Sunrise 5:52 AM   Sunset 8:11 PM Moonrise 8:27 AM   Moonset 12:00 AM

  Print   HELP   Reset   Save   Recall  New

ANZ531 Chesapeake Bay From Pooles Island To Sandy Point- 135 Pm Edt Sun May 12 2024
.small craft advisory in effect until 4 pm edt this afternoon - .
This afternoon - NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Numerous showers with isolated tstms. Vsby 1 nm or less. Tonight - E winds 5 to 10 kt - .becoming se late. Waves 1 ft. Scattered showers. Mon - S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Mon night - S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Tue - S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers likely. Tue night - SE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Showers.Wed - NE winds 10 kt. Waves 1 to 2 ft. Showers. A chance of tstms in the evening, then a chance of showers after midnight. Thu - NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers in the morning.
winds and waves higher and visibilities lower in and near tstms.

ANZ500 135 Pm Edt Sun May 12 2024
Synopsis for the tidal potomac and md portion of the chesapeake bay -
a cold front will pass through the area today. High pressure will move overhead tonight and Monday before the next low pressure system approaches from the west Tuesday into Wednesday. Small craft advisories may be needed for portions of the waters Monday afternoon through Thursday.

FXUS61 KLWX 121833 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 233 PM EDT Sun May 12 2024

SYNOPSIS
High pressure returns tonight into Monday. A slow moving low pressure system will bring more unsettled weather Tuesday into the middle of the week.

NEAR TERM /THROUGH TONIGHT/
The strong upper low over the northern Mid-Atlantic today has fueled several rounds of strong to severe thunderstorms in northeast Maryland earlier this afternoon. As of 230PM, scattered showers are still ongoing in northeast MD, and this along with a few additional thunderstorms will continue through the late afternoon. Elsewhere, very light showers east of US-50 are moving through the area, but not expecting thunderstorms outside of the immediate Western Shore area. Precipitation wanes early this evening, then dissipates by late evening as the upper low moves away. Another cool night as lows drop to the 40s. Winds veering northeast, then east tonight could bring in some lower clouds to northeast MD late in the night.

SHORT TERM /MONDAY THROUGH WEDNESDAY NIGHT/
High pressure moves across the region Monday, bringing dry conditions and high temperatures in the mid to upper 70s. Another area of low pressure approaches from the west Monday night, causing sky cover to increase and milder lows in the mid 50s to low 60s.

The middle of the week looks to be very unsettled as that area of low pressure slowly moves across the region, and a broad mid-level shortwave also moves overhead. Widespread showers and thunderstorms are forecast each afternoon Tuesday and Wednesday, with scattered showers and a few storms lingering well into the evening. Locally heavy rainfall is possible that could lead to a few instances of flooding. At this time, the severe threat looks to be low.

Cloudy skies keep highs in the upper 60s to lower 70s each day, though overnight lows will only drop to the upper 50s to 60s.

LONG TERM /THURSDAY THROUGH SUNDAY/
One upper low will be exiting the area Thu afternoon with ridging building Fri and the next upper trof crossing the area Saturday, although not as deep/strong as the one on Wednesday. CAPE looks minimal, so we're likely just looking at showers and not thunderstorms. Ridging build again for the second half of next weekend into early next week. Expect temps at or slightly below normal.

AVIATION /19Z SUNDAY THROUGH FRIDAY/
Scattered showers and a few thunderstorms continue around BWI and MTN through late afternoon, then precip wanes quickly this evening.
Could see a very light shower at IAD and DCA, but no impacts expected. Dry at MRB and CHO.

Winds turn northeast this evening, then east overnight, though very light and could be calm at many locations. This could bring in some lower clouds to MTN and BWI late tonight, though likely only for around 3-4 hours around sunrise. Any low clouds burn off by mid morning Monday.

VFR and dry conditions Monday as southerly winds return.

Unsettled weather likely Tuesday and Wednesday as a slow moving area of low pressure crosses the region. Widespread showers and thunderstorms are likely each afternoon Tuesday and Wednesday, with showers and a few storms lingering well into the evening. The strongest storms could produce sub-VFR conditions at any terminal, and could also produce gusty winds.

Showers Thu likely producing MVFR cigs.

MARINE
Scattered showers continue moving across the northern Chesapeake Bay this afternoon, with a few thunderstorms possible. Lightning strikes and small hail are the main threats with any storm. Showers/storms come to an end late afternoon into early evening.

Gusty northwest winds continue through late afternoon, then winds decrease quickly this evening. Winds turn northeast to east overnight, though generally light at 5 knots or less.

High pressure builds over the area Monday, but southerly channeling is expected to result in SCA conditions over much of the waters Monday afternoon into Monday night.

Unsettled weather returns to the area as a slow moving area of low pressure crosses the region. Widespread showers and thunderstorms are expected each afternoon Tuesday and Wednesday. The strongest storms could produce wind gusts of 35 knots or greater, in addition to lightning strikes. Special Marine Warnings may be needed for portions of the waters if these strong storms develop.

SCA conditions likely Thu into Fri.

TIDES/COASTAL FLOODING
A brief change to northwest winds today has dropped anomalies, though minor coastal flooding is still likely at sensitive sites in Annapolis and Straits Point at high tide tonight and Monday morning. Southerly flow quickly returns Monday and likely continues through mid week. Additional period of coastal flooding seem likely in the coming days.

LWX WATCHES/WARNINGS/ADVISORIES
DC...Coastal Flood Advisory until 3 PM EDT this afternoon for DCZ001.
MD...Coastal Flood Advisory until 3 PM EDT this afternoon for MDZ011.
Coastal Flood Warning until 3 PM EDT this afternoon for MDZ014.
Coastal Flood Advisory until 9 PM EDT this evening for MDZ017.
Coastal Flood Advisory until 5 PM EDT this afternoon for MDZ508.
VA...Coastal Flood Advisory until 3 PM EDT this afternoon for VAZ054.
WV...None.
MARINE...Small Craft Advisory until 4 PM EDT this afternoon for ANZ531- 532-538>540.
Small Craft Advisory until 7 PM EDT this evening for ANZ533>537-541>543.

toggle option: (graph/table)

Battery Point
Click for Map
Sun -- 12:28 AM EDT     Moonset
Sun -- 04:58 AM EDT     0.36 feet Low Tide
Sun -- 05:54 AM EDT     Sunrise
Sun -- 09:27 AM EDT     Moonrise
Sun -- 11:47 AM EDT     1.95 feet High Tide
Sun -- 07:25 PM EDT     0.51 feet Low Tide
Sun -- 08:09 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Battery Point, Gunpowder River, Maryland, Tide feet

Baltimore Harbor Approach
Click for Map
Sun -- 12:27 AM EDT     Moonset
Sun -- 02:34 AM EDT     -0.51 knots Max Ebb
Sun -- 05:05 AM EDT     0.00 knots Slack
Sun -- 05:54 AM EDT     Sunrise
Sun -- 08:53 AM EDT     1.05 knots Max Flood
Sun -- 09:28 AM EDT     Moonrise
Sun -- 12:21 PM EDT     -0.00 knots Slack
Sun -- 03:47 PM EDT     -1.03 knots Max Ebb
Sun -- 07:36 PM EDT     0.00 knots Slack
Sun -- 08:09 PM EDT     Sunset
Sun -- 10:07 PM EDT     0.49 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Baltimore Harbor Approach, Maryland Current, knots

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Dover AFB, DE,