Friday, August14, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Quantico, 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.

Sunrise 6:21AMSunset 8:05PM Friday August 14, 2020 12:52 PM EDT (16:52 UTC) Moonrise 12:39AMMoonset 3:48PM Illumination 18% Phase: Waning Crescent; Moon at 25 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- 1037 Am Edt Fri Aug 14 2020
Rest of today..NE winds 10 kt. Waves 1 ft. Scattered showers late this morning, then showers likely with scattered tstms this afternoon.
Tonight..NE winds 5 to 10 kt. Waves 1 ft. Showers likely with scattered tstms.
Sat..NE winds 5 to 10 kt. Waves 1 ft. Scattered showers.
Sat night..E winds 5 to 10 kt. Waves 1 ft. Showers likely with scattered tstms.
Sun..NE winds 5 to 10 kt. Waves 1 ft. Showers.
Sun night..N winds 5 to 10 kt. Waves 1 ft. Scattered showers.
Mon..NW winds 5 kt. Waves less than 1 ft.
Tue..SE winds 5 kt. Waves less than 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1037 Am Edt Fri Aug 14 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A stationary front will remain near the mid atlantic through Saturday before gradually moving to the south late in the weekend. A cold front will approach early next week. A small craft advisory may be needed for portions of the waters Saturday through Saturday night and again Sunday night through Monday morning.


7 Day Forecast for Marine Location Near Quantico, VA
   Hourly   EDIT   Help
location: 38.47, -77.27     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KLWX 141408 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1008 AM EDT Fri Aug 14 2020

SYNOPSIS. A surface front will meander over the region through the weekend, bringing showers and thunderstorms each day. Low pressure will develop on this front and move across the region Saturday night into Sunday. High pressure will then briefly return early next week before an unsettled pattern likely returns by the middle of the week.

NEAR TERM /THROUGH TONIGHT/. Clouds are hanging tough as expected with onshore flow, but there are some signs of at least a few breaks. For the rest of today, a frontal boundary to our north will drop south through the area today. Meanwhile, a slow moving upper low will be approaching from the west. This will lead to more showers and storms today, especially into the afternoon hours. Hi-res guidance doesn't paint an ominous picture today, with QPF amounts much lighter than in previous days on the 00z HREF. Additionally, any showers/storms should be relatively progressive (as we are seeing this morning). Of course, given the antecedent conditions across a majority of the area, will have to watch for any heavier elements that may try to train along the front itself. However, with the front actually moving today, think this will be harder to do.

A brief lull in activity is possible overnight tonight for much of the area, though do expect lingering showers overnight in central VA and eastern WV. Overnight lows into the upper 60s/low 70s (upper 50s to low 60s in the higher elevations).

SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/. On Saturday, the slow-moving upper trough over the Ohio Valley will finally swing through the region. Additionally, at the surface, the aforementioned frontal boundary will remain over central VA. Meanwhile, a surface low will develop east of the upper trough and latch onto this front. This will result in low pressure moving just to the south of the region later Saturday into early Sunday. The track may move right over some of our southern zones. Onshore flow associated with this system could lead to locally enhanced rainfall along the ridges and in the Potomac Highlands. Guidance then takes the low across southern MD into the Delmarva overnight, while also gradually strengthening it. Rainfall amounts could also be locally be enhanced from central Virginia to southern Maryland, where they'll stand the best chance of destabilizing and developing some convective elements. With the continued clouds and storms, highs will continue to be in the 80s. Lows will be in the 60s to 70s.

All this being said, looking at a potential for flooding Saturday/Saturday night. Current forecast shows 2-3 inches of rain with this system across central VA and into southern MD. Some locally higher amounts are likely with convective elements and upslope flow. Given the recent heavy rains, it isn't going to take much to cause more flooding issues.

By Sunday morning, the low should be pushing off to the east, taking the rain with it. Some guidance is a little slower however, so leaving some POPs in through the early afternoon. Though, do think there is a good shot we are dry by early afternoon. Sunday will be much cooler than normal, with highs in the mid to upper 70s (low 80s closer to the water). Just hope we can get the rain out of here early enough to enjoy it. Sunday night will be dry, with lows ranging from the mid 50s in the higher elevations to upper 60s in the typical normal areas along the waters.

LONG TERM /MONDAY THROUGH THURSDAY/. Troughiness will dominate the East Coast states the first half of next week keeping temps aob normal. There will be drying for the first part of the week as NW flow develops in the wake of low pressure organizing offshore. By the middle of the week, moisture begins to increase as sfc high moves offshore and srly flow develops. However, moisture supply is not expected to be anywhere close to the past few days, so the risk of excessive rainfall appears low at this time. Ridging tries to build along the East Coast for the second half of next week likely limiting areal coverage of showers and t-storms.

AVIATION /15Z FRIDAY THROUGH TUESDAY/. Low clouds continue but are slowly lifting with a few breaks developing. Scattered showers are likely this afternoon, with a few thunderstorms possible mainly east of the Blue Ridge. Patchy fog is possible tonight (along with lower ceilings, which will probably offer a higher risk of restrictions).

More significant chance for rainfall will move into the region Saturday afternoon and continue through early Sunday, as low pressure tracks along a stationary front to our south. Locally heavy rain is possible with this system, and potentially some embedded thunderstorms (primarily towards KCHO). VSBY/CIG restrictions likely during this time.

Conditions begin to clear later in the day on Sunday, as low pressure pushes off to the east, with high pressure building in behind it and VFR conditions returning.

No sig wx expected the first half of next week.

MARINE. Generally sub-SCA conditions expected on the waters through Saturday, though a few NE wind gusts to around 20 knots are possible this morning (SCA until 1pm for the Chesapeake Bay between North Beach MD and Smith Point VA where it's most persistent). Main concern each day will be thunderstorms, primarily during the afternoon hours, though some may develop during the mornings. Gusty winds and even a few waterspouts will be possible with stronger storms.

Onshore flow is expected to persist Sunday, and may be near Small Craft Advisory (SCA) levels.

SCA conditions possible Monday morning. Otherwise, winds should diminish through time next week.

TIDES/COASTAL FLOODING. Minor coastal flooding is possible late Sat night and Sun as onshore flow strengthens as low pressure passes to the south. Near moderate coastal flooding can't be ruled out, especially near Straits Point and Annapolis MD.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory until 1 PM EDT this afternoon for ANZ533- 534.

SYNOPSIS . CJL NEAR TERM . DHOF/CJL SHORT TERM . CJL/KJP LONG TERM . LFR AVIATION . LFR/DHOF/CJL MARINE . LFR/DHOF/CJL TIDES/COASTAL FLOODING . LFR/DHOF


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
BSLM2 - Chesapeake Bay, MD 37 mi142 min NNE 4.1 1015 hPa
44062 - Gooses Reef, MD 46 mi28 min 80°F 83°F

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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
12
PM
Last
24hr
--
N1
G6
NE2
G5
E4
SE5
G8
SE3
G9
E2
G6
SE2
G5
NE1
G7
NE2
G6
NE3
G6
NE1
G4
E2
G8
NE2
NE4
G7
N1
G4
NE4
G7
NE5
G8
NE4
G7
NE3
G11
NE7
G13
NE6
G10
N5
G10
N4
G8
1 day
ago
W3
S5
S4
SW5
G8
SE3
G6
NE3
G13
NE4
G11
N2
W1
E2
NE2
SE3
--
E1
SE1
G5
E1
G4
NE1
E2
N3
NE3
E1
G6
SE4
G8
E1
G4
N4
2 days
ago
S7
G10
S9
S8
G11
S11
S7
G11
S10
S8
S5
G8
S4
S6
S6
SE4
S5
S6
SW5
SW4
W3
G6
W4
G8
NW4
--
NE3
SW4
S5
SW2

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, VA3 mi56 minNE 129.00 miOvercast83°F71°F67%1015.2 hPa
Stafford, Stafford Regional Airport, VA11 mi57 minN 010.00 miMostly Cloudy84°F74°F72%1016.6 hPa
Fredericksburg, Shannon Airport, VA17 mi57 minNNE 610.00 miMostly Cloudy82°F74°F78%1014.9 hPa
Fort Belvoir, VA19 mi1.9 hrsN 010.00 miPartly Cloudy82°F72°F75%1015.8 hPa
Manassas, Manassas Regional Airport/Harry P. Davis Field, VA22 mi56 minN 910.00 miMostly Cloudy82°F73°F74%1015.8 hPa

Link to 5 minute data for KNYG

Wind History from NYG (wind in knots)
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
12
PM
Last 24hrNE4N766NE6E8NE6E6E8NE10NE9NE8NE11NE10N7N8N7N8NW6N9NE13--NE12NE12
1 day agoS4SE3S17SW5S4S4SE6E6Calm3S5E5E4NE4SE5CalmNW3E6CalmW5NW3E9NE7NE5
2 days agoS7S8--S8S8S8S8S9SW5SW5SW3S6S6SW5S6NW7NW5CalmCalm--SW3------

Tide / Current Tables for Liverpool Point, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Liverpool Point
Click for Map
Fri -- 01:39 AM EDT     Moonrise
Fri -- 02:23 AM EDT     1.47 feet High Tide
Fri -- 06:22 AM EDT     Sunrise
Fri -- 09:24 AM EDT     0.30 feet Low Tide
Fri -- 03:12 PM EDT     1.26 feet High Tide
Fri -- 04:47 PM EDT     Moonset
Fri -- 08:03 PM EDT     Sunset
Fri -- 08:56 PM EDT     0.26 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
1.21.41.51.41.31.10.80.60.40.30.30.50.811.21.31.210.70.50.30.30.30.5

Tide / Current Tables for Aquia Creek, Virginia
   EDIT      (on/off)   Help   One Week of Data
Aquia Creek
Click for Map
Fri -- 01:39 AM EDT     Moonrise
Fri -- 02:41 AM EDT     1.28 feet High Tide
Fri -- 06:23 AM EDT     Sunrise
Fri -- 09:30 AM EDT     0.12 feet Low Tide
Fri -- 02:58 PM EDT     0.78 feet High Tide
Fri -- 04:48 PM EDT     Moonset
Fri -- 08:03 PM EDT     Sunset
Fri -- 09:24 PM EDT     0.04 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
0.91.11.21.31.110.80.60.40.20.10.30.50.60.70.80.70.60.40.30.20.10.10.3

Weather Map
       (on/off)   Help Weather Map
wmap_A
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
Wind Forecast for Baltimore, MD/Washington (12,3,4,5)
      (on/off)   Help

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

Ad by Google

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. 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 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.