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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 6:20AM | Sunset 7:52PM | Saturday April 21, 2018 11:42 AM EDT (15:42 UTC) | Moonrise 10:03AM | Moonset 12:00AM | Illumination 37% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ537 Tidal Potomac From Cobb Island To Smith Point- 1032 Am Edt Sat Apr 21 2018 Rest of today..N winds 10 kt...becoming se late. Waves 1 ft. Tonight..SW winds 5 to 10 kt. Waves 1 ft. Sun..E winds 5 to 10 kt. Waves 1 ft. Sun night..SE winds 5 to 10 kt. Waves 1 ft. Mon..SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Mon night..E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of rain. Tue..E winds 10 to 15 kt. Waves 2 to 3 ft. Rain. Wed..E winds 5 to 10 kt...becoming nw. Waves 1 to 2 ft. Rain in the morning, then showers likely through the night. A chance of showers after midnight. | ANZ500 1032 Am Edt Sat Apr 21 2018 Synopsis for the tidal potomac and md portion of the chesapeake bay.. An expansive area of high pressure will build eastward from the great lakes region this weekend, moving off the new england coast early next week. An area of low pressure over the deep south will approach the region mid week. Small craft advisories may be needed late Monday into Tuesday. |
7 Day Forecast for Marine Location Near Tall Timbers, MD
Hourly EDIT Helplocation: 38.15, -76.63 debug
Area Discussion for - Wakefield, VA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kakq 211400 afdakq area forecast discussion national weather service wakefield va 1000 am edt Sat apr 21 2018 Synopsis Cool and dry conditions continue through the weekend as high pressure is centered from the great lakes to the mid atlantic region. Low pressure will track from the gulf coast states northeast up along the east coast late Monday through Wednesday. Near term through tonight As of 14z Saturday... latest msas shows ~1032 mb broad high pressure centered over the great lakes region. The high continues to extend down into the mid atlc region, leading to another dry day with a sunny sky. Highs in the low-mid 60s most areas except near the coast (mid-upr 50s) where sea breezes may develop this aftn. For tonight... The fa remains under the influence of sfc high pressure centered off to the north. Some increasing moisture in the wnw flow aloft will allow for increasing clouds and temps to only fall into the low mid 40s. Short term Sunday through Monday night As of 350 am edt Saturday... high pressure slides offshore Sunday into Sunday night. This will bring gradually increasing clouds Sunday afternoon and night. Highs Sunday range through the 60s. N or NE winds 10 kt or less Sunday morning veer around to the SE Sunday night, bringing gradually moderating temps. By Monday morning, next weather system currently over the desert southwest will have pushed east toward the gulf coast region. Models are in general agreement that the trough will gradually dampen, with the closed low opening up as the upper trough traverses the southern tier of states over the weekend, with a weak inverted trough developing over the southeast into Monday morning. Given the antecedent dry conditions and the slow evolution of this system, have kept Monday dry across the local area, despite increase in cloudiness. May be a few light rain showers possible across the i-85 corridor, but will hold pops at slight chc or less. More clouds than Sun over much of the area will keep temps in the mid 60s. Rain chances steadily increase Monday night across the piedmont, with precip spreading nne into the area into Tuesday morning. Lows mainly in the upper 40s in the piedmont to low 50s across SE coastal plain. Long term Tuesday through Friday As of 410 pm edt Friday... rain will move into the area from ssw to nne during the day on Tuesday as the upper wave and associated sfc low pres push E ne. 20 12z gfs ECMWF cmc are in good agreement that the area of light to moderate rain will cover the entire CWA by late afternoon on Tuesday and last through around 12z wed. Given the agreement between the most recent suite of guidance, have increased pops to 60-70% for the entire CWA tue-early wed. Due to the rain, high temperatures will be be in the low 60s for the bulk of the CWA on Tuesday. After the sfc low tracks through eastern portions of the CWA Wed am, the main area of rain will exit the region. A few showers will still be possible during the day, but temperatures should warm to near 70 on Wednesday |
if the rain exits early enough (this looks more likely in southern parts of the cwa). 12z GFS cmc track another sfc low weak cold front through the area Thursday-Friday am, but ECMWF does not have a rainy solution. Thus, have kept pops at or below 40%. Highs around 70 lows between 50-55 expected thu-fri. An upper trough amplifies over the eastern us Friday pm into next weekend as sfc low pressure is forecast to deepen over the northeastern us at the same time. This will set the stage for another chance of rain late Friday as well as below average temperatures next weekend. Aviation 14z Saturday through Wednesday As of 640 am edt Saturday... vfr through the 12z TAF period. Winds today will remain light at less than 10 kt, genly from the N but will shift onshore to the E NE near the coast in the aftn. Expect skc through most of the TAF period for all terminals (some high clouds increasing late). Outlook:VFR conditions will continue sun, with high pressure over the region. A disturbance approaches the region late Monday and Tuesday bringing the next chance for flight restrictions and rain. Marine As of 350 am edt Saturday... a weak cold front is dropping n-s across the marine area early this morning. The wind will become NE and briefly increase to 15-20kt immediately behind the cold front mainly over the bay ocean and possibly the lower james. The duration will only be 1-2hrs, so this will be handled with an mws over the bay. Waves in the bay could also increase to 2-3ft. Otherwise, high pressure will prevail over the region today and Sunday resulting in benign marine conditions. The wind will become sea bay breeze driven by this aftn, the S SE 5-10kt tonight, before becoming N Sunday morning then E 10kt by Sunday aftn as high pressure shifts toward new england and low pressure moves into the deep south. High pressure pushes off the SRN new england coast early next week as low pressure moves off the southeast coast. This will result in increasing onshore flow. An E wind is expected to reach 10-15kt by Monday, and then 15-25kt by Monday night Tuesday Tuesday night. Onshore flow will result in seas building to 6-10ft Tuesday Tuesday night, with 4-5ft waves in the mouth of the bay (2-4ft elsewhere in the bay). Broad low pressure crosses the region Wednesday with the wind becoming nw in the wake of the low. Akq watches warnings advisories Md... None. Nc... None. Va... None. Marine... None. Synopsis... Mas near term... Mas short term... Mas mam long term... Eri aviation... Lkb mas 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 |
| PPTM2 - 8578240 - Piney Point, MD | 5 mi | 42 min | SSW 5.1 G 6 | |||||
| LWTV2 - 8635750 - Lewisetta, VA | 14 mi | 42 min | E 1.9 G 2.9 | 47°F | 53°F | 1032.8 hPa (+0.7) | ||
| SLIM2 - 8577330 - Solomons Island, MD | 15 mi | 42 min | E 5.1 G 7 | 47°F | 52°F | 1032.4 hPa (+0.5) | ||
| 44042 - Potomac, MD | 18 mi | 32 min | ENE 5.8 G 7.8 | 46°F | 1034.1 hPa | |||
| COVM2 - 8577018 - Cove Point LNG Pier, MD | 22 mi | 42 min | NNE 4.1 G 6 | 46°F | 1033.2 hPa (+0.4) | |||
| NCDV2 | 25 mi | 42 min | ESE 4.1 G 5.1 | 49°F | 54°F | 1031.9 hPa (+0.0) | ||
| 44062 - Gooses Reef, MD | 30 mi | 32 min | E 3.9 G 5.8 | 47°F | 1033.1 hPa | |||
| BISM2 - 8571421 - Bishops Head, MD | 32 mi | 42 min | NE 6 G 7 | 48°F | 51°F | 1032.8 hPa (+0.5) | ||
| CA2 - 8571892 - Cambridge, MD | 42 mi | 42 min | 51°F | 53°F | 1033.2 hPa (+0.4) | |||
| BSLM2 - Chesapeake Bay, MD | 44 mi | 132 min | NNE 1 | 46°F | 1033 hPa | 29°F |
Wind History for Piney Point, MD
(wind in knots) EDIT (on/off) Help| 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 | NW | NW | NW | NW | NW | NW | N | N | E | S | SW | W | W | NE | E | E | E | NE G7 | E | E | E | E | SE G6 | SW |
| 1 day ago | N | NW | N | NW | N | N | N | N | N | N | N | N G23 | N | N | N | N | N | N | N | N | NW | NW G22 | N | NW |
| 2 days ago | N | N | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | E | N | N | N | N | W | NW | NW | NW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD | 11 mi | 49 min | NNE 6 | 10.00 mi | Fair | 51°F | 27°F | 39% | 1032.3 hPa |
| St Marys County Airport, MD | 12 mi | 65 min | N 0 | 10.00 mi | Fair | 50°F | 28°F | 43% | 1033.2 hPa |
| Patuxent River, Naval Air Station, MD | 16 mi | 1.8 hrs | Var 4 | 10.00 mi | Partly Cloudy | 51°F | 26°F | 38% | 1032.7 hPa |
| Tappahannock-Essex County Airport, VA | 24 mi | 67 min | NNW 4 | 10.00 mi | Fair | 52°F | 31°F | 46% | 1032.8 hPa |
Wind History from NUI (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 | W G15 | NW G19 | NW | NW | W | E | NE | NE | Calm | Calm | Calm | Calm | Calm | NE | NE G17 | NE | NE | NE | Calm | NE | E | N | ||
| 1 day ago | SW | SW | NW G21 | NW G17 | NW G32 | W G34 | W G30 | NW G28 | NW G18 | NW G23 | NW | NW | W | W | W | NW | NW | NW | NW | NW | NW G16 | NW G18 | NW G14 | NW G19 |
| 2 days ago | SW | S | Calm | E | E | E | E | E | E | E | E | E | SE | E | Calm | NW | N | Calm | W | W | W |
Tide / Current Tables for Coles Point, Virginia
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Coles Point Click for Map Sat -- 12:40 AM EDT 0.25 feet Low Tide Sat -- 12:53 AM EDT Moonset Sat -- 06:22 AM EDT Sunrise Sat -- 06:50 AM EDT 2.25 feet High Tide Sat -- 11:03 AM EDT Moonrise Sat -- 01:44 PM EDT 0.18 feet Low Tide Sat -- 07:43 PM EDT 1.95 feet High Tide Sat -- 07:48 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 |
| 0.3 | 0.3 | 0.4 | 0.8 | 1.3 | 1.9 | 2.2 | 2.2 | 2 | 1.6 | 1.2 | 0.8 | 0.5 | 0.3 | 0.2 | 0.4 | 0.8 | 1.3 | 1.7 | 1.9 | 1.9 | 1.7 | 1.3 | 0.9 |
Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
EDIT (on/off) Help One Week of Data| Point Patience Click for MapFlood direction 315° true Ebb direction 145° true Sat -- 12:53 AM EDT Moonset Sat -- 01:12 AM EDT 0.00 knots Slack Sat -- 03:51 AM EDT 0.61 knots Max Flood Sat -- 06:21 AM EDT Sunrise Sat -- 06:46 AM EDT -0.00 knots Slack Sat -- 10:52 AM EDT -0.94 knots Max Ebb Sat -- 11:02 AM EDT Moonrise Sat -- 03:28 PM EDT 0.00 knots Slack Sat -- 04:55 PM EDT 0.29 knots Max Flood Sat -- 07:03 PM EDT -0.00 knots Slack Sat -- 07:48 PM EDT Sunset Sat -- 10:42 PM EDT -0.53 knots Max Ebb 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 | -0.1 | 0.3 | 0.5 | 0.6 | 0.5 | 0.2 | -0.1 | -0.4 | -0.7 | -0.9 | -0.9 | -0.9 | -0.7 | -0.4 | -0.1 | 0.2 | 0.3 | 0.2 | 0 | -0.2 | -0.4 | -0.5 | -0.5 |
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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Wakefield, VA (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. |