Wednesday, December11, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Kings Park, 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

Sunrise 7:15AMSunset 4:48PM Wednesday December 11, 2019 11:10 AM EST (16:10 UTC) Moonrise 4:36PMMoonset 6:30AM Illumination 100% Phase: Full Moon; Moon at 15 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
ANZ535 Tidal Potomac From Key Bridge To Indian Head- 937 Am Est Wed Dec 11 2019
.small craft advisory in effect until 6 pm est this evening...
Rest of today..NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
Tonight..NW winds 5 to 10 kt. Waves 1 ft.
Thu..E winds 5 kt. Waves less than 1 ft.
Thu night..NE winds around 5 kt. Waves 1 ft or less.
Fri..NE winds around 5 kt. Waves 1 ft or less. Rain likely or a chance of freezing rain.
Fri night..N winds around 5 kt. Waves 1 ft. Rain.
Sat..W winds 5 to 10 kt. Waves 1 ft. Showers likely through the day, then a chance of showers through the night.
Sun..NW winds 5 to 10 kt. Waves 1 ft.
ANZ500 937 Am Est Wed Dec 11 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build across the region today through Thursday. Low pressure system developing over the northern gulf of mexico will move northeastward toward the region Friday into Saturday. Small craft advisories may be needed Saturday.


7 Day Forecast for Marine Location Near Kings Park, VA
   Hourly   EDIT   Help
location: 38.8, -77.27     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KLWX 111439 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 939 AM EST Wed Dec 11 2019

SYNOPSIS. Canadian high pressure will build across the region today through Thursday. A low pressure system will then develop in the Gulf of Mexico and push northward across the eastern United States Friday and Saturday, followed by another low pressure system that will approach the region Monday into Tuesday.

NEAR TERM /THROUGH THURSDAY/. The radar is now clear across the entire area, with the back edge of the cloud cover nearly out of the area as well. Any snow from this morning will quickly melt as mostly sunny skies are expected today due to Canadian high pressure pushing towards the area from the northwest. Highs today will be quite chilly, only reaching the upper 30s to low 40s. With gusty winds also present behind the front, wind chills will struggle to get above freezing for much of the area as well.

High pressure will continue to build across the region tonight into Thursday. The air mass is chilly, but not excessively or unusually cold for this time of year, with readings perhaps approaching 10 degrees below normal . a range which is quite normal this time of year. Lows tonight may reach the teens in the cold spots, so not even the coldest it has been so far this year. Highs on Thursday should be a little cooler (mid to upper 30s), with strong high pressure (~1040mb) set up to the northeast, which will continue to funnel cooler air into the region.

SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/. The Canadian high pressure will slide east off the coast Thursday night as low pressure develops along the Gulf Coast, then heads north. A wedge will remain, however, so cold air damming looks likely, especially Friday morning. Warm advection precip looks likely to overspread southwestern areas by mid- morning Friday, with the rest of the region likely seeing at least a bit of precip by day's end. The early arrival presents problems given the cold air mass in place, so freezing rain is a significant risk along the I-64 and I-81 corridors that we forecast for, stretching from Charlottesville to Staunton and perhaps as far north as Martinsburg. Further north and east, it appears more likely that temps will have a chance to rise above freezing before precip arrives, resulting in mostly or all plain rain. That all said, most precip Friday looks light, with the more significant rain moving in Friday night after temperatures are solidly above freezing (if only barely) across our entire area. Below freezing lows Thursday night will lead to highs in the 40s east of the mountains Friday, but 30s near I-81, with temps staying fairly steady Friday night with the rain.

LONG TERM /SATURDAY THROUGH TUESDAY/. Low pressure near the Delmarva Peninsula will lift northward into New England Saturday. Expect rain showers during the day. As an associated front makes its way to the East Coast by Saturday night, rain showers will taper to become more isolated. Some upslope rain or snow showers will develop in the Potomac Highlands in relation to the upper level low that is providing support to the departing surface low.

Upslope snow showers could linger in the Potomac Highlands on Sunday with a gusty northwest wind. Elsewhere, colder and drier air will filter into the central and eastern zones in part to high pressure.

By Sunday night into Monday, a developing warm front to our southwest could bring us a chance for some light snow or light rain. As the warm front lifts northward Monday night, this wintry mix of snow and rain should become plain rain Tuesday ahead of an approaching cold front and its affiliated surface low pressure system. Milder air will be short-lived Tuesday before a cold front brings a rush of colder air into the area late Tuesday and Tuesday night. Upslope light snow and a chance of snow showers to the east could evolve with the rush of cold air Tuesday night.

High pressure will build in across the region on Wednesday. Expect below average temperatures to develop and continue.

AVIATION /14Z WEDNESDAY THROUGH SUNDAY/. VFR conditions expected through Thursday night. Gusty northwest winds at times today should relax later tonight. A period of freezing rain is possible at CHO early Friday, then up towards MRB later in the morning-midday, but otherwise, mainly rain is expected Friday and Friday night. Cigs and vsby likely to drop to IFR at times by Friday night with the rain.

MVFR conditions possible with rain showers Saturday. VFR conditions Saturday night through Sunday night. A few snow showers could venture across CHO and MRB terminals Sunday night, but shouldn't have any big impacts on the terminals. Winds light and variable Saturday becoming west 5 to 10 knots Saturday night. Winds increasing west-northwest 10 to 15 knots gusts 20 knots Sunday and Sunday night.

MARINE. SCA continuing at times through this morning, and a secondary boundary may reinvigorate winds tonight for a time. High pressure then should let winds relax to sub-SCA by Thursday afternoon. Light winds then should prevail through Friday night.

Small craft advisory conditions possible Sunday into Sunday evening as high pressure over the Great Lakes interacts with low pressure over New England.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory until midnight EST tonight for ANZ531>533- 539>541. Small Craft Advisory until 6 PM EST this evening for ANZ530- 535-536-538-542. Small Craft Advisory until noon EST Thursday for ANZ534-537- 543.

SYNOPSIS . CJL NEAR TERM . CJL SHORT TERM . RCM LONG TERM . KLW AVIATION . RCM/KLW/CJL MARINE . RCM/KLW/CJL


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 14 mi70 min NW 8 G 15 36°F 44°F1029.9 hPa (+2.6)
BSLM2 - Chesapeake Bay, MD 30 mi160 min NW 4.1 34°F 1027 hPa27°F
NCDV2 35 mi70 min NNW 8 G 14 38°F 49°F1028.6 hPa (+2.1)
APAM2 - 8575512 - Annapolis, MD 44 mi70 min 37°F 1028.1 hPa (+1.8)
44063 - Annapolis 45 mi52 min NNW 16 G 19 37°F 46°F1029.1 hPa
TPLM2 - Thomas Point, MD 45 mi70 min WNW 16 G 19 35°F 45°F1029.6 hPa (+1.9)21°F
44062 - Gooses Reef, MD 48 mi58 min NNW 16 G 18 37°F 1030.2 hPa
BLTM2 - 8574680 - Baltimore, MD 49 mi70 min NNW 9.9 G 14 37°F 46°F1028.3 hPa (+2.1)
CPVM2 49 mi70 min 38°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 49 mi70 min WNW 18 G 19 35°F 1028.3 hPa

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
Last
24hr
SW5
G10
S3
--
--
NW7
G10
NW3
NW6
G13
NW7
G14
NW7
G21
NW10
G15
NW5
G10
NW8
G12
NW10
G15
NW9
G15
N4
G13
NW5
G8
NW10
G18
NW7
G11
NW7
G11
NW7
G12
W6
G10
NW5
G8
NW9
G13
NW8
G15
1 day
ago
S7
S6
S6
G9
S6
S8
G11
S8
S7
S9
G12
S10
S8
G11
S8
G12
SW10
G14
S10
S11
G15
S9
G12
S10
G15
S11
S10
G15
S7
G11
S8
S5
S7
S8
G12
S7
2 days
ago
S3
SW7
S6
S7
S8
S5
S1
SE1
SE4
W1
S1
SE5
G10
S6
S4
SE2
SE3
W1
G7
NW3
--
S2
S3
S4
G7
S6
S6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Belvoir, VA7 mi74 minWNW 10 G 2010.00 miFair37°F18°F47%1029.8 hPa
Washington/Reagan National Airport, DC, VA13 mi18 minWNW 14 G 2110.00 miA Few Clouds38°F21°F51%1029.4 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA14 mi14 minNNW 1010.00 miFair36°F21°F55%1030.2 hPa
Washington/Dulles International Airport, DC, VA15 mi18 minNW 1110.00 miA Few Clouds36°F19°F52%1029.3 hPa
Quantico Marine Corps Airfield - Turner Field, VA20 mi74 minNNW 1310.00 miA Few Clouds38°F25°F60%1030.3 hPa
Camp Springs / Andrews Air Force Base, MD21 mi74 minWNW 1410.00 miFair36°F23°F62%1029.3 hPa
College Park Airport, MD22 mi34 minNNW 710.00 miFair36°F16°F44%1028.8 hPa

Link to 5 minute data for KDAA

Wind History from DAA (wind in knots)
12
PM
1
PM
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
Last 24hrS3W3S3NW4NW4NW7NW8NW14
G18
NW9NW7NW14
G18
NW12
G21
NW10NW13
G19
NW8NW18
G25
NW6NW14NW8W5NW6NW13NW10
G20
NW9
G16
1 day ago--CalmS3--S4CalmS3S5--S7S7S6S5S5S5S5CalmS6S3S5CalmS3S3Calm
2 days agoSE3S7SE9S4S3CalmCalmCalmW4CalmSE5SE4CalmCalmSE3NW4CalmCalmCalmSE3CalmCalmS3S4

Tide / Current Tables for Marshall Hall, Potomac River, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Chain Bridge, one mile below, Washington, D.C.
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
       (on/off)   Help Weather Map
wmap_A
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
Wind Forecast for Baltimore, MD/Washington (11,2,3,4)
      (on/off)   Help

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

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.