Sunday, May27, 2018 L-36.com


Marine Weather and Tides
North Chevy Chase, MD

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:44AMSunset 8:26PM Sunday May 27, 2018 9:02 PM EDT (01:02 UTC) Moonrise 5:34PMMoonset 3:53AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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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ANZ535 Tidal Potomac From Key Bridge To Indian Head- 733 Pm Edt Sun May 27 2018
Tonight..SE winds 5 kt. Waves less than 1 ft. Showers likely. Tstms likely.
Mon..SE winds around 5 kt. Waves 1 ft. A chance of showers.
Mon night..SW winds around 5 kt. Waves 1 ft.
Tue..SE winds around 5 kt. Waves 1 ft or less.
Tue night..SE winds around 5 kt. Waves 1 ft.
Wed..SE winds 5 to 10 kt. Waves 1 ft. Showers likely.
Wed night..SE winds 5 to 10 kt. Waves 1 ft. Showers likely.
Thu..SW winds around 5 kt. Waves 1 ft. Showers likely. A chance of tstms. A chance of showers after midnight.
Fri..NW winds around 5 kt. Waves 1 ft. Showers likely. A chance of tstms. A chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 733 Pm Edt Sun May 27 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front moving south out of pennsylvania will cross the waters this afternoon, then stall over the waters before dissipating by the middle of the week. Small craft advisory conditions are possible Wednesday.

7 Day Forecast for Marine Location Near North Chevy Chase, MD
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location: 39, -77.09     debug


Area Discussion for - Baltimore, MD/Washington
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Please check Station number (lwx) in setup.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 10 mi45 min N 6 G 7 73°F 74°F1014.7 hPa
BSLM2 - Chesapeake Bay, MD 25 mi153 min N 1.9 72°F 1013 hPa68°F
APAM2 - 8575512 - Annapolis, MD 32 mi45 min 71°F 1015 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 33 mi45 min ENE 14 G 18 67°F 1015.2 hPa
BLTM2 - 8574680 - Baltimore, MD 33 mi45 min ESE 13 G 16 68°F 77°F1015.1 hPa
FSNM2 34 mi45 min ENE 16 G 19 66°F 1015 hPa
44063 - Annapolis 34 mi63 min ENE 9.7 G 14 71°F 73°F1015.3 hPa (+1.2)
TPLM2 - Thomas Point, MD 35 mi63 min ENE 9.9 G 11 72°F 72°F1016.2 hPa (+2.0)71°F
CPVM2 37 mi45 min 71°F 71°F
44062 - Gooses Reef, MD 47 mi33 min E 7.8 G 9.7 71°F 1011.8 hPa
NCDV2 47 mi45 min NW 1 G 4.1 74°F 77°F1013.6 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 47 mi45 min E 6 G 12 65°F 76°F1015.8 hPa

Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
College Park Airport, MD9 mi66 minESE 410.00 miOvercast73°F67°F83%1014.9 hPa
Washington/Reagan National Airport, DC, VA10 mi71 minENE 1110.00 miOvercast74°F68°F82%1014.8 hPa
Gaithersburg - Montgomery County Airport, MD12 mi67 minVar 310.00 miMostly Cloudy72°F66°F84%1017.3 hPa
Camp Springs / Andrews Air Force Base, MD17 mi67 minNNE 510.00 miLight Rain71°F67°F90%1015 hPa
Fort Meade / Tipton, MD18 mi66 minE 710.00 miOvercast70°F68°F94%1015.6 hPa
Washington/Dulles International Airport, DC, VA19 mi71 minE 510.00 miMostly Cloudy75°F71°F88%1014.3 hPa
Fort Belvoir, VA19 mi67 minN 010.00 miMostly Cloudy74°F70°F88%1014.8 hPa

Wind History from CGS (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmS3CalmCalmCalmCalmCalmCalmSW3CalmCalmCalmS3S3CalmE8NE5NE4E3
1 day agoS3S4S4S4S3CalmS3CalmS3CalmCalmCalmS3SW3S4CalmS6S4NW8CalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW4S3CalmS4S4S6S7S6S7S9S5S5S4

Tide / Current Tables for Chain Bridge, D.C.
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Chain Bridge
Click for Map
Sun -- 01:57 AM EDT     0.24 feet Low Tide
Sun -- 04:53 AM EDT     Moonset
Sun -- 05:47 AM EDT     Sunrise
Sun -- 07:46 AM EDT     3.57 feet High Tide
Sun -- 02:42 PM EDT     0.11 feet Low Tide
Sun -- 06:33 PM EDT     Moonrise
Sun -- 08:16 PM EDT     3.11 feet High Tide
Sun -- 08:24 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.40.20.51.32.22.93.43.63.22.621.40.80.30.10.61.42.12.83.132.51.8

Tide / Current Tables for Chain Bridge, one mile below, Washington, D.C.
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Chain Bridge
Click for Map
Sun -- 01:51 AM EDT     0.18 feet Low Tide
Sun -- 04:53 AM EDT     Moonset
Sun -- 05:47 AM EDT     Sunrise
Sun -- 07:42 AM EDT     3.60 feet High Tide
Sun -- 02:36 PM EDT     0.06 feet Low Tide
Sun -- 06:33 PM EDT     Moonrise
Sun -- 08:11 PM EDT     3.14 feet High Tide
Sun -- 08:24 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.40.20.51.32.333.53.63.22.61.91.30.70.20.10.61.42.22.83.132.41.8

Weather Map and Satellite Images
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wmap_A
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 Baltimore, MD/Washington (21,6,7,8)
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Ground Weather Radar Station Sterling, VA
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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.