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ANZ535 Tidal Potomac From Key Bridge To Indian Head- 333 Am Est Mon Dec 4 2023
Rest of the overnight..W winds 5 kt. Waves less than 1 ft.
Today..W winds 5 kt. Waves less than 1 ft.
Tonight..NW winds 5 to 10 kt. Waves 1 ft.
Tue..NW winds 5 to 10 kt. Waves 1 ft.
Tue night..N winds around 5 kt. Waves 1 ft or less.
Wed..NW winds 5 to 10 kt. Waves 1 ft.
Wed night..NW winds 5 to 10 kt. Waves 1 ft.
Thu..W winds 5 to 10 kt...becoming s. Waves 1 ft.
Fri..S winds 5 to 10 kt. Waves 1 ft.

ANZ500 333 Am Est Mon Dec 4 2023
Synopsis for the tidal potomac and md portion of the chesapeake bay..
a weak ridge of high pressure moves overhead today and low pressure slides by well to our south. A low pressure system will impact the area Tuesday into Wednesday. High pressure will return to the waters Thursday and Friday. Small craft advisories may be needed Monday night and are likely on Wednesday.

FXUS61 KLWX 040855 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 355 AM EST Mon Dec 4 2023

SYNOPSIS

An upper level disturbance will move across the area this evening. A second stronger upper level disturbance will move across the area Wednesday afternoon. Surface ridging will build over the region during the second half of the week. A strong storm system may impact the area early next week.

NEAR TERM /THROUGH TONIGHT/

An upper level disturbance will move across the Mid-Atlantic this evening. With limited moisture, this feature is not expected to generate any precip, however, there will be plenty of mid- high level clouds around. Skies should clear tonight as shortwave-ridging builds in.

SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/

Second and stronger upper level disturbance will begin to dive from the western Great Lks Tue afternoon and reinforce the trough pattern across the East. Expect clouds to develop quickly by midday Tue with isold-sct rain showers expected at low elevations and snow showers across the higher terrain. Rain may also mix or change to snow along the Pennsylvania border Tue night. Snow showers will persist across the Appalachian region through Wed before trough axis shifts east of the region Wed night. A few inches of snow are likely across the Appalachian region which may require Winter Weather Advisories. In addition, brief rain or snow squalls are possible Wednesday everywhere.
Low-level thicknesses suggest p-type would be snow north of I-66 and rain south of there. Blustery Wed night with wind chills in the teens and twenties.

LONG TERM /THURSDAY THROUGH SUNDAY/

Chilly temperatures continue on Thursday in the wake of the aforementioned clipper low. High temperatures in the 40s can be expected.

High pressure will shift offshore on Friday into Saturday, meaning that we will see temperatures moderate a good bit. Highs in the mid to upper 50s are expected, with lows in the 30s.

Moving into Sunday, eyes turn towards a potent upper-level trough to our west. There is a lot of uncertainty at this point as to exactly what the main impacts from this system will be as it moves in our direction, as well as exactly when impacts may arrive. But there is the potential for a potent low pressure system and cold frontal passage. It will all depend on the track, so will have to monitor for a potential heavy rain and/or severe weather threat as we get closer in time and have a bit more consistency.

AVIATION /08Z MONDAY THROUGH FRIDAY/

VFR today. BKN035-045 cigs Tue afternoon through Wed afternoon in strong cold air advection pattern. Blustery NW winds Wednesday.

VFR conditions expected Thursday and Friday with winds out of the SSW on both afternoons at around 8 to 12 knots.

MARINE

A pressure surge late tonight will result in strengthening winds through 12Z Tue. Additional SCAs are likely Wed into Thu morning.

Winds taper off on Thursday and Friday, with mo marine hazards expected at this time.

LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory from midnight tonight to 7 AM EST Tuesday for ANZ531>534-537-539>541-543.

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Chain Bridge
Click for Map
Mon -- 01:10 AM EST     2.61 feet High Tide
Mon -- 07:10 AM EST     Sunrise
Mon -- 07:54 AM EST     0.22 feet Low Tide
Mon -- 12:36 PM EST     Moonset
Mon -- 01:47 PM EST     2.43 feet High Tide
Mon -- 04:46 PM EST     Sunset
Mon -- 07:58 PM EST     0.26 feet Low Tide
Mon -- 11:40 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Chain Bridge, D.C., Tide feet

Chain Bridge
Click for Map
Mon -- 01:05 AM EST     2.61 feet High Tide
Mon -- 07:10 AM EST     Sunrise
Mon -- 07:49 AM EST     0.22 feet Low Tide
Mon -- 12:35 PM EST     Moonset
Mon -- 01:42 PM EST     2.43 feet High Tide
Mon -- 04:46 PM EST     Sunset
Mon -- 07:53 PM EST     0.26 feet Low Tide
Mon -- 11:40 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Chain Bridge, one mile below, D.C., Tide feet

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