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Marine Weather and Tides
Version 3.4 |
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 7:16AM | Sunset 5:20PM | Monday January 25, 2021 4:18 PM EST (21:18 UTC) | Moonrise 2:19PM | Moonset 4:50AM | Illumination 94% | ![]() |
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.
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.
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
Hourly EDIT Help
location: 39.19, -76.47 debug
Area Discussion for - Baltimore, MD/Washington
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS61 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
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
FSNM2 | 4 mi | 48 min | ENE 5.1 G 6 | 34°F | 1018 hPa | |||
FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 4 mi | 48 min | E 5.1 G 6 | 35°F | 1018.8 hPa | |||
BLTM2 - 8574680 - Baltimore, MD | 8 mi | 48 min | SE 4.1 G 6 | 35°F | 42°F | 1018.2 hPa | ||
TCBM2 - 8573364 - Tolchester Beach, MD | 12 mi | 48 min | NNE 1.9 G 5.1 | 35°F | 38°F | 1018.9 hPa | ||
APAM2 - 8575512 - Annapolis, MD | 14 mi | 48 min | NNE 4.1 G 6 | 36°F | 39°F | 1018.1 hPa | ||
CPVM2 | 14 mi | 48 min | 36°F | 19°F | ||||
TPLM2 - Thomas Point, MD | 20 mi | 18 min | NNE 8 G 8.9 | 35°F | 39°F | 1018.8 hPa (-1.4) | 20°F | |
BSLM2 - Chesapeake Bay, MD | 31 mi | 48 min | E 1.9 | 37°F | 1018 hPa | 23°F | ||
WASD2 - 8594900 - Washington, DC | 37 mi | 48 min | E 2.9 G 6 | 38°F | 39°F | 1018.4 hPa | ||
CHCM2 - 8573927 - Chesapeake City, MD | 42 mi | 48 min | Calm G 1 | 37°F | 37°F | 1019 hPa | ||
44062 - Gooses Reef, MD | 44 mi | 36 min | NE 9.7 G 9.7 | 38°F | 40°F | 998.7 hPa | ||
CA2 - 8571892 - Cambridge, MD | 48 mi | 48 min | NNE 6 G 8 | 39°F | 38°F | 1018.1 hPa |
Wind History for Francis Scott Key Bridge NE Tower, MD
(wind in knots) EDIT (on/off)  Help-12 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 | 1 PM | 2 PM | 3 PM | |
Last 24hr | W | W | W | W | W | W | N | -- | E | E | E | E | E | NE | E | NE | E | E | NE | E | NE | E | NE | |
1 day ago | NW G23 | W G23 | NW | NW | NW G23 | W G17 | W G17 | W G17 | W G17 | W G15 | W G17 | W G17 | W | W | W G17 | W G17 | W | W | NW | W | NW G10 | NW | ||
2 days ago | W | NW G27 | W G20 | W G16 | W | W | W G21 | W | NW | W | NW | W | NW G21 | NW G20 | W | NW | NW | NW G27 | NW G33 | NW | NW G30 | NW G30 | NW | NW |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Baltimore / Martin, MD | 11 mi | 24 min | ENE 3 | 10.00 mi | Overcast | 36°F | 19°F | 52% | 1019.3 hPa |
Baltimore, Baltimore-Washington International Airport, MD | 11 mi | 24 min | ENE 7 | 10.00 mi | Overcast | 36°F | 16°F | 44% | 1018.2 hPa |
Annapolis, United States Naval Academy, MD | 15 mi | 24 min | NNE 5 | 10.00 mi | Overcast | 36°F | 20°F | 52% | 1018.3 hPa |
Fort Meade / Tipton, MD | 17 mi | 23 min | NE 4 | 10.00 mi | Overcast | 36°F | 21°F | 56% | 1019 hPa |
Bay Bridge Field, MD | 17 mi | 23 min | NE 4 | 10.00 mi | Overcast | 36°F | 19°F | 52% | 1018.6 hPa |
Link to 5 minute data for KDMH
Wind History from DMH (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 24hr | ||||||||||||||||||||||||
1 day ago | ||||||||||||||||||||||||
2 days ago |
Tide / Current Tables for North Point, Maryland
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataNorth 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
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
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 |
0.1 | 0.2 | 0.4 | 0.4 | 0.4 | 0.3 | 0.2 | -0 | -0.2 | -0.3 | -0.3 | -0.2 | 0 | 0.3 | 0.6 | 0.9 | 1 | 1 | 0.9 | 0.8 | 0.6 | 0.4 | 0.2 | 0.1 |
Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
EDIT (on/off)  Help One Week of DataBaltimore 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
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
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 |
-0.3 | -0 | 0.2 | 0.3 | 0.2 | 0.1 | -0.2 | -0.4 | -0.5 | -0.5 | -0.3 | 0 | 0.4 | 0.8 | 1 | 1.1 | 1 | 0.6 | 0.2 | -0.2 | -0.6 | -0.9 | -1 | -0.8 |
Weather Map
(on/off)  Help Weather Map
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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