Hottest Yet To Come
Posted by Chris Lambert
It was nice to have a good sea breeze to help us out as highs topped 90 in Boston by late-morning, then fell back into the 80s for the afternoon. A few showers also managed to pop north and west of the city this afternoon, but the stronger/severe storms have been limited to Central New England so far. The highest instability is just north of the Mass/NH border, and that's where I expect more storms into the early evening hours. A shower or thunderstorm could drift into the Metrowest area, suburbs, and near Boston, but the chance is lower, and the strength, likely weaker.
That sea breeze won't kick in tomorrow for the city, and that means the heat is on! In fact, tomorrow will be the hottest day of this heat wave as highs run 95-100 degrees. 98 in Boston will tie the record for the date, and the 95 in Worcester would be good enough to tie a record there as well. The risk of storms is low thanks to relatively warm air aloft that tends to prevent thunderstorms from firing. Factor in the humidity tomorrow, and it'll feel more like 104-109 in the mid afternoon. For that reason, an excessive heat warning is in place across much of the area away from SE Mass. The Cape and Islands will be the place to be with temps running 85-90.
The heat is still with us into Saturday afternoon as highs run into the lower 90s. However, as a cold front approaches, storms become more widespread from mid afternoon, into the evening. The potential is there for some of these storms to produce damaging wind gusts and hail, so we'll have to keep an eye on it.
On the other side of the front... dry weather, lower humidity and temps near 80 move in for Sunday. Yah!
Stay cool out there tomorrow.