Marine Weather Net

Tidal Potomac from Indian Head to Cobb Island MD Marine Forecast


TONIGHT

E
WINDS
5 KNOTS

MON

E
WINDS
5 KNOTS

MON NIGHT

SE
WINDS
5 KNOTS

TUE

SE
WINDS
5 KNOTS

The Marine Weather Forecast In Detail:
ANZ536 Forecast Issued: 736 PM EDT Sun May 24 2020

Tonight...E Winds 5 Kt. Waves Less Than 1 Ft. Patchy Fog After Midnight With Vsby 1 To 3 Nm.
Mon...E Winds 5 Kt. Waves Less Than 1 Ft.
Mon Night...Se Winds 5 Kt. Waves Less Than 1 Ft.
Tue...Se Winds 5 Kt. Waves Less Than 1 Ft.
Tue Night...Se Winds 5 Kt. Waves Less Than 1 Ft.
Wed...Se Winds Around 5 Kt. Waves 1 Ft.
Wed Night...Se Winds 5 To 10 Kt. Waves 1 Ft. A Chance Of Showers And Tstms.
Thu...S Winds 5 To 10 Kt. Waves 1 Ft. A Chance Of Showers And Tstms.
Fri...W Winds 5 To 10 Kt. Waves 1 Ft. Showers And Tstms Likely . Winds And Waves Higher And Visibilities Lower In And Near Tstms.
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Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
931pm EDT Sunday May 24 2020

Synopsis
High pressure centered off the New England coast will remain wedged over the area through Memorial Day. The high will shift southward toward midweek before shifting further eastward into the Atlantic late in the work week. A cold front is expected Friday, but could be preceded by some tropical moisture Wednesday and Thu.

Near Term - Until 6am Monday Morning
Clouds will hold in place overnight and lower. While it will remain dry, patchy fog is expected, mainly west of I-95. Will need to monitor fog development, as it potentially could be thicker and more widespread. At this point have visibility dropping to about 2 miles in the Shenandoah Valley and western counties, but not making it far enough east to impact the DC/Balt corridor.

Short Term - 6am Monday Morning Through Tuesday Night
Low level flow remains easterly through Monday morning before taking on a more southeasterly component. Pesky clouds will hang around through early afternoon before starting to loosen their grip, becoming more broken to scattered in nature with peaks of sun possible. As mid to upper ridging builds aloft on Monday with the surface high to our east northeast, moderating temperatures are expected with highs in the mid to upper 70s area wide. The ridging aloft should act to suppress much in the way of any shower and thunderstorm activity, but with less cloud cover and a bit more instability once again, will carry low end chance POPs along the Alleghenies should terrain circulations help overcome this.

Dry conditions expected to persist Monday night through Tuesday night as the high over the Atlantic shifts further southward and winds locally turn out of the south. A continued moderation in temperatures is also expected, with more sunshine during the day on Tuesday. Highs on Tuesday will rise into the upper 70s to lower 80s with a slight increase in humidity. Lows both Monday/Tuesday night will be mild in the lower 60s.

Long Term - Wednesday Through Sunday
A cold front pushes in from the Midwest Friday, and with increasing warmth and humidity, probabilities are good that it will have decent instability to work with. Something to watch for severe potential Fri. In advance of that though, some model members of GFS and Euro ensembles show tropical moisture now over Florida heading into the Mid Atlantic in the Wed/Thu timeframe. Not a lock for heavy rain with many members not showing that, but something to watch for heavy rain potential.

Marine
Easterly breezes will remain below SCA (Small Craft Advisory) thresholds tonight through Memorial Day as high pressure to our northeast continues to wedge itself over the region. Fair weather expected to continue Monday night through Tuesday night as winds remain light out of the south.

Overall wind field should remain under thresholds during the midweek, but a brief wind gust possible near pop-up showers/thunderstorms.

NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories
DC...None. MD...None. VA...None. WV...None. MARINE...None.