Monday, January25, 2021
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Marine Weather and Tides
Edgemere, MD

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:16AMSunset 5:20PM Monday January 25, 2021 4:18 PM EST (21:18 UTC) Moonrise 2:19PMMoonset 4:50AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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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ANZ538 Patapsco River Including Baltimore Harbor- 342 Pm Est Mon Jan 25 2021
Rest of this afternoon..NE winds 5 kt. Waves flat. A chance of snow. Vsby 1 to 3 nm.
Tonight..E winds 5 to 10 kt. Waves 1 ft. Rain, snow with a chance of freezing rain. Vsby 1 to 3 nm.
Tue..NE winds 5 to 10 kt. Waves 1 ft. Rain.
Tue night..NW winds 5 kt. Waves flat.
Wed..NW winds 5 to 10 kt. Waves 1 ft.
Wed night..N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of snow and rain.
Thu..NW winds 10 to 15 kt. Waves 1 to 2 ft.
Fri..NW winds 10 to 15 kt. Waves 1 ft.
ANZ500 342 Pm Est Mon Jan 25 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure will approach today before passing through Tuesday. High pressure will briefly return Wednesday, but low pressure may impact the waters Wednesday night and Thursday. High pressure will return late in the week. A small craft advisory may be needed for portions of the waters Tuesday, and again Thursday into Friday. Gale force winds will be possible on Thursday, possibly into Friday morning.


7 Day Forecast for Marine Location Near Edgemere, MD
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location: 39.19, -76.47     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 251959 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 259 PM EST Mon Jan 25 2021

SYNOPSIS.

Low pressure will pass through the area on Tuesday. An upper level disturbance is expected to pass through the area Thursday morning while low pressure develops well southeast of the area. High pressure will gradually build toward the area early next week. A storm system may impact the area next Monday.

NEAR TERM /THROUGH TUESDAY/.

There have been some notable trends in the 12Z model cycle today, more importantly, for a colder solution and also less QPF tonight with the heaviest precip aimed at the upslope areas of the Appalachians. Observational trends support this colder solution with sfc ridging still in place and current dewpoints still in the upper teens at BWI and lower 20s at DCA. It's difficult to get all precip to be all rain when dewpoints are still so low. To add to the uncertainty is a deep isothermal layer right at freezing seen on model soundings. Only a degree or two degree difference could make a big difference in p-type and specific snow/ice amounts. Please refer to our snow and ice forecasts at weather.gov/lwx. Definitely expecting a period of wintry precip tonight before precip turns lighter overnight and Tue as mid-level dry slot moves in. Precip should end or if not exit the area by 18Z Tue, although some drizzle may persist across northeast MD longer.

SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/.

Tranquil conditions Tue night through Wed. Next upper level trough will swing through the area Wed night into Thu morning with light snow possible for areas south of U.S. Route 50.

LONG TERM /THURSDAY THROUGH MONDAY/.

For Thursday, models continue to suppress most of the wintry precip probabilities further south of our CWA. Any potential for bombogenesis would be later than the onset moisture/decreasing temperatures for our area to cause much of an issue. Still could see a period of rain/snow mix early on Thursday with any moisture that makes its way into the area along with temperatures forecasted to be below freezing for most areas west of I-95. Conditions will continue to cold and windy for the area Thursday night into Friday. A system to our NE Friday could continue to allow the chance for a few flurries to be mixed in with these gusty NW winds. Not expected much in terms of impacts for this time period but a northern shift in the track of the low pressure system could inhibit higher threat levels for impacts Thursday into Friday.

High pressure builds in from the west Friday night and pushes offshore by early Sunday morning. This will allow for our next potential wintry system to take aim. With temperatures currently forecasted to be in the upper 30s to low 40s across most of the area Sunday, impacts for this system appear minimal currently. Onset precip may start out wintry before moving over to all rain for most of the duration of the event. With it still be 7 days out, conditions and impacts may change with any shift in parameters. Should be something to continue to monitor as we head closer to this event.

AVIATION /19Z MONDAY THROUGH SATURDAY/.

IFR/LIFR conditions developing this evening with a wintry mix of precip except at KCHO where it should remain all rain. Improving cigs Tue afternoon as precip ends.

VFR conditions likely Thursday and Friday with some gusty NW winds on Thursday before diminishing as high pressure begins to move overhead for our area. Could see a few flurries and reduced instances of visibility but it will be brief in nature.

MARINE.

Light and variable winds through Tue evening. Possible SCA Wed in NW flow.

Possibility for gales for the water between a low pressure system to our SE and an incoming high pressure from the west on Thursday. SCAs likely Thursday and Friday with that mentioning of gales possible. Winds will decrease Friday as high pressure briefly settles overhead.

LWX WATCHES/WARNINGS/ADVISORIES. DC . Winter Weather Advisory until 9 AM EST Tuesday for DCZ001. MD . Winter Storm Warning until 7 AM EST Tuesday for MDZ001-501-502. Winter Weather Advisory until 9 AM EST Tuesday for MDZ013-014. Winter Weather Advisory until 10 AM EST Tuesday for MDZ003>006- 008-011-503>508. VA . Winter Storm Warning until 7 AM EST Tuesday for VAZ503-504-507- 508. Winter Weather Advisory until 9 AM EST Tuesday for VAZ053-054. Winter Weather Advisory until 7 AM EST Tuesday for VAZ025>031- 038>040-501-505-506. WV . Winter Storm Warning until 7 AM EST Tuesday for WVZ050-055- 501>506. Winter Weather Advisory until 10 AM EST Tuesday for WVZ051>053. MARINE . None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FSNM2 4 mi48 min ENE 5.1 G 6 34°F 1018 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 4 mi48 min E 5.1 G 6 35°F 1018.8 hPa
BLTM2 - 8574680 - Baltimore, MD 8 mi48 min SE 4.1 G 6 35°F 42°F1018.2 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 12 mi48 min NNE 1.9 G 5.1 35°F 38°F1018.9 hPa
APAM2 - 8575512 - Annapolis, MD 14 mi48 min NNE 4.1 G 6 36°F 39°F1018.1 hPa
CPVM2 14 mi48 min 36°F 19°F
TPLM2 - Thomas Point, MD 20 mi18 min NNE 8 G 8.9 35°F 39°F1018.8 hPa (-1.4)20°F
BSLM2 - Chesapeake Bay, MD 31 mi48 min E 1.9 37°F 1018 hPa23°F
WASD2 - 8594900 - Washington, DC 37 mi48 min E 2.9 G 6 38°F 39°F1018.4 hPa
CHCM2 - 8573927 - Chesapeake City, MD 42 mi48 min Calm G 1 37°F 37°F1019 hPa
44062 - Gooses Reef, MD 44 mi36 min NE 9.7 G 9.7 38°F 40°F998.7 hPa
CA2 - 8571892 - Cambridge, MD 48 mi48 min NNE 6 G 8 39°F 38°F1018.1 hPa

Wind History for Francis Scott Key Bridge NE Tower, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baltimore / Martin, MD11 mi24 minENE 310.00 miOvercast36°F19°F52%1019.3 hPa
Baltimore, Baltimore-Washington International Airport, MD11 mi24 minENE 710.00 miOvercast36°F16°F44%1018.2 hPa
Annapolis, United States Naval Academy, MD15 mi24 minNNE 510.00 miOvercast36°F20°F52%1018.3 hPa
Fort Meade / Tipton, MD17 mi23 minNE 410.00 miOvercast36°F21°F56%1019 hPa
Bay Bridge Field, MD17 mi23 minNE 410.00 miOvercast36°F19°F52%1018.6 hPa

Link to 5 minute data for KDMH

Wind History from DMH (wind in knots)
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Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for North Point, Maryland
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North Point
Click for Map
Mon -- 03:31 AM EST     0.45 feet High Tide
Mon -- 04:49 AM EST     Moonset
Mon -- 07:17 AM EST     Sunrise
Mon -- 09:32 AM EST     -0.33 feet Low Tide
Mon -- 02:19 PM EST     Moonrise
Mon -- 04:43 PM EST     1.02 feet High Tide
Mon -- 05:18 PM EST     Sunset
Mon -- 11:52 PM EST     0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.20.40.40.40.30.2-0-0.2-0.3-0.3-0.200.30.60.9110.90.80.60.40.20.1

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Mon -- 01:01 AM EST     0.00 knots Slack
Mon -- 03:05 AM EST     0.29 knots Max Flood
Mon -- 04:48 AM EST     Moonset
Mon -- 05:16 AM EST     -0.00 knots Slack
Mon -- 07:17 AM EST     Sunrise
Mon -- 08:19 AM EST     -0.50 knots Max Ebb
Mon -- 10:53 AM EST     0.00 knots Slack
Mon -- 02:19 PM EST     Moonrise
Mon -- 02:51 PM EST     1.08 knots Max Flood
Mon -- 05:18 PM EST     Sunset
Mon -- 06:28 PM EST     -0.00 knots Slack
Mon -- 09:51 PM EST     -0.95 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-00.20.30.20.1-0.2-0.4-0.5-0.5-0.300.40.811.110.60.2-0.2-0.6-0.9-1-0.8

Weather Map
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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
Ground Weather Radar Station




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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.