Marine Weather and Tides
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.
|Sunrise 5:33AM||Sunset 8:24PM||Tuesday May 30, 2017 5:13 AM EDT (09:13 UTC)||Moonrise 9:47AM||Moonset 11:54PM||Illumination 23%|
EDIT (on/off)  Help
|ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 348 Am Edt Tue May 30 2017 |
Today..SE winds 5 to 10 kt, increasing to 10 to 15 kt late this morning and afternoon. Waves 2 ft or less. Patchy fog early this morning. Patchy drizzle early this morning. A chance of showers. Isolated tstms late. Vsby 1 to 3 nm until late afternoon.
Tonight..SE winds 5 to 10 kt, diminishing to around 5 kt late. Waves 2 ft or less. Patchy fog after midnight with vsby 1 nm or less.
Wed..S winds around 5 kt. Waves 2 ft or less. Patchy fog early in the morning. A chance of showers and tstms in the afternoon. Vsby 1 nm or less early in the morning.
Wed night..W winds 5 to 10 kt. Waves 2 ft or less. A chance of tstms in the evening. A chance of showers.
Thu..W winds 5 to 10 kt. Waves 2 ft or less.
Thu night..SW winds around 5 kt. Waves 2 ft or less.
Fri..S winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Waves 2 ft or less. A chance of showers and tstms in the afternoon.
Fri night..SW winds 10 to 15 kt. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers and tstms.
Sat..W winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Sat night..NW winds around 5 kt, becoming E around 5 kt after midnight. Waves 2 ft or less. A chance of showers. Winds and waves higher in and near tstms.
|ANZ400 348 Am Edt Tue May 30 2017 |
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A stationary front remains along the mid-atlantic through the middle of the week. Low pressure develops along the boundary and passes off the mid-atlantic coast on Tuesday, followed by another area of low pressure passing south of the area on Wednesday. A cold front crosses the region Wednesday night. High pressure passes through the area Thursday through Friday, followed by a series of low pressure systems that will impact the area through next weekend.
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 300855|
area forecast discussion
national weather service mount holly nj
455 am edt Tue may 30 2017
A stationary front remains along the mid-atlantic through the
middle of the week. Low pressure develops along the boundary and
passes off the mid-atlantic coast on Tuesday, followed by
another area of low pressure passing south of the area on
Wednesday. A cold front crosses the region Wednesday night. High
pressure passes through the area Thursday through Friday,
followed by a series of low pressure systems that will impact
the area through next weekend.
Near term until 6 pm this evening
Another cloudy, dreary day is expected again today across much
of the area. High pressure across eastern canada will continue
to nose its way down the eastern seaboard, while a weak area of
low pressure to our south moves offshore and slowly drifts out
to sea. There is a stationary boundary to our south that will
remain to our south with an occluded frontal boundary
approaching from the west. There could be a couple of periods
for a scattered showers today. First this morning across the
south as a short wave moves across the delmarva, north of the
low to our south. This could create some scattered showers
mainly across the southern areas this morning. Additional
showers could approach the area this afternoon ahead of the
approaching occluded front and associated short wave vorticity
impulse. Instability is weak this morning, but there is a small
chance of an isolated lightning strike. The better chance for
thunderstorms is late this afternoon and evening, especially
across the western half of the area as the front approaches.
Short term 6 pm this evening through 6 am Wednesday
The occluded front continues to weaken and dissipate as it
approaches the area from the west this evening and overnight.
Nevertheless, there continues to be some weak instability
forecast and as there will continue to be some vorticity
affecting the area, there could be enough lift to create some
scattered showers and an isolated thunderstorm during the
evening. The precipitation will then likely dissipate through
the night. However, there could be some patchy fog develop
during the night with very saturated air remaining across the
Long term Wednesday through Monday
A prolonged period of unsettled weather on tap for the long
Deep trough over the great lakes presses east on Wednesday,
pushing a cold front through the ohio valley and into the
northeast mid-atlantic. Low pressure develops at the base of
the trough and moves off the mid-atlantic coast during the day.
Scattered showers and thunderstorms develop in the afternoon,
and then move offshore with the passage of the cold front
Upper trough then in place over the northeast as surface high
pressure builds across the area with dry conditions Thursday
through Friday. Temperatures will be near normal on Thursday,
and then will warm up several degrees above normal on Friday as
return flow sets up behind the departing high.
From there, upper trough flattens out as low pressure
approaches from the west. Aided by upper level shortwave energy,
scattered afternoon showers and thunderstorms look to encroach
from the west. Most of the models are holding off the bulk of
the precip until after 18z, and latest guidance seems to be
holding the bulk of the precip off until after 00z Saturday.
Wet weather sets up for the weekend as a series of low pressure
systems work their way across the region. There are some timing
differences among the gfs ECMWF cmc-gdps, but the general trend
is for activity through the weekend. Given the low confidence
due to the timing differences, will generally carry chance pops
Saturday through Monday, but the models do seems to be keying in
on a more developed area of low pressure passing through the
east coast sometime Sunday night through Monday, and will carry
the highest pops then.
Near normal temps expected through the weekend, but then below
normal temps expected for the start of the new week due to the
Aviation 09z Tuesday through Saturday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.
Low MVFR to ifr conditions are in place across the TAF sites as
an abundance of low level moisture has kept low clouds across
the area. Any sites that are not ifr are expected to drop to ifr
through the early morning hours and remain ifr through the taf
period. Scattered showers are possible through the day. A line
of showers and thunderstorms may develop to our west this
afternoon, but may have a hard time making their way into our
area. At least not until this evening. So while there is a
chance of thunderstorms late this afternoon and into this
evening, especially across the west, we have kept them out of of
the forecast at this time.
Winds will generally be out of the east to southeast through today
around 5-10 knots.
Wednesday... Improving conditions in the morning, then sub-vfr
conditions possible in the afternoon in scattered
Wednesday night... Scattered showers thunderstorms in the
Thursday through Thursday night...VFR.
Friday through Saturday... Scattered showers and thunderstorms.
The small craft advisory has been extended through 12 noon for
the northern new jersey atlantic coastal waters, and through 6
pm for the remainder of the new jersey and delaware atlantic
coastal waters. After that, the seas are expected to be below 5
feet. Winds could gust around 20 knots through today, but will
likely remain below 25 knots.
Rip currents... With the southeasterly flow and moderate swell,
there is a moderate risk for the development of dangerous rip
currents today for the new jersey shore.
Wednesday through Thursday... No marine headlines anticipated.
Scattered showers and thunderstorms possible Wednesday afternoon
Friday through Friday night... Small craft advisory conditions
possible due to wind gusts greater than 25 kt and seas building
to around 5 ft. Scattered afternoon evening showers and
Saturday... Sub-sca conditions expected. Scattered showers and
the potential for the development of dangerous rip currents is
low for today.
Tides coastal flooding
As astronomical tides continue to fall, the threat for coastal
flooding will be reduced, even through the onshore flow
continues. Therefore, no coastal flood advisory is anticipated
Phi watches warnings advisories
Marine... Small craft advisory for hazardous seas until 6 pm edt this
evening for anz452>455.
Small craft advisory for hazardous seas until noon edt today
near term... Robertson
short term... Robertson
long term... Mps
aviation... Robertson mps
marine... Robertson mps
tides coastal flooding...
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||44 min||57°F||66°F||1019.4 hPa|
|MRCP1 - 8540433 - Marcus Hook, PA||10 mi||44 min||57°F||1019.2 hPa|
|BDSP1||13 mi||44 min||56°F||1020 hPa|
|RDYD1 - 8551910 - Reedy Point, DE||26 mi||44 min||57°F||66°F||1018.7 hPa|
|DELD1 - 8551762 - Delaware City, DE||26 mi||44 min||ESE 7 G 8.9||58°F||65°F||1019.1 hPa|
|BDRN4 - 8539094 - Burlington, Delaware River, NJ||26 mi||44 min||SE 4.1 G 6||56°F||65°F||1019.8 hPa|
|NBLP1 - 8548989 - Newbold, PA||33 mi||44 min||SE 2.9 G 5.1||56°F||66°F||1020.5 hPa|
|CHCM2 - 8573927 - Chesapeake City, MD||37 mi||44 min||ENE 2.9 G 5.1||58°F||68°F||1019.2 hPa|
|SJSN4 - 8537121 - Ship John Shoal, NJ||37 mi||44 min||E 12 G 15||58°F||65°F||1018.3 hPa|
|JCRN4 - Jacques Cousteau Reserve, NJ||45 mi||44 min||E 5.1||55°F||1020 hPa||54°F|
|44057 - Susquehanna, MD||49 mi||34 min||E 9.7 G 12||60°F||1018.5 hPa|
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||20 min||ESE 4||10.00 mi||Overcast||57°F||53°F||87%||1020.1 hPa|
|Philadelphia, Northeast Philadelphia Airport, PA||21 mi||20 min||SE 5||10.00 mi||Overcast||57°F||53°F||87%||1020.6 hPa|
|Wilmington, New Castle County Airport, DE||22 mi||23 min||E 6||10.00 mi||Overcast||57°F||54°F||90%||1019.5 hPa|
|Mount Holly, South Jersey Regional Airport, NJ||22 mi||20 min||E 4||10.00 mi||Overcast||55°F||53°F||93%||1020.1 hPa|
|Philadelphia - Wings Field Airport, PA||22 mi||39 min||ESE 3||10.00 mi||Overcast||54°F||51°F||94%||1020.3 hPa|
Wind History from PHL (wind in knots)
|1 day ago||Calm||Calm||Calm||E||E||E||SE||S||S||SE||SE||SE||E||E||E||E||E||E||NE||NE||E||NE||NE||NE|
|2 days ago||W||NW||NW||NW||NW||SW||SW||SW||W||W||W||SW||SW||SW||S||SW||SW||SW||SW||SW||Calm||S||S||W |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Tue -- 12:11 AM EDT Moonset
Tue -- 12:19 AM EDT 0.36 feet Low Tide
Tue -- 05:35 AM EDT Sunrise
Tue -- 05:38 AM EDT 6.54 feet High Tide
Tue -- 10:47 AM EDT Moonrise
Tue -- 12:59 PM EDT 0.03 feet Low Tide
Tue -- 06:19 PM EDT 5.67 feet High Tide
Tue -- 08:21 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
Click for Map
Tue -- 12:10 AM EDT Moonset
Tue -- 12:59 AM EDT 0.00 knots Slack
Tue -- 03:00 AM EDT 2.22 knots Max Flood
Tue -- 05:34 AM EDT Sunrise
Tue -- 06:21 AM EDT -0.01 knots Slack
Tue -- 09:39 AM EDT -2.14 knots Max Ebb
Tue -- 10:46 AM EDT Moonrise
Tue -- 01:46 PM EDT 0.00 knots Slack
Tue -- 03:44 PM EDT 1.86 knots Max Flood
Tue -- 06:56 PM EDT -0.00 knots Slack
Tue -- 08:21 PM EDT Sunset
Tue -- 09:54 PM EDT -2.12 knots Max Ebb
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 (5,6,7,8)(on/off)  Help
Ad by Google
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.