Friday, March24, 2017 L-36.com


Marine Weather and Tides
Fort Washington, MD

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:02AMSunset 7:25PM Friday March 24, 2017 9:54 PM EDT (01:54 UTC) Moonrise 4:01AMMoonset 2:51PM Illumination 7% 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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ANZ535 Tidal Potomac From Key Bridge To Indian Head- 758 Pm Edt Fri Mar 24 2017
Tonight..SW winds 5 to 10 kt. Waves 1 ft.
Sat..SW winds 5 kt. Waves less than 1 ft.
Sat night..S winds around 5 kt. Waves 1 ft.
Sun..SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Sun night..S winds 5 to 10 kt. Waves 1 ft. Showers likely.
Mon..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Mon night..SW winds around 5 kt. Waves 1 ft.
Tue..W winds 5 kt. Waves less than 1 ft. A chance of showers.
Wed..N winds 5 kt. Waves less than 1 ft. A chance of showers in the morning.
ANZ500 758 Pm Edt Fri Mar 24 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will drift east to bermuda through this evening. Two low pressure systems will enter and weaken over the midwest Saturday and Monday night. Small craft advisories may be needed for portions of the waters Sunday and Sunday night.

7 Day Forecast for Marine Location Near Fort Washington, MD
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location: 38.72, -77.03     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 241856
afdlwx
area forecast discussion
national weather service baltimore md/washington dc
256 pm edt Fri mar 24 2017

Synopsis High pressure offshore will remain in control of the
area through early next week. Low pressure will approach the
area on Tuesday with a cold front moving through the area
Tuesday night. High pressure builds again over the area for the
middle part of next week.

Near term /through Saturday/ High pressure offshore will
maintain its grip over the area through early next week
supporting mild temperatures. A small chance of showers will
exist along the mason-dixon line due to a proximity of a
stationary bdry across pennsylvania.

Short term /Saturday night through Sunday night/
On Sunday, a backdoor cdfnt could push south into southern md
bringing low clouds and cooler temperatures due to a more
onshore flow. Widespread showers will work into the area late
sun and Sun night in area of sfc convergence and warm air
advection ahead of low pressure moving into the great lks.

Long term /Monday through Friday/
Unsettled weather expected on Monday with return flow over our
area and frontal boundary stalled north of us. Pops may diminish
Monday night before another front moves across our area Tuesday
into Tuesday night. Showers and thunderstorms possible.

Conditions starts drying on Wednesday and into Thursday as high
pressure builds into the area. Warm front lifts north Thursday
into Friday, increasing pops over our area. High temperatures
during this period will be gradually decreasing from the 60s and
70s on Monday into the 50s and 60s on Friday.

Aviation /18z Friday through Wednesday/ Brief MVFR fog early
tomorrow, otherwiseVFR.

Unsettled weather on Monday as frontal boundary stalls north of
our area. Brief period of dry conditions Monday night before
another front approaches on Tuesday. Dry conditions return
Wednesday. Sub-vfr periods possible Monday into Tuesday, then
vfr Wednesday.

Marine Small craft conditions through this evening. Winds
begin to diminish overnight.

Unsettled weather on Monday as frontal boundary stalls north of
our area. Brief period of dry conditions Monday night before
another front approaches on Tuesday. Dry conditions return
Wednesday. Winds expected to be below the small craft advisory
threshold during this period.

Lwx watches/warnings/advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until midnight edt tonight for anz530>533-
535>537-539>542.

Small craft advisory until 6 pm edt this evening for anz538.

Small craft advisory until 6 am edt Saturday for anz534-543.

Synopsis... Lfr
near term... Lfr
short term... Lfr
long term... Imr
aviation... Imr/lfr
marine... Imr/lfr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 11 mi60 min S 5.1 G 7 57°F 46°F1021.1 hPa
BSLM2 - Chesapeake Bay, MD 18 mi144 min SSW 5.1 62°F 1021 hPa39°F
NCDV2 28 mi54 min SW 14 G 21 65°F 46°F1021.6 hPa (-0.8)
TPLM2 - Thomas Point, MD 34 mi54 min SSE 8 G 8 50°F 44°F43°F
APAM2 - 8575512 - Annapolis, MD 34 mi54 min 48°F 1021.5 hPa (-0.0)
44062 - Gooses Reef, MD 35 mi44 min S 7.8 G 7.8 53°F 1022.8 hPa
CPVM2 39 mi60 min 50°F 43°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 41 mi54 min SW 18 G 22 64°F 1022.6 hPa (-0.8)
SLIM2 - 8577330 - Solomons Island, MD 41 mi54 min SW 19 G 21 61°F 46°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 44 mi54 min ESE 8 G 8 51°F 1021.5 hPa (-0.0)
FSNM2 44 mi54 min SSW 2.9 G 5.1 60°F 1021.1 hPa (-0.0)
BLTM2 - 8574680 - Baltimore, MD 45 mi54 min Calm G 1.9 57°F 45°F1021 hPa (-0.3)
PPTM2 - 8578240 - Piney Point, MD 48 mi54 min WSW 9.9 G 13

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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Last
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SE4
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G8
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G11
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G10
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N3
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NW5
G9
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G13
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G10
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G23
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G24
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Belvoir, VA8 mi1.9 hrsS 410.00 miFair60°F41°F50%1021.7 hPa
Washington/Reagan National Airport, DC, VA10 mi62 minS 910.00 miMostly Cloudy55°F44°F67%1021.7 hPa
Camp Springs / Andrews Air Force Base, MD11 mi1.9 hrsSSW 1110.00 miFair60°F40°F48%1021.8 hPa
College Park Airport, MD19 mi73 minN 010.00 miFair59°F37°F45%1021.3 hPa
Quantico Marine Corps Airfield - Turner Field, VA20 mi58 minSW 1010.00 miFair65°F46°F52%1022.5 hPa

Wind History from DAA (wind in knots)
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Last 24hrSE6SE5SE6SE5SE6SE5S6SE6S6S6S8S8S7S7S5S8S12
G17
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G16
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G16
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G14
53S4S3
1 day agoN7NW3N3N3N4CalmCalmCalmCalmCalmCalm44CalmW43NW336Calm4SE4SE4S4
2 days agoCalmNW3CalmCalmCalmCalmNW8NW7N12
G19
NW15
G25
NW19
G27
NW16
G27
NW19
G27
N11
G28
NW12
G18
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G25
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G23
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G22
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G22
N11
G18
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G20
NW12
G18
N5NW6

Tide / Current Tables for Riverview, Potomac River, Maryland
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Riverview
Click for Map
Fri -- 05:01 AM EDT     Moonrise
Fri -- 05:49 AM EDT     2.51 feet High Tide
Fri -- 07:04 AM EDT     Sunrise
Fri -- 12:05 PM EDT     0.33 feet Low Tide
Fri -- 03:50 PM EDT     Moonset
Fri -- 06:03 PM EDT     2.61 feet High Tide
Fri -- 07:24 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.51.11.72.22.42.52.31.81.30.80.50.30.40.91.52.12.52.62.52.11.510.6

Tide / Current Tables for Alexandria, Virginia
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Alexandria
Click for Map
Fri -- 12:08 AM EDT     0.39 feet Low Tide
Fri -- 05:01 AM EDT     Moonrise
Fri -- 06:04 AM EDT     2.78 feet High Tide
Fri -- 07:04 AM EDT     Sunrise
Fri -- 12:19 PM EDT     0.35 feet Low Tide
Fri -- 03:50 PM EDT     Moonset
Fri -- 06:18 PM EDT     2.90 feet High Tide
Fri -- 07:24 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.511.72.32.62.82.62.11.510.60.40.40.81.52.22.72.92.82.41.81.30.8

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 (21,6,7,8)
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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 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.