Monday, March30, 2020
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Marine Weather and Tides
Edgewater, MD

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 6:51AMSunset 7:29PM Monday March 30, 2020 11:28 AM EDT (15:28 UTC) Moonrise 9:30AMMoonset 12:00AM Illumination 40% Phase: Waxing Crescent; Moon at 6 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
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ANZ532 Chesapeake Bay From Sandy Point To North Beach- 1037 Am Edt Mon Mar 30 2020
.small craft advisory in effect through late tonight...
Rest of today..W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Patchy fog late this morning with vsby 1 nm or less.
Tonight..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Tue..NE winds 5 to 10 kt. Waves 1 ft.
Tue night..E winds 10 kt. Waves 2 ft. A chance of rain.
Wed..N winds 5 to 10 kt. Waves 1 ft.
Wed night..NW winds 10 to 15 kt. Waves 1 ft.
Thu..NW winds 10 to 15 kt. Waves 1 to 2 ft.
Fri..E winds 5 to 10 kt. Waves 1 to 2 ft.
ANZ500 1037 Am Edt Mon Mar 30 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A secondary cold front approaching from the great lakes will cross the mid-atlantic today. High pressure will build in its wake tonight into Tuesday before low pressure passes well to the south Tuesday night into Wednesday. High pressure will follow into the first half of the weekend. A small craft advisory will likely be needed Tuesday night into Wednesday, and may be needed Thursday.


7 Day Forecast for Marine Location Near Edgewater, MD
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location: 38.95, -76.55     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 301425 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1025 AM EDT Mon Mar 30 2020

SYNOPSIS. A secondary cold front approaching from the Great Lakes will cross the Mid-Atlantic today. High pressure will build in its wake tonight into Tuesday before low pressure passes well to the south Tuesday night into Wednesday. High pressure will follow into the first half of the weekend. A cold front may approach by early next week.

NEAR TERM /THROUGH TUESDAY/. The marine layer has been stubborn to erode, but appears to be doing to per last half hour of satellite imagery. A secondary cold front appears poised to cross the Appalachians, promoting deep mixing which will finally scour out the low-level moisture. Mean momentum transfer should support wind gusts in the mid 20s (knots). Airmass remains fairly warm, which will only be aided by downslope flow, so raised high temps by a degree or two.

Cooler air builds south across the region tonight with high pressure and dwindling winds. Temps will be cooler than they've been in several days, but still only near normal for this time of year. A stray shower can't be ruled out overnight as a weak disturbances passes.

Clouds will increase on Tuesday as a backdoor front drops southeast across the area and low pressure approaches from the southwest. This low will only give us a glancing blow, but a few showers may develop with the back door front as well. Temperatures will be cooler with the clouds and overall cooler Canadian air mass, with highs only in the 50s.

SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/. Low pressure passes to the south and then off the coast Tuesday night into Wednesday. Best chance of rain is Tuesday night, but some showers may linger Wednesday with upper level forcing and some surface convergence. Highest elevations of the mountains may see an inch or two of snow, but not advisory criteria. System heads out to sea by Wednesday night with decreasing clouds. Low Tuesday night will remain seasonable, but highs Wednesday will be on the cool side for this time of year once again, with 50s common. Lows Wednesday night mainly in the 30s.

LONG TERM /THURSDAY THROUGH SUNDAY/. High pressure is expected to retain control of the weather pattern over the Mid-Atlantic Thursday into the first half of the weekend. This will lead to gradually warming temperatures and mainly dry conditions. A cold front may approach Sunday into Monday bringing the next chance of rain. Model guidance has trended slower with this front, though spread is still large.

AVIATION /14Z MONDAY THROUGH FRIDAY/. Low clouds and fog finally starting to scour out. Terminals have achieved VFR, and should remain so for the rest of today. west/northwest winds should support gusts in the mid 20s (knots) this afternoon.

Winds diminish tonight but should remain VFR. Conditions may deteriorate later Tuesday as low- level easterly flow redevelops, with sub-VFR conditions most likely Tuesday night into Wednesday as low pressure passes south of the area and then off the coast. Conditions likely improve to VFR Wednesday night.

Mainly VFR expected Thu-Fri in NW flow (G20 kts possible).

MARINE. Low pressure moving away from the region with high pressure building in will allow gusty winds across the waters today. They may be marginal, but will keep SCA issued previously for all waters through this evening. Gusts diminish overnight with high pressure, but as low pressure passes to the south and strengthens Tuesday night and Wednesday, SCA may again be needed.

Northwesterly flow is expected with gusts exceeding 20 knots possible Thursday into Friday morning, likely becoming lighter by Friday afternoon as high pressure builds.

FIRE WEATHER. Gusty northwest winds and low humidity are expected today across central Virginia as high pressure builds in. Relative humidity will drop below 30 percent across much of Virginia this afternoon as winds increase to 15 to 20 mph (gusts up to 30 mph). Issued a Special Weather Statement to highlight risk, focusing on central Virginia. Fuels in Maryland are too moist and RH not forecast to drop below 30%.

TIDES/COASTAL FLOODING. Water levels running about a foot to a foot and a half above astronomical normals this morning. At this level, the tide fell about an inch or two short of minor at Straits Point and it looks like it'll just hit the minor threshold at Annapolis. Will hold onto Anne Arundel's Advisory until the tide reaches the mouth of the Patapsco. Will also be monitoring SW DC.

Departures will remain high for the next couple of days, although there should be a brief decline with northwest winds picking up later today.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . Coastal Flood Advisory until 2 PM EDT this afternoon for MDZ014. VA . None. WV . None. MARINE . Small Craft Advisory until 2 AM EDT Tuesday for ANZ530>543.

SYNOPSIS . DHOF NEAR TERM . HTS/RCM SHORT TERM . RCM LONG TERM . DHOF AVIATION . HTS/RCM/DHOF MARINE . RCM/DHOF FIRE WEATHER . HTS TIDES/COASTAL FLOODING . HTS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APAM2 - 8575512 - Annapolis, MD 4 mi59 min 60°F 1014.1 hPa
TPLM2 - Thomas Point, MD 7 mi29 min SSE 11 G 12 52°F 51°F1014.9 hPa (-1.9)52°F
CPVM2 9 mi59 min 53°F
BSLM2 - Chesapeake Bay, MD 14 mi119 min S 5.1 1015 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 19 mi59 min S 8 G 8 56°F 1013.8 hPa
FSNM2 19 mi71 min S 6 G 8 58°F 1013.6 hPa
BLTM2 - 8574680 - Baltimore, MD 22 mi59 min S 4.1 G 7 58°F 53°F1013.5 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 24 mi65 min SSW 11 G 13 53°F 51°F1014.6 hPa
WASD2 - 8594900 - Washington, DC 26 mi59 min S 8 G 9.9 56°F 55°F1014.7 hPa
44062 - Gooses Reef, MD 28 mi41 min SW 5.8 G 5.8 53°F 949 hPa
CA2 - 8571892 - Cambridge, MD 36 mi59 min SSW 4.1 G 5.1 57°F 53°F1015.1 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 39 mi71 min SSW 6 G 7 1015.7 hPa
SLIM2 - 8577330 - Solomons Island, MD 44 mi59 min SW 5.1 G 6 55°F 53°F1015.1 hPa

Wind History for Francis Scott Key Bridge NE Tower, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD4 mi35 minSSE 1010.00 miFair59°F51°F75%1014 hPa
Bay Bridge Field, MD12 mi44 minSSW 710.00 miFair59°F51°F77%1014.6 hPa
Fort Meade / Tipton, MD15 mi44 minSSW 510.00 miPartly Cloudy59°F50°F72%1014.6 hPa
Baltimore, Baltimore-Washington International Airport, MD18 mi35 minSSW 710.00 miA Few Clouds61°F48°F65%1013.4 hPa
Camp Springs / Andrews Air Force Base, MD19 mi93 minS 310.00 miPartly Cloudy55°F52°F88%1015.6 hPa
College Park Airport, MD20 mi44 minS 510.00 miPartly Cloudy58°F47°F67%1013.9 hPa
Baltimore, Inner Harbor, MD23 mi35 minno data mi63°F51°F65%1014.6 hPa

Link to 5 minute data for KNAK

Wind History from NAK (wind in knots)
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Last 24hrCalmE9S8S7SE4SE8SE8E3N4N105NE3NE3N4CalmN4NE6SE4SE4SE3S3S44SE10
1 day agoSE10SE3N5NE9E9NE9NE8NE6NE3N7N7N4CalmN4N6N5N5NE5NE3N3E3N4CalmCalm
2 days agoNW5NW5NW5NW5N5E6E5SE6CalmCalmCalmCalmCalmCalmSE3E3S6SE3CalmSE6SE6E7E5E6

Tide / Current Tables for Edgewater, South River, Maryland
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Edgewater
Click for Map
Mon -- 12:35 AM EDT     Moonset
Mon -- 02:40 AM EDT     0.13 feet Low Tide
Mon -- 06:53 AM EDT     Sunrise
Mon -- 09:26 AM EDT     1.16 feet High Tide
Mon -- 10:29 AM EDT     Moonrise
Mon -- 04:38 PM EDT     0.28 feet Low Tide
Mon -- 07:28 PM EDT     Sunset
Mon -- 09:56 PM EDT     0.74 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.30.20.10.20.40.60.811.11.110.90.70.50.40.30.30.30.50.60.70.70.7

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Mon -- 12:34 AM EDT     Moonset
Mon -- 12:50 AM EDT     -0.00 knots Slack
Mon -- 03:50 AM EDT     -0.47 knots Max Ebb
Mon -- 06:30 AM EDT     0.00 knots Slack
Mon -- 06:52 AM EDT     Sunrise
Mon -- 10:18 AM EDT     0.87 knots Max Flood
Mon -- 10:28 AM EDT     Moonrise
Mon -- 01:53 PM EDT     -0.00 knots Slack
Mon -- 05:13 PM EDT     -0.75 knots Max Ebb
Mon -- 07:27 PM EDT     Sunset
Mon -- 09:04 PM EDT     0.00 knots Slack
Mon -- 11:18 PM EDT     0.29 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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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)
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Ground Weather Radar Station Dover AFB, DE
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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.