Marine Weather and Tide Forecast for Boston, VA

NEAR TERM /THROUGH THURSDAY/
615 AM Update...

High level cirrus continue to stream over the southern portion of the CWA, and should through the morning hours. Forecast remains on track with dry and warm conditions today.

240 AM Update...

High level cirrus streaming over the Twin Tiers and NEPA have helped keep temps warm over the region, with current readings in the mid 50s to low 50s. Mid 30s are present across portions of the Madison, Otsego and Delaware counties as clear skies have let temps fall. Lows tonight should be in the low 30s to low 40s for most, with mid 40s in the Wyoming valley.

High pressure will dominate the weather pattern for much of this period. The center of the surface high and mid level ridge axis will continue to move eastward today, and will be east of the area by the afternoon hours. This will shift winds to southerly and allow warmer air to move in from the south. High temps this afternoon will climb into the mid 60s to low 70s, with the warmer temps across the valleys of the Twin Tiers and NEPA.
Overnight lows will be several degrees above normal, with temps in the mid to upper 40s across the region.

Continued WAA from the SWerly wind regime will pump very warm air for this time of year into the area. Highs will be in the mid to upper 70s across the area, with low 80s possible in the valleys across the Twin Tiers and NEPA. This is 15-20 degrees warmer than normal for our region. A weak shortwave will ride the edge of the ridge Thursday morning, that could bring a few isolated weak showers to areas along and north of the Mohawk Valley. Another shortwave could move through the area in the afternoon that may be able to tap into some instability and 0-6km shear, kicking off a few isolated thunderstorms. Some of the CAMs are showing this, but run to run consistency is lacking given the weak forcing and low moisture.

SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/
315 AM Update...

High pressure exits to the east Thursday night. Upper level ridging, increasing 850 temperatures mixing down to the surface, and deep southerly flow will allow temperatures to increase to above average values of low to mid 70 degrees Friday. A shortwave trough approaches the area Friday evening, bringing rain showers and possibly a few thunderstorms overnight Friday.
Chances for thunderstorms aren't very high due to lack of instability. Flash flooding from heavy rain isn't a large concern, with PWAT values between 1 to 1.5 and overall forecasted rainfall totals of a half inch to one inch over the course of 24 hours.

LONG TERM /SATURDAY THROUGH TUESDAY/
315 AM Update...

As the shortwave trough exits the area, leftover rain showers and slight chances for a few thunderstorms will last through Saturday afternoon. Although still slightly above average, northwest flow advecting cooler air into the area will bring high temperatures down into the low to mid 60s. High pressure returns for the rest of the long term period starting Saturday night, with deep upper level ridging for early next week.
Temperatures look to surge well above average and into the mid to upper 70s, with some valley areas potentially hitting 80 degrees, early next week.

AVIATION /12Z WEDNESDAY THROUGH SUNDAY/
VFR conditions are expected throughout the entire TAF period with high pressure overhead.

Outlook...

Tuesday night through Thursday night...Mainly VFR.

Friday through Saturday... Showers with possible restrictions.

BGM WATCHES/WARNINGS/ADVISORIES
PA...None.
NY...None.