Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Stafford Courthouse, VA

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 7:00AMSunset 7:29PM Sunday March 26, 2017 8:38 PM EDT (00:38 UTC) Moonrise 5:19AMMoonset 5:02PM Illumination 0% Phase: New Moon; Moon at 29 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- 731 Pm Edt Sun Mar 26 2017
Tonight..SE winds 10 kt. Waves 1 ft. A chance of rain.
Mon..SW winds 5 to 10 kt. Waves 1 ft.
Mon night..S winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Tue..SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Tue night..NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Wed..N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Wed night..N winds 5 to 10 kt. Waves 1 ft.
Thu..E winds 5 kt. Waves less than 1 ft. A chance of showers through the night.
Fri..NE winds 5 to 10 kt. Waves 1 ft. Showers likely. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 731 Pm Edt Sun Mar 26 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A front will remain stationary just south of the waters through this evening before returning north as a warm front late tonight and Monday. A cold front is expected to cross the chesapeake bay region Tuesday night. Small craft advisories are possible Tuesday night and Wednesday behind the cold front.

7 Day Forecast for Marine Location Near Stafford Courthouse, VA
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location: 38.41, -77.41     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 261825
afdlwx
area forecast discussion
national weather service baltimore md/washington dc
225 pm edt Sun mar 26 2017

Synopsis A front will remain stationary across the area through this
evening then return as a warm front late tonight and Monday.

Another cold front will cross the area late Tuesday. High
pressure will build over the region Thursday.

Near term /through tonight/ Moisture convergence will
increase across the southwest and west with rain/showers moving
into areas west of the blue ridge early this evening and east
of the blue ridge overnight as warm lifts north into
pennsylvania. Areas of fog are also possible. Warm front clears
the area by daybreak Mon if not sooner.

Short term /Monday through Tuesday night/ Low clouds will
erode during the morning with breaks in the clouds expected in
the afternoon. A weak convergence zone will exist/remain and
combined with some instability could be enough for scattered
showers. Better forcing and moisture spreads across the area
late Mon night and Tue with approach of low pressure and
associated cdfnt for better coverage of showers and
thunderstorms.

Long term /Wednesday through Sunday/ long term period starts dry
as high pressure builds over our region Wednesday into Thursday
with high temperatures in the 50s and 60s. Conditions will
deteriorate Thursday night into Friday as a low pressure system
tracks east-northeast from missouri to near lake erie. Its
associated warm front will stay south of the mid-atlantic into
Friday before lifting Friday night. Low pressure develops near
or off of the DELMARVA peninsula Friday night into Saturday as
unsettled conditions continue over our region. Conditions
improve during the day on Saturday as low pressure moves away
from the coast. Dry conditions continue into Sunday.

Aviation /18z Sunday through Friday/ Ifr conditions tonight
with cigs/vsbys improving to MVFR/vfr mon. Chance of rain is
greatest after midnight at main terminals. Showers and possible
t-storms expected again on tue.

Dry/vfr conditions expected for Wednesday and Thursday before
rain approaches the area Thursday night, possibly bringing sub-
vfr conditions over the terminals into Friday.

Marine Winds are not doing much right now so cancelled sca.

However, winds are expected to increase again across the
southern waters late tonight so issue SCA for southern waters.

Dry conditions expected for Wednesday and Thursday before rain
approaches the area Thursday night, bringing showers over the
waters into Friday. Wind gusts will be near the small craft
advisory threshold during parts of this period... Therefore sca
possible at times.

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

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory from 11 pm this evening to 6 pm edt
Monday for anz533-534-537-541>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
NCDV2 21 mi50 min ENE 5.1 G 7 50°F 51°F1022.8 hPa
WASD2 - 8594900 - Washington, DC 38 mi50 min E 4.1 G 7 47°F 48°F1023.7 hPa
BSLM2 - Chesapeake Bay, MD 45 mi128 min ENE 5.1 47°F 1024 hPa45°F
PPTM2 - 8578240 - Piney Point, MD 50 mi50 min ESE 11 G 13

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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SE4
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SE4
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G8
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G11
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stafford, Stafford Regional Airport, VA3 mi43 minE 85.00 miFog/Mist49°F48°F97%1024.7 hPa
Quantico Marine Corps Airfield - Turner Field, VA9 mi42 minE 710.00 miOvercast51°F48°F89%1023.9 hPa
Fredericksburg, Shannon Airport, VA10 mi43 minNE 410.00 miOvercast51°F48°F90%1023 hPa
Warrenton-Fauquier Airport, VA20 mi43 minE 310.00 miOvercast51°F44°F79%1023 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA22 mi42 minE 69.00 miOvercast49°F45°F86%1024.7 hPa

Wind History from RMN (wind in knots)
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Last 24hrS3S3CalmS3SE3NE7NE7E7NE9NE8NE5E9E6E9E7NE5NE6E9E10E8E8E9NE7E4
1 day agoSW8
G15
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G15
SW7SW7SW4SW5SW5SW4S3SW3SW5SW6SW5SW6SW6S5CalmW5SW8SW3SW5SW5S4S5
2 days agoSE3CalmSE4CalmS3S4S4S4S5SE5SE5S4S3S7SW6S6S11
G23
SW13
G19
S13
G20
S9
G15
SW8
G16
SW7S6SW7

Tide / Current Tables for Aquia Creek, Virginia
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Aquia Creek
Click for Map
Sun -- 05:21 AM EDT     1.33 feet High Tide
Sun -- 06:18 AM EDT     Moonrise
Sun -- 07:03 AM EDT     Sunrise
Sun -- 11:55 AM EDT     -0.05 feet Low Tide
Sun -- 05:45 PM EDT     1.27 feet High Tide
Sun -- 06:01 PM EDT     Moonset
Sun -- 07:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
00.30.711.21.31.31.10.80.60.30.1-0.10.10.50.811.21.31.10.90.60.40.2

Tide / Current Tables for Clifton Beach, Potomac River, Maryland
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Clifton Beach
Click for Map
Sun -- 05:28 AM EDT     1.29 feet High Tide
Sun -- 06:18 AM EDT     Moonrise
Sun -- 07:02 AM EDT     Sunrise
Sun -- 11:52 AM EDT     0.06 feet Low Tide
Sun -- 05:50 PM EDT     1.30 feet High Tide
Sun -- 06:01 PM EDT     Moonset
Sun -- 07:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.30.60.91.21.31.31.10.80.50.30.10.10.20.40.81.11.31.31.20.90.60.40.2

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.