Friday, September22, 2017 L-36.com


Marine Weather and Tides
Marumsco, VA

Version 3.4
What's New / NOTES
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.
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 6:56AMSunset 7:06PM Friday September 22, 2017 8:15 PM EDT (00:15 UTC) Moonrise 8:13AMMoonset 7:46PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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- 731 Pm Edt Fri Sep 22 2017
Tonight..NW winds 5 kt. Waves less than 1 ft.
Sat..N winds around 5 kt. Waves 1 ft.
Sat night..NW winds around 5 kt. Waves 1 ft.
Sun..NE winds around 5 kt. Waves 1 ft.
Sun night..N winds around 5 kt. Waves 1 ft or less.
Mon..NE winds around 5 kt. Waves 1 ft.
Mon night..NE winds around 5 kt. Waves 1 ft or less.
Tue..NE winds around 5 kt. Waves 1 ft.
Wed..N winds 5 kt. Waves less than 1 ft.
ANZ500 731 Pm Edt Fri Sep 22 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A ridge of high pressure will remain over the eastern united states through early next week.

7 Day Forecast for Marine Location Near Marumsco, VA
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location: 38.61, -77.23     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 222338
afdlwx
area forecast discussion
national weather service baltimore md washington dc
738 pm edt Fri sep 22 2017

Synopsis
Surface and upper level high pressure will remain in place through
the weekend and into next week. Hurricane maria is expected to
remain over the atlantic well to our southeast through at least
early next week.

Near term through Saturday
Quiet weather will continue tonight, with the high cloud deck
gradually thinning. There may be some patchy fog in the favored
locations with light winds and falling temperatures, however
the clouds should limit density and coverage. Lows tonight in
the 50s and 60s.

Short term Saturday night through Sunday night
Warm and dry conditions will persist through the weekend under
continued ridging. Saturday should see mostly sunny skies with a few
high cirrus, with highs once again in the mid 80s. Lows Saturday
night in the 50s 60s, with patchy fog possible again.

Sunday will be even warmer under mostly sunny skies. 925 mb
temperatures of 22-24c should allow highs to reach the upper 80s,
with a few spot 90f readings possible as well. Mild conditions
Sunday night with lows only in the 60s 70s.

Long term Monday through Friday
High pressure at the surface and aloft will allow for dry
conditions over the region Monday and part of Tuesday. At the
same time hurricane maria will be moving north over the west
atlantic ocean Monday into Wednesday night or Thursday.

At this moment it is not expected that it will affect our area,
however it is possible we could get some external rainbands
Tuesday or Wednesday if it gets close enough. Please monitor
the national hurricane center's website hurricanes.Gov for more
information.

A cold front will move through our CWA either Wednesday night or
Thursday increasing the chance of showers over our area and pushing
maria away from the us east coast. Dry conditions return behind it
later on Thursday and Friday.

Aviation 00z Saturday through Wednesday
Scattered to broken deck of high clouds expected through
tonight. Some patchy fog possible each night and early morning
(mainly cho mrb), otherwise, mainlyVFR through the weekend.

Vfr conditions expected Monday and Tuesday with high pressure
over our area. Some sub-vfr conditions possible later Tuesday
and Wednesday with maybe some showers around, but looking mostly
dry.

Marine
High pressure will allow for light winds around 10 knots or less
through the weekend.

No small craft advisories expected between Monday and Tuesday
as wind gusts will be below criteria over our area. Wind gusts
increase Tuesday night and Wednesday with hurricane maria over
the west atlantic ocean.

Tides coastal flooding
Minor coastal flooding expected through this evening's and
tonight's high tide cycles at annapolis (anne arundel) and
straits point (st. Mary's). These advisories may need to be
extended further. Solomons island (calvert) and washington (dc)
will also need to be closely monitored as levels are forecast
near, but below, their flood stage.

Lwx watches warnings advisories
Dc... None.

Md... Coastal flood advisory until 10 pm edt this evening for mdz014.

Coastal flood advisory until 7 am edt Saturday for mdz017.

Va... None.

Wv... None.

Marine... None.

Update... Woody!
previous... Mm imr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 21 mi46 min Calm G 1.9 77°F 75°F1015.5 hPa
NCDV2 22 mi46 min NW 1 G 1.9 75°F 77°F1014.6 hPa
BSLM2 - Chesapeake Bay, MD 30 mi106 min Calm 75°F 1015 hPa67°F
44062 - Gooses Reef, MD 43 mi36 min N 1.9 G 3.9 77°F 1015.9 hPa
SLIM2 - 8577330 - Solomons Island, MD 46 mi46 min N 4.1 G 5.1 76°F 76°F1015 hPa
TPLM2 - Thomas Point, MD 47 mi76 min NW 5.1 G 6 77°F 76°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 47 mi46 min N 2.9 G 5.1 76°F 1015.9 hPa
APAM2 - 8575512 - Annapolis, MD 47 mi46 min 75°F 1014.6 hPa
44063 - Annapolis 48 mi36 min NW 3.9 G 5.8 76°F 1014.2 hPa
PPTM2 - 8578240 - Piney Point, MD 49 mi46 min NNW 6 G 6

Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Quantico Marine Corps Airfield - Turner Field, VA8 mi20 minNW 410.00 miFair73°F70°F90%1016 hPa
Fort Belvoir, VA9 mi80 minN 010.00 miFair73°F66°F80%1015.8 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA17 mi20 minN 010.00 miFair70°F66°F87%1016.9 hPa
Stafford, Stafford Regional Airport, VA19 mi21 minN 010.00 miFair67°F67°F100%1017.3 hPa
Washington/Reagan National Airport, DC, VA20 mi24 minN 310.00 miMostly Cloudy80°F66°F64%1015.8 hPa
Camp Springs / Andrews Air Force Base, MD24 mi78 minNNE 410.00 miFair75°F63°F67%1015.7 hPa

Wind History from NYG (wind in knots)
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Last 24hrNW6NW5NW6NW5NW6NW5NW8NW7NW5NW6N6CalmNW5NW6NE3E6E4NW6N6N4N5N4NW4NW4
1 day agoNW8NW4NW6NW6NW6NW7NW7NW5NW6CalmCalmNW3NW3E6E6E5E3SE3SW5S4CalmNE3NW5NW5
2 days agoN7NW6N5N9NE3NW6NW6NW8NW9NW5NW5W3NW7N9N8N8N115NW6N8N8N6NW6NW7

Tide / Current Tables for High Point, Occoquan Bay, Virginia
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High Point
Click for Map
Fri -- 03:33 AM EDT     0.06 feet Low Tide
Fri -- 06:56 AM EDT     Sunrise
Fri -- 09:12 AM EDT     Moonrise
Fri -- 09:14 AM EDT     1.88 feet High Tide
Fri -- 03:44 PM EDT     0.08 feet Low Tide
Fri -- 07:05 PM EDT     Sunset
Fri -- 08:46 PM EDT     Moonset
Fri -- 09:32 PM EDT     1.95 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.70.40.10.10.40.91.41.71.91.81.51.10.70.40.10.10.30.81.31.71.91.91.7

Tide / Current Tables for Gunston Cove, Virginia
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Gunston Cove
Click for Map
Fri -- 04:07 AM EDT     0.08 feet Low Tide
Fri -- 06:56 AM EDT     Sunrise
Fri -- 09:12 AM EDT     Moonrise
Fri -- 09:48 AM EDT     2.37 feet High Tide
Fri -- 04:18 PM EDT     0.09 feet Low Tide
Fri -- 07:05 PM EDT     Sunset
Fri -- 08:45 PM EDT     Moonset
Fri -- 10:06 PM EDT     2.47 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.10.70.30.10.20.71.41.92.32.42.11.61.10.70.30.10.20.61.31.92.32.52.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Baltimore, MD/Washington (20,4,5,8)
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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 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.