Wednesday, February24, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Marumsco, VA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:46AMSunset 5:58PM Wednesday February 24, 2021 8:48 PM EST (01:48 UTC) Moonrise 3:01PMMoonset 5:19AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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- 641 Pm Est Wed Feb 24 2021
.small craft advisory in effect until 8 pm est this evening...
.small craft advisory in effect from 1 am est Thursday through Thursday morning...
Tonight..SW winds 10 kt with gusts to 20 kt... Becoming nw with gusts to 30 kt after midnight. Waves 1 ft.
Thu..NW winds 10 to 15 kt. Gusts up to 25 kt in the morning. Waves 1 ft.
Thu night..NW winds around 5 kt. Waves 1 ft.
Fri..NE winds 5 kt. Waves less than 1 ft.
Fri night..SE winds 5 kt. Waves less than 1 ft. Rain likely.
Sat..S winds 5 kt. Waves less than 1 ft. Rain likely.
Sat night..S winds around 5 kt. Waves 1 ft. A chance of showers.
Sun..W winds around 5 kt. Waves 1 ft. Showers likely.
Mon..NW winds 5 to 10 kt. Waves 1 ft. Showers likely in the morning, then a chance of showers. A chance of snow showers after midnight.
ANZ500 641 Pm Est Wed Feb 24 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will pass through the waters tonight and high pressure will build overhead for Thursday into Friday. Low pressure may impact the waters later Friday into the weekend.


7 Day Forecast for Marine Location Near Marumsco, VA
   Hourly   EDIT   Help
location: 38.61, -77.23     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KLWX 241928 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 228 PM EST Wed Feb 24 2021

SYNOPSIS.

A weak cold front will pass through the region this evening with high pressure building into our region through the rest of the week. A multi-low system will impact the region late Friday and through this weekend. High pressure returns for early next week.

NEAR TERM /THROUGH TONIGHT/.

The clouds that were over our region this morning have cleared out this afternoon. Daytime heating has increased as the skies have cleared which has led to the mixing of gusty winds of 20 to 25 knots down to the surface this afternoon. A strong prefrontal southerly flow has lead to good warm air advection which will allow afternoon temperatures to peak in the 60s and lower 70s in central Virginia.

A surface low pressure system will move to the north of our region over eastern Canada and the NE US. A cold front associated with this low will pass through our region late this evening and into early Thursday. The main shortwave energy associated with this system will remain far to the north which will limit the amount of precipitation that is able to reach east of the Allegheny front this evening. Rain will mainly impact parts of the western Maryland, the eastern panhandle of WV and western Virginia after 5 pm and should taper by 3 to 4 am in the morning. Precipitation should mainly fall as rain but a transition over to a rain/snow mix can't be ruled out along the Allegheny front at higher elevations if precip lingers later into early Thursday morning. Snow accumulations should be minimal as surface temperatures will be marginal after very warm afternoon.

SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/.

The cold front will pass southeast of our region by early Thursday morning. Behind the frontal passage, winds will become west to northwesterly leading to advection of cooler and drier air into our region. Skies will become mostly clear with cooler afternoon temps in the mid to upper 40s to low 50s. Overnight lows will be chilly in the 20s and lower 30s.

High pressure will build into our region Thursday afternoon and remain situated over the region through Friday. Temperatures will moderate through this period with near normal temps in the upper 40s to lower 50s. The high pressure overhead and will shift eastward off the eastern seaboard Friday afternoon. A multi low frontal system will pass to the south of our region late Friday and into Saturday. A coastal low will form along this frontal system and move north into our region on Saturday. The initial precipitation associated with this system will impact our region early on Saturday morning. Wintry precipitation during the initial onset can't be ruled out but the high pressure becoming situated off the coast will lead to a east to southeasterly flow which will advect in warmer and more moist air into our region and limit below freezing conditions. Overnight lows will hover in the 30s with near freezing temps mainly along the Allegheny front.

LONG TERM /SATURDAY THROUGH WEDNESDAY/.

Wet weather appears in store for Sunday and Mon as series of upper level disturbances move across the region north of a stationary front along the NC/VA border. There could multiple periods of rain or repeated activity as front remains stationary, but lack of instability suggests rain will be stratiform limiting rainfall rates, and thus, potential for any flooding. EPS reasonable worst case scenario is for amounts ranging from an inch across the north to inch and half across the south.

High pressure builds for Mon night before another low pressure impacts the area next Wednesday.

AVIATION /20Z WEDNESDAY THROUGH MONDAY/.

Gusty winds of 15 to 25 knots out of the south will continue for all terminals through this afternoon with mostly clear skies and VFR conditions. A front will pass through the region late this evening and into early Thursday leading to increased cloud cover for the MRB terminal but VFR conditions expected.

High pressure brings VFR conditions with winds becoming westerly on Thursday. A brief period of VFR overcast conditions will be possible Friday morning as an upper level jet passes overhead. Winds will become east to southeasterly on Friday with gusts of 10 to 15 knots.

Flight restrictions likely Sunday into Monday.

MARINE.

Gusty winds will continue over the waters through early Thursday but winds will weakened by Thursday afternoon. SubSCA conditions likely Thursday evening into Friday.

SCA conditions do not appear likely as area remains stable north of a surface front.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory until 11 AM EST Thursday for ANZ531>534- 537>543. Small Craft Advisory until 6 PM EST this evening for ANZ530- 535-536.

SYNOPSIS . JMG NEAR TERM . JMG SHORT TERM . JMG LONG TERM . LFR AVIATION . LFR/JMG MARINE . LFR/JMG


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 21 mi49 min S 2.9 G 5.1 54°F 39°F1010.7 hPa (+0.0)
NCDV2 22 mi49 min S 7 G 9.9 60°F 42°F1010.4 hPa (-1.0)
BSLM2 - Chesapeake Bay, MD 30 mi79 min SSW 7 52°F 1010 hPa40°F
44062 - Gooses Reef, MD 43 mi55 min SSW 12 G 14 41°F 37°F
SLIM2 - 8577330 - Solomons Island, MD 46 mi49 min S 6 G 8 51°F 40°F1011.2 hPa (-1.5)
APAM2 - 8575512 - Annapolis, MD 47 mi49 min SSE 4.1 G 8 45°F 38°F1010.1 hPa (-1.0)
COVM2 - 8577018 - Cove Point LNG Pier, MD 47 mi49 min SSE 12 G 12 45°F 1011.8 hPa (-1.7)
TPLM2 - Thomas Point, MD 47 mi49 min SSE 21 G 23 43°F 37°F1011.2 hPa (-0.7)40°F
PPTM2 - 8578240 - Piney Point, MD 49 mi49 min S 8.9 G 11

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
--
S2
N1
NW1
N1
S2
--
--
--
SE1
--
--
--
S4
S6
G11
S11
G15
S13
G16
S15
G19
S13
S12
G15
S13
G17
S8
G11
S6
S3
1 day
ago
SE1
SE3
SE2
--
S4
SE1
S2
SW2
--
SW3
S5
S5
G8
S4
S8
G11
S10
G13
SW10
G17
W9
G14
W11
G18
W18
G25
W18
G27
NW11
G19
NW8
G17
NW5
G9
W3
G6
2 days
ago
S4
SE6
S8
S7
G11
S7
S7
S6
G9
S10
S10
S10
S10
G13
S8
S4
S4
G8
S4
G7
SW2
S3
S10
G15
SW4
G9
SW4
SW2
G6
W2
--
--

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Quantico Marine Corps Airfield - Turner Field, VA8 mi53 minSSW 810.00 miFair52°F34°F50%1011.4 hPa
Fort Belvoir, VA9 mi53 minN 010.00 miFair57°F29°F35%1011.1 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA17 mi53 minN 010.00 miPartly Cloudy55°F32°F42%1011.5 hPa
Stafford, Stafford Regional Airport, VA19 mi74 minSSW 510.00 miFair60°F10°F14%1012.2 hPa
Washington/Reagan National Airport, DC, VA20 mi57 minSSW 810.00 miPartly Cloudy51°F34°F52%1010.5 hPa
Camp Springs / Andrews Air Force Base, MD24 mi53 minS 1210.00 miFair57°F30°F35%1010.9 hPa

Link to 5 minute data for KNYG

Wind History from NYG (wind in knots)
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
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrW3W8W6W7NW6W4CalmW5NW4CalmW4S3CalmCalmSW5S6S14S12S14S8
G15
S12
G22
S11S7S8
1 day agoCalmN3NW4W4W4SW3W4CalmW3W3CalmSW3S7------------W25
G34
NW13
G26
N5NW4W4
2 days agoS7S8S11S10S15S15S13S13S12S11S13S10S8S7S8S5SE15SE15SW9SW7SW5SW4SE4Calm

Tide / Current Tables for High Point, Occoquan Bay, Virginia
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
High Point
Click for Map
Wed -- 04:39 AM EST     1.40 feet High Tide
Wed -- 05:19 AM EST     Moonset
Wed -- 06:47 AM EST     Sunrise
Wed -- 10:45 AM EST     0.09 feet Low Tide
Wed -- 03:01 PM EST     Moonrise
Wed -- 04:49 PM EST     1.57 feet High Tide
Wed -- 05:56 PM EST     Sunset
Wed -- 11:41 PM EST     0.07 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
0.30.60.91.21.41.41.20.90.60.30.10.10.20.611.31.51.61.41.20.80.50.30.1

Tide / Current Tables for Quantico Creek, Virginia
   EDIT      (on/off)   Help   One Week of Data
Quantico Creek
Click for Map
Wed -- 04:37 AM EST     1.25 feet High Tide
Wed -- 05:19 AM EST     Moonset
Wed -- 06:47 AM EST     Sunrise
Wed -- 10:14 AM EST     0.07 feet Low Tide
Wed -- 03:02 PM EST     Moonrise
Wed -- 04:47 PM EST     1.41 feet High Tide
Wed -- 05:57 PM EST     Sunset
Wed -- 11:10 PM EST     0.06 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
0.30.60.91.11.21.210.70.40.20.10.10.30.611.21.41.41.310.70.40.20.1

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. 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. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply 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 numerous 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.