Tropical Downpours Ahead
Posted by Chris Lambert
Scattered showers prevail this morning as wet weather gets underway. With a northeast wind, temps struggle to get out of the upper 50s and lower 60s. Showers become more numerous and heavier this afternoon, turning into widespread downpours this evening. Sorry folks, doesn't look good for the Sox game tonight as heavy rain takes over.
The bulk of the rain falls from 8PM tonight to 4AM tomorrow morning. A widespread 2-3" is expected with locally up to 4" possible thanks to the remnants of Tropical Storm Andrea. It's an amount of water that the larger streams and most rivers can handle, so I don't expect widespread large stream and river flooding from this. A flood watch is posted is for the smaller streams that can overflow their banks easier, as well as the potential for street flooding and flooding of poor drainage areas. Any time you pick up a quick 2-3" of rain, standing water and runoff become an issue. The flood watch goes through tonight and ends at 10:00 AM Saturday, although, it appears that the heaviest of the rain tapers off around sunrise on Saturday. Sure, a few showers linger until mid morning, but late morning, into the afternoon features mainly dry weather and temps jumping back into the 70s. Afternoon graduation parties and weddings look mainly dry!
This is mainly a rain event for us. Northeast winds only gust 20-30mph along the coasts of the South Shore and North Shore, although, higher winds are felt across the Cape and Islands as southerly breezes gust past 40mph overnight. Despite the stronger gusts on the Cape, this is not even close to the powerful wind events that we had with our winter storms. Coastal flooding is not a threat, although seas and surf do become rough.
So how about the second half of the weekend? Looking good Sunday, near 80 and just a 20% chance of a passing shower.