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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 6:08AM | Sunset 7:49PM | Tuesday April 24, 2018 8:28 AM EDT (12:28 UTC) | Moonrise 1:11PM | Moonset 2:22AM | Illumination 67% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 532 Am Edt Tue Apr 24 2018 .small craft advisory in effect from noon edt today through late tonight... Today..E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt late this morning, then increasing to 15 to 20 kt with gusts up to 25 kt this afternoon. Waves 2 ft or less, then around 3 ft this afternoon. A slight chance of rain early this afternoon. A chance of rain late. Tonight..E winds around 15 kt. Gusts up to 30 kt, decreasing to 20 kt late. Waves around 3 ft. Rain until early morning, then rain likely late. Patchy fog. Vsby 1 to 3 nm. Wed..E winds 10 to 15 kt with gusts up to 20 kt, becoming se 5 to 10 kt in the late morning and early afternoon, then becoming sw late. Waves 2 ft or less. Patchy fog in the morning. Rain likely early in the morning, then a chance of showers in the late morning and afternoon. Vsby 1 to 3 nm in the morning. Wed night..W winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt with gusts up to 20 kt late. Waves 2 ft or less, then around 3 ft late. A chance of showers until early morning. Thu..W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves around 3 ft in the morning, then 2 ft or less. Thu night..W winds 5 to 10 kt. Waves 2 ft or less. Fri..S winds around 5 kt. Waves 2 ft or less. A chance of showers. Fri night..S winds 5 to 10 kt, becoming sw after midnight. Waves 2 ft or less. Sat..W winds around 5 kt. Waves 2 ft or less. Sat night..NW winds 5 to 10 kt. Waves 2 ft or less. | ANZ400 532 Am Edt Tue Apr 24 2018 Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A low in the southeast will progress slowly northeastward through the mid-atlantic region, bringing widespread rain to the area Tuesday night and Wednesday. Another low to the south may move northeast near or off the east coast late this week. Broad high pressure will build into the eastern united states this weekend into early next week. |
7 Day Forecast for Marine Location Near Fairton, NJ
Hourly EDIT Helplocation: 39.38, -75.24 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 240723 afdphi area forecast discussion national weather service mount holly nj 323 am edt Tue apr 24 2018 Synopsis A low in the southeast will progress slowly northeastward through the mid-atlantic region, bringing widespread rain to the area Tuesday night and Wednesday. Another low to the south may move northeast near or off the east coast late this week. Broad high pressure will build into the eastern united states this weekend into early next week. Near term until 6 pm this evening 1035 mb high pressure remains anchored well south and east of cape cod. Meanwhile, low pressure lies over the southeast u.S., and will lift to the north and east throughout the day today. The offshore high will be slow to depart today, and based on latest model trends, seems to have an influence on how far north and east the low will be able to make today. As a result, the latest models seem to have slowed down the onset of precip associated with the low. 00z NAM rgem gfs ECMWF and even the 00z hrrrx all seem to keep much of nj dry until 00z, and only light precip through the DELMARVA and southeast pa. As a result, went ahead and lowered pops across the region for most of the day, and will hold off on bringing likely pops into southwest portions of the CWA until towards the end of the first forecast period. Onshore flow will keep coastal areas much cooler than inland areas, and highs will only be in the 50s for coastal nj de, and in the lower 60s for much of the coastal plain of nj and interior portions of the delmarva. Short term 6 pm this evening through 6 pm Wednesday High pressure over the western atlantic drifts out to sea this evening, and then low pressure over the southeast lifts into the mid- atlantic by midnight tonight, then continues to lift through the delmarva by Wednesday morning, then continues to track to the north and east and will be north of nyc by early Wednesday evening. As an upper trough digs into the northeast, models indicating a weak secondary low possibly forming over the mid-atlantic, and this low lifts through the region during the day Wednesday. Onshore flow ushers abundant low level moisture into the region mainly from after midnight tonight through around daybreak Wednesday, and this will be the window for potentially heavy rain. Pwats will range from 1.25-1.5". Showers generally taper off from south to north Wednesday morning afternoon, but another round of showers is possible as that weak secondary low lifts through the region. Long term Wednesday night through Monday Main forecast concern in the long-term period is the large model disagreement remaining with a system's track from the southeast to the western atlantic late this week and potential impacts, if any, in the northern mid-atlantic. The system affecting the area on Wednesday will be on its way out Wednesday night. At 00z Thursday, the surface low will be in the vicinity of new york city, with lingering showers possible as the main vort MAX pushes east through the northern mid-atlantic and adjacent new england. There is actually quite a bit of disagreement regarding the track of the vort max, with the gfs considerably farther north than most of the other deterministic models solutions. Generally excluded it for sensible weather Wednesday night, with the result being higher pops most of the night (though any rainfall would be light). There may be some isolated showers in the poconos that linger through Thursday, but generally have low to unmentionable pops after 12z Thursday for now. Nevertheless, a farther south track of the vort max would necessitate higher pops in this region through the day (and increased cloudiness). Not a lot of cold air upstream of the system, and the cold advection generally ceases after 12z Thursday, so MAX temperatures on Thursday look seasonable. Agreement among statistical guidance is below average (and remains so through the long term). Used a bias- corrected blend of raw operational guidance for temperatures Wednesday night through Saturday, given the rather variable output among guidance in general and the fairly changeable conditions during this period. Difficult forecast Thursday night, as models are all over the place with a surface low moving through the southeastern u.S. This low will be tied to a vort MAX in the mid-south on Thursday lifting northeastward Thursday night as an upstream positively-tilted trough digs into the mississippi valley. The track of the downstream vort max is highly sensitive to the speed of the upstream trough, with the GFS slower, allowing for a sharper turn to the northeast (and a closer track to our region). The ECMWF is stronger but much faster with the southern-stream portion of the mississippi valley trough, and this kicks its simulated surface low farther offshore. The ecmwf keeps any precipitation tied to the low in southern eastern portions of the CWA late Thursday night and Friday. Notably, the icon and cmc also have drier, more progressive, and somewhat shallower solutions. The GFS indicates rainfall of a quarter to three quarters of an inch would be possible across most of the area with a direct hit. The discrepancies in solutions necessitate keeping pops rather low (generally below 50 percent) across the area during this period (given the tip of the scales to a drier solution), but I think maintaining higher than climatology pops is warranted, especially near the coast. Implications on temperatures are profound, with a closer track of the system meaning cooler cloudier conditions. Large errors with temps sky cover winds are possible this period, owing to the array of solutions apparently feasible. |
Thereafter, the northern-stream vort MAX digs into the great lakes, new england, and southeast canada. An attendant cold front will move slowly through the northeast on Saturday. Think the northern cwa will be close enough to the vort MAX (spatiotemporally) to see some instability showers as surface heating allows for increased lapse rates during the day and enhanced convergence (via orographic effects in addition to the larger-scale front) provides the necessary source of lift to generate precipitation. Kept pops for most of the area Friday night and Saturday, with a diurnal maximum Saturday afternoon, particularly north of the i-76 corridor. Rainfall amounts should be light, and showers should diminish rapidly after sunset Saturday night. Again, all of this hinges on the proximity of the vort MAX to the area, so there is a decent chance of nothing precip-wise during this period. High pressure builds into the eastern u.S. Sunday through Tuesday with dry conditions through this period. Some cooling will occur Sunday given the origins of the high (and trough passage in the northeast), but a quick warmup will occur thereafter as midlevel ridging amplifies rapidly as it becomes anchored over the eastern half of the country. Temperatures should return to seasonal by Monday and likely much warmer than that the following days. Aviation 07z Tuesday through Saturday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Today...VFR conditions will begin the day across the TAF sites through this afternoon. MVFR CIGS lift from south to north late in the day. Rain will also be moving in from the south late in the afternoon. East winds 10-15 kt throughout, with 20-25 kt gusts at kacy kmiv kilg kphl. Tonight... MVFR ifr conditions in rain and fog. East winds 10-15 kt, diminishing to less than 10 kt late. Wednesday... Rain ends from south to north in the morning. Scattered showers persist through the afternoon. Flight categories improve to vfr late in the day. East winds less than 10 kt become lgt vrb in the middle of the day, then shift west in the afternoon. Outlook... Wednesday night: lingering local sub-vfr conditions possible in the evening with scattered showers, but improvement toVFR will gradually occur with time. West to northwest winds 5 to 15 kts. Low confidence. Thursday: probableVFR, but sct-bkn CIGS around 4000-5000 feet possible during the day. West to northwest winds 10 to 15 kts with occasional gusts 20-25 kts. Moderate confidence. Thursday night and Friday: increasing cloudiness, with a slight chance of showers, especially south of phl. Some potential for sub- vfr, but confidence is low as the track of the associated system is unclear at this time. Light and variable winds Thursday night are anticipated to become southerly on Friday. Friday night and Saturday: predominantlyVFR, with a slight chance of showers north of phl during the day. Winds changing from south to west or even northwest on Saturday, potentially with a few gusts during the afternoon. Moderate confidence. Marine Small craft advisory conditions develop this afternoon on all waters as a tight pressure gradient forms between departing high pressure over the western atlantic waters and low pressure approaching from the southeast. Winds gusting to 25-30 kt expected on all waters from late this afternoon through around midnight tonight, then winds diminish on de bay late. For the ocean, strong winds continue through tonight, and although winds diminish to 15-20 kt by Wednesday morning, seas remain elevated and above SCA levels through the day Wednesday. Vsby restrictions in moderate to locally heavy rain and fog expected from this evening through Wednesday morning, then scattered showers possible through the day Wednesday. Outlook... Wednesday night and Thursday: seas over the atlantic should remain above advisory criteria, but winds will likely be below criteria everywhere. Some lingering showers Wednesday night, but any visibility restrictions should improve Wednesday night. Thursday night and Friday: a chance for rain and visibility restrictions, though confidence is low. Winds seas likely below advisory criteria. Friday night and Saturday: winds seas below criteria, with fair weather on Saturday. Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... Small craft advisory from noon today to 6 am edt Thursday for anz450>455. Small craft advisory from noon today to 5 am edt Wednesday for anz430-431. Synopsis... Cms near term... Mps short term... Mps long term... Cms 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 |
| RDYD1 - 8551910 - Reedy Point, DE | 21 mi | 40 min | 52°F | 52°F | 1027.4 hPa | |||
| DRSD1 - Delaware Reserve, DE | 23 mi | 118 min | E 6 | 51°F | 1027 hPa | 46°F | ||
| DELD1 - 8551762 - Delaware City, DE | 23 mi | 40 min | SSE 5.1 G 8 | 52°F | 50°F | 1027.8 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 28 mi | 46 min | ESE 22 G 25 | 54°F | 1027.6 hPa | |||
| MRCP1 - 8540433 - Marcus Hook, PA | 31 mi | 46 min | 49°F | 52°F | 1027.9 hPa | |||
| CHCM2 - 8573927 - Chesapeake City, MD | 32 mi | 46 min | ENE 2.9 G 5.1 | 49°F | 54°F | 1027.9 hPa | ||
| CMAN4 - 8536110 - Cape May, NJ | 32 mi | 40 min | ESE 14 G 18 | 53°F | 51°F | 1027.2 hPa | ||
| PHBP1 - 8545240 - Philadelphia, PA | 39 mi | 40 min | 51°F | 49°F | 1028.1 hPa | |||
| BDSP1 | 42 mi | 40 min | 48°F | 52°F | 1028.5 hPa | |||
| JCRN4 - Jacques Cousteau Reserve, NJ | 42 mi | 58 min | ESE 7 | 52°F | 1029 hPa | 45°F | ||
| LWSD1 - 8557380 - Lewes, DE | 42 mi | 40 min | ESE 14 G 19 | 53°F | 51°F | 1027 hPa | ||
| ACYN4 - 8534720 - Atlantic City, NJ | 44 mi | 40 min | 51°F | 51°F | 1029.2 hPa |
Wind History for Ship John Shoal, NJ
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Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Millville, Millville Municipal Airport, NJ | 9 mi | 34 min | ESE 7 | 10.00 mi | Fair | 51°F | 43°F | 74% | 1027.9 hPa |
| Dover Air Force Base, DE | 21 mi | 92 min | E 7 | 10.00 mi | A Few Clouds | 52°F | 44°F | 77% | 1027.7 hPa |
Wind History from MIV (wind in knots)
| 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 | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | |
| Last 24hr | Calm | E | Calm | E | S | S G14 | G14 | S G14 | S | S | Calm | Calm | Calm | E | Calm | Calm | Calm | NE | Calm | Calm | ||||
| 1 day ago | NE | NE | E | Calm | W | SW G15 | S | SW | S | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | |||
| 2 days ago | NW | NW | NW | NW | N G17 | N G16 | N G14 | G15 | W | W | W | SW | SW | SW | Calm | Calm | Calm | Calm | Calm | Calm | W | Calm | Calm |
Tide / Current Tables for Tindalls Wharf, Cohansey River, Delaware Bay, New Jersey
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Tindalls Wharf Click for Map Tue -- 01:15 AM EDT 0.54 feet Low Tide Tue -- 03:21 AM EDT Moonset Tue -- 06:11 AM EDT Sunrise Tue -- 08:02 AM EDT 6.30 feet High Tide Tue -- 02:03 PM EDT 0.20 feet Low Tide Tue -- 02:10 PM EDT Moonrise Tue -- 07:47 PM EDT Sunset Tue -- 08:44 PM EDT 6.05 feet High 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 |
| 1.3 | 0.6 | 0.8 | 1.7 | 3.1 | 4.4 | 5.3 | 6 | 6.3 | 5.8 | 4.6 | 3.3 | 2.1 | 0.9 | 0.2 | 0.6 | 1.7 | 2.9 | 4.1 | 5.2 | 5.9 | 6 | 5.2 | 3.8 |
Tide / Current Tables for Newport Landing, Nantuxent Creek, Delaware Bay, New Jersey
EDIT (on/off) Help One Week of Data| Newport Landing Click for Map Tue -- 12:49 AM EDT 0.37 feet Low Tide Tue -- 03:21 AM EDT Moonset Tue -- 06:11 AM EDT Sunrise Tue -- 06:58 AM EDT 4.28 feet High Tide Tue -- 01:37 PM EDT 0.14 feet Low Tide Tue -- 02:10 PM EDT Moonrise Tue -- 07:40 PM EDT 4.11 feet High Tide Tue -- 07:47 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 |
| 0.6 | 0.4 | 0.8 | 1.8 | 2.8 | 3.5 | 4.1 | 4.3 | 4 | 3.3 | 2.4 | 1.7 | 1 | 0.3 | 0.2 | 0.8 | 1.7 | 2.6 | 3.4 | 4 | 4.1 | 3.6 | 2.7 | 1.9 |
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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (8,2,3,4)
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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. |