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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 6:11AM | Sunset 7:52PM | Wednesday April 25, 2018 7:55 PM EDT (23:55 UTC) | Moonrise 2:22PM | Moonset 3:03AM | Illumination 81% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 732 Pm Edt Wed Apr 25 2018 .small craft advisory in effect through Thursday morning... Tonight..NW winds 10 to 15 kt. Gusts up to 20 kt late this evening and overnight. Waves 1 to 2 ft. Showers likely this evening. Patchy fog this evening with vsby 1 to 3 nm. Thu..NW winds 10 to 15 kt with gusts to 20 kt... Becoming sw 5 to 10 kt late. Waves 1 to 2 ft. Thu night..SE winds 5 to 10 kt. Waves 1 ft. Rain likely. Fri..SE winds 10 kt...becoming sw in the afternoon. Waves 1 to 2 ft. Rain. Fri night..SW winds 5 to 10 kt. Waves 1 ft. Sat..SW winds 5 to 10 kt. Waves 1 ft. Sat night..NW winds 5 to 10 kt. Waves 1 ft. Sun..NW winds 10 to 15 kt. Waves 1 to 2 ft. Mon..W winds 5 to 10 kt. Waves 1 ft. | ANZ500 732 Pm Edt Wed Apr 25 2018 Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure will move away from the waters tonight. High pressure will settle over the waters on Thursday. Low pressure will approach the waters Thursday night before passing through Friday. A cold front will pass through Saturday and high pressure will return for early next week. Small craft advisories will likely be needed on Friday and may be needed Sunday. |
7 Day Forecast for Marine Location Near Oxford, MD
Hourly EDIT Helplocation: 38.68, -76.17 debug
Area Discussion for - Baltimore, MD/Washington
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 klwx 251905 afdlwx area forecast discussion national weather service baltimore md washington dc 305 pm edt Wed apr 25 2018 Synopsis A cold front will cross the area tonight. High pressure will return Thursday. Low pressure will move across the area Friday. High pressure will build across the region Saturday night and hold through the middle of next week. Near term until 6 am Thursday morning Widespread clouds and a few showers remain over the area associated with southern stream upper low. This feature will phase with a northern stream trough moving across the eastern great lks tonight. Associated cold front will move across the area late this evening with NW flow developing and winds strengthening with clearing skies expected. Short term 6 am Thursday morning through Friday night Weak high pressure will build over the area thu. Next southern stream system will lift from the gulf states Thu afternoon and move across the area fri. Rain will overspread the area thu night into Fri morning. Rainfall amounts from a tenth of an inch across the far NW to up to an inch in st. Marys are expected. Long term Saturday through Wednesday A weak frontal boundary will move through the region early Saturday morning. The cold front will be on the drier side and will lead to a chance of scattered showers throughout our forecast area. The upper level trough driving the surface front will move over our region later in the day Saturday into Sunday. As the upper level trough shifts further eastward, a strong surface high pressure system will build into the region from the upper midwest and the great lakes region on Sunday. Temperatures looks to rise into the upper 60s to low 70s on Saturday along with some light winds. Sunday through early next week, a strong high pressure system will remain over the region. Skies are expected to remain mostly clear with temperatures starting below average for the end of april in the low to mid 60s and slowly rising into the 70s by Tuesday. Average temperatures for the beginning of may are normally in the low 70s which means that temperatures will likely reach average range or higher for this time of the year next week. Winds look to remain light and skies mostly clear through the long term. Aviation 19z Wednesday through Monday Cigs and vsbys gradually improving the rest of the day and this |
evening as NW flow strengthens. Clearing tonight. Rain moves in again Thu night and Fri morning with flight restrictions likely. A weak frontal passage early Saturday will bring increasing clouds and a chance for precipitation. Subvfr conditions will be possible if scattered showers move through the region on Saturday.VFR conditions are expected Sunday into Monday. Marine Winds will strengthen this evening with SCA conditions likely through late morning thu. Winds diminish Thu afternoon and evening with SCA conditions likely again Fri morning. A weak frontal boundary will move our region early on Saturday. This front will be mostly dry with a few showers possible. Winds be out of the northwest and could reach up into 10 to 15 kt with higher gust possible on Saturday. A small craft advisory will likely be need for the bay areas. A strong high pressure system building over the region will lead to lighter winds. Sub small craft advisory conditions are likely Sunday into early next week as of now. Tides coastal flooding Water anomalies remain around a foot above normal. Despite, nw flow developing, water models do not show any significant negative anomalies developing. It appears straits point could be at or just above minor coastal flooding threshold late this evening. Hence, coastal flood advisory issued. Lwx watches warnings advisories Dc... None. Md... Coastal flood advisory from 10 pm this evening to 2 am edt Thursday for mdz017. Va... None. Wv... None. Marine... Small craft advisory from 8 pm this evening to 11 am edt Thursday for anz530>543. Synopsis... Lfr near term... Lfr short term... Lfr long term... Jmg aviation... Lfr jmg marine... Lfr jmg tides coastal flooding... Lfr |
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 |
| CA2 - 8571892 - Cambridge, MD | 9 mi | 38 min | 62°F | 57°F | 1005.5 hPa | |||
| 44062 - Gooses Reef, MD | 16 mi | 26 min | WNW 3.9 G 3.9 | 57°F | 1005.4 hPa | |||
| TPLM2 - Thomas Point, MD | 21 mi | 56 min | NW 2.9 G 4.1 | 61°F | 54°F | 1005.4 hPa (+0.0) | 61°F | |
| COVM2 - 8577018 - Cove Point LNG Pier, MD | 22 mi | 38 min | NW 4.1 G 6 | 60°F | 1005.4 hPa | |||
| CPVM2 | 25 mi | 38 min | 61°F | 61°F | ||||
| APAM2 - 8575512 - Annapolis, MD | 27 mi | 38 min | 64°F | 1004.1 hPa | ||||
| BSLM2 - Chesapeake Bay, MD | 29 mi | 146 min | NW 1.9 | 61°F | 1005 hPa | 57°F | ||
| SLIM2 - 8577330 - Solomons Island, MD | 29 mi | 38 min | W 1.9 G 1.9 | 59°F | 53°F | 1004.7 hPa | ||
| BISM2 - 8571421 - Bishops Head, MD | 33 mi | 38 min | WNW 8.9 G 11 | 60°F | 61°F | 1005.2 hPa | ||
| TCBM2 - 8573364 - Tolchester Beach, MD | 37 mi | 38 min | N 6 G 8 | 60°F | 54°F | 1004.9 hPa | ||
| PPTM2 - 8578240 - Piney Point, MD | 42 mi | 38 min | NNW 8 G 8 | |||||
| FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 42 mi | 38 min | NW 14 G 15 | 64°F | 1004.6 hPa | |||
| FSNM2 | 42 mi | 56 min | NNW 14 G 16 | 65°F | 1004.5 hPa | |||
| BLTM2 - 8574680 - Baltimore, MD | 46 mi | 38 min | N 8 G 13 | 64°F | 56°F | 1004.5 hPa | ||
| 44042 - Potomac, MD | 46 mi | 26 min | WNW 5.8 G 7.8 | 58°F | 1006.5 hPa | |||
| WASD2 - 8594900 - Washington, DC | 47 mi | 38 min | NNW 2.9 G 6 | 63°F | 56°F | 1005.4 hPa | ||
| DRSD1 - Delaware Reserve, DE | 48 mi | 146 min | N 4.1 | 58°F | 1004 hPa | 58°F |
Wind History for Cambridge, MD
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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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 |
| Easton / Newman Field, MD | 10 mi | 66 min | NNW 8 | 10.00 mi | Mostly Cloudy | 64°F | 59°F | 83% | 1005.4 hPa |
| Cambridge-Dorchester Airport, MD | 12 mi | 81 min | WNW 5 | 10.00 mi | Overcast | 64°F | 59°F | 83% | 1004.1 hPa |
| Bay Bridge Field, MD | 22 mi | 81 min | N 0 | 5.00 mi | Light Rain Fog/Mist | 61°F | 59°F | 94% | 1004.4 hPa |
Wind History from ESN (wind in knots)
| 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 | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
| Last 24hr | E | E | E | E | SE G19 | SE G14 | SE G17 | SE | SE | SE | SE | E | E | E | NE | NE | Calm | N | NW | NW | W | NW | NW | NW |
| 1 day ago | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | E | SE G15 | SE | SE G16 | SE G18 | SE G18 | SE G21 | SE G18 | SE G19 | SE G18 | E | E G14 | |
| 2 days ago | SE | SE | E | SE | S | Calm | S | Calm | Calm | Calm | S | Calm | Calm | E | E | E | E | SE | S | S | S | SE G18 | SE G19 | SE G19 |
Tide / Current Tables for Oxford, Tred Avon River, Maryland
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Oxford Click for Map Wed -- 12:24 AM EDT 1.78 feet High Tide Wed -- 04:03 AM EDT Moonset Wed -- 06:14 AM EDT Sunrise Wed -- 07:13 AM EDT 0.35 feet Low Tide Wed -- 12:58 PM EDT 1.86 feet High Tide Wed -- 03:22 PM EDT Moonrise Wed -- 07:51 PM EDT Sunset Wed -- 07:56 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 |
| 1.8 | 1.7 | 1.6 | 1.3 | 1 | 0.7 | 0.5 | 0.4 | 0.4 | 0.7 | 1.1 | 1.5 | 1.8 | 1.9 | 1.8 | 1.6 | 1.3 | 1 | 0.7 | 0.5 | 0.4 | 0.5 | 0.9 | 1.3 |
Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
EDIT (on/off) Help One Week of Data| Cove Point (1.1 mi. NE of) Click for Map Wed -- 02:52 AM EDT -0.00 knots Slack Wed -- 04:03 AM EDT Moonset Wed -- 06:00 AM EDT -0.49 knots Max Ebb Wed -- 06:16 AM EDT Sunrise Wed -- 08:42 AM EDT 0.00 knots Slack Wed -- 11:40 AM EDT 0.55 knots Max Flood Wed -- 02:59 PM EDT -0.00 knots Slack Wed -- 03:23 PM EDT Moonrise Wed -- 06:25 PM EDT -0.63 knots Max Ebb Wed -- 07:51 PM EDT Sunset Wed -- 09:22 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 |
| 0.5 | 0.4 | 0.2 | -0 | -0.2 | -0.4 | -0.5 | -0.4 | -0.2 | 0.1 | 0.4 | 0.5 | 0.5 | 0.4 | 0.2 | -0 | -0.3 | -0.5 | -0.6 | -0.6 | -0.4 | -0.1 | 0.2 | 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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Baltimore, MD/Washington (19,4,5,8)
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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. |