Marine Weather and Tide Forecast for Calvert Beach, MD

NEAR TERM /THROUGH TONIGHT/
High pressure over the Chesapeake Bay has allowed for winds to diminish a lot compared to yesterday and early this morning.
Below average temperatures are still expected tonight.
Temperatures will run about 15 degrees below average tonight with widespread teens and lower 20s.

A thickening cloud mass in the mid-levels and upper levels has evolved this afternoon and will linger into early evening.
Although we can't rule our a flurry or two across central Maryland and northern Virginia, nearly all areas will be dry and very cold.

SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/
High pressure will be moving to the east and away from the region Tuesday. A southwest to southerly wind will develop and eventually bring northward some milder air and higher dewpoint temperatures, but not until Wednesday. Until then and through the day Tuesday and Tuesday night, Arctic air will remain in place and temperatures will be nearly 10 degrees below average Tuesday into Tuesday night. Highs Tuesday will only reach the middle 30s to lower 40s, while we can expect Tuesday night's temperatures to drop into the lower to middle 40s. As for Wednesday, temperatures will be 5 to 10 degrees below average to start the day, but an increasing southerly flow should quickly bring our afternoon temperatures up to near average with dry conditions. Highs Wednesday middle 40s north to lower 50s south.
Wednesday night temperatures will drop into the middle 20s.

LONG TERM /THURSDAY THROUGH MONDAY/
Thursday will start out dry as surface high pressure drifts offshore. Southerly flow will usher in warmer temperatures and increased moisture, yielding increased cloud cover and high temperatures in the 50s (40s mtns). A low pressure system tracking across the Great Lakes and into Canada will push multiple fronts through the forecast area Thursday night and Friday. Rain moves into the area Thursday night with a soaking, beneficial rainfall expected overnight. Low temperatures will be in the 30s to low 40s with those in the mountains dropping into the 20s. A cold front pushes through the forecast area Friday morning with a secondary front pushing through during the day.
As a result, high temperatures will be in the 30s and 40s with overnight lows in the teens and 20s on Friday.

Surface high pressure builds over the region Friday and Saturday with dry conditions expected both days. High temperatures on Saturday will be in the 30s and 40s with overnight lows in the 30s as temperatures moderate. Precipitation chances return for the western portions of the area on Sunday as a cold front approaches from the west.

AVIATION /19Z MONDAY THROUGH SATURDAY/
High pressure will provide dry and very cold conditions tonight through Wednesday night. VFR conditions through Wednesday night.
Winds will be light and variable this evening, becoming southerly overnight. Remaining light and southerly Tuesday and Tuesday night. Winds will become southwesterly 5 to 10 knots Wednesday into Wednesday night. There could be a brief shift to northwest with a passing dry weak front. For the most part, we can expect gradual warming temperatures with a southerly wind ahead of midweek front.

Sub-VFR conditions are possible Thursday afternoon as a front approaches the terminals with restrictions likely during precipitation overnight. Southerly winds gust 15 to 25 knots Thursday afternoon and into the overnight. Restrictions linger through Friday morning with VFR conditions returning Friday afternoon. Gusty northwest winds are expected on Friday.

MARINE
Sub-SCA conditions through Tuesday evening. SCA conditions could evolve Tuesday overnight into Wednesday with high pressure to the east and a front well to the west that could enhance a southerly flow.

Small Craft Advisories are likely beginning Thursday afternoon as southerly winds gust 20 to 30 knots through the overnight.
Winds shift to northwesterly Friday morning and are expected to stay above SCA criteria through Friday afternoon before diminishing.

LWX WATCHES/WARNINGS/ADVISORIES
DC...None.
MD...Low Water Advisory until 3 PM EST this afternoon for MDZ008.
VA...None.
WV...None.
MARINE...Low Water Advisory until 3 PM EST this afternoon for ANZ530>532-535-536-538>540.