Marine Weather and Tide Forecast for Galesville, MD

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/
Cloud cover is increasing this evening as a warm front approaches from the southwest. High clouds will become thicker overnight before thinning out by around daybreak Friday.

Overnight low temperatures will not be quite as cold as last night, dipping into the 40s, but this is still several degrees below normal for this time of year.

SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/
As surface high pressure shifts offshore, return flow ushers in warm air from the south and increased moisture. A warm front is forecast to lift through the forecast area on Friday as a cold front approaches from the west. Gradually warming temperatures can be expected Friday and Saturday, along with increased cloud cover. High temperatures on Friday will be in the 70s for most with those at higher elevations staying in the 60s. On Saturday, high temperatures will be in the 80s for most with those at higher elevations staying in the 70s.

In addition to gradually warming temperatures, a low pressure system will track NE from the Great Lakes on Saturday with the associated cold front set to approach the forecast area from the Ohio River Valley. As the cold front approaches, precipitation chances in the northwestern portions of the forecast area increase.

LONG TERM /SUNDAY THROUGH THURSDAY/
Deep ridging just off the Southeast U.S. coast on Sunday will drift offshore into the start of next week. The strength of this ridge likely keeps an approaching cold front well to our north, though a weak disturbance aloft could result in a few showers west of the Blue Ridge Sunday afternoon. Otherwise, a mostly dry and warm end to the weekend as highs reach the mid 70s to low 80s.

A strong upper trough and associated surface low pressure will move across the Midwest/Upper Great Lakes on Monday. As the low pressure system pulls away into Canada, the attached cold front is forecast to move across the Mid-Atlantic Monday afternoon into Monday night.
Given weak forcing and lingering dry air, rain chances look to be on the lower side at this time (30-40pct). High pressure builds in quickly behind the front Tuesday into Wednesday, likely bringing another few days of dry conditions.

Temperatures are forecast to be above normal into next week. Highs reach the mid to upper 70s each day, with 60s in the mountains, and around 70F along the MD/PA border. Overnight lows mostly in the 50s, with 40s in the mountains.

AVIATION /00Z FRIDAY THROUGH TUESDAY/
VFR conditions are expected through Saturday as high pressure shifts offshore. Winds become light and variable tonight before shifting to southerly on Friday, gusting 15 to 25 knots in the afternoon. LLWS is possible Fri night as an LLJ pivots overhead.
Winds diminish slightly on Saturday, blowing out of the southwest at around 10 knots.

VFR conditions are likely Sunday into Monday. Scattered showers possible Monday evening into Monday night, but coverage and intensity look to be low enough to prevent any significant disruption to the local terminals.

MARINE
A few southerly wind gusts to 15-20 knots are possible overnight mainly over the main channel of the Chesapeake Bay as high pressure moves offshore. Winds increase further Friday morning due to southerly channeling with a Small Craft Advisory in effect beginning at 10 AM. Southerly winds blowing between 15 and 20 knots with gusts up to 25 knots are expected. SCA criteria condtions likely persist through early Saturday evening.

Favorable marine conditions Sunday into the start of next week as high pressure south of the area remains in control. Winds are expected to shift from north to east, then southeast on Monday, all at 5-10 knots. A slight increase in winds is possible Monday night as gusts increase to around 15 knots, especially in the middle Chesapeake Bay.

LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory from 10 AM Friday to 8 PM EDT Saturday for ANZ530>543.