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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 4:47PM | Saturday November 17, 2018 6:11 PM EST (23:11 UTC) | Moonrise 2:08PM | Moonset 12:43AM | Illumination 74% |  |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 312 Pm Est Sat Nov 17 2018
Tonight..N winds 5 to 10 kt. Waves 2 ft or less.
Sun..NE winds around 5 kt, becoming se in the afternoon. Waves 2 ft or less.
Sun night..SW winds around 5 kt. Waves 2 ft or less.
Mon..W winds around 5 kt. Waves 2 ft or less.
Mon night..N winds around 5 kt. Waves 2 ft or less.
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.
Tue night..NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 2 ft or less.
Wed..W winds 5 to 10 kt. Waves 2 ft or less.
Wed night..NW winds 10 to 15 kt. Waves 2 ft or less.
Thu..N winds 10 to 15 kt. Waves 2 ft or less.
Thu night..N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves 2 ft or less.
Tonight..N winds 5 to 10 kt. Waves 2 ft or less.
Sun..NE winds around 5 kt, becoming se in the afternoon. Waves 2 ft or less.
Sun night..SW winds around 5 kt. Waves 2 ft or less.
Mon..W winds around 5 kt. Waves 2 ft or less.
Mon night..N winds around 5 kt. Waves 2 ft or less.
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.
Tue night..NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 2 ft or less.
Wed..W winds 5 to 10 kt. Waves 2 ft or less.
Wed night..NW winds 10 to 15 kt. Waves 2 ft or less.
Thu..N winds 10 to 15 kt. Waves 2 ft or less.
Thu night..N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves 2 ft or less.
ANZ400 312 Pm Est Sat Nov 17 2018
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure will settle across the area tonight and remain for much of Sunday. Two fast moving systems will affect the area beginning later Sunday and lasting through Tuesday. Arctic high pressure will then build towards the area Tuesday night and Wednesday and persist across the area until the end of the week. A disturbance may arrive across the region next weekend.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure will settle across the area tonight and remain for much of Sunday. Two fast moving systems will affect the area beginning later Sunday and lasting through Tuesday. Arctic high pressure will then build towards the area Tuesday night and Wednesday and persist across the area until the end of the week. A disturbance may arrive across the region next weekend.
7 Day Forecast for Marine Location Near Hancocks Bridge, NJ
Hourly EDIT Helplocation: 39.49, -75.55 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 172015 afdphi area forecast discussion national weather service mount holly nj 315 pm est Sat nov 17 2018 Synopsis High pressure will settle across the area tonight and remain for much of Sunday. Two fast moving systems will affect the area beginning later Sunday and lasting through Tuesday. Arctic high pressure will then build towards the area Tuesday night and Wednesday and persist across the area until the end of the week. A disturbance may arrive across the region next weekend. Near term until 6 am Sunday morning Quiet weather expected tonight as the surface high approaches and builds over our region. The main challenge tonight is with the stratocumulus deck that has persisted along and northwest of the 95 corridor for much of the day. Models depict this deck lifting through the evening with only mid and upper clouds for much of the night. If this occurs, expect efficient radiational cooling, and thus lows may drop into the 20s across much of the area. My concern is that if the stratocu manages to persist past sunset in any area once an inversion has developed and decoupling has occurred, then the lower clouds could persist longer, keeping temperatures slightly higher. However, where or even if the low clouds will persist this long is unclear. Thus, I have stayed close to the previous forecast, with lows for areas NW of the fall line near or below 30, and lows across the coastal plains in the lower to mid 30s. Short term 6 am Sunday morning through 6 pm Sunday The first of a series of progressive clipper systems is expected to propagate over the region tomorrow. Current model tracks depict that the precipitation during the day tomorrow will be limited to areas along and north of the i78 corridor. Given the lack of a deep upper level trough with this system, and the expanse of the surface high, this track looks very reasonable. Therefore, have kept mention of precipitation limited mostly to the lehigh valley, southern poconos, and NW nj. If any precipitation occurs, it will likely be in the form of a rain snow mix or all snow. Some model soundings depict a very shallow cloud layer, and thus very little in the way of snow (rather it would be mostly rain, or even some freezing rain in the highest elevations of the poconos), but this is unlikely given the cold air already in place and a lack of any warm layer aloft (which matches what upstream RAOB soundings are depicting). This will be a fast moving system and moisture will be limited, so any precipitation that occurs, should be light, and snow accumulations should be less than one half inch. Long term Sunday night through Saturday Summary... Colder than normal temperatures with two systems affecting the area Sunday night through Tuesday, then dry and cold through the end of the week. Moderating temperatures and another system possible next weekend. Sunday night through Monday... The first (of 2) clipper type systems will affect (mostly) the northern fringes of the CWA (the southern poconos and NW nj) with some snow rain showers Sun night into Monday. Right now, given the fast pace of the system, QPF should be rather light, but still lower vsbys and small accums are possible (Monday morning commute). The rain vs, snow line will be nearby, so higher elevations and nighttime QPF will favor snow. We haven't changed the QPF snowfall much from the previous fcst with 1 2 inch to 3 4 inch psbl. Monday night and Tuesday... The second system seems to be trending a bit stronger as the upper trough to the west is sharpening up. The weak low and QPF pattern seems to be setting up more in the north and central parts of the CWA with somewhat higher totals (compared to the first system). The rain snow line will be still across the north, away from the higher qpf, but still close enough to have some concern, especially with the overall colder pattern beginning to take shape. Higher elevations N W will |
probably have some snow with the system. Another 1 2 inch to 1 inch psbl across the N w. Tuesday night... The second disturbance will move offshore and high pressure well the west will begin to influence the region. Cold and dry air will be ushered across the area behind the low and temperatures will begin a much below normal period which should last until late week. Wednesday through Friday... A dry period with high pressure building across the area. A fast moving system will cross well north of the poconos Wed night which could bring a few snow showers there, but otherwise a dry fcst for our area. Cold ! Readings remaining well below normal with records possible. The coldest day (thanksgiving) may see highs only in the 20s far N W with low mid 30s elsewhere. Lows Fri morning in the teens (north west) and low mid 20s elsewhere. Next weekend... The high pressure area will be offshore and the next system will be arriving across the middle atlantic. As is usually the case, much variation in the op models, so mostly chc pops for the period. The latest GFS and cmc models favor mostly rain with sat night Sun for the favored time periods. By then temperatures will be back near normal. Aviation 20z Saturday through Thursday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Tonight...VFR conditions are expected. The stratocumulus deck between 3000 and 5000 agl is expected to linger through the evening before lifting. Once it does so, ceilings should be around 8000 to 10000 agl. Winds will diminish this evening and shift to northwesterly. After 06z, winds are expected to become light and variable as a high builds closer to the region. Tomorrow...VFR conditions are likely at the TAF sites. There is a slight chance, 20%, for rain and snow showers at krdg and kabe after 18z tomorrow. If that occurs, MVFR ceilings and visibility are possible at those two sites. However, the chance is too low to include in the tafs at this time. At the start of the day, wind will be light and variable, eventually settling out of the southeast by 18z, but should remain less than 10 kt. Outlook... Sunday night thru Tuesday...VFR most of the time, but showers (rain S E with snow psbl far N w) could bring lower CIGS vsbys at times. Tue night thru Thursday...VFR expected. Gusty winds psbl tue night wed. Marine Winds and seas should remain below small craft advisory conditions tonight and tomorrow. However, westerly and northwesterly wind gusts around 20 kt will remain possible through the evening. Outlook... sun night thru tue... Sub-sca with mostly few showers psbl. Tue night thru thu... SCA possible. Fair. Cold thu. Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... None. Synopsis... O'hara near term... Johnson short term... Johnson long term... O'hara aviation... Johnson o'hara marine... Johnson o'hara |
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 |
| DELD1 - 8551762 - Delaware City, DE | 7 mi | 42 min | NW 5.1 G 6 | 44°F | 43°F | 1025.3 hPa | ||
| CHCM2 - 8573927 - Chesapeake City, MD | 14 mi | 42 min | W 1 G 2.9 | 44°F | 47°F | 1025.6 hPa | ||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 16 mi | 42 min | W 11 G 12 | 47°F | 50°F | 1025.2 hPa | ||
| MRCP1 - 8540433 - Marcus Hook, PA | 23 mi | 48 min | 46°F | 45°F | 1024.9 hPa | |||
| DRSD1 - Delaware Reserve, DE | 28 mi | 102 min | W 1.9 | 46°F | 1024 hPa | 32°F | ||
| PHBP1 - 8545240 - Philadelphia, PA | 37 mi | 42 min | 45°F | 43°F | 1024.3 hPa | |||
| TCBM2 - 8573364 - Tolchester Beach, MD | 41 mi | 42 min | NW 6 G 7 | 46°F | 47°F | 1025.9 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 42 mi | 42 min | Calm G 1 | 1025.6 hPa | ||||
| BDSP1 | 42 mi | 42 min | 46°F | 44°F | 1024.7 hPa | |||
| CMAN4 - 8536110 - Cape May, NJ | 48 mi | 42 min | NW 5.1 G 6 | 46°F | 49°F | 1024.8 hPa |
Wind History for Delaware City, DE
(wind in knots) EDIT (on/off) Help| 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | W G8 | SW | W G7 | W | SW G7 | W G5 | W G7 | W G6 | W G9 | W G9 | W G9 | NW G15 | W G8 | W G9 | NW G14 | NW G12 | NW G12 | NW G15 | NW G14 | NW G13 | N G10 | NW G10 | NW G8 | W |
| 1 day ago | NE G30 | NE G28 | NE G21 | NE G18 | NE | NE G14 | N G17 | NE G22 | NW G11 | NW G25 | NW G30 | NW G23 | NW G17 | NW G17 | NW G20 | NW G22 | NW G22 | NW G20 | W G17 | W G13 | W G13 | W G13 | W G12 | W G13 |
| 2 days ago | N G14 | N G14 | N G15 | NE | NE G11 | NE G15 | NE | NE | NE G14 | NE G12 | NE | E G13 | NE G12 | NE G15 | NE G11 | NE G14 | NE G14 | NE | NE G17 | NE G20 | NE G19 | NE | NE G27 | NE G30 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wilmington, New Castle County Airport, DE | 13 mi | 21 min | W 4 | 10.00 mi | Fair | 42°F | 30°F | 62% | 1025.5 hPa |
Wind History from ILG (wind in knots)
| 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | W | W | W | SW | W | SW | SW | W | W | W | SW | W | W | SW | W | W | NW G21 | NW G21 | NW G23 | W | NW | NW | NW | W |
| 1 day ago | NE G33 | NE G31 | NE G34 | NE G25 | NE G22 | NE | NE G19 | NE | NW G18 | NW G31 | NW G34 | NW G27 | W G21 | W G23 | NW G23 | NW G26 | NW G27 | NW G28 | W | W G24 | W G21 | W | W G20 | W |
| 2 days ago | N | N | N | NE | NE | NE | NE | NE | E | NE | NE | NE | NE | NE | NE | NE | NE G24 | NE G22 | NE G24 | NE G28 | NE G29 |
Tide / Current Tables for Artificial Island, Salem Nuclear Plant, New Jersey
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataArtificial Island
Click for Map
Sat -- 12:43 AM EST Moonset
Sat -- 05:51 AM EST 5.48 feet High Tide
Sat -- 06:48 AM EST Sunrise
Sat -- 12:13 PM EST 0.68 feet Low Tide
Sat -- 02:08 PM EST Moonrise
Sat -- 04:45 PM EST Sunset
Sat -- 06:09 PM EST 5.89 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:43 AM EST Moonset
Sat -- 05:51 AM EST 5.48 feet High Tide
Sat -- 06:48 AM EST Sunrise
Sat -- 12:13 PM EST 0.68 feet Low Tide
Sat -- 02:08 PM EST Moonrise
Sat -- 04:45 PM EST Sunset
Sat -- 06:09 PM EST 5.89 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 |
| 0.6 | 1.1 | 2.3 | 3.6 | 4.6 | 5.2 | 5.5 | 5 | 3.9 | 2.7 | 1.7 | 1.1 | 0.7 | 0.9 | 2.1 | 3.6 | 4.7 | 5.5 | 5.9 | 5.6 | 4.7 | 3.4 | 2.2 | 1.4 |
Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
EDIT (on/off) Help One Week of DataChesapeake and Delaware Canal
Click for Map
Sat -- 12:45 AM EST Moonset
Sat -- 01:57 AM EST 2.02 knots Max Flood
Sat -- 04:56 AM EST -0.08 knots Slack
Sat -- 06:49 AM EST Sunrise
Sat -- 07:48 AM EST -1.66 knots Max Ebb
Sat -- 11:11 AM EST 0.04 knots Slack
Sat -- 02:09 PM EST Moonrise
Sat -- 02:17 PM EST 1.77 knots Max Flood
Sat -- 04:40 PM EST -0.08 knots Slack
Sat -- 04:46 PM EST Sunset
Sat -- 08:00 PM EST -1.85 knots Max Ebb
Sat -- 11:18 PM EST 0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:45 AM EST Moonset
Sat -- 01:57 AM EST 2.02 knots Max Flood
Sat -- 04:56 AM EST -0.08 knots Slack
Sat -- 06:49 AM EST Sunrise
Sat -- 07:48 AM EST -1.66 knots Max Ebb
Sat -- 11:11 AM EST 0.04 knots Slack
Sat -- 02:09 PM EST Moonrise
Sat -- 02:17 PM EST 1.77 knots Max Flood
Sat -- 04:40 PM EST -0.08 knots Slack
Sat -- 04:46 PM EST Sunset
Sat -- 08:00 PM EST -1.85 knots Max Ebb
Sat -- 11:18 PM EST 0.01 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 |
| 1.4 | 1.8 | 2 | 1.8 | 1.2 | -0.3 | -1.2 | -1.6 | -1.7 | -1.4 | -1 | -0.4 | 0.9 | 1.4 | 1.7 | 1.7 | 1.1 | -0.7 | -1.4 | -1.7 | -1.8 | -1.7 | -1.3 | -0.6 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (18,4,5,8)
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Ground Weather Radar Station Dover AFB, DE
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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. |