9/01/11 Meteorological Fall is here..

Statistics for Boston for the summer of 2011.

Forecast

Today - A few morning clouds will give way to sunshine. Dry air is still in place for today and tonight with a high of 75.

Tonight - A cool night, low 58. Coldest in the valleys with upper 40s.

Friday - East wind off the ocean will keep temperatures low, in the lower 70s with just a few clouds.  Humidity rises late in the day.

A busy weather map for 9/01.  High pressure in Atlantic Canada will nudge down into New England to bring cooler temperatures today and Friday.  A low pressure area over Minnesota will influence our weather late on Saturday into Monday.  Low pressure over the Gulf of Mexico could become a tropical storm and a Low off the east coast of the US will track northeastward and not influence our weather.

Labor Day Weekend Forecast

Saturday looks to be the best of the weekend days with a warm front pushing through early in the morning. This will bring in more humid conditions and temperatures back into the lower 80s. A slight chance of a shower Saturday morning is possible, with some clouds, but not a washout.

Sunday will be cloudy and humid. Showers may pop up on and off throughout the day. A better likelihood in Western Mass. Highs near 80.

Monday is a tricky forecast I must admit.  Either way, it looks like rain, uncertain as to how much. It depends on several factors. A cold front approaches from the Great Lakes during the day on Monday.  Some models tap into moisture from a tropical system in the Gulf of Mexico, which would bring more rainfall. Some do not connect, but bring in scattered storms. Another model brings an area of low pressure up the coast ahead of the front.

So for now I will just say, it is going to rain on Monday and continue into Tuesday.

Tropical Outlook

Katia is a hurricane in the mid Atlantic Ocean and will still be north east of Puerto Rico on Labor Day.  A disturbance in the Gulf of Mexico could become Lee and bring much needed rain and cooler temperatures from Florida to Texas during the weekend. An area of low pressure off the east coast, could develop into a tropical cyclone and move near or past Newfoundland.  What could become Lee, may stick around in the Gulf of Mexico for many days.