Posted by Pete Bouchard
Heavy rain is on the move. As of this typing, it's heading for ALL of Central and Eastern Mass.
If you're a weather radar geek, you probably already know this. If you're not, the water will come down out of the sky like you read about (or in this case, type in a blog).
Rainfall rates with this batch are up to 2-3" per hour. Goes without saying that there might be flooding tonight: at the intersections, underpasses, parking lots, Routes 1 & 3, and even in your basement if it is consistently damp.
Flood watches/warnings are flying through the night and into tomorrow AM. All told, the rainfall will amount to 2-4 inches. Higher amounts near 5 are possible when the last drops fall and the puddles drain on Saturday morning. There might be two bullseyes: one around Worcester, and another in SE Mass. anywhere from Middleboro to Hyannis. In Boston, it's been a while since we've seen over 2" of rain in a 24hr. period, but this one may be that kind of storm:
In terms of wind, this storm will not be more than a gusty nor'easter. However, surf will certainly come up and stay up through Saturday. In concert with the waves: beach erosion..an ongoing issue in ANY coastal storm.
The remants of Andrea are in a hurry...to move on. Forward speed has increased to 25mph, which is pretty swift for a low pressure system. That bodes well for the weekend and Saturday, in particular. While there will be SOME sun tomorrow - especially late day - Sunday is the prize-winner of the weekend. Pleny of blue, warm temperatures and just enough humidity to make it comfy-in-the-evening-without-a-sweater.