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Marine Weather and Tides
Version 3.4 |
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 5:37AM | Sunset 8:31PM | Thursday June 22, 2017 10:03 AM EDT (14:03 UTC) | Moonrise 3:29AM | Moonset 5:54PM | Illumination 3% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island- 732 Am Edt Thu Jun 22 2017 .small craft advisory in effect from late tonight through Friday afternoon... Today..S winds 5 to 10 kt. Waves 1 ft. Tonight..SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Fri..SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. Showers likely with a chance of tstms. Vsby 1 nm or less. Fri night..SW winds 15 kt with gusts to 25 kt. Waves 2 to 3 ft. A chance of showers and tstms. Sat..W winds 10 to 15 kt with gusts to 30 kt. Waves 2 to 3 ft. Showers likely with a chance of tstms. Sat night..NW winds 5 to 10 kt. Waves 1 ft. Sun..NW winds 5 to 10 kt...becoming sw. Waves 1 ft. Mon..W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. | ANZ500 732 Am Edt Thu Jun 22 2017 Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain offshore today. A slow moving cold front will affect the area from Friday into Saturday. High pressure will return on Sunday. Small craft advisory conditions are possible Friday night through Saturday. |
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 220917 aaa afdakq area forecast discussion... Updated national weather service wakefield va 517 am edt Thu jun 22 2017 Synopsis Bermuda high pressure already settling off the southeast coast and remain steadfast through at least Saturday. A surface cold front extends down from canada and is expected to approach the region Friday night and slowly cross the area on Saturday. Tropical moisture from the remnants of TS cindy will push in ahead of the front Friday and Saturday... Then exit the coast late in the weekend. Near term until 6 pm this evening Showers continue to generate north of the area in md where a stationary boundary resides. Expect these showers to remain north through the rest of the overnight hours. Meanwhile, the bermuda high is settling in off the southeast coast and will remain there through at least Saturday. A decent moisture plume from TS cindy is moving north from the fl panhandle twd the ohio valley as of 22 0730z. Already seeing mid to high level clouds continuously streaming in from the west with this feature. As weak high pressure slides north of the mason-dixon line today, a period of clearing is anticipated during the morning daylight hours. As shortwave energy from ts cindy tracks ene from the tn valley SE states this afternoon, clouds will begin to increase and thicken. Overall, today will be dry but warm muggy with highs reaching into the lower 90s most areas and dewpoints around 70f. Short term 6 pm this evening through Saturday night Strong high pressure remains in place over the desert SW tonight into Friday as the bermuda high to the east creates an omega blocking pattern... Effectively "trapping" TS cindy in the middle. Cindy's overall movement will be highly dependent on actual location placement of the ridges over the next few days, and even more so on a broad upper level trough currently stretched across the western 2 3rds of the us canadian border. This trough is expected to start digging into the us tonight, however the bigger question is how far can it dig before it runs into cindy and or gets blocked by the bermuda high. The good news is that 00z model runs are in fair agreement in bringing the base of the trough into the midwest Fri sat. As this occurs, surface low pressure located in eastern ontario on Friday will drag a cold front towards the mid atlantic region. The front should collect the remnants of TS cindy and slowly push through the local area Sat sat night... Exiting the NE nc coast Sunday morning. So what does this mean for the mid atlantic region? 1. Increasing chances for showers storms. Ample subtropical moisture (pwats around 2.00 inches) will continuously stream into the area from the gulf and the atlantic, and that's before the remnants of cindy arrive. Shortwave energy ejecting from cindy will bring the first round of showers storms to the region beginning Friday morning and persisting into the evening. Storm severity will be highly dependent whether or not clouds can break up during the day and allow for surface instability to occur. Otherwise, instability will be largely contingent on elevated instability from heating aloft. At this time, SPC has the northwestern half of the area in a marginal risk for isolated severe storms on Friday, however 850-700mb MUCAPE suggests that SE va NE nc would be more conducive to favorable strong thunderstorms. Overall, unidirectional shear and low-mid level dry air seen in atmospheric profiles suggests that line segments will be the primary storm type and that locally strong wind gusts will be possible under the strongest storm cores. Moderate to heavy rainfall rates within the subtropical environment anticipated. A break in precipitation is anticipated Friday night with the loss of daytime heating. This will be short-lived as the remnants of TS cindy arrive by Saturday morning just ahead of the cold front extending down from canada. More widespread showers storms should be anticipated as the front slowly tracks ese through the area... Exiting the NE nc coast by Sunday morning. Once again, storm mode will primarily be line segments with locally strong wind gusts possible... Especially across the southeastern half of the area during Saturday afternoon. Will highlight storm potential in the hwo for the entire forecast area. 2. Potential for localized flooding. Moderate to heavy rainfall rates over a short period of time could lead to localized flooding issues Friday and Saturday. In addition, training of storms on Friday could pose a slightly higher risk for flooding. For Saturday, warm rain processes with the remnants of TS cindy could further enhance and or exacerbate any flooding issues. Will highlight heavy rain and flooding potential in the hwo for the northwestern half of the area where storm total QPF amounts are roughly 0.50-1.00 inches. Once rain begins and we can observe upstream trends, QPF amounts will likely go up (locally higher possible in thunderstorms). |
3. Warm and muggy conditions. Tonight through Saturday... Highs in the upper 80s inland and mid 80s beaches. Lows in the lower 70s inland and mid 70s beaches. Dewpoints generally 70-75f will result in muggy conditions in the subtropical environment. Lows Saturday night in the mid 60s NW to lower 70s SE as drier, cooler air moves in behind the departing cold front. Long term Sunday through Wednesday Cold front stalls along the southeast coast Saturday night into Sunday as an upper level trough deepens over the great lakes region into the ohio valley. Deepest moisture pushes south of the local area Saturday night, but have kept low end chance pops across the far southeast forecast area. Frontal boundary expected to remain in the vicinity of northeast north carolina Sunday due to southwest flow aloft. Isolated to scattered diurnally driven showers and thunderstorms are possible across the southeast Sunday afternoon, nearest the boundary and better instability, but expect much of the forecast area to remain dry Sunday. Highs generally in the mid 80's. Thereafter, medium range guidance drops a stronger cold front Monday Monday night as additional energy dives down the back side of the upper trough. Guidance indicates the moisture and instability will be limited ahead of the front, but given the dynamics, have kept chance pops Monday afternoon. Cooler Monday, with highs ranging from the low to mid 80's. Trough axis swings across the region Tuesday as the front pushes offshore. Drying conditions expected Tuesday, but have kept slight chance to low end chance pops across the far southeast given model uncertainty with respect to the front. Highs generally around 80 Tuesday as 850mb temperatures level off at 10-12c (-1 standard deviation). Inland locations (and along the immediate coast) could only warm into the upper 70's. Dewpoints mix into the 50's, resulting in pleasant afternoon conditions. Dry conditions forecast Wednesday as the trough pushes offshore and heights build over the ohio valley. Surface high pressure settles over the mid-atlantic. Highs Wednesday generally in the low 80's. Aviation 09z Thursday through Monday Dry withVFR conditions today as weak high pressure slides just north of the area. Mid to high level clouds early this morning are expected to scatter out after 22 1200z with the high pressure nearby. However, clouds will begin to increase and thicken during this afternoon as shortwave energy from TS cindy tracks ene from the tn valley SE states. Subtropical moisture continues to stream into the region tonight through Saturday. Periods of showers and thunderstorms with moderate to heavy rainfall will be common Friday morning into Friday evening and again on Saturday as the remnants of TS cindy arrive just ahead of a cold front. Widespread MVFR conditions are likely with periods of ifr conditions in heavier rainfall stronger storms during this time. Breezy SW winds should be anticipated Friday afternoon with gusts to around 20kt, and Saturday morning early afternoon with gusts 25-30kt along SE of a line from avc-ric-nhk. The front exits the NE nc coast by Sunday morning with winds shifting to the NW and conditions improving toVFR as cooler, drier air arrives in its wake. Marine High pressure is situated off the southeast coast early this morning as TS cindy moves onshore along the NRN gulf coast. Additionally, a weak front is immediately north of the local marine area. High pressure is expected to prevail off the southeast coast through Saturday as the remnant low of cindy tracks through the tennessee valley Friday and Friday night, and then across the NRN mid-atlantic Saturday. A SW wind will average 10-15kt today through tonight and Friday, with 2-3ft seas and 1-2ft waves in the bay. A cold front will push into the ern great lakes Friday and this combined with the approach of the remnant low will result in a tightening pressure gradient and strengthening low- level jet Friday night through midday Saturday. A SW wind will increase to 15-25kt (gusts up to 30kt possible in the ocean bay), with 4-6ft seas possible out near 20nm mainly north of parramore island, with 3-4ft seas farther south. SCA conditions are increasingly likely Friday night into Saturday. A cold front pushes across the coast Saturday night, followed by a stronger cold front Monday night with high pressure building over the region through the middle of next week. Akq watches warnings advisories Md... None. Nc... None. Va... None. Marine... None. Synopsis... Bmd near term... Bmd short term... Bmd long term... Mam aviation... Bmd marine... Ajz |
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 | 46 min | WSW 6 G 6 | 77°F | 79°F | 1016.8 hPa | ||
| 44042 - Potomac, MD | 28 mi | 34 min | W 5.8 G 5.8 | 77°F | 1015.5 hPa | |||
| WAHV2 - 8631044 - Wachapreague, VA | 31 mi | 46 min | W 2.9 G 6 | 80°F | 78°F | 1016.9 hPa | ||
| 44089 | 32 mi | 34 min | 70°F | 2 ft | ||||
| LWTV2 - 8635750 - Lewisetta, VA | 35 mi | 46 min | WSW 4.1 G 4.1 | 79°F | 77°F | 1016.4 hPa | ||
| RPLV2 - 8632837 - Rappahannock Light, VA | 37 mi | 46 min | SW 6 G 7 | 1018 hPa | ||||
| PPTM2 - 8578240 - Piney Point, MD | 39 mi | 46 min | SW 1.9 G 1.9 | |||||
| COVM2 - 8577018 - Cove Point LNG Pier, MD | 39 mi | 46 min | SE 2.9 G 4.1 | 78°F | 1016.7 hPa | |||
| SLIM2 - 8577330 - Solomons Island, MD | 39 mi | 46 min | SSE 1.9 G 2.9 | 79°F | 76°F | |||
| CA2 - 8571892 - Cambridge, MD | 39 mi | 52 min | 82°F | 81°F | 1016.9 hPa | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 42 mi | 52 min | NNE 5.1 G 6 | 77°F | 61°F | 1016.8 hPa | ||
| OCSM2 | 44 mi | 184 min | 2 ft | |||||
| 44062 - Gooses Reef, MD | 48 mi | 34 min | SSW 1.9 G 3.9 | 78°F | 1017 hPa |
Wind History for Bishops Head, MD
(wind in knots) EDIT (on/off) Help| -12 PM | -12 PM | -12 PM | -12 PM | -12 PM | -12 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 | |
| Last 24hr | S | S | SW | SW | S G15 | SW G15 | SW | SW G17 | SW | SW | SW | SW G16 | SW G16 | W | W | W | W | W | ||||||
| 1 day ago | W | W | SW | SW | S | SW | S | S | S | S | SW | SW | SW G15 | SW G14 | SW G15 | SW | SW | SW G18 | SW G19 | SW | SW G19 | SW | SW G22 | SW |
| 2 days ago | S | S G24 | S | S | S | S | S G25 | S G26 | W G20 | W G13 | W | SW | SW G17 | SW | SW | W | W G16 | SW G21 | SW G23 | SW | SW G22 | SW | W | W |
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 | 70 min | W 6 | 10.00 mi | Mostly Cloudy | 80°F | 73°F | 79% | 1016.6 hPa |
Wind History from WAL (wind in knots)
| 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 | SW G18 | W G19 | W G16 | W | W | S | S | S | S | S | SW | S | SW | SW | SW | SW | SW | SW | W | SW | W | W | W | NW |
| 1 day ago | W | W | W | SW | SW | S | S | S | SW | S | SW | S | S | SW | SW | SW | S | SW | SW | SW | SW | SW | SW | SW G16 |
| 2 days ago | S G23 | S G26 | S G26 | S G25 | S G26 | S G27 | S G28 | S G31 | S G26 | S | SW | S | S | S | SW | SW | SW | SW | W | W | W | SW | W | W |
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 Thu -- 04:28 AM EDT Moonrise Thu -- 05:41 AM EDT Sunrise Thu -- 06:49 AM EDT -0.21 feet Low Tide Thu -- 12:25 PM EDT 2.11 feet High Tide Thu -- 06:51 PM EDT -0.31 feet Low Tide Thu -- 06:53 PM EDT Moonset Thu -- 08:29 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 |
| 2.7 | 2.6 | 2.2 | 1.6 | 0.9 | 0.3 | -0.1 | -0.2 | 0 | 0.6 | 1.2 | 1.8 | 2.1 | 2.1 | 1.8 | 1.4 | 0.8 | 0.2 | -0.2 | -0.3 | -0 | 0.5 | 1.3 | 2.1 |
Tide / Current Tables for Salisbury, Maryland (2 miles below) Current
EDIT (on/off) Help One Week of Data| Salisbury Click for Map Thu -- 02:30 AM EDT -0.00 knots Slack Thu -- 04:27 AM EDT Moonrise Thu -- 05:39 AM EDT Sunrise Thu -- 05:40 AM EDT -1.00 knots Max Ebb Thu -- 08:53 AM EDT 0.00 knots Slack Thu -- 11:16 AM EDT 0.64 knots Max Flood Thu -- 02:04 PM EDT -0.00 knots Slack Thu -- 05:33 PM EDT -1.18 knots Max Ebb Thu -- 06:53 PM EDT Moonset Thu -- 08:29 PM EDT Sunset Thu -- 08:43 PM EDT 0.00 knots Slack Thu -- 11:39 PM EDT 1.05 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 |
| 0.8 | 0.6 | 0.2 | -0.2 | -0.7 | -0.9 | -1 | -0.8 | -0.4 | 0 | 0.4 | 0.6 | 0.6 | 0.4 | 0 | -0.4 | -0.8 | -1.1 | -1.1 | -0.9 | -0.4 | 0.2 | 0.7 | 1 |
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 (10,2,3,4)
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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. |