Friday, November16, 2018 L-36.com


Marine Weather and Tides
Huntington, VA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:51AMSunset 4:54PM Friday November 16, 2018 11:54 AM EST (16:54 UTC) Moonrise 1:44PMMoonset 12:00AM Illumination 62% Phase: Waxing Gibbous; Moon at 9 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- 936 Am Est Fri Nov 16 2018
.small craft advisory in effect until 6 pm est this evening...
Rest of today..W winds 10 to 15 kt. Gusts up to 25 kt late this morning and early afternoon. Waves 1 ft.
Tonight..W winds 5 to 10 kt. Waves 1 ft.
Sat..W winds 5 to 10 kt. Waves 1 ft.
Sat night..NE winds 5 kt. Waves less than 1 ft.
Sun..SE winds 5 kt. Waves less than 1 ft.
Sun night..SW winds 5 kt. Waves less than 1 ft.
Mon..N winds around 5 kt. Waves 1 ft.
Tue..N winds around 5 kt. Waves 1 ft.
ANZ500 936 Am Est Fri Nov 16 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure will move off to the northeast today. High pressure will build in from the ohio valley today through Saturday. High pressure will move offshore Sunday and a weak cold front may pass through early next week.


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 161513
afdlwx
area forecast discussion
national weather service baltimore md washington dc
1013 am est Fri nov 16 2018

Synopsis
Low pressure will move northeast toward atlantic canada today.

High pressure will build in from the ohio valley over the
weekend. A cold front will likely approach from the great lakes
early next week.

Near term through tonight
Surface low pressure has moved to near CAPE cod this morning. A
second upper level trough is approaching the appalachians,
which could help keep broken cloud cover over the western ridges
and across the northern zones. Upslope flow will keep some snow
showers going on the ridges today, but accumulations will be
minimal. A gusty west to northwest wind will continue through
the day. Have extended the wind advisory until noon in
collaboration with neighboring offices since significant ice
accretion occurred on the ridges and winds could easily bring
trees down. Despite the wind, the return of some Sun plus temps
which will generally be 10-15 degrees warmer than yesterday will
make today seem like a huge change. The warmth and Sun will
also allow for plenty of melting. Highs will approach 50, though
the snow cover may prevent 50 from being reached in most of the
area.

Upslope flow weakens later today and tonight as high pressure
builds into west virginia. Winds will diminish as well, so
radiational cooling should allow most of the area to fall back
down to freezing or below. This could result in icy patches
given the melting which will be occurring today. There could
also be some lingering moisture trapped on the ridges, which
could result in some patchy high elevation freezing drizzle.

Otherwise, the weather tonight should be benign.

Short term Saturday through Saturday night
High pressure lingers over the region Saturday into early Sunday
as a weak cold front approaches from the northwest. This front
will take its time, but clouds will start to increase Saturday
night, and a few showers may enter the region Sunday. However,
the best chance of any precip is Sunday night, and those odds
will be highest in western maryland. In that area, the rain
showers could mix with snow, but elsewhere, whatever falls will
likely be just rain. With winds becoming more west to southwest
and continued snow melt, temps should gradually rise, with 50
becoming more likely by Sunday.

Long term Sunday through Thursday
A weak cold front is progged to move through the area on
Monday. However, given that upper level forcing, in the form of
an upper level shortwave trough, seems to remain displaced well
to the north and west of the cold front. This will lead to very
little, if any, precipitation across the region. Thinking that
the only places that see precipitation from this system are the
upslope-prone areas in the higher elevations. This front won't
even really bring a dramatic shift in temperatures, with highs
remaining in the upper 40 low 50s.

By Tuesday, expecting high pressure to return to the region,
bringing continued dry weather. However, there is a non-zero
chance for another low pressure system to affect the region late
Tuesday. This appears to be an outlier solution at this time,
but will leave slight chance pops for highest elevations at this
time to account for this possibility. High pressure remains
anchored over the region through Wednesday as well. High
temperatures on both days will struggle to reach the mid 40s.

By thanksgiving day, high pressure shifts offshore, bringing a
return to southwest flow to the region. So, temperatures should
warm into the low 50s for thanksgiving, with continued dry
weather across the region.

Aviation 15z Friday through Tuesday
Conditions areVFR at the moment, though CIGS may fill in from
time to time at mrb at MVFR levels. The main issue today will be
west to northwest winds with peak gusts of 20-30 knots. Winds
diminish tonight through Sunday with continuedVFR.

Vfr conditions are expected across all terminals in the long
term period.

Marine
Low pressure pulling away from the region will leave gusty winds
in its place. Have cancelled the gale warning, although some
gusts to 30 kt remain possible today. SCA conditions should
last into this evening. Winds should diminish Saturday as high
pressure builds overhead.

Winds are generally expected to remain below SCA criteria on
Monday and most of Tuesday. Some gusty winds are possible
Tuesday night, but again, look to remain below SCA criteria at
this time.

Climate
Here are the current rankings for wettest year on record
(through november 15th):
washington dc area (dca)
1. 61.33 inches (1889)
2. 60.83 inches (2003)
3. 60.09 inches (1878)
4. 58.53 inches (2018)
5. 58.17 inches (1886)
weather records for the washington dc area have been kept at
what is now ronald reagan washington national airport (dca)
since 1945. Precipitation records observed downtown extend the
period of record back to 1871.

Baltimore md area (bwi)
1. 63.01 inches (2018)
2. 62.66 inches (2003)
3. 62.35 inches (1889)
4. 58.98 inches (1979)
weather records for the baltimore md area have been kept at
what is now baltimore-washington international thurgood marshall
airport (bwi) since 1950. Precipitation records observed
downtown extend the period of record back to 1871.

Dulles va area (iad)
1. 65.67 inches (2003)
2. 59.15 inches (2018)
3. 59.05 inches (1972)
4. 58.09 inches (1996)
5. 55.43 inches (1979)
weather records have been kept at what is now washington dulles
international airport (iad) since 1960.

Note: all climate data are considered preliminary until
reviewed by the national centers for environmental information
(ncei).

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... Wind advisory until noon est today for vaz025-026-503-504-507-
508.

Wv... Wind advisory until noon est today for wvz505-506.

Marine... Small craft advisory until 6 am est Saturday for anz532-537-
540.

Small craft advisory until noon est Saturday for anz533-534-
541-543.

Small craft advisory until 6 pm est this evening for anz535-
536-542.

Small craft advisory until midnight est tonight for anz530-531-
538-539.

Synopsis... Rcm
near term... Ads rcm
short term... Rcm
long term... Cjl
aviation... Ads rcm cjl
marine... Ads rcm cjl
climate... Lwx


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 6 mi37 min W 11 G 16 46°F 47°F1012.9 hPa
BSLM2 - Chesapeake Bay, MD 19 mi145 min WNW 8 44°F 1011 hPa34°F
NCDV2 33 mi43 min WSW 8 G 12 48°F 47°F1012.6 hPa
TPLM2 - Thomas Point, MD 34 mi55 min W 14 G 16 44°F 50°F1012.9 hPa (+1.6)32°F
APAM2 - 8575512 - Annapolis, MD 34 mi37 min 46°F 1011.7 hPa
44063 - Annapolis 36 mi31 min WNW 12 G 16 45°F 51°F1012.6 hPa
44062 - Gooses Reef, MD 38 mi35 min 47°F 1013.2 hPa
CPVM2 39 mi37 min 47°F 33°F
FSNM2 41 mi37 min W 16 G 23 44°F 1011.1 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 41 mi37 min W 18 G 21 44°F 1011.5 hPa
BLTM2 - 8574680 - Baltimore, MD 42 mi43 min NNW 8 G 15 44°F 52°F1011.4 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 45 mi37 min NW 7 G 13 46°F 1013.1 hPa
SLIM2 - 8577330 - Solomons Island, MD 46 mi37 min W 8 G 14 47°F 53°F1012.6 hPa

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Washington/Reagan National Airport, DC, VA5 mi63 minNW 1310.00 miA Few Clouds48°F33°F56%1012.9 hPa
Fort Belvoir, VA7 mi59 minWNW 13 G 1710.00 miFair48°F36°F64%1013.2 hPa
Camp Springs / Andrews Air Force Base, MD11 mi59 minWNW 910.00 miA Few Clouds46°F32°F60%1012.7 hPa
College Park Airport, MD15 mi73 minW 12 G 2010.00 miFair44°F31°F63%1012.5 hPa
Quantico Marine Corps Airfield - Turner Field, VA23 mi59 minWNW 510.00 miFair49°F37°F66%1013.7 hPa
Washington/Dulles International Airport, DC, VA23 mi63 minWNW 910.00 miA Few Clouds44°F33°F65%1013.2 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA24 mi59 minWNW 1110.00 miFair47°F35°F63%1014.4 hPa

Wind History from DCA (wind in knots)
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Last 24hrNE12NE16NE15NE18N16NE15
G22
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N11N13NW12NW12NW14
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NW8W9W7W7SW7NW6NW13
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1 day agoNW7NW7N10NW12N6N6NE9N7NE7NE10NE12NE10NE10NE10NE10E11NE8E10NE13NE10NE12NE14
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2 days agoNW11NW8NW14
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G18
N11N7NW7NW6W6W6N9N14N10NW10N10N9NW9N12N12NW12NW9NW10

Tide / Current Tables for Alexandria, Virginia
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Alexandria
Click for Map
Fri -- 02:07 AM EST     2.62 feet High Tide
Fri -- 06:51 AM EST     Sunrise
Fri -- 08:40 AM EST     0.33 feet Low Tide
Fri -- 01:43 PM EST     Moonrise
Fri -- 02:48 PM EST     2.52 feet High Tide
Fri -- 04:53 PM EST     Sunset
Fri -- 08:51 PM EST     0.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.22.52.62.52.11.610.60.40.30.61.11.82.22.52.52.31.81.20.70.50.40.51

Tide / Current Tables for Washington, Potomac River, D.C.
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
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Wind Forecast for Baltimore, MD/Washington (11,2,3,4)
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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.