Monday, March1, 2021
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Marine Weather and Tides
Dahlgren Center, VA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:37AMSunset 6:02PM Monday March 1, 2021 6:16 PM EST (23:16 UTC) Moonrise 8:54PMMoonset 8:16AM Illumination 89% Phase: Waning Gibbous; Moon at 18 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ536 Tidal Potomac From Indian Head To Cobb Island- 342 Pm Est Mon Mar 1 2021
.gale warning in effect through Tuesday morning...
.small craft advisory in effect from Tuesday morning through Tuesday afternoon...
Rest of this afternoon..NW winds 15 kt with gusts to 35 kt. Waves 3 ft. A chance of showers.
Tonight..NW winds 15 kt with gusts to 35 kt. Waves 3 ft.
Tue..NW winds 10 to 15 kt with gusts to 35 kt... Becoming W 5 to 10 kt late. Waves 2 to 3 ft.
Tue night..S winds 10 kt with gusts to 20 kt. Waves 1 ft.
Wed..W winds 5 to 10 kt. Waves 1 ft.
Wed night..NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
Thu..NW winds 5 to 10 kt. Waves 1 ft.
Fri..NW winds 5 to 10 kt. Waves 1 ft.
ANZ500 342 Pm Est Mon Mar 1 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will push south of the waters through tonight as canadian high pressure builds into the region through Tuesday. Low pressure is expected to pass across the southeast Wednesday as high pressure returns for the latter portion of the week. Small craft advisories may be needed Wednesday and Thursday.


7 Day Forecast for Marine Location Near Dahlgren Center, VA
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location: 38.32, -77.03     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 012010 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 310 PM EST Mon Mar 1 2021

SYNOPSIS. One cold front has just cleared the region while a second cold front will cross the region later this evening. High pressure will then build in for Tuesday. Low pressure will pass to the south Wednesday. Another cold front will pass through Wednesday night and Canadian high pressure will build toward the area for late this week into the weekend.

NEAR TERM /THROUGH TUESDAY/. First cold front has cleared the region, with strong northwest flow behind it. Mixing has not quite reached peak, so still think winds will increase strength through rush hour before dropping off around sunset. However, secondary front will arrive later this evening, so kept wind advisory going until midnight as inherited. Added in Allegheny Front and Blue Ridge zones earlier and have some areas going later based on mid-level winds, but expect all areas below advisory strength by late tonight. As there will be a potent vort max supporting the secondary front, it may be accompanied by a few snow showers, maybe even a snow squall, along the Allegheny Front, and a few sprinkles/flurries may reach east of the mountains later this evening/overnight, but overall, a much drier period is anticipated. Lows dropping below freezing across the region.

High pressure builds slowly into the area Tuesday, but it will be considerably colder. Winds should slowly but surely relax, however, and there should also be more sunshine. Highs mostly in the 40s.

SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/. Dry period continues through mid-week with high pressure. Lighter winds and not quite as cold Tuesday night as clouds increase a bit while low pressure passes to our south. Milder temperatures Wednesday will prevail thanks to warm advection aloft. Highs should rebound into the 50s. Dry cold front then pushes south across the region Wednesday night, but best cold advection will wait til Thursday, so lows Wednesday night won't be any colder . in fact. likely slightly milder than tonight and Tuesday night, with many areas staying above freezing.

LONG TERM /THURSDAY THROUGH MONDAY/. A breezy northwest flow will prevail Thursday into Friday and keep temperatures below average as the region sits between an upper-level low over eastern Canada and high pressure over the Great Lakes region.

Dry and seasonably cool conditions continue Saturday into Sunday as Canadian high pressure moves overhead. This likely keeps an area of coastal low pressure to the south before heading out to sea. As the broad trough moves east early next week, temperatures will moderate towards seasonal levels.

AVIATION /20Z MONDAY THROUGH SATURDAY/. VFR conditions expected for the next several days. Main concern is winds this afternoon and this evening which may approach 40 knots in gusts. Winds slowly relax later tonight into Tuesday. Could be a stray flurry or rain/snow shower this evening, but most likely, dry conditions prevail.

VFR conditions under northwest winds Thursday into Friday afternoon. Winds could gust to 30 knots behind the cold front Thursday into Friday.

MARINE. Northwest flow likely increases to low-end gale the next few hours as mixing improves, may then back off a bit, then increases once again later this evening as secondary front moves through. After that, winds should gradually start to relax later tonight and Tuesday as gradient relaxes and high pressure builds in. Another front approaching Wednesday with a low passing by to the south could also cause SCA conditions.

A SCA is likely Thursday into Friday as a pressure gradient builds over the region and strong northwest flow prevails.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . Wind Advisory until midnight EST tonight for MDZ001-003>006- 008-011-501>508. VA . Wind Advisory until 4 AM EST Tuesday for VAZ507-508. Wind Advisory until midnight EST tonight for VAZ503-505-506. WV . Wind Advisory until 4 AM EST Tuesday for WVZ501-505. Wind Advisory until midnight EST tonight for WVZ051>053-503- 504. MARINE . Small Craft Advisory from 11 AM to 6 PM EST Tuesday for ANZ530>543. Gale Warning until 11 AM EST Tuesday for ANZ530>543.

SYNOPSIS . RCM NEAR TERM . RCM SHORT TERM . RCM LONG TERM . CPB AVIATION . RCM/CPB MARINE . RCM/CPB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCDV2 0 mi46 min NW 4.1 G 7 50°F 42°F1011.6 hPa
PPTM2 - 8578240 - Piney Point, MD 29 mi46 min N 4.1 G 6
SLIM2 - 8577330 - Solomons Island, MD 31 mi46 min NW 8 G 12 48°F 40°F1011.3 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 35 mi46 min NW 18 G 23 48°F 1011.9 hPa
44062 - Gooses Reef, MD 36 mi34 min NW 7.8 G 14 46°F 39°F1005.5 hPa
BSLM2 - Chesapeake Bay, MD 36 mi46 min NNE 9.9 49°F 1010 hPa28°F
LWTV2 - 8635750 - Lewisetta, VA 37 mi46 min NNW 8 G 9.9 49°F 41°F1012.1 hPa
WASD2 - 8594900 - Washington, DC 38 mi46 min NW 8.9 G 15 51°F 43°F1012.3 hPa
44042 - Potomac, MD 42 mi22 min NNW 7.8 G 7.8 44°F 40°F1012.9 hPa

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Quantico Marine Corps Airfield - Turner Field, VA19 mi20 minNW 16 G 2510.00 miFair52°F25°F35%1013.6 hPa
Stafford, Stafford Regional Airport, VA23 mi21 minWNW 1110.00 miFair49°F16°F26%1014.9 hPa
Fredericksburg, Shannon Airport, VA23 mi41 minWNW 9 G 1510.00 miFair51°F29°F42%1012.9 hPa

Link to 5 minute data for KNYG

Wind History from NYG (wind in knots)
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Last 24hr--CalmCalmCalmNE6E4CalmN6CalmCalmSE3CalmCalmS5S73CalmNW14
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1 day agoCalmCalmCalmCalmCalmCalmCalmN3CalmSW3CalmCalmCalmNE4NE5E3S10E7E5CalmCalmNE3CalmCalm
2 days agoE6SE11SE9E4NE4NE5N6N5N6N5NE6N5NW6CalmS4W4S6W9S3SW8S11S9CalmS4

Tide / Current Tables for Dahlgren, Upper Machodoc Creek, Virginia (2)
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Dahlgren
Click for Map
Mon -- 04:18 AM EST     1.84 feet High Tide
Mon -- 06:39 AM EST     Sunrise
Mon -- 08:15 AM EST     Moonset
Mon -- 10:48 AM EST     -0.11 feet Low Tide
Mon -- 04:44 PM EST     1.78 feet High Tide
Mon -- 06:01 PM EST     Sunset
Mon -- 08:54 PM EST     Moonrise
Mon -- 11:02 PM EST     -0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.71.31.71.81.81.410.60.2-0-0.100.511.51.71.81.61.10.70.30-0.1

Tide / Current Tables for Mathias Point, Virginia
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Mathias Point
Click for Map
Mon -- 05:01 AM EST     1.40 feet High Tide
Mon -- 06:39 AM EST     Sunrise
Mon -- 08:15 AM EST     Moonset
Mon -- 11:43 AM EST     -0.08 feet Low Tide
Mon -- 05:27 PM EST     1.36 feet High Tide
Mon -- 06:01 PM EST     Sunset
Mon -- 08:54 PM EST     Moonrise
Mon -- 11:57 PM EST     -0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-00.20.611.31.41.310.70.40.1-0-0.10.10.40.81.21.31.31.10.80.50.2-0

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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