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Marine Weather and Tides Woodstock, VA Version 3.4

NOTICE 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 7:23AM

Sunset 4:52PM

Sunday December 15, 2019 12:20 AM EST (05:20 UTC)

Moonrise 8:33PM

Moonset 10:29AM

Illumination 88%

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.

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7 Day Forecast for Marine Location Near Woodstock, VA

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Area Discussion for - Baltimore, MD/Washington

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FXUS61 KLWX 150130 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 830 PM EST Sat Dec 14 2019

SYNOPSIS. Low pressure will continue to move away from the region tonight. High pressure will briefly build overhead for Sunday before low pressure impacts the area Monday. The cold front associated with this low will pass through Tuesday. Canadian high pressure will build overhead for Wednesday through Thursday.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. An upper-level trough will continue to lift northeast away from the area tonight while high pressure builds over the northern Plains. Surface low pressure associated with the upper-level trough will strengthen as it heads into southeastern Canada. A westerly flow between the low and the high over the northern Plains will usher in drier conditions for most areas, but it will be blustery this evening. Winds should diminish a little in the valleys overnight due to a weak nocturnal inversion.

An upslope component to the low-level wind along with cold advection will produce upslope snow showers along and west of the Allegheny Front. Accumulating snow is expected and the accumulations will be close to advisory levels. Have decided against an advisory since SLR's will be unfavorable and instability is limited underneath the subsidence inversion. Having that been said, snow covered and slippery roads are likely for elevations above 2000 feet along/west of the Allegheny Front.

Min temps will be in the mid to upper 30s for most areas, with 20s on the ridges.

SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY NIGHT/. Gusty NW winds Sunday with highs in the 40s with plenty of sunshine in the afternoon. Warm frontal precip associated with next storm system organizing over the mid MS valley will move into western areas after 03Z Mon and spread quickly ewd across the rest of the area after midnight Sun night. With 850 mb low tracking NW of the area, any snow will be brief with a quick transition to mixed p-type early Monday through midday before transitioning to rain for most areas in the afternoon. The best chance for accumulating snow will be northwest of Interstate 95. This will likely impact the morning commute for Monday.

Without a cold sfc high to the north to keep the cold air in place, any mixed p-type is also likely to be brief and light with only trace or light amounts of ice expected. The one exception may be near the Mason-Dixon Line and across the Allegheny and Potomac Highlands. A layer of cold air may be tough to scour out due to light winds underneath the subsidence inversion. Did allow for some more freezing rain across these areas.

Rain/showers will continue off and on through Tue until frontal passage late Tue. Given the expected wintry mix and potential for hazardous travel conditions Monday morning, winter weather advisories are likely to be required for NW parts of the fcst area.

LONG TERM /TUESDAY THROUGH SATURDAY/. Low pressure and its associated cold front will be moving across our area early on Tuesday as mid/upper level trough pushes east into the eastern CONUS. There may be precipitation lingering behind the front, and depending on how fast cold air advects into our region, we may have a change from rain to snow. However there is still uncertainty on this.

Precipitation will be ending later on Tuesday and high pressure will be building into our region on Tuesday night. Snow showers west of the Allegheny Front may remain into Wednesday with dry conditions over the rest of our CWA. High pressure will remain in control through the end of the week.

AVIATION /01Z SUNDAY THROUGH THURSDAY/. Gusty west to northwest winds will turn west to southwest after midnight and they may diminish a bit due to weak nocturnal inversion. However, more gusty west to northwest winds are expected later Sunday morning through Sunday afternoon. Winds relax Sun night and Monday and pick up again Mon night or Tuesday with gusts up to 25-30kt possible. Rain is expected again late Sun night through Monday with snow possible at KMRB for a brief period Monday morning.

Sub-VFR conditions possible on Tuesday with cold front moving through. VFR conditions behind it as high pressure takes over through the end of the week.

MARINE. West to northwest winds will continue through Sunday with gusts around 20 to 25 knots expected. There should be a lull in the gusts overnight into Sunday morning across the upper Tidal Potomac River. Winds relax by early Sun evening. Winds remain below 10 kt Sun night and Mon and increase again Mon night with potential for gales Tuesday.

SCA may be needed Tuesday as cold front moves through, then behind the front on Wednesday. Winds should be on the decrease into Thursday.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . Coastal Flood Advisory until 9 PM EST this evening for MDZ014. VA . None. WV . None. MARINE . Small Craft Advisory until 4 PM EST Sunday for ANZ530>533- 538>542. Small Craft Advisory until 2 PM EST Sunday for ANZ534-537-543. Small Craft Advisory until 1 AM EST Sunday for ANZ535-536. Small Craft Advisory from 10 AM to 2 PM EST Sunday for ANZ535- 536.

SYNOPSIS . LFR NEAR TERM . BJL/LFR SHORT TERM . LFR/BJL LONG TERM . IMR AVIATION . BJL/IMR/LFR MARINE . BJL/IMR/LFR

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
WASD2 - 8594900 - Washington, DC	86 mi	51 min	WNW 7 G 18	46°F	43°F		1004.5 hPa

Wind History for Washington, DC

(wind in knots)    EDIT      (on/off)   Help

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Last 24hr

NW4 G8

W2

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NW3 G7

NW5 G9

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W3

W1

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W3 G6

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NW10 G19

NW11 G19

NW7 G17

NW14 G22

NW11 G15

NW11 G17

W5 G9

1 day ago

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N4 G8

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NE3 G7

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NW3 G6

NW2 G5

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N8 G12

N3 G8

NE2 G5

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NE1 G4

E3 G7

S3 G6

SE4

S2 G5

W1 G4

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SE4 G7

E4 G8

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure

Link to 5 minute data for KW45

Wind History from W45 (wind in knots)

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N5

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NW16 G24

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N3

Calm

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SW5

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E4

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NW8

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N7 G14

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N10 G14

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Tide / Current Tables for Aquia Creek, Virginia

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Tide / Current Tables for Fredericksburg, Rappahannock River, Virginia

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Weather Map

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GEOS 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

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Wind Forecast for Baltimore, MD/Washington (0,6,7,8)

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Ground Weather Radar Station Sterling, VA

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