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Marine Weather and Tides Kings Park, VA Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 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.

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Sunrise 7:22AM

Sunset 5:16PM

Sunday January 19, 2020 10:30 AM EST (15:30 UTC)

Moonrise 2:24AM

Moonset 1:03PM

Illumination 31%

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 Kings Park, VA

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Area Discussion for - Baltimore, MD/Washington

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FXUS61 KLWX 191514 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1014 AM EST Sun Jan 19 2020

SYNOPSIS. An expansive area of high pressure will translate eastward from the northern Plains over the next few days, becoming centered overhead by Wednesday. High pressure will move offshore during the second half of the week, then low pressure will approach from the central United States.

NEAR TERM /THROUGH TONIGHT/. Low pressure will move eastward today exiting northern New England by this afternoon, and cold front has cleared the region. Daytime highs today will be warmer than yesterday despite cold air advection aloft due to more sunshine and downsloping effects. Highs in the upper 30s to mid 40s are expected east of the mountains, with 20s and 30s for the higher terrain. Given the low-level wind trajectories and a ribbon of vorticity aloft, scattered snow showers are likely over the Allegheny at times, particularly this afternoon. A few flurries could hop east of the mountains into the I-81 corridor this afternoon as inversion heights briefly rise above the ridge line, but a lack of stronger upper forcing or very steep lapse rates in the low levels should preclude any more substantial snow shower activity east of the higher terrain today.

A secondary push of cold, dry air will make its way into the Mid-Atlantic tonight. A few flurries or snow showers are possible near the higher terrain, but drier air will overwhelm the column, so accumulations should be minimal. Low temperatures are expected to drop into the teens and lower 20s tonight as the colder air mass pushes in, and with the steady northwest wind, wind chills likely bottom out in the single digits and teens late tonight into early Monday morning. The higher terrain along the Allegheny Front (generally above 3000 feet elevation) will see lower wind chills dipping as low as -10 F or even a pinch lower, but the brevity and localized nature of the threat precluded the issuance of a Wind Chill Advisory on this shift.

SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/. Breezy and cold conditions continue Monday with highs only in the lower to perhaps briefly middle 30s expected for much of the area (colder in the higher elevations). The good news is that while winds will not be calm by any means, they will become relatively lighter, especially late Monday into Tuesday, taking a bit of a bite out of the wind chills.

Dry air and subsidence associated with building high pressure will lead to nil precipitation chances and very little cloud cover Monday through Tuesday.

LONG TERM /WEDNESDAY THROUGH SATURDAY/. Nearly vertically stacked ridging will move overhead Wednesday and edge east Thursday, so dry weather can be expected. Daytime temperatures will begin moderating back above normal, although overnight lows will remain chilly (teens/20s) due to favorable radiational cooling.

Low pressure will be developing in the central Plains Friday ahead of a digging upper level trough. There's a small chance some precipitation in the warm advection ahead of this system could sneak in late Friday, but the more likely scenario at this time is a Friday night-Saturday period for most of the precipitation as the surface low moves toward the Great Lakes. There is a low probability some of the western valleys could see some wintry precipitation at the onset, but a warming column and lack of classic cold air damming signature greatly deter these chances. Guidance does seem to be trending more toward a closed low solution that could pass overhead later Saturday. This could lead to greater chances of snow in the Appalachians depending on the system evolution, although confidence is very low given the Day-7 timeframe.

AVIATION /15Z SUNDAY THROUGH THURSDAY/. VFR for all terminals. NW flow 15G25kts. SCT- BKN FL050 today into tonight. A flurry can't be ruled out near MRB this afternoon, but no restrictions are anticipated.

Gusts likely subside a bit and become more occasional overnight, before the aforementioned secondary front drops through after 09Z. Winds may take on a bit more of a northerly component Monday morning as they increase in the wake of the front and as diurnal mixing increases. Gusts in excess of 25 kts are possible Monday into Tuesday, but with VFR conditions expected.

VFR conditions and light winds are then expected with high pressure Wednesday into Thursday.

MARINE. Gusty northwest winds in the wake of low pressure departing the northeastern U.S. will persist right through Tuesday. A Small Craft Advisory includes all waters through midnight tonight before the more sheltered waters drop out of the advisory. There will be a secondary push of gusty winds at daybreak Monday, then some subsidence in the afternoon.

Gusts in excess of 20 knots will likely linger into Tuesday before high pressure builds overhead causing winds to become lighter. Light winds are expected Wednesday and Thursday as high pressure continues to build overhead.

TIDES/COASTAL FLOODING. South-southwest winds have piled up water in the northern half of the Chesapeake Bay with anomalies exceeding 2 feet from Annapolis northward. A cold front has shifted winds this morning, but they will be westerly until veering some tonight. Thus would not expect a sharp drop in water levels, and places like Straits Point and Annapolis could hit at least caution stage again with the upcoming high tide.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory until 6 PM EST Monday for ANZ530>534- 537>543. Small Craft Advisory until midnight EST tonight for ANZ535-536. Small Craft Advisory from 6 AM to noon EST Monday for ANZ535- 536.

SYNOPSIS . DHOF/RCM NEAR TERM . DHOF/RCM SHORT TERM . DHOF LONG TERM . ADS AVIATION . ADS/DHOF/RCM MARINE . ADS/DHOF/RCM TIDES/COASTAL FLOODING . ADS

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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	14 mi	43 min	NW 9.9 G 13	43°F	43°F		1011.9 hPa
BSLM2 - Chesapeake Bay, MD	30 mi	121 min	NW 5.1				1009 hPa
NCDV2	35 mi	49 min	NW 7 G 12	48°F	45°F		1010 hPa
APAM2 - 8575512 - Annapolis, MD	44 mi	43 min		43°F			1010 hPa
TPLM2 - Thomas Point, MD	45 mi	31 min	WNW 17 G 19	43°F	42°F		1011.7 hPa (+2.4)	27°F
BLTM2 - 8574680 - Baltimore, MD	49 mi	49 min	NNW 15 G 22	43°F	42°F		1010.2 hPa
CPVM2	49 mi	49 min		43°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD	49 mi	43 min	WNW 25 G 29	42°F			1010.1 hPa
FSNM2	49 mi	55 min	WNW 27 G 35

Wind History for Washington, DC

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

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Last 24hr

S10

S10

SE7

S9

S8 G12

S10 G15

S9 G13

S14 G17

S9 G17

S10 G16

S11 G15

S12 G15

S10 G13

S12 G17

SW9 G12

S8

NW2

SE1

NW4

N2

SE2

SW2 G5

NW12 G16

NW11 G19

1 day ago

N9 G17

N7 G15

N7 G14

NW6 G12

N4 G11

NW5

N4 G9

NW5 G8

NW6

NW4 G7

N5 G8

E1

E2

NE3

E4

E3 G6

E2 G5

NE2 G5

E3

SE3 G7

SE7 G11

SE5 G9

S7

S7

2 days ago

NW12 G21

NW16 G24

NW13 G22

NW11 G20

NW12 G21

NW10 G17

NW17 G28

NW17 G23

NW11 G18

NW15 G23

NW9 G19

NW14 G22

NW14 G24

NW11 G19

NW9 G16

NW10 G19

N11 G19

NW11 G26

NW13 G24

NW8 G12

NW9 G17

NW5 G14

NW10 G16

NW9 G17

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Fort Belvoir, VA	7 mi	95 min	NW 12	10.00 mi	Fair	42°F	34°F	76%	1011.1 hPa
Washington/Reagan National Airport, DC, VA	13 mi	99 min	NW 7	10.00 mi	Mostly Cloudy	43°F	30°F	63%	1010.6 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA	14 mi	95 min	NNW 13	10.00 mi	Fair	40°F	32°F	73%	1011.3 hPa
Washington/Dulles International Airport, DC, VA	15 mi	99 min	NW 15	10.00 mi	Mostly Cloudy	40°F	28°F	63%	1010.8 hPa
Quantico Marine Corps Airfield - Turner Field, VA	20 mi	95 min	Var 3	10.00 mi	Fair	43°F	0°F	%	1011 hPa
Camp Springs / Andrews Air Force Base, MD	21 mi	95 min	NW 11	10.00 mi	Fair	42°F	32°F	70%	1010.7 hPa
College Park Airport, MD	22 mi	1.7 hrs	NW 11 G 19	10.00 mi	Fair	41°F	27°F	59%	1009.8 hPa

Link to 5 minute data for KDAA

Wind History from DAA (wind in knots)

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Last 24hr

SE7

SE5

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SE6

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S4

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S6

SW5

S5

S7

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S5

S5

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Calm

S4

Calm

Calm

Calm

NW12

1 day ago

NW16 G21

NW10 G19

NW10 G16

N8 G18

NW9

NW6

N7

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NW5

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

SE3

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SE3

2 days ago

NW19 G33

NW20 G25

NW19 G32

NW25 G33

NW14 G27

NW25 G33

NW10 G18

NW16 G27

NW22 G30

NW15 G32

NW15 G22

NW15 G21

NW9

NW9

NW9

NW12 G18

NW16 G22

NW15 G21

NW15 G24

W15 G21

NW15 G25

NW14 G24

NW13 G22

NW13 G21

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Tide / Current Tables for Marshall Hall, Potomac River, Maryland

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Tide / Current Tables for Chain Bridge, one mile below, Washington, D.C.

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Weather Map

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GEOS 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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for Baltimore, MD/Washington (10,2,3,4)

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Ground Weather Radar Station Sterling, VA

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