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Heat advisory in Boston area extended as daily thunderstorm threat stretches into weekend

Next Weather: WBZ Evening Update For July 11, 2024
Next Weather: WBZ Evening Update For July 11, 2024 04:39

BOSTON - The National Weather Service has extended the heat advisory for most of Massachusetts through Wednesday.

Heat advisory Massachusetts

The advisory now stretches all the way to the coastline to include Boston and the North and South Shores. It's now scheduled to end at 8 p.m. Wednesday, a day later than originally expected.

WBZ-TV graphic CBS Boston

Again, if you are not in the shaded areas that does NOT mean that you won't experience some periods of high heat and humidity. The National Weather Service is simply highlighting the areas most at risk for heat indices between 95 and 100 degrees.

Heat wave, but no record heat

We will likely reach or exceed 90 degrees in parts of the Boston area each and every day through Friday. You need three consecutive days above 90 for an official heat wave.

Future heat index values for Wednesday will climb to around and perhaps exceed 100 degrees in several cities and towns. 

WBZ-TV graphic CBS Boston

The temperatures will not reach record levels, staying mainly in the low 90s, but combined with a persistently and oppressively humid airmass, each day will have "feels-like" temperatures nearing 100, especially in and just to the northwest of Boston. 

Beryl path

The main reason for extending the heat advisory and the hotter forecast later this week is that it now appears the remnants of Beryl won't have much impact on southern New England.

The center track of what is left of Beryl will move through the upper Midwest and into Canada later this week, several hundred miles away from our area. 

WBZ-TV graphic CBS Boston

Therefore, the shield of rain will remain quite a far distance away, tracking through upper New York state and northernmost New England.

In the Boston area there will be a daily, isolated threat for a few showers or thunderstorms but nothing widespread or long-lasting. We cannot completely rule out a thunderstorm each and every day through Saturday, but no day is expected to be a washout. 

WBZ-TV graphic CBS Boston

By Sunday, conditions improve precipitation wise; however, temperatures still remain on par with a heat dome to the west.

We will hone in on the timing of any showers or thunderstorms for Friday and the weekend as we get closer. Stay with WBZ-TV, and CBS News Boston for frequent updates.

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