed -- 06:03 PM EDT 0.00 knots Slack
Wed -- 07:14 PM EDT Sunset
Wed -- 07:28 PM EDT 0.88 knots Max Flood
Wed -- 08:37 PM EDT 0.76 knots Min Flood
Wed -- 09:34 PM EDT 0.83 knots Max Flood
Wed -- 11:08 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Mid-Atlantic EDIT
Wind Forecast for Philadelphia/Mount Holly, PA (20,4,5,8)(on/off)  Help
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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.