Saturday, November17, 2018 L-36.com


Marine Weather and Tides
Stanardsville, 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 6:56AMSunset 5:01PM Saturday November 17, 2018 1:59 PM EST (18:59 UTC) Moonrise 2:19PMMoonset 12:57AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
ANZ536 Tidal Potomac From Indian Head To Cobb Island- 1237 Pm Est Sat Nov 17 2018
This afternoon..NW winds 5 kt. Waves less than 1 ft.
Tonight..NE winds around 5 kt. Waves 1 ft.
Sun..SE winds around 5 kt. Waves 1 ft.
Sun night..S winds around 5 kt. Waves flat.
Mon..W winds around 5 kt. Waves 1 ft.
Mon night..N winds around 5 kt. Waves 1 ft.
Tue..NW winds 5 to 10 kt. Waves 1 ft.
Wed..W winds 5 kt. Waves less than 1 ft.
ANZ500 1237 Pm Est Sat Nov 17 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain overhead through tonight before shifting offshore on Sunday. SEveral waves of low pressure and their associated fronts will move near the waters through the middle of next week.


7 Day Forecast for Marine Location Near Stanardsville, VA
   Hourly   EDIT   Help
location: 38.31, -78.4     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 klwx 171452
afdlwx
area forecast discussion
national weather service baltimore md washington dc
952 am est Sat nov 17 2018

Synopsis
High pressure over the ohio valley will build over the region
this weekend. The high will shift to the north and then migrate
offshore Sunday night. An area of low pressure will near the
ohio valley on Monday, lifting a warm front through the area.

Another area of low pressure will cross the great lakes Monday
night, dragging a cold front through the region on Tuesday. High
pressure will build back into the region the middle of next
week before another cold front crosses the region by Thursday.

Near term through tonight
Still seeing some strato-cumulus trapped under the subsidence
inversion in the northwest flow this morning from roughly i-66
northward. This will continue to gradually thin and break up
heading into the afternoon hours, but portions of eastern WV and
northern western md may be stuck in some clouds for much of the
day. Highs will range from the mid 40s where clouds linger to
low 50s in sun.

This break in the clouds later today will however be shortlived
as additional cloud cover will be on the increase again tonight
ahead of the next system nearing the ohio valley and waa
commencing aloft. Overnight lows in the upper 20s to middle
30s.

Short term Sunday through Monday night
A weak area of low pressure and associated frontal boundary
will approach the ohio valley on Sunday, residing just to our
west. This will aid in keeping a fair amount of cloud cover
around on Sunday with highs very similar to today. The latest
guidance keeps moisture at bay until late Sunday night, and we
have kept the highest precip chances along the allegheny front
and near the mason dixon line Sunday night, but remains in the
chance category. The colder locales could see some snowflakes
mix in with any rain showers, however moisture will remain very
limited. Lows Sunday night in the 30s to near 40 degrees in
cities.

The aforementioned area of low pressure will lift a warm
frontal boundary into our area on Monday, allowing temperatures
to warm to near seasonable levels, upper 40s to the north and
upper 50s to the south. This boundary will linger near the mason
dixon on Monday, with the best odds at rain showers remaining
west of the blue ridge. Better chances at precipitation further
east will exists Monday night as the broad area of low pressure
crosses the area. Moisture will again be limited and
temperatures aloft favor the liquid variety east of the blue
ridge, with a rain snow mix possible along and west of there.

Long term Tuesday through Friday
The long term is relatively quiet. Cold front will be pushing
southeast of the region on Tuesday, with upslope snow showers
along the allegany front but little if any precip further east.

Cooler air behind the front will hold temps below normal.

High pressure will briefly build into the region Wednesday, with
dry conditions cwa-wide expected. Temps will remain below
normal.

Another cold front looks to cross the region Wednesday night
into Thursday. This front looks starved for moisture so
expecting little if any precip with it, even in the favorable
upslope regions. Temps will drop even further, with temps
struggling to reach the 40s.

High pressure from canada then builds directly overhead for
Friday. Dry weather with sunshine should allow temps to rebound
a bit, but remaining below normal.

Aviation 15z Saturday through Wednesday
MVFR CIGS will impact mrb this morning and possibly even
lingering into the afternoon hours with persistent northwest
flow strato-cumulus.VFR conditions forecast for the remaining
terminals today tonight as high pressure builds over the
terminal with light winds. Clouds will be on the increase again
tonight ahead of the next approaching system, with potential for
MVFR, especially at mrb iad cho.VFR conditions Sunday and
Monday at all terminals with precipitation chances increasing
Monday night as a weak area of low pressure crosses the area.

Vfr are expected through the long term period. Main issues will
just be periods of gusty winds with passing cold fronts, which
look mostly dry at this point.

Marine
Sca conditions expected this morning along the main stem of the
bay and lower tidal potomac. With high pressure building into
the region through Sunday, winds will trend lighter and sub sca
beginning this afternoon. Gradient remains weak over the waters
Monday and Monday night as weak low pressure approaches from the
west.

Sca conditions will be possible Tuesday as a cold front departs
the region. Winds probably diminish Wednesday.

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. 58.58 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. 63.18 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. 59.17 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... None.

Wv... None.

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

Synopsis... Bkf rcm
near term... Mm bkf
short term... Bkf
long term... Rcm
aviation... Mm bkf rcm
marine... Mm bkf rcm
climate... Lwx


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 83 mi41 min NW 5.1 G 7 49°F 46°F1024.6 hPa
BSLM2 - Chesapeake Bay, MD 95 mi149 min WNW 5.1 45°F 1026 hPa31°F

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last
24hr
NW9
G12
W7
G12
W5
G9
NW3
NW5
W5
NW6
G11
NW8
G16
W12
G18
NW11
G18
NW8
G14
NW8
G12
NW6
G14
NW4
G11
NW5
NW4
G8
NW4
G7
NW6
G10
NW6
N4
G9
NW10
G14
NW6
G12
NW5
G9
W5
G8
1 day
ago
N4
G11
N6
G15
N6
G11
NE5
G12
NE4
G12
N7
G12
NE8
G16
N6
G10
N4
G10
N5
G9
NW10
G16
NW11
G18
NW13
G21
NW8
G14
W10
G13
NW4
G7
W3
W4
G9
NW5
G10
NW14
G18
W9
G16
NW12
G16
W11
G14
NW10
G16
2 days
ago
NW5
G10
N7
N4
G8
N4
N3
G7
NE2
G6
N3
NE3
G6
NE2
G6
NE3
G7
NE3
G7
NE4
G8
E3
G7
NE3
G6
NE4
E5
G11
E3
G6
N3
NE4
G10
NE4
G7
NE1
G8
NE3
NE4
G10
NE3
G9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charlottesville-Albemarle Airport, VA12 mi66 minS 410.00 miFair53°F33°F47%1023.8 hPa
Orange, Orange County Airport, VA19 mi64 minN 010.00 miFair50°F32°F50%1024 hPa
Staunton / Shenandoah, VA24 mi84 minN 010.00 miFair47°F33°F59%1024.4 hPa

Wind History from CHO (wind in knots)
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last 24hrW12W1355S3SW3SW3CalmCalmCalmW3CalmCalmCalmCalmCalmW3CalmCalmCalmCalm43S4
1 day ago--N11N14NE13NE15N10N53CalmNW533SW45CalmW7S6Calm36SW8SW7SW7--
2 days agoNE4E4E6NE5NE5NE4CalmNE3NE4NE5CalmNE5NE8NE8NE7NE6N7NE11N8NE12NE13
G18
N13
G21
NE13NE14

Tide / Current Tables for Fredericksburg, Rappahannock River, Virginia
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Fredericksburg
Click for Map
Sat -- 12:53 AM EST     Moonset
Sat -- 02:08 AM EST     2.68 feet High Tide
Sat -- 06:53 AM EST     Sunrise
Sat -- 08:54 AM EST     0.28 feet Low Tide
Sat -- 02:14 PM EST     Moonrise
Sat -- 02:44 PM EST     2.66 feet High Tide
Sat -- 04:55 PM EST     Sunset
Sat -- 09:17 PM EST     0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.22.52.72.62.21.61.10.60.40.30.51.11.82.32.62.72.41.91.40.80.50.40.40.9

Tide / Current Tables for Massaponax, Rappahannock River, Virginia
   EDIT      (on/off)   Help   One Week of Data
Massaponax
Click for Map
Sat -- 12:53 AM EST     Moonset
Sat -- 01:59 AM EST     2.34 feet High Tide
Sat -- 06:53 AM EST     Sunrise
Sat -- 09:10 AM EST     0.24 feet Low Tide
Sat -- 02:14 PM EST     Moonrise
Sat -- 02:35 PM EST     2.33 feet High Tide
Sat -- 04:55 PM EST     Sunset
Sat -- 09:33 PM EST     0.30 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.92.22.32.21.91.410.60.40.20.40.91.522.32.32.11.71.20.80.50.30.30.7

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (13,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Sterling, VA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.