Sunday, June24, 2018 L-36.com


Marine Weather and Tides
Huntington, VA

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 5:42AMSunset 8:38PM Sunday June 24, 2018 1:25 AM EDT (05:25 UTC) Moonrise 4:26PMMoonset 2:29AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 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- 1115 Pm Edt Sat Jun 23 2018
Rest of tonight..SW winds 5 kt. Waves less than 1 ft. A slight chance of showers. Patchy fog with vsby 1 to 3 nm.
Sun..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Sun night..NW winds 5 to 10 kt. Waves 1 ft.
Mon..NW winds 5 to 10 kt. Waves 1 ft.
Mon night..N winds 5 to 10 kt. Waves 1 ft.
Tue..E winds 5 kt. Waves less than 1 ft.
Tue night..SE winds 5 kt. Waves less than 1 ft. A chance of showers.
Wed..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Thu..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1115 Pm Edt Sat Jun 23 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure over the ohio valley will move into the eastern great lakes tonight. This low will continue moving eastward across new england Sunday bringing a cold front across the waters. High pressure will build in from the great lakes Monday and Tuesday.

7 Day Forecast for Marine Location Near Huntington, VA
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location: 38.79, -77.07     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 240314
afdlwx
area forecast discussion
national weather service baltimore md washington dc
1114 pm edt Sat jun 23 2018

Synopsis
Low pressure will press eastward from the eastern great lakes
overnight. A cold front associated with this low will drop
southward on Sunday, passing through region Sunday night.

Canadian high pressure will return through Tuesday before
migrating offshore during the middle portion of next week.

Near term through Sunday
Most of the CWA is now in the warm sector as the low level cool
air mass has mostly mixed out. Some decent cells fired earlier
but with the loss of insolation, what remains is rather weak and
should pass east of the region shortly. Lows tonight will range
in the middle 60s to near 70 degrees. Could see some scattered
occurrences of fog early Sunday morning with ground moisture
where precipitation occurs today, but coverage isn't expected to
be widespread. This will depend on cloud-cover, so areas that
clear significantly have the highest risk of seeing fog.

Short term Sunday night through Monday night
As the low moves eastward from the great lakes on Sunday, a cold
front will drop southward in to our region, but not likely
passing through the area until Sunday night. There will be a
weak shortwave trough passing to our north, and the best lift
looks to remain north of the mason dixon as well. Still think we
could see some shower and thunderstorm activity Sunday afternoon
as a result, triggered by diurnal heating. Highs on Sunday will
be quite warmer than today, extending in to the upper 80s to
near 90 degrees, and ample humidity in the air. Activity will
wane Sunday evening and that front will push through overnight
with little fan fare, just a subtle shift in the wind direction
towards Monday morning. Lows Sunday night again in the middle
60s to near 70 degrees in the cities.

Canadian high pressure will emerge on Monday, filtering in
cooler and drier conditions area wide. This will promote much
more comfortable temperature and humidity levels, with near
normal highs lows Monday and Monday night. Dewpoints will be on
the decline falling through the 60s during the day on Monday,
reaching the 50s overnight Monday. No threat of precipitation
Monday and Monday night.

Long term Tuesday through Saturday
Canadian high pressure continues to build into the region on
Tuesday, resulting in sunny skies and no rain. Northerly wind should
keep temperatures below average, with highs expected to be in the
low 80s. The humidity will also be much lower Tuesday.

High pressure shifts off the east coast on Wednesday, starting a
gradual warming trend for the rest of the week. With the flow
turning more southerly on Wednesday, more moisture will be advected
into the region, which should allow for some afternoon
thunderstorms. Additionally, a cold front associated with a canadian
low pressure system will move across the region Wednesday night into
Thursday morning. This will bring yet another chance for some
showers and thunderstorms in that period. High temperatures should
be back into the mid 80s.

Some lingering showers and storms will be possible on Thursday, as
the front continues to move out of the region. High temperatures
will approach 90, as this front doesn't appear to bring a large
temperature drop along with it.

The front appears to stall somewhere near the region on Friday, but
appears to be relatively weak. This could provide a focal point for
some thunderstorm development Friday afternoon as well, but
otherwise expecting a dry day. High temperatures will be into the
lower 90s.

Aviation 03z Sunday through Thursday
CurrentlyVFR overall with the last showers exiting stage
right. Areas that experienced showers storms earlier today will
see possible vis restrictions late tonight early Sunday due to
fog. Not expecting it to be widespread, and given low
predictability of areas that will see precipitation today, have
included generally MVFR vis restrictions for the time being.

PredominateVFR conditions forecast on Sunday, but there will
be the potential for more isolated showers storms in the
afternoon which could bring brief restrictions to the terminals.

A cold front will move through the terminals Sunday night,
ushering in a subtle wind shift to the west northwest. High
pressure takes hold on Monday, promotingVFR vis CIGS and drier
conditions.

With high pressure moving into the region Tuesday, expecting
vfr conditions to prevail. High pressure shifts off the east
coast Wednesday, bringing more moisture into the region and a
chance for thunderstorms. This could lead to sub-vfr conditions
for some terminals.

Marine
Showers that remain are weak and are exiting stage right, so no
further special marine warnings expected with light winds rest
of the night. A cold front will move through the waters late
Sunday, however winds are expected to remain below SCA criteria
into early next week as high pressure resides overhead through
Tuesday. However, as winds turn more southwesterly on Wednesday,
sca criteria gusts will be possible.

Hydrology
Excess water is currently draining into the mainstem rivers,
with five forecast points remain in flood. Please monitor these
warnings for particular details.

Additional rainfall tomorrow should be light and progressive
enough to prevent additional significant issues.

Note: relying on manual reports for the city dock in
fredericksburg va as data has be intermittent.

Tides coastal flooding
A coastal flood advisory is in effect for the dc southwest
waterfront, arlington county and the city of alexandria through
9am on Sunday. Tidal departures are running 1 to 2 feet above
normal, which will result in tidal flooding during the times of
high tide early Sunday morning. Tidal departures have been on
the decline today as winds shift to the south and southwest, but
they have been slower than expected. With calm winds overnight,
anomalies should hold steady, resulting in right around minor
flooding for straits point and annapolis.

Tidal anomalies will continue to further decrease through
Sunday in the wake of a cold front. Onshore flow will return
towards the middle of next week, increasing anomalies once
again.

Lwx watches warnings advisories
Dc... Coastal flood advisory until 9 am edt Sunday for dcz001.

Md... Coastal flood advisory until 6 am edt Sunday for mdz014.

Coastal flood advisory until 3 am edt Sunday for mdz017.

Va... Coastal flood advisory until 9 am edt Sunday for vaz054.

Wv... None.

Marine... None.

Synopsis... Bkf
near term... Bkf
short term... Bkf
long term... Cjl
aviation... Bkf cjl
marine... Bkf cjl
hydrology... Lwx
tides coastal flooding... Lwx


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 6 mi37 min WNW 1 G 1.9 1010.4 hPa
BSLM2 - Chesapeake Bay, MD 19 mi115 min SW 1.9 65°F 1010 hPa65°F
NCDV2 33 mi37 min SW 1.9 G 1.9 1009.4 hPa
TPLM2 - Thomas Point, MD 34 mi25 min NW 1 G 1.9 75°F 75°F1011 hPa (+0.7)74°F
APAM2 - 8575512 - Annapolis, MD 34 mi43 min 73°F 1009.6 hPa
44063 - Annapolis 36 mi25 min WNW 1.9 G 1.9 74°F 74°F1010.3 hPa (+0.5)
44062 - Gooses Reef, MD 38 mi25 min W 3.9 G 5.8 78°F 78°F1010.6 hPa (+0.7)
CPVM2 39 mi37 min 74°F 74°F
FSNM2 41 mi37 min SW 2.9 G 6 74°F 1009.8 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 41 mi37 min WSW 2.9 G 4.1 73°F 1009.7 hPa
BLTM2 - 8574680 - Baltimore, MD 42 mi43 min WNW 1.9 G 2.9 73°F 77°F1009.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 45 mi37 min SSW 2.9 G 2.9 75°F 1010.7 hPa
SLIM2 - 8577330 - Solomons Island, MD 46 mi43 min Calm G 1.9 74°F 78°F1009.9 hPa

Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Washington/Reagan National Airport, DC, VA5 mi33 minN 010.00 miPartly Cloudy73°F70°F90%1010.4 hPa
Fort Belvoir, VA7 mi89 minN 09.00 miFair70°F70°F100%1010.4 hPa
Camp Springs / Andrews Air Force Base, MD11 mi29 minN 010.00 miFair69°F68°F98%1011 hPa
College Park Airport, MD15 mi48 minN 07.00 miFair68°F67°F98%1010.2 hPa
Quantico Marine Corps Airfield - Turner Field, VA23 mi29 minW 410.00 miFair71°F71°F100%1010.7 hPa
Washington/Dulles International Airport, DC, VA23 mi33 minSSE 47.00 miA Few Clouds66°F66°F100%1010.2 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA24 mi29 minN 00.25 miFog67°F66°F100%1011.5 hPa

Wind History from DCA (wind in knots)
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Last 24hrN5N6NE6N5NE6N4N3NE5CalmNE3CalmS3SE4S65S5CalmS4SW3S4CalmNW5CalmCalm
1 day agoE5SE9E8E6NE7NE6E6NE7NE7E9E10E8E9E8
G21
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NE10N6NE12NE11NE9E11NE9NE6
2 days agoSW5SW3CalmS4SW4S3W4NW4E4N7N10NE10N10N9N10N8N9NE6E4E6E6E3E4SE6

Tide / Current Tables for Alexandria, Virginia
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Alexandria
Click for Map
Sun -- 12:02 AM EDT     0.26 feet Low Tide
Sun -- 03:28 AM EDT     Moonset
Sun -- 05:44 AM EDT     Sunrise
Sun -- 06:06 AM EDT     3.35 feet High Tide
Sun -- 12:53 PM EDT     0.20 feet Low Tide
Sun -- 05:26 PM EDT     Moonrise
Sun -- 06:35 PM EDT     2.87 feet High Tide
Sun -- 08:37 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.51.11.92.63.13.33.22.72.11.50.90.40.20.51.11.82.42.82.82.41.91.30.8

Tide / Current Tables for Washington, Potomac River, D.C.
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Washington
Click for Map
Sun -- 12:20 AM EDT     0.20 feet Low Tide
Sun -- 03:28 AM EDT     Moonset
Sun -- 05:43 AM EDT     Sunrise
Sun -- 06:00 AM EDT     3.37 feet High Tide
Sun -- 01:11 PM EDT     0.15 feet Low Tide
Sun -- 05:26 PM EDT     Moonrise
Sun -- 06:29 PM EDT     2.90 feet High Tide
Sun -- 08:37 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.30.91.82.63.23.43.22.72.11.510.50.20.311.82.42.82.82.51.91.30.8

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Mid-Atlantic    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



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Wind Forecast for Baltimore, MD/Washington (1,6,7,8)
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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.