Brookmont, MD Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Brookmont, MD

April 21, 2024 8:27 AM EDT (12:27 UTC) Change Location
Sunrise 6:20 AM   Sunset 7:53 PM
Moonrise 4:52 PM   Moonset 4:20 AM 
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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.

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Marine Forecasts
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ANZ535 Tidal Potomac From Key Bridge To Indian Head- 735 Am Edt Sun Apr 21 2024

Today - N winds 5 kt. Waves less than 1 ft.

Tonight - NW winds 5 kt. Waves less than 1 ft.

Mon - NW winds 5 to 10 kt. Waves 1 ft.

Mon night - W winds around 5 kt. Waves 1 ft or less.

Tue - S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 ft.

Tue night - S winds 10 kt with gusts to 20 kt. Waves 1 ft.

Wed - SW winds 10 to 15 kt - .becoming nw. Waves 1 ft. A chance of showers through the day.

Thu - N winds 5 to 10 kt. Waves 1 ft.

ANZ500 735 Am Edt Sun Apr 21 2024

Synopsis for the tidal potomac and md portion of the chesapeake bay -
high pressure will gradually push in from the west today while low pressure passes well to the south. The high will move overhead Monday and Tuesday. A cold front will cross the area Wednesday. Small craft advisories will likely be needed Tuesday through Thursday.


7 Day Forecast for Marine Location Near Brookmont, MD
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Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 210800 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 400 AM EDT Sun Apr 21 2024

SYNOPSIS
Low pressure will pass south of the area today. High pressure will build overhead Monday and Tuesday. A cold front will cross the area Wednesday, followed by high pressure for the end of the week.

NEAR TERM /THROUGH TONIGHT/
A front is stalled across the southeastern states this morning with multiple waves of low pressure along it. High level clouds have spread northward across the forecast area, and mid level clouds will follow suit after sunrise. Overall it will be a mostly cloudy day, which combined with the cooler post frontal airmass, will mean that temperatures will remain below 60 for most areas. A shortwave will cause overrunning rain to spread northeastward from the frontal zone later this morning into the afternoon. The cutoff for this precipitation will be very close to Nelson and St. Marys Counties, with 00Z guidance indicating an increased chance for light rain across far southern Maryland.

Skies will clear this evening, but the passage of a trough and pressure rises may mean winds remain elevated for a time. It does appear winds should slack during the second half of the night, especially west of the Blue Ridge. With dew points in the upper 20s, there is potential for subfreezing temperatures, and have thus issued a Freeze Watch. Probabilities are slightly higher in the central Shenandoah Valley. In addition, Frost Advisories may be needed for locations west of the I-95 corridor as temperatures likely dip to the mid 30s.

SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/
High pressure will build in from the west Monday and Monday night with mostly clear skies expected. While slightly warmer overall, temperatures will still be a little below normal. Frost may be a concern for rural areas again Monday night.

The high will push to the south and east on Tuesday. Increasing southerly flow will result in temperatures warming into the mid 60s to lower 70s. Clouds will gradually increase ahead of a low pressure system moving through the Great Lakes. Showers ahead of this system may reach the Appalachians during the evening and definitely overnight as the cold front approaches. While some showers may spread across the remainder of the area, recent guidance has been trending drier east of the mountains.

LONG TERM /WEDNESDAY THROUGH SATURDAY/
High pressure will move east to the coast Wednesday. A cold front will push across the region Wednesday morning. The possible timing of frontal passage early in the day, along with a developing westerly downsloping flow, could reduce the possibility of any strong thunderstorms or prolonged periods of showers. As a matter of fact, many areas to the east of the Appalachians may not see any rainfall Wednesday into Wednesday night. High temperatures Wednesday will be near average. An upslope wind into the ridgeline of the Appalachians could lead to some enhancement of shower activity, but probably not widespread or flood potential.

An area of cooler high pressure is expected to build behind the front Thursday with a reinforcing center of high pressure expected on Friday. Dry conditions expected each day with high temperatures a couple of degrees below average. Highs near 60 to lower 60s each day.

By Saturday, the secondary high moves to the east. A developing warm front to our southwest Friday night will push east and north Friday night and during the day Saturday. Increased light rain chances and perhaps some elevated thunder are possible ahead of and along this warm front late Friday night and Saturday. Temperatures will be closer to average, if not a few degrees above average on Saturday.
This will depend on how far the warm front pushes east and north.

AVIATION /08Z SUNDAY THROUGH THURSDAY/
VFR conditions are expected through Tuesday. Mid and high level ceilings are expected through this afternoon. North to northwest winds are expected through Monday at 10 kt or less. Increasing southerly flow on Tuesday may gust to 20 kt.

VFR conditions Wednesday through Thursday night. Winds southwest becoming northwest and increasing 15 to 25 knots Wednesday and Wednesday night. Winds northwest 10 to 15 knots gusts up to 20 knots Thursday. Winds becoming northeast 5 to 10 knots Thursday night.

MARINE
Small Craft Advisories remain in effect for much of the waters this morning, as gusty north winds were a little slower to arrive than previous forecast. However, sub-SCA winds are expected by mid morning. Another surge of NNW winds is expected tonight, and an additional advisory will be needed, mainly for the bay and lower Potomac since the interior waters should decouple somewhat.

Lighter winds are expected Monday and Monday night as high pressure builds overhead. Increasing southerly flow will develop Tuesday and Tuesday night. SCAs will likely be needed.

Small craft advisories likely Wednesday through Thursday morning.
Small craft advisories may still be possible Thursday afternoon. No marine hazards Thursday night. Winds becoming northwest 15 to 25 knots gusts up to 30 knots Wednesday through Thursday morning. Winds northwest 10 to 20 knots Thursday afternoon. Winds becoming northeast around 10 knots Thursday night.

LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...Freeze Watch from late tonight through Monday morning for MDZ003.
VA...Freeze Watch from late tonight through Monday morning for VAZ025>031-507-508.
WV...Freeze Watch from late tonight through Monday morning for WVZ050>053-055.
MARINE...Small Craft Advisory until 6 AM EDT early this morning for ANZ530>532-536-539>542.
Small Craft Advisory until 9 AM EDT this morning for ANZ533- 534-537-543.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
WASD2 - 8594900 - Washington, DC 5 mi70 min NNE 5.1G8 48°F 62°F30.09
BSLM2 - Chesapeake Bay, MD 23 mi58 min N 2.9 46°F 30.0933°F
APAM2 - 8575512 - Annapolis, MD 33 mi70 min NW 6G8 48°F 64°F30.08
44063 - Annapolis 35 mi58 min N 9.7G14 47°F 58°F1 ft
TPLM2 - Thomas Point, MD 35 mi88 min NNW 12G15 48°F 30.10
CBCM2 36 mi70 min NNE 9.9G13 60°F30.07
BLTM2 - 8574680 - Baltimore, MD 37 mi70 min N 6G8 47°F 60°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 37 mi70 min N 8.9G11 47°F
CPVM2 38 mi70 min 49°F 31°F
44043 - Patapsco, MD 41 mi58 min N 18G21 47°F 58°F1 ft
NCDV2 42 mi70 min N 2.9G8.9 49°F 64°F30.06
44062 - Gooses Reef, MD 44 mi58 min NNE 16G21 47°F 58°F2 ft


Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KDCA RONALD REAGAN WASHINGTON NATIONAL,VA 6 sm35 minNE 0710 smMostly Cloudy48°F27°F43%30.11
KCGS COLLEGE PARK,MD 10 sm7 minN 0510 smClear46°F27°F46%30.12
KADW JOINT BASE ANDREWS,MD 14 sm32 minNNE 0610 smClear46°F30°F53%30.08
KDAA DAVISON AAF,VA 15 sm32 mincalm10 smPartly Cloudy48°F28°F46%30.09
KGAI MONTGOMERY COUNTY AIRPARK,MD 18 sm31 minvar 0310 smClear45°F28°F53%30.11
KIAD WASHINGTON DULLES INTL,VA 19 sm35 minN 0410 smMostly Cloudy46°F25°F42%30.11
KFME TIPTON,MD 22 sm8 mincalm10 smClear45°F27°F49%30.13
Link to 5 minute data for KDCA


Wind History from DCA
(wind in knots)
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Tide / Current for Chain Bridge, one mile below, D.C.
   
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Chain Bridge
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Sun -- 01:53 AM EDT     0.53 feet Low Tide
Sun -- 05:20 AM EDT     Moonset
Sun -- 06:22 AM EDT     Sunrise
Sun -- 07:51 AM EDT     3.17 feet High Tide
Sun -- 02:28 PM EDT     0.46 feet Low Tide
Sun -- 05:52 PM EDT     Moonrise
Sun -- 07:51 PM EDT     Sunset
Sun -- 08:15 PM EDT     2.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Chain Bridge, one mile below, D.C., Tide feet
12
am
1
1
am
0.7
2
am
0.5
3
am
0.8
4
am
1.4
5
am
2.1
6
am
2.7
7
am
3
8
am
3.2
9
am
2.9
10
am
2.4
11
am
1.8
12
pm
1.2
1
pm
0.8
2
pm
0.5
3
pm
0.5
4
pm
0.9
5
pm
1.6
6
pm
2.2
7
pm
2.7
8
pm
2.9
9
pm
2.8
10
pm
2.4
11
pm
1.8



Tide / Current for Anacostia Bridge, D.C.
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Anacostia Bridge
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Sun -- 01:48 AM EDT     0.56 feet Low Tide
Sun -- 05:20 AM EDT     Moonset
Sun -- 06:22 AM EDT     Sunrise
Sun -- 07:46 AM EDT     3.26 feet High Tide
Sun -- 02:23 PM EDT     0.49 feet Low Tide
Sun -- 05:51 PM EDT     Moonrise
Sun -- 07:51 PM EDT     Sunset
Sun -- 08:10 PM EDT     2.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Anacostia Bridge, D.C., Tide feet
12
am
1
1
am
0.7
2
am
0.6
3
am
0.8
4
am
1.5
5
am
2.2
6
am
2.8
7
am
3.2
8
am
3.3
9
am
3
10
am
2.4
11
am
1.8
12
pm
1.2
1
pm
0.8
2
pm
0.5
3
pm
0.6
4
pm
1
5
pm
1.7
6
pm
2.3
7
pm
2.8
8
pm
3
9
pm
2.8
10
pm
2.4
11
pm
1.8




Weather Map
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GEOS Local Image of east us   
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Sterling, VA,



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