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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 6:19AM | Sunset 7:52PM | Friday August 18, 2017 2:07 PM EDT (18:07 UTC) | Moonrise 1:50AM | Moonset 4:30PM | Illumination 13% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island- 133 Pm Edt Fri Aug 18 2017 .small craft advisory in effect through Saturday morning... This afternoon..S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A slight chance of showers and tstms. Vsby 1 nm or less. Tonight..S winds 10 to 15 kt...becoming W after midnight. Gusts up to 20 kt. Waves 2 ft. Showers with tstms likely. Vsby 1 nm or less. Sat..W winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 ft. Sat night..SW winds 5 kt. Waves less than 1 ft. Sun..NW winds around 5 kt. Waves 1 ft or less. Sun night..SE winds around 5 kt. Waves 1 ft or less. Mon..S winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. Tue..SW winds 10 to 15 kt. Waves 1 to 2 ft... Building to 2 to 3 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. | ANZ500 133 Pm Edt Fri Aug 18 2017 Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold will cross the waters tonight. A pressure trough will remain nearby for Saturday and Sunday while high pressure positions itself just to our north and west. The high will move offshore early next week. Small craft advisories may be needed Monday night and Tuesday. |
7 Day Forecast for Marine Location Near French-Rumbly, MD
Hourly EDIT Helplocation: 38.05, -75.8 debug
Area Discussion for - Wakefield, VA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kakq 181751 afdakq area forecast discussion national weather service wakefield va 151 pm edt Fri aug 18 2017 Synopsis A warm and humid air mass remains in place across the mid- atlantic states today on continued south flow. The next cold front will arrive late tonight and exit the region by Saturday morning. High pressure builds in for Saturday night through early next week. Near term until 8 pm this evening Initial showers that developed early this morning are dissipating quickly and the low stratus deck that has been in place for most areas except along coastal areas of the tidewater and NE nc is quickly dissipating too. As a result the sun will be coming out and temperatures will quickly jump into the upper 80s and continue up into the low 90s for most areas. Ahead of the cold front, seeing lots of clear sky across WRN va so warming should continue through the afternoon hours. With dewpoints in the mid 70s to around 80 will see heat indices from around 100 to 109 across the area. The highest values will be across SE along the ches bay from the middle peninsula southward into NE nc. So have issued a heat advisory for that area for the rest of the afternoon. Still looks like afternoon convection will form this afternoon across WRN va and then head ese across the region. The 12z nam is more enhanced with the convection so will need to monitor for possible severe as CAPE is now forecast to between 3000 - 4000 j kg. The winds aloft are not extremely strong and the direction shear is minimal. The mostly likely threat would be wind damage from downburst. Short term 8 pm this evening through Sunday The front slowly pushes southeast early Saturday, and models have once again trended a bit faster with the frontal passage, allowing for a quicker end to showers Sat morning. A strong shortwave trough sweeps across the mid-atlantic states Saturday night, but it remains north of the area and with the low level moisture gone, not anticipating much except some mid level clouds. By Sunday, high pressure will be over the region with dry and seasonable weather in place. For temperatures, will continue to see near normal weather with highs in the upper 80s to around 90 each day and lows in the low to mid 70s each night except for Saturday night when the drier air will allow temps to drop into the upper 60s to low 70s. Long term Sunday night through Thursday Sfc high pressure builds north of the area with stacked high pressure residing off the southeast coast through Mon night. A thermal trough develops in the lee of the appalachians for tue Tue night, and then a cold front is expected to track through the area on wed... Exiting the coast late Wed night. Conditions will become increasingly more humid with each passing day. Sfc features rather diffuse for mon, however seabreeze boundaries with the presence of ample moisture will keep a slight chance for showers storms in the forecast... |
primarily for the aftn early evening. Thunderstorm activity expected to become widely scattered Tue as convection develops invof lee trough. The frontal passage Wed wed night will provide a better focus for more organized thunderstorms to occur. Highs mon-wed generally upper 80s to lower 90s; low-mid 80s beaches. Lows sun-tue nights generally 70-75f. Lows Wed night mid-upper 60s NW to 70-75f se. Aviation 18z Friday through Wednesday Early morning stratus has burned off with CU developing across much of the region at 18z. Developing showers tstms SE of korf should move offshore before 1830z, but have included vcsh there in the 18z-19z time frame. Radar suggests tstms SE of kecg will remain far enough SE of the terminal to not be an issue, but will continue to closely monitor. A cold front approaching the region this afternoon evening will initiate shower TSTM development W NW of the area by 21z, then moving E ese into the region through 03z. The potential for MVFR ifr conditions exists as tstms will produce heavy rainfall, but uncertainty of exact timing precludes adding too much specificity to the 18z tafs. Have added vcts to kphf korf since hi-res model guidance suggests decent TSTM potential both terminals after 01z. Expect precipitation to wane after 08z, leaving generallyVFR conditions for the remainder of the taf period. Outlook:VFR conditions returns later Saturday through the weekend as high pressure builds back into the region. Some early morning fog possible both Sunday and Monday mornings. Marine Latest sfc analysis shows weak high pressure offshore with a cold front over the oh valley. This front will track east towards the mid atlc today, with southerly flow increasing ahead of the front as the pressure gradient increases. By this aftn eveng before the fropa conditions will be close to SCA criteria over bay due to ~15 kt sustained winds and northern cstl wtrs due to 4 ft seas. Not confident enough that SCA conditions will occur to issue headlines attm. The cold front drops into the wtrs tonight, with shras tstms psbl and winds waves seas decreasing thereafter. For sat, with the front weakening in the vicinity, expect winds AOB 10 kt by the aftn with 1-2 ft waves over the bay and 2-3 ft seas over cstl wtrs. Similar conditions into Sun with little change in the overall pattern. Sub-sca conditions will continue into early next week with weak sfc high pressure in the area. Akq watches warnings advisories Md... None. Nc... Heat advisory until 8 pm edt this evening for ncz013>017- 030>032. Va... Heat advisory until 8 pm edt this evening for vaz084-089-090- 093-095>098-523>525. Marine... None. Synopsis... Mam near term... Ess mam short term... Ess mam long term... Bmd aviation... Mam wrs marine... Mas |
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 |
| BISM2 - 8571421 - Bishops Head, MD | 17 mi | 50 min | S 13 G 14 | 82°F | 82°F | 1011.4 hPa | ||
| 44042 - Potomac, MD | 28 mi | 38 min | SSW 3.9 G 5.8 | 84°F | 1010.1 hPa | |||
| WAHV2 - 8631044 - Wachapreague, VA | 31 mi | 50 min | S 13 G 16 | 85°F | 83°F | 1011.6 hPa | ||
| 44089 | 32 mi | 68 min | 78°F | 3 ft | ||||
| LWTV2 - 8635750 - Lewisetta, VA | 35 mi | 50 min | SW 8 G 12 | 86°F | 84°F | 1010.7 hPa | ||
| RPLV2 - 8632837 - Rappahannock Light, VA | 37 mi | 50 min | S 11 G 12 | 1012.2 hPa | ||||
| PPTM2 - 8578240 - Piney Point, MD | 39 mi | 50 min | SSW 4.1 G 5.1 | |||||
| SLIM2 - 8577330 - Solomons Island, MD | 39 mi | 50 min | SSW 8 G 9.9 | 85°F | 82°F | |||
| COVM2 - 8577018 - Cove Point LNG Pier, MD | 39 mi | 50 min | S 13 G 15 | 82°F | 1011.3 hPa | |||
| CA2 - 8571892 - Cambridge, MD | 39 mi | 50 min | 86°F | 81°F | 1011.7 hPa | |||
| 44058 - Stingray Point, VA | 41 mi | 38 min | SW 5.8 G 9.7 | 85°F | 1011.7 hPa | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 42 mi | 50 min | SSW 14 G 17 | 79°F | 80°F | 1012.1 hPa | ||
| 44062 - Gooses Reef, MD | 48 mi | 38 min | SSE 9.7 G 12 | 82°F | 1011.1 hPa |
Wind History for Bishops Head, MD
(wind in knots) EDIT (on/off) Help| 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 | 12 PM | 1 PM | 2 PM | |
| Last 24hr | SE | S G15 | S | SE | SE | SE G16 | SE G18 | S | S | S | S G17 | S | S | S G15 | S | S | S G17 | S G17 | SW | S | S | S | S | S |
| 1 day ago | SW | SW | SW | SW | S | S | S | S | SE | S | S | S | SW | SW | SW | SW | W | NW | W | S | SE | SE | SE | SE |
| 2 days ago | SW | NW | NE | W | -- | SE | SW | NW | N | N | N | NW | NW G5 | N | W | NW G8 | N G9 | N | N G10 | NE | NE | SW | SW | SW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wallops Flight Facility Airport, VA | 19 mi | 74 min | S 12 G 18 | 10.00 mi | Partly Cloudy | 86°F | 81°F | 85% | 1011.7 hPa |
Wind History from WAL (wind in knots)
| 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 | 12 PM | 1 PM | 2 PM | |
| Last 24hr | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S G18 | S |
| 1 day ago | SE | S | S | S | S | S | S | S | SW | SW | SW | W | Calm | Calm | Calm | Calm | SE | S | S | W | NW | E | E | SE |
| 2 days ago | Calm | S | SE | Calm | Calm | SE | Calm | Calm | Calm | NW | Calm | Calm | Calm | N | NW | NW | NW | N | N | N | NW | NE |
Tide / Current Tables for Long Point, Big Annemessex River, Chesapeake Bay, Maryland
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Long Point Click for Map Fri -- 02:50 AM EDT Moonrise Fri -- 05:22 AM EDT 0.17 feet Low Tide Fri -- 06:21 AM EDT Sunrise Fri -- 10:57 AM EDT 2.10 feet High Tide Fri -- 05:25 PM EDT 0.06 feet Low Tide Fri -- 05:30 PM EDT Moonset Fri -- 07:52 PM EDT Sunset Fri -- 11:33 PM EDT 2.67 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 |
| 2.4 | 2 | 1.4 | 0.9 | 0.4 | 0.2 | 0.2 | 0.5 | 1.1 | 1.6 | 2 | 2.1 | 2 | 1.7 | 1.3 | 0.8 | 0.3 | 0.1 | 0.1 | 0.5 | 1 | 1.7 | 2.3 | 2.6 |
Tide / Current Tables for Salisbury, Maryland (2 miles below) Current
EDIT (on/off) Help One Week of Data| Salisbury Click for Map Fri -- 01:01 AM EDT -0.00 knots Slack Fri -- 02:48 AM EDT Moonrise Fri -- 04:15 AM EDT -0.83 knots Max Ebb Fri -- 06:19 AM EDT Sunrise Fri -- 07:28 AM EDT 0.00 knots Slack Fri -- 09:59 AM EDT 0.53 knots Max Flood Fri -- 12:41 PM EDT -0.00 knots Slack Fri -- 04:11 PM EDT -1.00 knots Max Ebb Fri -- 05:30 PM EDT Moonset Fri -- 07:26 PM EDT 0.00 knots Slack Fri -- 07:52 PM EDT Sunset Fri -- 10:24 PM EDT 0.80 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 |
| 0.3 | 0 | -0.4 | -0.7 | -0.8 | -0.8 | -0.5 | -0.2 | 0.2 | 0.4 | 0.5 | 0.4 | 0.2 | -0.1 | -0.5 | -0.8 | -1 | -0.9 | -0.6 | -0.2 | 0.2 | 0.6 | 0.8 | 0.8 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Mid-Atlantic EDIT  |
Wind Forecast for Wakefield, VA (14,3,4,5)
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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. |