Marine Weather and Tide Forecast for Washington, DC
April 17, 2024 4:48 PM EDT (20:48 UTC) Change Location
Sunrise 6:26 AM Sunset 7:48 PM Moonrise 12:54 PM Moonset 2:50 AM |
ANZ535 Tidal Potomac From Key Bridge To Indian Head- 433 Pm Edt Wed Apr 17 2024
Rest of this afternoon - S winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms.
Tonight - S winds 5 to 10 kt - .becoming W late. Waves 1 ft. Scattered showers.
Thu - NW winds 5 to 10 kt. Waves 1 ft.
Thu night - NE winds 5 to 10 kt. Waves 1 ft.
Fri - SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Fri night - S winds 5 to 10 kt - .becoming nw after midnight. Waves 1 ft. A chance of showers.
Sat - NW winds 10 to 15 kt. Waves 1 ft.
Sun - N winds 5 to 10 kt. Waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
winds and waves higher and visibilities lower in and near tstms.
ANZ500 433 Pm Edt Wed Apr 17 2024
Synopsis for the tidal potomac and md portion of the chesapeake bay -
a stationary front will gradually return northward as a warm front today. This system is expected to stall nearby through late tonight before a cold front tracks through on Thursday morning. A stronger cold front approaches the region on Friday into Saturday morning. High pressure gradually pushes in from the west by late in the weekend. Small craft advisories may be needed at times from Thursday into the weekend.
a stationary front will gradually return northward as a warm front today. This system is expected to stall nearby through late tonight before a cold front tracks through on Thursday morning. A stronger cold front approaches the region on Friday into Saturday morning. High pressure gradually pushes in from the west by late in the weekend. Small craft advisories may be needed at times from Thursday into the weekend.
Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 171849 AFDLWX
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 249 PM EDT Wed Apr 17 2024
SYNOPSIS
A stationary front will slowly lift northward as a warm front tonight, eventually pulling north of the region by early Thursday. A weak cold front will track through on Thursday before a stronger cold front arrives on Saturday. High pressure returns on Sunday and into early next week.
NEAR TERM /THROUGH TONIGHT/
Warm front is located along I-64 and separates upper 50s to low 50s and even upper 40s dewpoints. Lots of stable wave clouds seen earlier on visible imagery across southwest areas indicative of convective inhibition present. On the other hand, a destabilizing air mass is seen on visible imagery over ern OH, nrn WV, and wrn PA ahead of main convective line over Michigan and western OH. Latest CAMs suggest that line will reach western MD around 02Z, although can't rule out a few/ isold showers and/or t-storms to develop along the warm front later this afternoon or evening, mainly across northern MD.
Expect the line of convection over OH to weaken rapidly into showers as it enters Maryland tonight as it will be arriving around or after midnight.
Overnight, areas of low clouds and/or fog are likely particularly across north central MD.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
Warm front lifts into PA Thu followed by a weak cold front.
Guidance shows a stable air mass and plenty of mid-level dry air to prevent convection, so only a windshift is expected.
Next cold front will cross the area Friday with showers expected. Air mass looks stable to prevent thunderstorms.
LONG TERM /SATURDAY THROUGH WEDNESDAY/
A cold front will be draped further south early Saturday, with limited moisture availability but winds will be gusting 20 to 25 knots, especially along and west of the Blue Ridge Mountains.
Highs will be in the 60s to low 60s for much of the area aside from the mountains, where mid 50s will be more common. Slightly cooler weather returns Sunday with continued dry conditions across the area with winds diminishing.
By the start of the workweek, a low pressure system to the south will continue to nudge eastward. A few light showers will be possible, mainly across the southernmost tier counties of our area.
Temperatures will begin to climb back into the upper 60s to near 70 Monday and Tuesday. Renewed shower chances increase as a shortwave moves nearby from the Great Lakes region. Warming conditions will continue into midweek.
AVIATION /18Z WEDNESDAY THROUGH MONDAY/
Some showers and/or t-storms are expected tonight mainly across northern MD. They are likely to stay away from the main terminals, except CHO. Wind shift tomorrow to NW behind a cold front, but remaining dry.
VFR conditions are expected Saturday into Sunday, with gusty WNW winds expected on Saturday before dissipating by Sunday.
MARINE
Showers possible across the northern waters tonight and Fri.
Marginal SCA gusts are possible Thu.
SCA conditions are possible Saturday into Saturday night before winds weaken into Sunday. No other marine hazards are expected for the weekend.
TIDES/COASTAL FLOODING
While some action stages may be reached through Thursday night (anomalies 1-1.5 feet above normal), the greater water level rises and potential for minor flooding will be toward Friday and Friday night as onshore or southerly flow develops ahead of a low pressure system.
LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...None.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 249 PM EDT Wed Apr 17 2024
SYNOPSIS
A stationary front will slowly lift northward as a warm front tonight, eventually pulling north of the region by early Thursday. A weak cold front will track through on Thursday before a stronger cold front arrives on Saturday. High pressure returns on Sunday and into early next week.
NEAR TERM /THROUGH TONIGHT/
Warm front is located along I-64 and separates upper 50s to low 50s and even upper 40s dewpoints. Lots of stable wave clouds seen earlier on visible imagery across southwest areas indicative of convective inhibition present. On the other hand, a destabilizing air mass is seen on visible imagery over ern OH, nrn WV, and wrn PA ahead of main convective line over Michigan and western OH. Latest CAMs suggest that line will reach western MD around 02Z, although can't rule out a few/ isold showers and/or t-storms to develop along the warm front later this afternoon or evening, mainly across northern MD.
Expect the line of convection over OH to weaken rapidly into showers as it enters Maryland tonight as it will be arriving around or after midnight.
Overnight, areas of low clouds and/or fog are likely particularly across north central MD.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
Warm front lifts into PA Thu followed by a weak cold front.
Guidance shows a stable air mass and plenty of mid-level dry air to prevent convection, so only a windshift is expected.
Next cold front will cross the area Friday with showers expected. Air mass looks stable to prevent thunderstorms.
LONG TERM /SATURDAY THROUGH WEDNESDAY/
A cold front will be draped further south early Saturday, with limited moisture availability but winds will be gusting 20 to 25 knots, especially along and west of the Blue Ridge Mountains.
Highs will be in the 60s to low 60s for much of the area aside from the mountains, where mid 50s will be more common. Slightly cooler weather returns Sunday with continued dry conditions across the area with winds diminishing.
By the start of the workweek, a low pressure system to the south will continue to nudge eastward. A few light showers will be possible, mainly across the southernmost tier counties of our area.
Temperatures will begin to climb back into the upper 60s to near 70 Monday and Tuesday. Renewed shower chances increase as a shortwave moves nearby from the Great Lakes region. Warming conditions will continue into midweek.
AVIATION /18Z WEDNESDAY THROUGH MONDAY/
Some showers and/or t-storms are expected tonight mainly across northern MD. They are likely to stay away from the main terminals, except CHO. Wind shift tomorrow to NW behind a cold front, but remaining dry.
VFR conditions are expected Saturday into Sunday, with gusty WNW winds expected on Saturday before dissipating by Sunday.
MARINE
Showers possible across the northern waters tonight and Fri.
Marginal SCA gusts are possible Thu.
SCA conditions are possible Saturday into Saturday night before winds weaken into Sunday. No other marine hazards are expected for the weekend.
TIDES/COASTAL FLOODING
While some action stages may be reached through Thursday night (anomalies 1-1.5 feet above normal), the greater water level rises and potential for minor flooding will be toward Friday and Friday night as onshore or southerly flow develops ahead of a low pressure system.
LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...None.
Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
WASD2 - 8594900 - Washington, DC | 0 mi | 48 min | SSE 7G | 71°F | 61°F | 29.94 | ||
BSLM2 - Chesapeake Bay, MD | 18 mi | 78 min | SE 7 | 68°F | 29.98 | 58°F | ||
APAM2 - 8575512 - Annapolis, MD | 30 mi | 48 min | SE 5.1G | 68°F | 63°F | 29.95 | ||
44063 - Annapolis | 31 mi | 42 min | S 12G | 62°F | 58°F | 0 ft | ||
TPLM2 - Thomas Point, MD | 31 mi | 48 min | SSW 8G | 63°F | 30.01 | |||
CBCM2 | 35 mi | 48 min | ENE 6G | 63°F | 60°F | 29.94 | 57°F | |
CPVM2 | 35 mi | 48 min | 64°F | 58°F | ||||
FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 35 mi | 48 min | ENE 6G | 63°F | ||||
BLTM2 - 8574680 - Baltimore, MD | 36 mi | 48 min | ESE 2.9G | 65°F | 61°F | |||
NCDV2 | 38 mi | 48 min | ESE 8G | 67°F | 65°F | 29.93 | ||
44043 - Patapsco, MD | 39 mi | 42 min | SSE 1.9G | 61°F | 59°F | |||
44062 - Gooses Reef, MD | 39 mi | 42 min | S 12G | 58°F | 58°F | 1 ft | ||
COVM2 - 8577018 - Cove Point LNG Pier, MD | 47 mi | 48 min | E 11G | 60°F | 29.98 | |||
TCBM2 - 8573364 - Tolchester Beach, MD | 47 mi | 48 min | WSW 4.1G | 69°F | 29.96 | |||
SLIM2 - 8577330 - Solomons Island, MD | 49 mi | 48 min | E 5.1G | 64°F | 57°F | 29.96 |
toggle option: (graph/table)
Airport Reports
EDIT (hide/show)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
KDCA RONALD REAGAN WASHINGTON NATIONAL,VA | 2 sm | 56 min | S 07 | 10 sm | Mostly Cloudy | 73°F | 59°F | 61% | 29.95 | |
KADW JOINT BASE ANDREWS,MD | 9 sm | 2.9 hrs | NE 06 | 10 sm | A Few Clouds | 70°F | 57°F | 64% | 29.97 | |
KCGS COLLEGE PARK,MD | 9 sm | 8 min | ESE 06 | 10 sm | Clear | 70°F | 57°F | 64% | 29.92 | |
KFME TIPTON,MD | 20 sm | 9 min | ESE 06 | 10 sm | Clear | 68°F | 55°F | 64% | 29.96 | |
KGAI MONTGOMERY COUNTY AIRPARK,MD | 22 sm | 52 min | SSE 10 | 10 sm | Clear | 70°F | 55°F | 60% | 29.97 | |
KIAD WASHINGTON DULLES INTL,VA | 24 sm | 56 min | SE 08 | 10 sm | Overcast | 72°F | 52°F | 50% | 29.93 |
Washington
Click for Map
Wed -- 03:50 AM EDT Moonset
Wed -- 04:02 AM EDT 2.77 feet High Tide
Wed -- 06:28 AM EDT Sunrise
Wed -- 10:40 AM EDT 0.62 feet Low Tide
Wed -- 01:53 PM EDT Moonrise
Wed -- 04:23 PM EDT 2.81 feet High Tide
Wed -- 07:47 PM EDT Sunset
Wed -- 11:25 PM EDT 0.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:50 AM EDT Moonset
Wed -- 04:02 AM EDT 2.77 feet High Tide
Wed -- 06:28 AM EDT Sunrise
Wed -- 10:40 AM EDT 0.62 feet Low Tide
Wed -- 01:53 PM EDT Moonrise
Wed -- 04:23 PM EDT 2.81 feet High Tide
Wed -- 07:47 PM EDT Sunset
Wed -- 11:25 PM EDT 0.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Washington, D.C., Tide feet
12 am |
1 |
1 am |
1.6 |
2 am |
2.2 |
3 am |
2.6 |
4 am |
2.8 |
5 am |
2.6 |
6 am |
2.2 |
7 am |
1.7 |
8 am |
1.3 |
9 am |
0.9 |
10 am |
0.7 |
11 am |
0.6 |
12 pm |
0.9 |
1 pm |
1.5 |
2 pm |
2.1 |
3 pm |
2.6 |
4 pm |
2.8 |
5 pm |
2.8 |
6 pm |
2.5 |
7 pm |
2 |
8 pm |
1.6 |
9 pm |
1.2 |
10 pm |
0.9 |
11 pm |
0.6 |
Chain Bridge
Click for Map
Wed -- 03:50 AM EDT Moonset
Wed -- 04:37 AM EDT 2.85 feet High Tide
Wed -- 06:28 AM EDT Sunrise
Wed -- 10:56 AM EDT 0.62 feet Low Tide
Wed -- 01:54 PM EDT Moonrise
Wed -- 04:58 PM EDT 2.90 feet High Tide
Wed -- 07:48 PM EDT Sunset
Wed -- 11:41 PM EDT 0.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:50 AM EDT Moonset
Wed -- 04:37 AM EDT 2.85 feet High Tide
Wed -- 06:28 AM EDT Sunrise
Wed -- 10:56 AM EDT 0.62 feet Low Tide
Wed -- 01:54 PM EDT Moonrise
Wed -- 04:58 PM EDT 2.90 feet High Tide
Wed -- 07:48 PM EDT Sunset
Wed -- 11:41 PM EDT 0.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Chain Bridge, D.C., Tide feet
12 am |
0.9 |
1 am |
1.4 |
2 am |
2 |
3 am |
2.5 |
4 am |
2.8 |
5 am |
2.8 |
6 am |
2.5 |
7 am |
2 |
8 am |
1.5 |
9 am |
1 |
10 am |
0.7 |
11 am |
0.6 |
12 pm |
0.8 |
1 pm |
1.3 |
2 pm |
1.9 |
3 pm |
2.4 |
4 pm |
2.8 |
5 pm |
2.9 |
6 pm |
2.7 |
7 pm |
2.3 |
8 pm |
1.8 |
9 pm |
1.4 |
10 pm |
1 |
11 pm |
0.7 |
Sterling, VA,
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