Another Deluge On the Way

Today most certainly felt more like fall than late July. In fact, Boston's high temperature of 67 corresponds with the average high we see on October 1st! Cool air will be the least of our problems however, as a stalled off shore frontal boundary will allow a developing low pressure to push up the east coast and drench us tonight and through most of tomorrow.

A developing low pressure, currently situated off the coast of North Carolina will ride the stalled front due north, tapping into some tropical energy being provided by a cluster of thunderstorms further out in the Atlantic.

This topical energy will create a very heavy rain sheild that will rotate back into the area starting tonight. Latest models show some really heavy rain falling, especially along the south shore and coastal areas.

With the rain totals like this and the tropical downpour narture of the precipitation, the NWS has issued a Flash Flood Watch for much of eastern MA starting tonight and lasting through tomorrow afternoon.

Take a look at one models loop of the expected rainfall through 2AM. Definetly a washout!
Loop of Friday rain

Bottom line, tonight and tomorrow are not good days for outdoor activities. The sox will be lucky to finish their game tonight. Heavy rain won't start until 10/11 tonight and thankfully we should see some drier weather (but still cloudy) by late tomorrow afternoon.