Wednesday, January22, 2020
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Marine Weather and Tides
Quantico, VA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:20AMSunset 5:20PM Wednesday January 22, 2020 2:43 AM EST (07:43 UTC) Moonrise 5:37AMMoonset 3:18PM Illumination 9% Phase: Waning Crescent; Moon at 27 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- 1237 Am Est Wed Jan 22 2020
Overnight..N winds 10 kt. Waves 1 ft.
Wed..N winds 5 kt. Waves less than 1 ft.
Wed night..N winds around 5 kt. Waves 1 ft or less.
Thu..E winds around 5 kt. Waves flat.
Thu night..NE winds around 5 kt. Waves flat.
Fri..E winds around 5 kt. Waves 1 ft.
Fri night..E winds 5 to 10 kt. Waves 1 ft. Rain.
Sat..SE winds 5 to 10 kt...becoming w. Waves 1 ft. Rain likely through the day.
Sun..NW winds 5 to 10 kt. Waves 1 ft.
ANZ500 1237 Am Est Wed Jan 22 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build eastward from the mississippi valley through Wednesday, then move offshore during the second half of the week. A low pressure system will approach on Saturday. Small craft advisories may be needed Friday night through Sunday.


7 Day Forecast for Marine Location Near Quantico, VA
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location: 38.47, -77.27     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 220236 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 936 PM EST Tue Jan 21 2020

SYNOPSIS. High Pressure will continue to move eastward from the Mississippi Valley, resulting in dry weather through Wednesday. The high will shift offshore during the second half of the week. Low pressure will approach from the central United States on Saturday.

NEAR TERM /THROUGH TONIGHT/. High pressure will build in from the Ohio Valley overnight. Winds are currently light out of the north, but should eventually go calm in many spots, especially across the WV Panhandle and western MD, where the high will become centered directly overhead toward daybreak. Skies will be clear, making for ideal radiational cooling conditions where the winds go calm. This will allow most locations outside of the immediate urban areas to drop back into the teens overnight, with some single digits possible in some of the sheltered higher elevation valleys in WV and Highland County, VA.

SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/. Sunny skies are expected tomorrow, with high pressure in place at the surface, and shortwave ridging overhead at mid-upper levels. Highs tomorrow will run a couple degrees warmer than today, with predominantly upper 30s and low 40s across the area. High pressure will hold strong at the surface tomorrow night through Thursday, but the ridge aloft will break down and shift off to our east as a trough digs across the center of the country. Mid-high level clouds may begin to stream in ahead of that system Thursday afternoon into Thursday Night as winds aloft switch around to southwesterly. Conditions will remain dry both Thursday and Thursday Night, with highs in the mid 40s on Thursday and lows in the 20s to low 30s Thursday Night

LONG TERM /FRIDAY THROUGH TUESDAY/. A low pressure system will develop and deepen over the central U.S. Friday. As the low moves to the northeast, rain chances will overspread the region from southwest to northeast into Friday night. A coastal low will develop Saturday into Saturday night. Rain or snow is possible. The best chance for wintry weather will be west of the Blue Ridge. As the low deepens offshore Sunday, rain and/or snow showers will be possible to linger Sunday night into early Monday. Upslope snow is expected Monday afternoon through Tuesday.

AVIATION /02Z WEDNESDAY THROUGH SUNDAY/. VFR conditions will continue tonight through tomorrow as high pressure moves across the area. North-northwesterly winds will gradually decrease through the night, then become light and variable tomorrow through Thursday night.

VFR conditions Friday. MVFR to IFR conditions possible with rain Friday night and Saturday. VFR conditions returning Saturday night. Winds northeast becoming east 5 to 10 knots Friday and Friday night. Winds backing to the northwest 5 to 10 knots Saturday and Saturday night.

MARINE. Winds have decreased over the waters and are now below SCA levels out of the north. Winds will continue to decrease through the night and into the day tomorrow as high pressure builds overhead. Winds will stay below SCA levels on Thursday, with high pressure still in control.

No marine hazards expected Friday. Small craft advisories possible Friday night and Saturday. No marine hazards Saturday night. Winds northeast 10 knots Friday, becoming north then northwest 10 to 20 knots Friday night and Saturday. Winds northwest 10 knots Saturday night.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . None.

SYNOPSIS . MSS NEAR TERM . KJP SHORT TERM . KJP LONG TERM . KLW AVIATION . MSS/KLW/KJP MARINE . MSS/KLW/KJP


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCDV2 16 mi62 min 27°F 40°F1031 hPa
WASD2 - 8594900 - Washington, DC 31 mi56 min 29°F 41°F1031.8 hPa
BSLM2 - Chesapeake Bay, MD 37 mi134 min N 1.9 1031 hPa
PPTM2 - 8578240 - Piney Point, MD 45 mi176 min N 8.9 G 11
SLIM2 - 8577330 - Solomons Island, MD 45 mi56 min 29°F 41°F1031 hPa

Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Quantico Marine Corps Airfield - Turner Field, VA3 mi48 minNNW 810.00 miFair27°F14°F58%1032.3 hPa
Stafford, Stafford Regional Airport, VA11 mi49 minN 510.00 miFair26°F14°F61%1033.2 hPa
Fredericksburg, Shannon Airport, VA17 mi49 minN 010.00 miFair27°F18°F70%1031.8 hPa
Fort Belvoir, VA19 mi1.8 hrsNNW 710.00 miFair27°F12°F55%1032.2 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA22 mi48 minN 710.00 miFair24°F14°F65%1032.7 hPa

Link to 5 minute data for KNYG

Wind History from NYG (wind in knots)
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Last 24hrNW6NW7NW8N10N10N12N13N12
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6NW9N11N8N5N8N5N6N8N10N10N11N8
1 day agoNW8N9
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Tide / Current Tables for Liverpool Point, Maryland
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Liverpool Point
Click for Map
Wed -- 03:46 AM EST     1.14 feet High Tide
Wed -- 05:36 AM EST     Moonrise
Wed -- 07:22 AM EST     Sunrise
Wed -- 10:08 AM EST     -0.09 feet Low Tide
Wed -- 03:18 PM EST     Moonset
Wed -- 04:05 PM EST     1.34 feet High Tide
Wed -- 05:19 PM EST     Sunset
Wed -- 11:02 PM EST     -0.13 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.60.91.11.110.70.40.20-0.1-00.30.711.21.31.310.80.50.30-0.1

Tide / Current Tables for Aquia Creek, Virginia
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Aquia Creek
Click for Map
Wed -- 03:36 AM EST     1.05 feet High Tide
Wed -- 05:36 AM EST     Moonrise
Wed -- 07:22 AM EST     Sunrise
Wed -- 09:53 AM EST     -0.05 feet Low Tide
Wed -- 03:18 PM EST     Moonset
Wed -- 04:11 PM EST     1.40 feet High Tide
Wed -- 05:19 PM EST     Sunset
Wed -- 10:38 PM EST     0.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.60.9110.90.80.60.30.1-00.10.40.711.31.41.31.210.70.40.10

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (2,6,7,8)
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Ground Weather Radar Station Sterling, VA
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weather_mapweather_map weather_map

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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 numerous 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.