Friday, March24, 2017 L-36.com


Marine Weather and Tides
Colonial Beach, 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 7:01AMSunset 7:25PM Friday March 24, 2017 8:00 PM EDT (00:00 UTC) Moonrise 4:00AMMoonset 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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ANZ536 Tidal Potomac From Indian Head To Cobb Island- 758 Pm Edt Fri Mar 24 2017
Tonight..SW winds 5 to 10 kt. Waves 1 to 2 ft.
Sat..SW winds 5 to 10 kt. Waves 1 ft.
Sat night..S winds 5 kt. Waves less than 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..S winds 5 kt. Waves less than 1 ft.
Tue..W winds 5 kt. Waves less than 1 ft. A chance of showers.
Wed..N winds 5 to 10 kt. Waves 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 Colonial Beach, VA
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location: 38.25, -76.96     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
NCDV2 6 mi43 min SSW 9.9 G 13 65°F 45°F1021.7 hPa
PPTM2 - 8578240 - Piney Point, MD 24 mi43 min SW 7 G 8
SLIM2 - 8577330 - Solomons Island, MD 27 mi43 min SW 8.9 G 14 62°F 45°F
LWTV2 - 8635750 - Lewisetta, VA 32 mi43 min WSW 11 G 16 65°F 48°F1022.6 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 32 mi43 min SW 13 G 17 64°F 1022.7 hPa
44062 - Gooses Reef, MD 36 mi31 min SSE 7.8 G 7.8 49°F 1022.4 hPa
44042 - Potomac, MD 36 mi31 min WSW 7.8 G 9.7 56°F 1022.1 hPa
BSLM2 - Chesapeake Bay, MD 39 mi151 min SSW 8.9 62°F 1023 hPa35°F
WASD2 - 8594900 - Washington, DC 43 mi43 min S 5.1 G 7 57°F 46°F1021.2 hPa
BISM2 - 8571421 - Bishops Head, MD 49 mi43 min S 9.9 G 11 51°F 49°F1023.2 hPa

Wind History for Piney Point, MD
(wind in knots)    EDIT      (on/off)   Help
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N20
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Marys County Airport, MD22 mi80 minSSW 8 G 1410.00 miFair63°F39°F42%1023 hPa

Wind History from 2W6 (wind in knots)
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Last 24hrSE3SE4CalmCalmCalmCalmS3S5S5S4S4S5S4SW7SW6SW11
G15
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1 day agoNW3N3CalmCalmNE3CalmNE4CalmE3CalmCalmNE3NE3E4NE4N5E6S3NE3S4SE4NE5SE4SE4
2 days agoCalmCalmCalmCalmW3CalmW4NW3W7CalmNW3NW5NW9
G15
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Tide / Current Tables for Colonial Beach, Potomac River, Virginia
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Colonial Beach
Click for Map
Fri -- 12:12 AM EDT     1.46 feet High Tide
Fri -- 05:00 AM EDT     Moonrise
Fri -- 06:34 AM EDT     0.09 feet Low Tide
Fri -- 07:04 AM EDT     Sunrise
Fri -- 12:38 PM EDT     1.60 feet High Tide
Fri -- 03:51 PM EDT     Moonset
Fri -- 07:06 PM EDT     0.06 feet Low Tide
Fri -- 07:23 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.41.20.90.60.30.10.10.30.611.31.61.61.41.10.80.40.20.10.10.40.81.2

Tide / Current Tables for Broomes Island, 0.4 mile south of, Maryland Current
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Broomes Island
Click for MapFlood direction 290 true
Ebb direction 110 true

Fri -- 01:23 AM EDT     -0.00 knots Slack
Fri -- 04:20 AM EDT     -0.36 knots Max Ebb
Fri -- 04:58 AM EDT     Moonrise
Fri -- 07:03 AM EDT     Sunrise
Fri -- 07:09 AM EDT     0.00 knots Slack
Fri -- 10:20 AM EDT     0.43 knots Max Flood
Fri -- 01:49 PM EDT     -0.00 knots Slack
Fri -- 03:49 PM EDT     Moonset
Fri -- 05:03 PM EDT     -0.52 knots Max Ebb
Fri -- 07:22 PM EDT     Sunset
Fri -- 08:24 PM EDT     0.00 knots Slack
Fri -- 11:00 PM EDT     0.33 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.1-0.1-0.3-0.4-0.3-0.2-00.20.30.40.40.30.2-0-0.3-0.5-0.5-0.5-0.3-0.10.10.30.3

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.