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Marine Weather and Tides
Version 3.4 |
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. 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 5:34AM | Sunset 8:32PM | Wednesday June 28, 2017 3:14 AM EDT (07:14 UTC) | Moonrise 10:41AM | Moonset 12:00AM | Illumination 18% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 141 Am Edt Wed Jun 28 2017 .small craft advisory in effect until 6 am edt early this morning... Rest of tonight..NW winds 5 to 10 kt. Gusts 25 to 30 kt for a time. Waves around 3 ft, then 2 ft or less late. Wed..NW winds 5 to 10 kt, becoming W early in the afternoon, then becoming S 10 to 15 kt late. Waves 2 ft or less. Wed night..S winds 10 to 15 kt, becoming sw 5 to 10 kt in the late evening and overnight. Waves 2 ft or less. Thu..SW winds 5 to 10 kt, becoming S 15 to 20 kt. Waves 2 ft or less, then around 3 ft early in the afternoon. Thu night..SW winds 15 to 20 kt. Waves around 3 ft. Fri..SW winds 10 to 15 kt. Waves around 3 ft. Fri night..S winds 10 to 15 kt. Waves around 3 ft. Sat..S winds 10 to 15 kt. Waves around 3 ft. Sat night..S winds 10 to 15 kt. Waves around 3 ft. A chance of showers and tstms. Sun..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms. Sun night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms in the evening. Winds and waves higher in and near tstms. | ANZ400 141 Am Edt Wed Jun 28 2017 Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure will build across the mid- atlantic region today. The high will move offshore for Thursday and Friday, returning our area to southwest flow. Another weak cold front is expected this weekend, bringing a chance of showers through early next week. |
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 280559 afdphi area forecast discussion national weather service mount holly nj 159 am edt Wed jun 28 2017 Synopsis High pressure builds over the mid- atlantic region through today. The high will move offshore Thursday and Friday, returning our area to southwest flow. Another weak cold front is expected this weekend, bringing a chance of showers through early next week, especially if the front stalls. Near term through today Early this morning... Mostly clear. Light northwest winds. Today... Sunny or mostly sunny and comfortably cool for summer with few or sct sc 16z- 21z AOA 5000 ft, mainly northwest of i-95. West northwest wind gusting 15-20 mph this morning becoming more westerly this afternoon and diminishing slightly. Dewpoints in the 40s while MAX temps 2 to 7 degrees below normal. One of the nicest days we'll see for quite a while. Forecast basis: a 50 50 blend of the 00z 28 GFS nam mos. Short term tonight Tonight... Mostly clear with some cirrus after midnight, especially northwest of i-95. Lowered 50 50 blended 00z 28 mos GFS nam temps a degree or two from that guidance due to light wind. These temps 1 to 4 degrees below normal. Long term Thursday through Tuesday The long term starts out with surface high pressure just off the mid-atlantic coast and associated fairly pleasant weather. However as the high moves farther offshore and low pressure moves into the great lakes, a more typical summertime SW flow will set up over the region. This in turn will cause increasing heat and humidity over the forecast area through the end of the week and into the weekend. At this point it appears that Saturday may be the most uncomfortable day with heat indices reaching the mid 90s along the i-95 urban corridor. Along with more heat and humidity will be gradually increasing chances for afternoon showers and thunderstorms. For Thursday and Friday it looks like any precip should remain well to the northwest of phl. By Saturday an upper-level trof and associated cold front are forecast to approach the mid-atlantic and also a surface trof is forecast to develop from eastern pa south to near the chesapeake bay. Enhanced low-level convergence is expected to result in more widespread afternoon convection on Saturday. For Sunday and beyond the forecast becomes more cloudy, as the models seem to disagree on whether a surface cold front can push through our area or whether it will stall out. Given the uncertainty, the forecast maintains at least a slight chance for showers t-storms through early next week. Temperatures are expected to be near or slightly above normal at that time. Aviation 06z Wednesday through Sunday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. |
Through today... .Vfr. Few or sct clouds AOA 6000 ft. West northwest wind gust around 15 kts. Tonight...VFR. Broken cirrus probably arrives toward dawn Thursday. Light southwest wind. Outlook... Thursday and Friday...VFR conditions expected. Southwest winds gusting up to 20 kt in the afternoon both days. Saturday and Sunday... MostlyVFR conditions but lower at times in scattered mainly afternoon showers and thunderstorms. Marine Sca issued around 140 am for de bay early this morning where widespread gusts 25-30 kt. These gusts should diminish toward dawn. Otherwise, no headlines through tonight. Northwest wind gust 15-20 kt at times during the daylight hours becomes south to southwest late this afternoon and continues tonight. Gusts to 25 kt possible late this afternoon nnj waters. Outlook... Thursday and Friday... SCA conditions may develop Thursday afternoon and continue into Friday due to increasing SW winds and building seas. Saturday and Sunday... Winds and seas are expected to be somewhat below SCA levels. Rip currents... The forecast is for a low risk of rip currents for Wednesday. However, southwest winds will increase to around 15 kts with higher gusts by late afternoon. With a 9-second period from a southeasterly direction, this may increase the rip current risk level, especially on the new jersey coast. Climate At 5 am: we will finish off the marginally warmer than normal month of june temperature assessment (except kmpo). Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... Small craft advisory until 6 am edt early this morning for anz430-431. Synopsis... Amc drag 2a near term... Drag 2a short term... Drag 2a long term... Amc aviation... Amc drag 2a marine... Amc drag 2a climate... 2a |
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 | 44 min | NE 1.9 G 6 | 69°F | 67°F | 1018 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 8 mi | 44 min | N 21 G 24 | 69°F | 1018.6 hPa | |||
| LWSD1 - 8557380 - Lewes, DE | 14 mi | 44 min | NNW 15 G 20 | 69°F | 70°F | 1018.3 hPa | ||
| DRSD1 - Delaware Reserve, DE | 27 mi | 59 min | NNW 1 | 63°F | 1019 hPa | 52°F | ||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 33 mi | 44 min | NNW 14 G 16 | 68°F | 77°F | 1018.2 hPa | ||
| 44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ | 37 mi | 84 min | WNW 16 G 18 | 69°F | 68°F | 1 ft | 1018 hPa (+0.9) | 59°F |
| ACYN4 - 8534720 - Atlantic City, NJ | 41 mi | 44 min | 65°F | 64°F | 1017.7 hPa | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 43 mi | 44 min | N 12 G 14 | 68°F | 67°F | 1018.6 hPa | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 49 mi | 44 min | W 5.1 | 62°F | 1018 hPa | 50°F |
Wind History for Cape May, NJ
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | |
| Last 24hr | S G9 | S | S | NE | W | W G13 | NW | NW | W | W | W | SW | NW | SW | SW | S G8 | S | W | W G15 | W | SW | W G5 | E G4 | N G4 |
| 1 day ago | W | NW G13 | W G9 | SW | N G9 | NE | E G7 | SW | SW | SW | SW | SW | SW | S | S G10 | SE G11 | SE | SE G12 | S G12 | S | S G8 | S | S | S G8 |
| 2 days ago | NW G7 | NE | NE | N | NE | NE | W G7 | SW | SW | SW | S | SE | SE | SE G11 | S G11 | S G12 | S G9 | SW | SW | W | W | NW G7 |
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 | 18 min | NNW 9 | 10.00 mi | Fair | 67°F | 50°F | 55% | 1018.9 hPa |
Wind History from WWD (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | |
| Last 24hr | W | NW | W | W | W | W | W | NW | S | S | SW | SW | SW | NW | NW G16 | NW | ||||||||
| 1 day ago | W | W | SW | S | S | S | S | S | S | S | S | S | S | |||||||||||
| 2 days ago | Calm | Calm | Calm | NE | NE | NE | E | Calm | W | W | S | S | S | S | S | S | SW | Calm | W | Calm | Calm |
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 Wed -- 12:23 AM EDT 6.03 feet High Tide Wed -- 05:36 AM EDT Sunrise Wed -- 06:38 AM EDT -0.33 feet Low Tide Wed -- 10:41 AM EDT Moonrise Wed -- 12:59 PM EDT 4.89 feet High Tide Wed -- 06:46 PM EDT 0.12 feet Low Tide Wed -- 08:29 PM EDT Sunset 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 |
| 6 | 5.9 | 5.1 | 3.8 | 2.2 | 0.7 | -0.2 | -0.3 | 0.3 | 1.3 | 2.5 | 3.8 | 4.6 | 4.9 | 4.6 | 3.7 | 2.5 | 1.2 | 0.3 | 0.1 | 0.6 | 1.5 | 2.8 | 4.1 |
Tide / Current Tables for Delaware Bay Entrance, Delaware Current
EDIT (on/off) Help One Week of Data| Delaware Bay Entrance Click for Map Wed -- 01:50 AM EDT -0.00 knots Slack Wed -- 05:28 AM EDT -1.67 knots Max Ebb Wed -- 05:37 AM EDT Sunrise Wed -- 08:30 AM EDT 0.00 knots Slack Wed -- 10:42 AM EDT Moonrise Wed -- 11:12 AM EDT 1.50 knots Max Flood Wed -- 02:21 PM EDT -0.00 knots Slack Wed -- 05:43 PM EDT -1.32 knots Max Ebb Wed -- 08:26 PM EDT 0.00 knots Slack Wed -- 08:29 PM EDT Sunset Wed -- 11:25 PM EDT 1.57 knots Max Flood 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 |
| 1.3 | 0.6 | -0.1 | -0.8 | -1.3 | -1.6 | -1.6 | -1.1 | -0.4 | 0.4 | 1.1 | 1.5 | 1.4 | 0.9 | 0.2 | -0.4 | -0.9 | -1.2 | -1.3 | -1 | -0.3 | 0.4 | 1.1 | 1.5 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Mid-Atlantic EDIT  |
Wind Forecast for Philadelphia/Mount Holly, PA (3,6,7,8)
(on/off) Help |  |  |
Ground Weather Radar Station Dover AFB, DE
(on/off) Help
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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. |