Swing and a Miss...
As you all know, I was forecasting a record for Boston today and it clearly didn't happen. This was not done for ratings or hype...I felt we would have a warm enough airmass, a good enough wind direction and ample sunshine. The first materialized, the second did as well but the third didn't work out. If we had a few more midday hours of sun it would have been very close...if, if , if.
A coldfront is marching our way from the west...convection is popping out ahead of it and will weaken as it works into Southern New England but some leftover showers and rumbles will be possible later tonight. The surface front will be trough by tomorrow morning so temps won't rebound much...especailly with a sea breeze developing and mainly cloudy skies...mid to upper 50s coast and lower 60s inland. An area of low pressure will form along the front to our south as a shortwave at 500mb cuts-off...this will induce rapid cyclogenesis later tonight. This storm will have good inflow with tentacles reaching down to Florida for moisture and the rain will break out tomorrow night and will be heavy at times Wednesday morning. With high pressure to our north and the low tracking over SE Mass, a strong pressure gradient will produce gusty NE winds and thus a cold, windswept rain...yuk! The overrunning rain should end by midday Wednesday but the upper level low and a surface coldfront / trough will provide a good environment for afternoon convective type showers to form and fill back in. The cut-off will open up and lift north of us and more zonal flow will take over for the end of the week. Another slow moving, potential soaker, will threaten our weekend (Saturday night into Sunday).
