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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 6:10AM | Sunset 7:46PM | Sunday April 22, 2018 2:18 PM EDT (18:18 UTC) | Moonrise 11:57AM | Moonset 1:46AM | Illumination 49% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 1231 Pm Edt Sun Apr 22 2018 This afternoon..SE winds around 10 kt. Waves 2 ft or less. Tonight..S winds 5 to 10 kt, becoming E late. Waves 2 ft or less. Patchy fog after midnight with vsby 1 to 3 nm. Mon..SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 2 ft or less. Patchy fog early in the morning with vsby 1 to 3 nm. Mon night..SE winds 5 to 10 kt. Waves 2 ft or less, then around 3 ft late. Tue..SE winds 10 to 15 kt, becoming E 15 to 20 kt in the afternoon. Gusts up to 30 kt. Waves 3 to 4 ft. A chance of rain. Tue night..SE winds 15 to 20 kt with gusts up to 30 kt. Waves 3 to 4 ft. Rain. Patchy fog. Vsby 1 to 3 nm. Wed..SE winds 10 to 15 kt, becoming S 5 to 10 kt in the afternoon. Waves 3 to 4 ft in the morning, then 2 ft or less. Rain. Patchy fog. Vsby 1 to 3 nm. Wed night..S winds 5 to 10 kt, becoming sw after midnight. Waves 2 ft or less, then around 3 ft after midnight. A chance of rain in the evening, then a chance of showers after midnight. Thu..W winds 10 to 15 kt. Waves around 3 ft in the morning, then 2 ft or less. A chance of showers. Thu night..W winds 5 to 10 kt. Waves 2 ft or less. | ANZ400 1231 Pm Edt Sun Apr 22 2018 Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure over eastern canada and the northeast united states will slowly build east and move off the new england coast on Monday. Meanwhile, low pressure over the western gulf coast states will track to the north and east and impact the mid-atlantic and northeast for the middle of the week. Another low may affect the area at the end of the week, and then a cold front may pass through the region next weekend. |
7 Day Forecast for Marine Location Near Cape May Point , NJ
Hourly EDIT Helplocation: 38.95, -74.97 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 221639 afdphi area forecast discussion national weather service mount holly nj 1239 pm edt Sun apr 22 2018 Synopsis High pressure over eastern canada and the northeast united states will slowly build east and move off the new england coast on Monday. Meanwhile, low pressure over the western gulf coast states will track to the north and east and impact the mid-atlantic and northeast for the middle of the week. Another low may affect the area at the end of the week, and then a cold front may pass through the region next weekend. Near term until 6 pm this evening For the 1230 pm update, adjusted some temperatures to show a bit faster rise away from the coast based on trends. Dew points have lowered quite a bit across much of the region, therefore significant adjustments were needed for some areas. To the south and east of the fall line, dew points should increase some toward late afternoon as a sea breeze makes some inland progress. A sea breeze front is evident across coastal new jersey on radar and mesonet observations. The sea breeze will have an impact on temperatures as well, and the going forecast looks to have this covered. Some high clouds will continue to move across the area, however these continue to look to be more thinned. Short term 6 pm this evening through 6 am Monday Main forecast concern tonight is the development of fog near the coast as remnant (light) onshore flow from the sea breeze combines with dropping temperatures to allow for low-level saturation. Spread the mention of fog a little bit further inland in southern eastern nj and coastal delaware, though not expecting widespread dense fog at this point. With the surface ridge in place, winds will likely decouple fast, and with clear skies thanks to being upstream of passing northwest- flow midlevel perturbations, temperatures will fall readily. I went a little below guidance for lows tonight, and would not be surprised to see the low-lying spots with a little frost late. However, suspect this will be quite patchy at best, so made no mention of this in the grids at this point. Forecast lows are similar to tonight's values. Long term Monday through Saturday Unsettled weather on tap for much of the new week as low pressure lifts along the coast. High pressure over the northeast u.S. Moves off the new england coast on Monday, and then slowly tracks out to sea Monday night and Tuesday. Onshore flow develops, and although temperatures climb into the 60s for most inland areas, temperatures will be colder along the coast with highs staying in the 50s. Low pressure tracking along the gulf coast states will be over the southeast u.S. Monday evening, and then the low lifts along the coast Monday night and Tuesday. Onshore flow will usher in an increasingly moist airmass into the region, and pwats will increase to around 1.25" Tuesday night and Wednesday morning. This may allow for a period of moderate to locally heavy rain during this time. The low will be off the mid-atlantic coast Wednesday morning, and then the low tracks north during the day Wednesday and will be north of the region by Wednesday night. From there, conditions generally dry out Wednesday night and Thursday, but there is the potential for unsettled weather to continue into Friday as several weak upper level disturbances pass through the region. There is the chance for another coastal low on Friday, as the cmc-gdps indicates this low, but the gfs and the ECMWF do not. The GFS has a quick moving cold front that the ECMWF holds off until Saturday. For now, will carry chance pops Friday through Saturday due to low confidence. |
Temperatures during this time will generally be near or below normal levels for most of the week. Aviation 18z Sunday through Friday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. This afternoon...VFR with some high clouds. Light and variable winds to locally west or northwest mainly less than 10 knots. A sea bay breeze will result in a wind shift to south or southeast around 10 knots by later this afternoon at acy, miv, and ilg. For phl, light enough flow is resulting in a more southeast (light) surface wind direction however this may turn more south-southwest for a time this afternoon. Tonight...VFR. Winds quickly becoming light and variable to locally calm. Monday...VFR. There is a small chance of MVFR visibility due to light fog at miv and acy early in the morning. Light and variable to calms winds, becoming south-southeast 5-10 knots in the afternoon. Outlook... Monday night...VFR. Winds mainly light and variable. Tuesday through Thursday... MVFR ifr conditions expected in rain and fog, especially Tuesday night through Wednesday afternoon. Easterly wind gusts up to 20 kt are possible Tuesday night into Wednesday. Otherwise, generally light winds (less than 10 kt) are expected. Medium confidence on flight categories, but low confidence on the timing of any flight category changes. Marine Winds seas will remain below advisory levels through tonight. Winds will become southerly during the afternoon, with speeds 10 to 15 kts, before becoming light and variable overnight. Seas will likely remain below 3 feet through the period. There is potential for at least patchy fog overnight, with visibility restrictions possible. Chances are particularly high in delaware bay and adjacent portions of the southern nj de atlantic coastal waters, where light easterly southeasterly surface flow may remain for most of the night. Outlook... Monday night... Winds and seas are expected to remain below sca criteria. Tuesday and Wednesday... East winds increase to 15-20 kt with gusts up to 25 kt, and seas build to 8-10 feet on the ocean. Wind gusts to 25 kt also expected on de bay. Wednesday night and Thursday... Winds shift to the northwest and subsequently decrease. The main question will be how long seas remain above 5 feet on the coastal waters. Current forecast is for elevated seas into late Thursday. Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... None. Synopsis... Mps near term... Gorse short term... Cms long term... Mps aviation... Cms gorse 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 |
| CMAN4 - 8536110 - Cape May, NJ | 1 mi | 49 min | SE 8 G 11 | 54°F | 51°F | 1029.7 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 8 mi | 49 min | S 12 G 13 | 50°F | 1030.6 hPa | |||
| LWSD1 - 8557380 - Lewes, DE | 14 mi | 49 min | ESE 12 G 14 | 53°F | 51°F | 1030.1 hPa | ||
| DRSD1 - Delaware Reserve, DE | 27 mi | 109 min | E 5.1 | 58°F | 1030 hPa | 26°F | ||
| 44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ | 37 mi | 89 min | ENE 5.8 G 7.8 | 48°F | 47°F | 1 ft | 1030.9 hPa (+0.0) | 37°F |
| ACYN4 - 8534720 - Atlantic City, NJ | 41 mi | 49 min | 50°F | 51°F | 1030.2 hPa | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 43 mi | 49 min | E 8 G 11 | 52°F | 50°F | 1030.8 hPa | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 49 mi | 49 min | ESE 9.9 | 57°F | 1029 hPa | 26°F |
Wind History for Cape May, NJ
(wind in knots) EDIT (on/off) Help| 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 | 12 PM | 1 PM | |
| Last 24hr | NW G12 | NW | W | W | S | S G12 | S G13 | S G11 | S G12 | SW | SW | SW | SW | W | NW G6 | N | N | N | NE | E G5 | E | W | SE G9 | SE |
| 1 day ago | NW G13 | NW G18 | NW G19 | NW | NW G15 | NW G15 | NW G5 | W | N G13 | NE G9 | NE | N G9 | N G9 | N G6 | N | N G8 | N G9 | NW | N G12 | N G12 | NW G12 | NW | NW | NW G12 |
| 2 days ago | SW | NW G24 | NW G32 | NW G27 | NW G20 | NW G35 | NW G31 | NW G32 | SE G16 | W G15 | SE G6 | NW G13 | NW G19 | NW G13 | N G14 | NW G20 | W G12 | NW G14 | SW G9 | NW G17 | NW G24 | NW G26 | NW G27 | N G8 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wildwood, Cape May County Airport, NJ | 6 mi | 24 min | SE 11 | 10.00 mi | Fair | 57°F | 27°F | 32% | 1030.5 hPa |
Wind History from WWD (wind in knots)
| 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 | 12 PM | 1 PM | 2 PM | |
| Last 24hr | W | W G16 | W | W | S | S | S | S | SW | S | SW | SW | W | NW | Calm | Calm | Calm | NE | NE | E | E | E | SE | SE |
| 1 day ago | NW G21 | NW G19 | NW G18 | NW G18 | NW | N | N | N | N | N | N | N | N | N | N | N | NW | N | N | N | NW G14 | W | W G18 | W G16 |
| 2 days ago | NW G19 | NW G21 | NW G21 | NW G24 | NW G22 | NW G26 | NW G22 | NW G23 | NW G19 | NW G20 | W G17 | NW G16 | N G15 | NW G15 | NW G19 | NW G20 | NW G22 | NW G18 | NW G20 | NW G22 | NW G24 | NW G23 | NW G21 |
Tide / Current Tables for Cape May Point, Sunset Beach, Delaware Bay, New Jersey
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Cape May Point Click for Map Sun -- 01:45 AM EDT Moonset Sun -- 02:05 AM EDT 5.55 feet High Tide Sun -- 06:13 AM EDT Sunrise Sun -- 08:26 AM EDT 0.22 feet Low Tide Sun -- 11:57 AM EDT Moonrise Sun -- 02:44 PM EDT 4.28 feet High Tide Sun -- 05:46 PM EDT First Quarter Sun -- 07:43 PM EDT Sunset Sun -- 08:32 PM EDT 0.41 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 4.3 | 5.2 | 5.5 | 5.3 | 4.6 | 3.4 | 2.1 | 0.9 | 0.3 | 0.3 | 0.8 | 1.7 | 2.7 | 3.6 | 4.2 | 4.3 | 3.9 | 3.2 | 2.2 | 1.1 | 0.5 | 0.5 | 1 | 1.9 |
Tide / Current Tables for Delaware Bay Entrance, Delaware Current
EDIT (on/off) Help One Week of Data| Delaware Bay Entrance Click for Map Sun -- 12:22 AM EDT 1.65 knots Max Flood Sun -- 01:45 AM EDT Moonset Sun -- 03:39 AM EDT -0.00 knots Slack Sun -- 06:14 AM EDT Sunrise Sun -- 07:28 AM EDT -1.50 knots Max Ebb Sun -- 10:25 AM EDT 0.00 knots Slack Sun -- 11:58 AM EDT Moonrise Sun -- 01:09 PM EDT 1.37 knots Max Flood Sun -- 04:16 PM EDT -0.00 knots Slack Sun -- 05:46 PM EDT First Quarter Sun -- 07:43 PM EDT -1.26 knots Max Ebb Sun -- 07:43 PM EDT Sunset Sun -- 10:20 PM EDT 0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 1.6 | 1.6 | 1.1 | 0.4 | -0.2 | -0.8 | -1.2 | -1.5 | -1.4 | -1 | -0.3 | 0.4 | 1.1 | 1.4 | 1.2 | 0.8 | 0.2 | -0.4 | -0.9 | -1.2 | -1.2 | -0.9 | -0.3 | 0.5 |
Weather Map and Satellite Images
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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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (14,3,4,5)
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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. |