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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 6:48AM | Sunset 4:42PM | Sunday November 18, 2018 11:28 AM EST (16:28 UTC) | Moonrise 2:35PM | Moonset 1:40AM | Illumination 81% |  |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 913 Am Est Sun Nov 18 2018
Rest of today..SE winds 5 to 10 kt. Waves 2 ft or less.
Tonight..SW winds 5 to 10 kt. Waves 2 ft or less.
Mon..SW winds 5 to 10 kt, becoming nw late. Waves 2 ft or less.
Mon night..N winds around 5 kt. Waves 2 ft or less. A chance of rain.
Tue..N winds 5 to 10 kt, becoming nw 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 ft or less. A chance of rain.
Tue night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less. A chance of rain in the evening.
Wed..NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Waves 2 ft or less, then around 3 ft in the afternoon.
Wed night..W winds 10 to 15 kt, becoming nw after midnight. Waves around 3 ft.
Thu..N winds 10 to 15 kt. Waves around 3 ft in the morning, then 2 ft or less.
Thu night..N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 3 ft in the evening, then 2 ft or less.
Rest of today..SE winds 5 to 10 kt. Waves 2 ft or less.
Tonight..SW winds 5 to 10 kt. Waves 2 ft or less.
Mon..SW winds 5 to 10 kt, becoming nw late. Waves 2 ft or less.
Mon night..N winds around 5 kt. Waves 2 ft or less. A chance of rain.
Tue..N winds 5 to 10 kt, becoming nw 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 ft or less. A chance of rain.
Tue night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less. A chance of rain in the evening.
Wed..NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Waves 2 ft or less, then around 3 ft in the afternoon.
Wed night..W winds 10 to 15 kt, becoming nw after midnight. Waves around 3 ft.
Thu..N winds 10 to 15 kt. Waves around 3 ft in the morning, then 2 ft or less.
Thu night..N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 3 ft in the evening, then 2 ft or less.
ANZ400 913 Am Est Sun Nov 18 2018
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure over the area moves offshore tonight. SEveral clipper systems will pass through the region starting Sunday night through Tuesday. A cold front passes through on thanksgiving, and then an arctic airmass builds south through the end of the week. A storm system may impact the area next weekend.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure over the area moves offshore tonight. SEveral clipper systems will pass through the region starting Sunday night through Tuesday. A cold front passes through on thanksgiving, and then an arctic airmass builds south through the end of the week. A storm system may impact the area next weekend.
7 Day Forecast for Marine Location Near Merchantville , NJ
Hourly EDIT Helplocation: 39.98, -75.08 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 181416 afdphi area forecast discussion national weather service mount holly nj 916 am est Sun nov 18 2018 Synopsis High pressure over the area moves offshore tonight. Several clipper systems will pass through the region starting Sunday night through Tuesday. A cold front passes through on thanksgiving, and then an arctic airmass builds south through the end of the week. A storm system may impact the area next weekend. Near term until 6 pm this evening 9:30 am update: no major changes to the forecast at this time. Band of light snow is over western ny and far northwestern pa. That is expected to slowly make progress towards E central pa through the day. It may reach the southern poconos by sunset, but the chance is pretty low. Previous discussion... the northern mid-atlantic remains entrenched in west-southwest midlevel flow and in the right entrance region of a zonal 250-mb jet streak. Mid and high clouds are streaming eastward in this flow regime as weak perturbations, per moisture-channel imagery, progress quickly into and out of the area. To the north, a strong vort MAX will dig into southeast canada this afternoon and evening with a southward extension and amplification of longwave troughing into the great lakes and adjacent areas. A relatively strong midlevel vort MAX perturbation will approach the area this afternoon and move through the region tonight. In the meantime, a surface high across the appalachians early this morning will move offshore today, which should allow currently light variable winds to become light southeasterly this afternoon. Low-level warm advection will commence as the aforementioned vort MAX approaches the area, and cloud cover will gradually lower increase through the period. Residual stratocumulus will also persist and oscillate eastward westward across the area, especially affecting north west portions of the cwa. Main forecast concern today is pops for the far northwest (poconos and vicinity) with the approach of the vort max. In general, the strongest ascent remains to our north and west during the day, but models tend to keep the northwest CWA too dry for too long with these clipper-like systems. I retained mentionable pops beginning late this morning in the poconos and spread them southeastward to adjacent areas of the lehigh valley and northwest new jersey by evening. Expecting very light qpf, merely a few hundredths of an inch. Temperatures will be cold enough for most of the precipitation to be snow in the poconos, with more of a mixture of rain and snow anticipated farther southeast (should precipitation even occur in these areas). Mos guidance did fairly well with maximum temperatures yesterday but are in somewhat greater disagreement today. Decided to use a blend of non-bias-corrected statistical guidance today, as yesterday's forecast verification suffered from the bias correction undercutting the raw values by a couple degrees. Short term 6 pm this evening through 6 am Monday As the vort MAX approaches and moves through the region tonight, light precipitation should increase in coverage to the northwest of the urban corridor. With warm advection continuing in advance of the perturbation, my suspicion is that most of the precipitation will be liquid in the lehigh valley and northwest new jersey, but temperatures will be marginal enough to keep a risk of rain and snow for much of the night in these areas. However, QPF will be light and temperatures marginal (likely somewhat above freezing), so any accumulation of snow would be minimal (or more likely, nonexistent). In the poconos, thermal profiles (and surface temperatures) will be colder, so accumulations up to an inch or so are possible. How far the precipitation extends southeast into the CWA is a question mark, with the NAM a little more aggressive than the gfs in allowing precipitation to reach the northwest suburbs of philly. High-resolution guidance is similarly in dispute. Generally kept pops confined to along northwest of the fall line with increasing chances for primarily rain as the precipitation approaches the fall line. With warm advection and considerable cloudiness, minimum temperatures are expected to be somewhat warmer than those seen this morning, especially in southern eastern areas where conditions were clearer this morning. In general, temperatures will be near or slightly below freezing north of i-80, in the mid 30s to around 40 in areas to the south and away from the coast, and in the middle 40s on the beaches. Long term Monday through Saturday A prolonged period of colder than normal temperatures on tap for much of the new week, with an arctic airmass overspreading the region for thanksgiving and the end of the week. The first of 2 clipper systems will pass through the region on |
Monday. Models are trending a bit dryer in terms of qpf, so not expecting much more than a few hundredths of an inch. In terms of ptype, temperatures will be cold enough to support snow initially in the southern poconos and northern nj, and perhaps a rain snow mix down into the lehigh valley. But there should be rain by afternoon. Temperatures will warm into the upper 30s near 40 for southern poconos, and otherwise in the 40s and 50s elsewhere. This will also keep snow amounts down in northern zones for the day on Monday. The second clipper system approaches Monday night and passes through the region during the day Tuesday. Temperatures should be a bit colder behind the first system, and QPF will be a bit higher, so there should be more in the way of snow, especially for areas north of i-80. The rain snow line seems to set up along i-78, so areas south of i-78 should get all rain. This may be adjusted the closer we get to the event, however. Weak high pressure passes through the region on Wednesday. Another cold day with highs in the 30s and 40s. A cold front then approaches Wednesday night and works its way through the region on thanksgiving. A cold arctic airmass builds south with 1000-500 mb thicknesses dropping to 510-515 dam in the southern poconos and to 525-530 dam in delmarva. In addition, 850 mb temps fall to around -19c in the southern poconos and northern nj and to around -11c in delmarva. The high temperature for the day will probably occur just after midnight Wednesday night, and then temperatures fall thereafter, with the exception for a brief rebound Thursday afternoon. Afternoon temperatures will generally range from the teens in the southern poconos to the 20s for most of the region, and the low 30s for southern delmarva. At least it will be dry! a bitterly cold night on tap for Thursday night with lows in the teens and low 20s. High pressure moves offshore on Friday, and return flow sets up to allow for slightly warmer, yet still well below normal, temperatures. Highs will generally top off in the 30s to low 40s. From there, a storm system will be gearing up to impact the region next weekend. Too soon to determine exact impacts, but thermal profiles so far indicate wintry mix for northern zones initially, then all rain. But stay tuned. Aviation 14z Sunday through Thursday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Today...VFR with partial to considerable cloudiness. Cigs generally between 5-15 kft, though possibly a little lower than that at times at rdg abe. Winds generally light and variable. Moderate confidence. Tonight... Conditions may deteriorate to sub-vfr north and west of the philly terminals, and cannot rule out some showers at rdg abe late. CIGS will approach MVFR at the philly terminals late but are forecast to remain predominantlyVFR. Winds light and variable. Low confidence. Outlook... Monday through Tuesday...VFR most of the time, but occasional showers, with snow possible at krdg kabe, could result in MVFR or lower CIGS vsbys from time to time. Tuesday night through Thursday...VFR. Gusty N winds possible Thursday. Marine Sub-advisory winds seas are expected through the period with generally fair weather. Winds will switch from northeasterly this morning to southeasterly this afternoon to southwesterly tonight, with speeds 5 to 15 kts. Seas will primarily be near or below 3 feet. Outlook... Monday through Tuesday... Generally sub-sca. Wind gusts to 20 kt possible Tuesday afternoon. Tuesday night through Thursday... SCA conditions possible. Cold on Thursday. Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... None. Synopsis... Mps near term... Cms johnson short term... Cms long term... Mps aviation... Cms mps marine... Cms 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 Temp | Water Temp | Waves | Pressure | DewPt |
| BDSP1 | 0 mi | 41 min | 42°F | 44°F | 1028.7 hPa | |||
| PHBP1 - 8545240 - Philadelphia, PA | 5 mi | 41 min | 44°F | 42°F | 1028.2 hPa | |||
| BDRN4 - 8539094 - Burlington, Delaware River, NJ | 13 mi | 53 min | E 4.1 G 6 | 40°F | 40°F | 1028.5 hPa | ||
| NBLP1 - 8548989 - Newbold, PA | 20 mi | 41 min | SE 1.9 G 4.1 | 42°F | 41°F | 1029.1 hPa | ||
| MRCP1 - 8540433 - Marcus Hook, PA | 21 mi | 47 min | 42°F | 44°F | 1028.6 hPa | |||
| DELD1 - 8551762 - Delaware City, DE | 39 mi | 41 min | ESE 4.1 G 5.1 | 43°F | 42°F | 1028.5 hPa | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 45 mi | 59 min | ENE 4.1 | 42°F | 1028 hPa | 31°F | ||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 49 mi | 41 min | ESE 9.9 G 12 | 44°F | 49°F | 1028.3 hPa |
Wind History for Philadelphia, PA
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Philadelphia, Northeast Philadelphia Airport, PA | 8 mi | 35 min | E 7 | 10.00 mi | Overcast | 45°F | 30°F | 58% | 1029.1 hPa |
| Philadelphia, Philadelphia International Airport, PA | 11 mi | 35 min | E 6 | 10.00 mi | Overcast | 44°F | 28°F | 55% | 1028.8 hPa |
| Mount Holly, South Jersey Regional Airport, NJ | 13 mi | 35 min | N 0 | 10.00 mi | A Few Clouds | 42°F | 30°F | 65% | 1028.7 hPa |
| Philadelphia - Wings Field Airport, PA | 15 mi | 54 min | N 0 | 10.00 mi | Overcast | 39°F | 30°F | 70% | 1028.8 hPa |
| Doylestown, Doylestown Airport, PA | 24 mi | 35 min | N 0 | 10.00 mi | Overcast | 39°F | 27°F | 62% | 1028.5 hPa |
Wind History from PNE (wind in knots)
| 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 | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
| Last 24hr | W | NW G17 | W | W G19 | W G15 | W | W | W | W | W | W | W | W | W | NW | NW | Calm | Calm | Calm | Calm | Calm | Calm | E | E |
| 1 day ago | NW G28 | W G26 | W | W G18 | W | W | W G18 | W | W | W | W | W | SW | SW | W | SW | SW | W | W | W | SW | W | W | W G20 |
| 2 days ago | NE | NE | NE | NE G18 | NE | NE | NE G25 | NE G30 | NE G31 | NE G25 | NE G26 | NE G29 | NE G26 | NE G21 | NE G17 | NE G22 | NE G26 | NW G30 | NW G37 | N G26 | NW | W G22 | NW G25 | NW G23 |
Tide / Current Tables for Bridesburg, Philadelphia, Pennsylvania
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataBridesburg
Click for Map
Sun -- 01:40 AM EST Moonset
Sun -- 04:29 AM EST 0.31 feet Low Tide
Sun -- 06:48 AM EST Sunrise
Sun -- 10:13 AM EST 6.06 feet High Tide
Sun -- 02:35 PM EST Moonrise
Sun -- 04:41 PM EST Sunset
Sun -- 04:51 PM EST 0.45 feet Low Tide
Sun -- 10:30 PM EST 6.31 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:40 AM EST Moonset
Sun -- 04:29 AM EST 0.31 feet Low Tide
Sun -- 06:48 AM EST Sunrise
Sun -- 10:13 AM EST 6.06 feet High Tide
Sun -- 02:35 PM EST Moonrise
Sun -- 04:41 PM EST Sunset
Sun -- 04:51 PM EST 0.45 feet Low Tide
Sun -- 10:30 PM EST 6.31 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 4.3 | 3.1 | 2 | 1.1 | 0.4 | 0.5 | 1.8 | 3.4 | 4.5 | 5.4 | 6 | 5.8 | 4.8 | 3.7 | 2.5 | 1.5 | 0.8 | 0.5 | 1.3 | 3.1 | 4.5 | 5.5 | 6.2 | 6.2 |
Tide / Current Tables for Philadelphia, Pennsylvania Current
EDIT (on/off) Help One Week of DataPhiladelphia
Click for Map
Sun -- 01:13 AM EST -1.45 knots Max Ebb
Sun -- 01:40 AM EST Moonset
Sun -- 05:06 AM EST 0.00 knots Slack
Sun -- 06:37 AM EST 0.99 knots Max Flood
Sun -- 06:49 AM EST Sunrise
Sun -- 07:43 AM EST 0.89 knots Min Flood
Sun -- 08:41 AM EST 0.96 knots Max Flood
Sun -- 10:24 AM EST -0.00 knots Slack
Sun -- 01:48 PM EST -1.55 knots Max Ebb
Sun -- 02:35 PM EST Moonrise
Sun -- 04:42 PM EST Sunset
Sun -- 05:24 PM EST 0.01 knots Slack
Sun -- 06:58 PM EST 1.15 knots Max Flood
Sun -- 10:39 PM EST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:13 AM EST -1.45 knots Max Ebb
Sun -- 01:40 AM EST Moonset
Sun -- 05:06 AM EST 0.00 knots Slack
Sun -- 06:37 AM EST 0.99 knots Max Flood
Sun -- 06:49 AM EST Sunrise
Sun -- 07:43 AM EST 0.89 knots Min Flood
Sun -- 08:41 AM EST 0.96 knots Max Flood
Sun -- 10:24 AM EST -0.00 knots Slack
Sun -- 01:48 PM EST -1.55 knots Max Ebb
Sun -- 02:35 PM EST Moonrise
Sun -- 04:42 PM EST Sunset
Sun -- 05:24 PM EST 0.01 knots Slack
Sun -- 06:58 PM EST 1.15 knots Max Flood
Sun -- 10:39 PM EST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| -1.3 | -1.4 | -1.4 | -1.3 | -1.1 | -0.1 | 0.8 | 1 | 0.9 | 0.9 | 0.4 | -0.5 | -1.1 | -1.4 | -1.5 | -1.4 | -1.3 | -0.5 | 0.7 | 1.1 | 1 | 0.9 | 0.6 | -0.3 |
Weather Map and Satellite Images
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GOES Local Image of 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 (11,2,3,4)
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Ground Weather Radar Station Philadelphia, PA
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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. |