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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 5:36AM | Sunset 8:18PM | Monday May 27, 2019 12:08 AM EDT (04:08 UTC) | Moonrise 2:18AM | Moonset 1:31PM | Illumination 43% |  |
ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 918 Pm Edt Sun May 26 2019
Rest of tonight..NW winds around 5 kt. Waves 2 ft or less. Scattered showers and tstms.
Mon..NE winds around 5 kt, becoming E late. Waves 2 ft or less.
Mon night..S winds 5 to 10 kt. Waves 2 ft or less.
Tue..S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 ft or less. A chance of showers.
Tue night..S winds 5 to 10 kt. Waves 2 ft or less. A chance of showers.
Wed..SW winds 5 to 10 kt. Waves 2 ft or less.
Wed night..SW winds around 10 kt. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers.
Thu..SW winds around 10 kt. Gusts up to 20 kt in the afternoon. Waves 2 ft or less.
Thu night..SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers.
Fri..W winds around 10 kt with gusts up to 20 kt. Waves 2 ft or less. A chance of showers in the morning.
Fri night..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers. Winds and waves higher in and near tstms.
Rest of tonight..NW winds around 5 kt. Waves 2 ft or less. Scattered showers and tstms.
Mon..NE winds around 5 kt, becoming E late. Waves 2 ft or less.
Mon night..S winds 5 to 10 kt. Waves 2 ft or less.
Tue..S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 ft or less. A chance of showers.
Tue night..S winds 5 to 10 kt. Waves 2 ft or less. A chance of showers.
Wed..SW winds 5 to 10 kt. Waves 2 ft or less.
Wed night..SW winds around 10 kt. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers.
Thu..SW winds around 10 kt. Gusts up to 20 kt in the afternoon. Waves 2 ft or less.
Thu night..SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers.
Fri..W winds around 10 kt with gusts up to 20 kt. Waves 2 ft or less. A chance of showers in the morning.
Fri night..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers. Winds and waves higher in and near tstms.
ANZ400 918 Pm Edt Sun May 26 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A cold front will cross our region overnight, then high pressure builds to our north Monday and Monday night. This high builds offshore early Tuesday, while a warm front lifts across our area. This front may stall through Wednesday while a couple of low pressure systems move eastward along it. This front then lifts to our north Wednesday night, before a couple of cold front move across the area later Thursday into Friday.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A cold front will cross our region overnight, then high pressure builds to our north Monday and Monday night. This high builds offshore early Tuesday, while a warm front lifts across our area. This front may stall through Wednesday while a couple of low pressure systems move eastward along it. This front then lifts to our north Wednesday night, before a couple of cold front move across the area later Thursday into Friday.
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 270038 afdphi area forecast discussion national weather service mount holly nj 838 pm edt Sun may 26 2019 Synopsis A cold front will cross our region overnight, then high pressure builds to our north Monday and Monday night. This high builds offshore early Tuesday, while a warm front lifts across our area. This front may stall through Wednesday while a couple of low pressure systems move eastward along it. This front then lifts to our north Wednesday night, before a couple of cold front move across the area later Thursday into Friday. Near term until 6 am Monday morning As of 830 pm, an update has been sent to include severe thunderstorm watch #258 for our maryland and delaware zones which GOES until 1 am. Main threat is locally damaging winds and some hail. Some initial training may result in locally very heavy rain. A mid level impulse is moving across central pennsylvania as of this writing near a surface cold front. It is this feature that is aiding in large scale forcing and therefore an increase in showers and some thunderstorms has occurred. This looks to move across portions of the northern zones, therefore the pops were increased quite a bit for awhile this evening. In addition, a convectively generated boundary looks to be draped across far southern new jersey westward and new convection has rapidly developed along it as some better ascent has arrived. While convective coverage has been rather sparse overall, some increase in deeper convection is expected especially across the far southern areas given the instability and shear parameters. Any stronger convective cores that are sustained will have the potential to produce locally strong to damaging winds especially given some dry air aloft leading to a downburst potential. Some hail is possible, however severe hail would be limited to any isolated robust sustained core. The severe threat looks to be mostly for maryland and delaware and perhaps into far southern new jersey. It is here where some enhancement could take place by late evening from the convective complex now in the eastern ohio and west virginia areas. Once the cold front clears the area overnight, some drier air will begin to advect in from the northwest. Plenty of mid to high level clouds streaming across the area this evening, some of which is convective cloud debris, will thin out late tonight behind the cold front. Short term 6 am Monday morning through 6 pm Monday Memorial day should be a pleasant day for much of the region. The only possible exception is portions of delmarva. If the front stalls over this area, showers and storms could linger in delmarva through the day. Although there is still some uncertainty, so I stayed close to the previous forecast, it is worth noting that some of the 12z models show this front clearing much further south, leaving the entire region dry. Temperatures behind the front will be 5 to 10 degrees lower than Sunday, with highs mostly in the 70s and lower 80s. Despite the northwesterly flow, a sea breeze could develop later in the day, cooling coastal areas further. Long term Monday night through Sunday An unsettle pattern continues for much of the upcoming week into the weekend, with several rounds of showers and thunderstorms. Monday night will start out fairly quiet as high pressure builds to our north. Very late in the night, the high pressure begins to lose any grip it has on our area as a frontal boundary begins to lift northward, and as a short wave vorticity impulse moves into the area, scattered showers and thunderstorms may develop late Monday night into early Tuesday morning. As we go into Tuesday, the front lifting toward the area is forecast to slow down and may stall out across the region later Tuesday, into Tuesday night, and into Wednesday as well as several waves of low pressure move along the boundary. As multiple rounds of short waves vorticity impulses aloft move across the area within the northwest-west flow aloft, showers and thunderstorms will continue in the forecast Tuesday- Wednesday, although it will not rain the entire time. The higher probabilities will be tied to the passages of the short waves. As we move into Wednesday night, the frontal boundary is expected to lift to our north, and precipitation chances will lower through Wednesday night, although not be zero as there will remain unsettled conditions with an additional short wave vorticity impulse affect the area. On Thursday and Friday, a couple of frontal boundaries are forecast to move across the area. The front on Thursday currently looks to be the stronger of the two, and has a better chance of showers and thunderstorms to be associated with it. |
Thursday also has higher pw values at 1.5-2.0 for some areas, so it will have a higher threat for heavy rainfall, although pw values remain over an inch into Friday. Dry weather may return for early Saturday as high pressure briefly builds across the northeast and into our area. However, showers may begin to develop during the afternoon as return flow develops and a short wave moves across the area. Also, another cold front is currently forecast to move toward the area on Sunday, which could bring another round of showers and thunderstorms to the area. Temperatures through most of the extended period are forecast to be above normal, with Tuesday possibly being the coolest day and below or near normal. Aviation 01z Monday through Friday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Tonight... Some showers and thunderstorms around through about midnight, with greatest coverage possible near abe and rdg then near and south from about ilg to acy. Local and brief MVFR ifr conditions (especially visibility) will occur with any heavier shower or thunderstorm. Otherwise,VFR. Westerly winds mainly 5-10 knots, becoming all light northerly overnight. Monday...VFR. North winds 5-10 knots, becoming locally west and southwest later in the afternoon. A sea breeze at acy and miv will result in a wind shift to east to southeast. Outlook... Monday night... GenerallyVFR condition expected, although clouds increase and lower late in the night with a chance of showers. Winds become northeast 5-10 knots overnight. Tuesday-Tuesday night... MVFR ceilings may develop early Tuesday as a warm front lifts across the area and continue into the night. Chance of showers and thunderstorms during the period. East to northeast winds Tuesday and Tuesday evening, become southeast Tuesday night. Wednesday-Wednesday night... MVFR conditions possible early, then lifting toVFR during the morning. Showers and thunderstorms remain possible, especially Wednesday afternoon and evening. Winds shift to southwest early and may gust 15-20 knots during the day. Thursday-Thursday night... GenerallyVFR, except lower conditions possible with showers and thunderstorms Thursday afternoon and night. Southwest winds may gust 15-20 knots during the day Thursday. Friday... GenerallyVFR, except lower conditions possible with showers and thunderstorms during the day. Southwest winds may gust 20-25 knots during the day. Marine Winds and seas are expected to remain below small craft advisory criteria through memorial day. Some thunderstorms with gusty winds will be possible this evening mainly south of atlantic city. Outlook... Monday night-Friday... Conditions expected to remain below advisory levels through the period, although winds may gust around 20 knots at times. There is a chance of showers and thunderstorms each day, which could produce locally higher winds and waves should they occur. Rip currents... the risk for the formation of dangerous rip currents increases to moderate on Monday. A long period swell (around 10 seconds) combined with some increase in the wind as it turns onshore, enhancing a sea breeze some, is expected to result in an elevated rip current risk on memorial day especially in the afternoon. Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... None. Synopsis... Robertson near term... Gorse short term... Johnson long term... Robertson aviation... Gorse robertson marine... Gorse johnson robertson |
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 | 38 min | NE 5.1 G 6 | 67°F | 65°F | 1013.2 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 8 mi | 38 min | 1015.3 hPa | |||||
| LWSD1 - 8557380 - Lewes, DE | 14 mi | 38 min | NW 26 G 42 | 71°F | 64°F | 1014.9 hPa | ||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 33 mi | 38 min | W 7 G 14 | 69°F | 70°F | 1013.8 hPa | ||
| 44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ | 37 mi | 78 min | SW 7.8 G 7.8 | 70°F | 66°F | 3 ft | 1012.8 hPa (-0.3) | 70°F |
| ACYN4 - 8534720 - Atlantic City, NJ | 41 mi | 38 min | 76°F | 59°F | 1013.1 hPa | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 43 mi | 38 min | SW 8.9 G 11 | 71°F | 73°F | 1013.7 hPa | ||
| OCSM2 | 43 mi | 188 min | 3 ft | |||||
| JCRN4 - Jacques Cousteau Reserve, NJ | 49 mi | 98 min | Calm | 68°F | 1013 hPa | 65°F |
Wind History for Cape May, NJ
(wind in knots) EDIT (on/off) Help| 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 | |
| Last 24hr | SE G14 | SE G15 | SE G5 | SE | SE | S | SW G8 | W | W | W | NW | NW | NW G7 | W | W | SW | SW | S G14 | S | SE G8 | S | SE | W G16 | N G7 |
| 1 day ago | E | NE | NE | NE G10 | E G11 | E | E | E | E G15 | E G13 | E G14 | E | E G15 | E G15 | E G15 | E G16 | SE | E G16 | SE G15 | SE G13 | SE | SE G13 | SE G11 | SE G13 |
| 2 days ago | S G10 | SW | SW | W | W | NW G12 | W G12 | NW G14 | NW G20 | NW G19 | NW G20 | NW G17 | NW G11 | NW G13 | NW G12 | NW G21 | NW G18 | NW | NW G10 | NW | NW G9 | NW G6 | N | E G9 |
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 | 12 min | NW 6 | 10.00 mi | Thunderstorm Rain | 66°F | 64°F | 93% | 1014.6 hPa |
Wind History from WWD (wind in knots)
| 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 | 12 AM | |
| Last 24hr | S G18 | SW | S | S | SW | SW | W | W | W | W | W | W | W | W | W | W | SW | S | S | S | Calm | W | NW | NW |
| 1 day ago | Calm | NE | E | E | E | E | E | SE | SE | SE | SE | S | SE | SE | SE | SE | SE | SE G18 | S | S | S | S | S | S |
| 2 days ago | SW | SW | W G17 | W | W | W | W G14 | NW G15 | NW G21 | NW G21 | NW G22 | NW G20 | NW G22 | W G19 | NW G20 | NW G23 | NW G18 | W | N | Calm | E | E |
Tide / Current Tables for Cape May Point, Sunset Beach, Delaware Bay, New Jersey
EDIT Weekend mode (on/off) (on/off) Help One Week of DataCape May Point
Click for Map
Mon -- 02:18 AM EDT Moonrise
Mon -- 03:32 AM EDT 4.60 feet High Tide
Mon -- 05:38 AM EDT Sunrise
Mon -- 09:56 AM EDT 0.82 feet Low Tide
Mon -- 01:31 PM EDT Moonset
Mon -- 04:11 PM EDT 4.20 feet High Tide
Mon -- 08:15 PM EDT Sunset
Mon -- 10:10 PM EDT 1.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:18 AM EDT Moonrise
Mon -- 03:32 AM EDT 4.60 feet High Tide
Mon -- 05:38 AM EDT Sunrise
Mon -- 09:56 AM EDT 0.82 feet Low Tide
Mon -- 01:31 PM EDT Moonset
Mon -- 04:11 PM EDT 4.20 feet High Tide
Mon -- 08:15 PM EDT Sunset
Mon -- 10:10 PM EDT 1.06 feet Low 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 |
| 2.4 | 3.3 | 4.1 | 4.5 | 4.6 | 4.2 | 3.5 | 2.6 | 1.7 | 1 | 0.8 | 1 | 1.6 | 2.4 | 3.2 | 3.9 | 4.2 | 4.1 | 3.6 | 2.9 | 2.1 | 1.4 | 1.1 | 1.2 |
Tide / Current Tables for Delaware Bay Entrance, Delaware Current
EDIT (on/off) Help One Week of DataDelaware Bay Entrance
Click for Map
Mon -- 01:49 AM EDT 0.94 knots Max Flood
Mon -- 02:18 AM EDT Moonrise
Mon -- 04:58 AM EDT -0.00 knots Slack
Mon -- 05:39 AM EDT Sunrise
Mon -- 08:28 AM EDT -0.93 knots Max Ebb
Mon -- 11:35 AM EDT 0.00 knots Slack
Mon -- 01:31 PM EDT Moonset
Mon -- 02:30 PM EDT 0.83 knots Max Flood
Mon -- 05:36 PM EDT -0.00 knots Slack
Mon -- 08:15 PM EDT Sunset
Mon -- 08:53 PM EDT -0.78 knots Max Ebb
Mon -- 11:34 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:49 AM EDT 0.94 knots Max Flood
Mon -- 02:18 AM EDT Moonrise
Mon -- 04:58 AM EDT -0.00 knots Slack
Mon -- 05:39 AM EDT Sunrise
Mon -- 08:28 AM EDT -0.93 knots Max Ebb
Mon -- 11:35 AM EDT 0.00 knots Slack
Mon -- 01:31 PM EDT Moonset
Mon -- 02:30 PM EDT 0.83 knots Max Flood
Mon -- 05:36 PM EDT -0.00 knots Slack
Mon -- 08:15 PM EDT Sunset
Mon -- 08:53 PM EDT -0.78 knots Max Ebb
Mon -- 11:34 PM EDT 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 |
| 0.5 | 0.8 | 0.9 | 0.8 | 0.4 | -0 | -0.5 | -0.7 | -0.9 | -0.9 | -0.6 | -0.2 | 0.2 | 0.5 | 0.8 | 0.8 | 0.6 | 0.3 | -0.2 | -0.5 | -0.7 | -0.8 | -0.6 | -0.2 |
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (0,6,7,8)
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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. |