Our latest storm has arrived slowly, with the promise of very heavy rain overnight tonight and especially tomorrow morning.
For the immediate future, expect light to moderate rainfall to continue all day, with wind gusts topping out at 40 mph, but for the most part staying in the 20-25 mph range. Rain bands will continue to shift eastward, in from the ocean, as one look at the radar shows a long line of rain extending all the way down the east coast and along this essentially stationary cold front.
Then the real fun begins. As the storm slowly moves up the coast, we will find ourselves under the influence of some pretty heavy subtropical moisture. Translation, torrential rainfall. This looks to happen sometime overnight into early morning tomorrow. Totals in a 6 hour window could reach up to 6 inches. That is a tremendous amount of moisture in a small period of time. This is the period where I would expect the most serious flooding to occur.
Storm totals still look to be about 3-4 inches with some areas getting close to 7 inches, depending on where the heaviest bands set up. These rain bands will be reminiscent of hurricane rain bands, as they continue to rotate heavy rainfall and gusty winds into the area. Obviously, winds won't reach hurricane levels, but they will be quite gusty as the storm intensifies and really wraps into a tight circulation. By the end of this storm, Boston could end up with its 2nd wetest month ever!
I will post more on the storm later. Stay dry!
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