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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:17AM | Sunset 7:49PM | Wednesday August 21, 2019 11:33 AM EDT (15:33 UTC) | Moonrise 11:06PM | Moonset 11:49AM | Illumination 65% |  |
ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 932 Am Edt Wed Aug 21 2019
.small craft advisory in effect from 4 pm edt this afternoon through this evening...
Rest of today..S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 ft or less. A slight chance of showers and tstms late this morning, then a chance of showers and tstms this afternoon.
Tonight..SW winds 10 to 15 kt. Gusts up to 25 kt. Waves 2 ft or less. A chance of showers and tstms until early morning.
Thu..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms in the afternoon.
Thu night..SW winds around 5 kt, becoming nw after midnight. Waves 2 ft or less. A chance of tstms early in the evening. A chance of showers.
Fri..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers. A chance of tstms in the afternoon.
Fri night..N winds 5 to 10 kt. Waves 2 ft or less, then around 3 ft after midnight. A chance of tstms in the evening. A chance of showers.
Sat..NE winds 5 to 10 kt. Waves around 3 ft in the morning, then 2 ft or less. A chance of showers in the morning.
Sat night..NE winds 5 to 10 kt. Waves 2 ft or less.
Sun..E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 3 ft.
Sun night..E winds around 15 kt with gusts up to 20 kt. Waves around 3 ft. A chance of showers after midnight. Winds and waves higher in and near tstms.
.small craft advisory in effect from 4 pm edt this afternoon through this evening...
Rest of today..S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 ft or less. A slight chance of showers and tstms late this morning, then a chance of showers and tstms this afternoon.
Tonight..SW winds 10 to 15 kt. Gusts up to 25 kt. Waves 2 ft or less. A chance of showers and tstms until early morning.
Thu..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms in the afternoon.
Thu night..SW winds around 5 kt, becoming nw after midnight. Waves 2 ft or less. A chance of tstms early in the evening. A chance of showers.
Fri..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers. A chance of tstms in the afternoon.
Fri night..N winds 5 to 10 kt. Waves 2 ft or less, then around 3 ft after midnight. A chance of tstms in the evening. A chance of showers.
Sat..NE winds 5 to 10 kt. Waves around 3 ft in the morning, then 2 ft or less. A chance of showers in the morning.
Sat night..NE winds 5 to 10 kt. Waves 2 ft or less.
Sun..E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 3 ft.
Sun night..E winds around 15 kt with gusts up to 20 kt. Waves around 3 ft. A chance of showers after midnight. Winds and waves higher in and near tstms.
ANZ400 932 Am Edt Wed Aug 21 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. As a warm front lifts north of the mid-atlantic today, a surface lee trough will develop east of the appalachians. A cold front will slowly approach the region Thursday, gradually shifting south of the area Friday and Saturday. High pressure is anticipated to build into the northeast and adjacent western atlantic this weekend. The next weather system may impact the area early next week.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. As a warm front lifts north of the mid-atlantic today, a surface lee trough will develop east of the appalachians. A cold front will slowly approach the region Thursday, gradually shifting south of the area Friday and Saturday. High pressure is anticipated to build into the northeast and adjacent western atlantic this weekend. The next weather system may impact the area early next week.
7 Day Forecast for Marine Location Near Wildwood Crest , NJ
Hourly EDIT Helplocation: 38.98, -74.86 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 211329 afdphi area forecast discussion national weather service mount holly nj 929 am edt Wed aug 21 2019 Synopsis As a warm front lifts north of the mid-atlantic today, a surface lee trough will develop east of the appalachians. A cold front will slowly approach the region Thursday, gradually shifting south of the area Friday and Saturday. High pressure is anticipated to build into the northeast and adjacent western atlantic this weekend. The next weather system may impact the area early next week. Near term until 6 pm this evening For the morning update, I adjusted the cloud cover for the current hour and next few hours. The vis Sat pix does show a good amount of Sun south and east of i95. In addition, I also trimmed back pops across the same area. The next round of showers across central pa is expected to track across northeast pa and northern nj missing our southeastern zones. Previous discussion... several rounds of showers and thunderstorms are possible through today across the area. The first is occurring early this morning as a frontal boundary is drifting northward across the area and a short wave vorticity impulse lifts across the area as well. Most shower and thunderstorm activity has been very sporadic in nature and this will continue through the early to mid morning hours. The second, and more organized round of showers and thunderstorms is possible by late this morning into this afternoon as another short wave vorticity impulse move eastward across the area. This activity is mostly expected to affect northeast pennsylvania and northern new jersey. The next round of showers and thunderstorms, and the one with the more potential for strong to severe storms, will come later this afternoon. A lee-side thermal trough will drift eastward from central pennsylvania and central maryland this afternoon, while yet another short wave vorticity impulse will slide across the area as well. This surface trough will be the focus for showers and thunderstorms to develop, and the short wave will enhance the lift across the area. CAPE values build to 2,000-3,000 j kg, while shear will increase to 25-35 knots. The best combination of shear and instability is across the northern half of the area where SPC has a slight risk for severe weather, but there will be enough of both to increase the risk of strong to severe thunderstorms today across the entire area. Damaging winds will be the main threat across the area, although there will continue to be a threat for hail with a fair amount of cape above the freezing level. Another concern today will be the potential for heavy rainfall. Pw values remain 1.75-2.00 inches, so any thunderstorm will be efficient rain producers. There should be decent storm motion for most storms, but if any training of storms occurs, this could lead to higher rain amounts and localized areas of flood could occur. Today will be another hot and humid day across the area. The heat advisory remains in effect for the urban corridor as heat index values are forecast around 100 degrees. The heat advisory was also expanded into portions of central and eastern new jersey where heat index criteria is 100 and the heat index is forecast to reach 100 degrees. Short term 6 pm this evening through 6 am Thursday Showers and thunderstorms will be ongoing across the area as the surface trough continues to slowly move eastward, while the short wave vorticity impulse aloft slides to the east. Once the short wave passes eastward through the evening, showers and thunderstorms will continue to dissipate through the evening and overnight. The surface trough will likely stall out across the area during the overnight, but once the short wave aloft passes east and the showers have dissipated, the remainder of the overnight is expected to be dry. There will be the potential for some areas of patchy fog later in the overnight, especially where rainfall occurs during the afternoon and evening hours. The most likely areas are northeastern pennsylvania and northern new jersey. Long term Thursday through Tuesday There is large uncertainty with the forecast Thursday onward, as models are struggling mightily with the southward progress of the front approaching the area to start the period and the overall pattern that takes over starting this weekend. A cold front will be in the process of approaching crossing the area Thursday and Thursday night, but it will struggle owing to boundary-parallel flow aloft. In the midlevels, a potent shortwave trough will be shifting eastward through quebec, with a kicker vort MAX digging southeastward through the midwest great lakes. Models continue to be all over the place with the progress of this kicker system, with the 00z ecmwf clearly the slowest. The latest run mirrors a few of its past runs, keeping the slow-moving vortex in new england through much of the weekend. The 00z GFS is generally faster, but notably does feature yet another perturbation digging southeastward through new england on Saturday. Nevertheless, it is much faster with the first kicker, which continues its insistence of shunting the cold front to the south of the area on Friday. The 00z cmc looks fairly similar to the gfs, in general, albeit just a tad slower with the cold-frontal passage. Model consensus, including the ensembles, continues a slowing trend with the front, with more of the guidance suggesting potential for precipitation lasting through Friday night. As such, bumped pops a little bit more through this time frame (generally speaking), though there are some details worth noting... 1. There will likely be a lull in precipitation Thursday morning, perhaps lasting through much of the day, as transient shortwave ridging occurs upstream of the shortwave trough moving through the area today. Additionally, this will likely warm the profile just above the boundary layer, which may preclude more widespread diurnal convection during the afternoon. 2. There are increasing indications of a low-amplitude vort max moving through the region Thursday night, which may coincide with the highest precipitation chances across the CWA while the front is in our proximity. Did not necessarily increase pops from the previous forecast, but did broaden higher chance pops into most of the area for this period. Though timing is not ideal for maximum instability, the pre-frontal warm sector will maintain sufficient potential instability for convection overnight. 3. Though smaller-scale details differ considerably by Friday evening, it is possible another low-amplitude vort MAX travels along the front to produce another maximum in precipitation during this time frame. By this point, best chances would be in delmarva and far southern new jersey, so have maintained pops here through Saturday morning. With the front slow to cross the area on Thursday, temperatures |
and dew points will remain high. Could see another day of advisory-level heat indices in the urban corridor and southward eastward. For now, held off on extending the current advisory given lingering uncertainties with frontal placement and potential for convection. Temperatures are still expected to be much cooler on Friday as the front sags southward. Presumably, high pressure will sufficiently build into the region this weekend for the area to dry out. However, the front remains in close enough proximity to linger some pops most of the day in the far southern cwa. Another caveat is the closed- off appearance of the upper low in the 00z ecmwf. Should this occur and be in close enough proximity to the area, may see some instability showers develop. At this point, this seems like a low-probability outcome, so have made no mention of pops for this scenario. However, will need to watch this potential in later updates. Large run-to-run consistency issues develop in the operational models for next week. There is some signal for a low to develop to our south, originating from weak troughing in the gulf coast region this weekend. With weak steering flow and an evolution primarily driven by convection, it is no wonder models are so divergent with the evolution of this feature. More consistent is the development of large-scale troughing in the northern u.S. Next week, which appears to approach the northeast by midweek. Combined with persistent antecedent onshore flow from the surface high to our northeast, chances for precipitation appear to increase early next week, though confidence on the details is quite low at this point. Fairly confident temperatures will remain seasonable beyond the weekend for quite some time, which is most welcome as far as I am concerned. Aviation 13z Wednesday through Sunday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Today... Most places are starting offVFR, but a period of MVFR visibilities and ceilings will be possible through the morning hours. All areas are expected to return toVFR by late morning and the afternoon. There is a chance of showers and thunderstorms across the area through the day today. The most likely time period is later this afternoon into this evening. Any showers or thunderstorms will likely lead to lower ceilings and or visibility. Winds will be light and variable this morning, before shifting to the south to southwest later this morning and into this afternoon. Winds may gust 15-20 knots at times for some areas as well this afternoon. Tonight... Showers and thunderstorms will be possible this evening, before diminishing in coverage overnight. Lower conditions will be possible with any shower or thunderstorm, but mostlyVFR conditions are expected for most of the night. Areas of patchy fog may develop overnight, especially where rainfall occurs during the afternoon and evening hours. The most likely areas are northeastern pennsylvania and northern new jersey. Winds will be mostly southwest 5-10 knots, before becoming light and variable for many locations overnight. Outlook... Thursday... MainlyVFR, though brief restrictions may occur with showers storms. West to southwest winds up to 10 kts. Thursday night and Friday... Very low-confidence forecast. Restrictions possible at times, with chances of showers storms, especially on Thursday night. Chances become confined to south of phl with time. Winds transitioning to north or northwest up to 10 kts or so. Friday night and Saturday... GenerallyVFR. Cannot rule out showers storms south of phl, but chances appear fairly low. North to northeast winds up to 10 kts, possibly stronger near the coast. Saturday night and Sunday... MainlyVFR with east to northeast winds gradually increasing to 10 to 15 kts on Sunday, possibly stronger near the coast. Marine A small craft advisory was issued for this afternoon into this evening for the atlantic coastal waters, as well as lower delaware bay. Winds are expected to increase to gusts of 25 knots or greater and seas are expected to build to 5 feet on the ocean as well. The advisory starts at 2 pm on the ocean, and 4 pm on the delaware bay, and ends 10 pm on the bay, and 4 am on the ocean. Outlook... Thursday through Saturday... Sub-advisory winds seas expected. Chances for showers storms through the period, but especially Thursday night and again Friday night. Saturday night and Sunday... Sub-advisory winds seas and mostly fair weather expected. Rip currents... with winds increasing to 15-20 knots on the ocean, and seas building to 4-5 feet with a period of 6-8 seconds, the rip current risk will be moderate for new jersey, but remain low for delaware. Phi watches warnings advisories Pa... Heat advisory until 8 pm edt this evening for paz070-071-102- 104-106. Nj... Heat advisory until 8 pm edt this evening for njz010-012-013- 020-027. Heat advisory until 8 pm edt this evening for njz015-017>019. De... Heat advisory until 8 pm edt this evening for dez001. Md... None. Marine... Small craft advisory from 2 pm this afternoon to 2 am edt Thursday for anz450>455. Small craft advisory from 4 pm this afternoon to 10 pm edt this evening for anz431. Synopsis... Cms near term... Kruzdlo robertson short term... Robertson long term... Cms aviation... Cms robertson marine... Cms 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 | 5 mi | 63 min | SSW 7 G 11 | 80°F | 77°F | 1015 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 13 mi | 63 min | 1015.7 hPa | |||||
| LWSD1 - 8557380 - Lewes, DE | 19 mi | 63 min | SW 11 G 14 | 85°F | 74°F | 1015.3 hPa | ||
| DRSD1 - Delaware Reserve, DE | 31 mi | 123 min | SSW 6 | 83°F | 1015 hPa | 75°F | ||
| ACYN4 - 8534720 - Atlantic City, NJ | 35 mi | 63 min | 78°F | 77°F | 1015.9 hPa | |||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 35 mi | 63 min | SSW 8.9 G 9.9 | 82°F | 84°F | 1015.9 hPa | ||
| 44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ | 37 mi | 43 min | SSW 16 G 18 | 80°F | 80°F | 3 ft | 1015.7 hPa (-0.6) | |
| JCRN4 - Jacques Cousteau Reserve, NJ | 44 mi | 63 min | SSW 8.9 | 59°F | 1015 hPa | 53°F | ||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 47 mi | 63 min | WSW 9.9 G 12 | 81°F | 74°F | 1016.9 hPa |
Wind History for Cape May, NJ
(wind in knots) EDIT (on/off) Help| 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 | 8 AM | 9 AM | 10 AM | |
| Last 24hr | NE G12 | E G15 | E G13 | E | E G8 | E | E | E | E G8 | E | SE | SE | SE G7 | SW G9 | W G8 | W | SE | -- | SE | SE | SE | SE | S | S G10 |
| 1 day ago | S G10 | SE G14 | S G14 | S G13 | S G13 | S G17 | S G20 | S G10 | S G10 | SE | SE G8 | S G10 | SW | SW | SW | -- | E | -- | S | NE | NE | NE | E | NE |
| 2 days ago | S | SE | S G12 | S G12 | S G15 | S G12 | SE G13 | SE G13 | SE | SE | SE | SE | SE | S | S | S | S | SW | SW | S | S | S | SE G10 | SE |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wildwood, Cape May County Airport, NJ | 3 mi | 37 min | SSW 10 | 10.00 mi | Fair | 86°F | 75°F | 70% | 1015.6 hPa |
Link to 5 minute data for KWWD
Wind History from WWD (wind in knots)
| 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 | 8 AM | 9 AM | 10 AM | 11 AM | |
| Last 24hr | E | E | E | E | E | E | E | E | S | Calm | Calm | Calm | Calm | S | S | SW | S | |||||||
| 1 day ago | S | S | S | S | S | SW | SW | S | S | SW | S | Calm | S | N | NE | E | E | |||||||
| 2 days ago | SE | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | S | S | S |
Tide / Current Tables for Swain Channel, Taylor Sound, New Jersey
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSwain Channel
Click for Map
Wed -- 12:26 AM EDT 4.31 feet High Tide
Wed -- 06:09 AM EDT 0.52 feet Low Tide
Wed -- 06:18 AM EDT Sunrise
Wed -- 11:49 AM EDT Moonset
Wed -- 12:51 PM EDT 4.41 feet High Tide
Wed -- 06:39 PM EDT 1.03 feet Low Tide
Wed -- 07:46 PM EDT Sunset
Wed -- 11:05 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:26 AM EDT 4.31 feet High Tide
Wed -- 06:09 AM EDT 0.52 feet Low Tide
Wed -- 06:18 AM EDT Sunrise
Wed -- 11:49 AM EDT Moonset
Wed -- 12:51 PM EDT 4.41 feet High Tide
Wed -- 06:39 PM EDT 1.03 feet Low Tide
Wed -- 07:46 PM EDT Sunset
Wed -- 11:05 PM EDT Moonrise
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 |
| 4.3 | 4.2 | 3.7 | 2.7 | 1.6 | 0.8 | 0.5 | 0.7 | 1.3 | 2.2 | 3.2 | 3.9 | 4.3 | 4.4 | 4.1 | 3.3 | 2.3 | 1.5 | 1.1 | 1 | 1.3 | 2 | 2.8 | 3.5 |
Tide / Current Tables for Delaware Bay Entrance, Delaware Current
EDIT (on/off) Help One Week of DataDelaware Bay Entrance
Click for Map
Wed -- 02:08 AM EDT -0.00 knots Slack
Wed -- 05:24 AM EDT -1.13 knots Max Ebb
Wed -- 06:19 AM EDT Sunrise
Wed -- 08:16 AM EDT 0.00 knots Slack
Wed -- 11:23 AM EDT 1.19 knots Max Flood
Wed -- 11:49 AM EDT Moonset
Wed -- 02:34 PM EDT -0.00 knots Slack
Wed -- 05:57 PM EDT -1.04 knots Max Ebb
Wed -- 07:46 PM EDT Sunset
Wed -- 08:50 PM EDT 0.00 knots Slack
Wed -- 11:06 PM EDT Moonrise
Wed -- 11:54 PM EDT 1.03 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:08 AM EDT -0.00 knots Slack
Wed -- 05:24 AM EDT -1.13 knots Max Ebb
Wed -- 06:19 AM EDT Sunrise
Wed -- 08:16 AM EDT 0.00 knots Slack
Wed -- 11:23 AM EDT 1.19 knots Max Flood
Wed -- 11:49 AM EDT Moonset
Wed -- 02:34 PM EDT -0.00 knots Slack
Wed -- 05:57 PM EDT -1.04 knots Max Ebb
Wed -- 07:46 PM EDT Sunset
Wed -- 08:50 PM EDT 0.00 knots Slack
Wed -- 11:06 PM EDT Moonrise
Wed -- 11:54 PM EDT 1.03 knots Max Flood
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 | 0.6 | 0.1 | -0.5 | -0.9 | -1.1 | -1.1 | -0.8 | -0.2 | 0.5 | 0.9 | 1.2 | 1.1 | 0.8 | 0.3 | -0.2 | -0.7 | -1 | -1 | -0.9 | -0.5 | 0.1 | 0.6 | 0.9 |
Weather Map and Satellite Images
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GOES Local Image of 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 (11,2,3,4)
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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. |