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Forecast: Heavy Rain Today, Sun Returns Tomorrow

BOSTON — Rain, some of it heavy, is in the forecast for today, with the bulk of the rain falling before 3 p.m. There are flood watches in place for the coast and inland areas as well. The coastal flood watches are for mostly splash over during the time of high tide, while the watches inland are for street and urban street flooding.

The weather system causing the problems is now pushing into New England from the south. The heaviest of the rain will fall during the first half of the day, but showers and storms are also likely this afternoon. These situations can yield some severe weather. This is not a case where severe weather would be widespread, but rather it will be isolated and mostly of Boston.

The biggest issue today will be with the tropical downpours. The rain last night came down at over three inches per hour across New Jersey and this heavy rain can impact parts of our area today. Driving will be almost impossible in these torrential rains.

Winds will be gusty at times along the coast, but nothing so strong as to cause power outages. The quick hitting nature of these rains is what is so remarkable, not necessarily the total amount.

I am expecting one to three inches of rain statewide, but some areas that do see severe weather or a large thunderstorm could exceed these numbers. These storms can cause flash flooding to occur. Remember, if you do come upon a road that is flooded do not drive through it. You have no idea how deep the water might be and the waters can rise in moments.

The weather returns to sunshine and seasonable or slightly below seasonable temperatures Thursday and into the weekend. This weekend will also feature dry and comfortable air.

Wednesday: Showers, with thunderstorms also possible after 2 p.m. Some of the storms could produce heavy rain and frequent lightning. Highs in the 70s with muggy air.

Wednesday Night: Showers and thunderstorms likely early, then clearing by morning. Humidity levels will fall after midnight. Lows near 60.

Thursday: Mostly sunny and pleasant, highs in the mid 70s.

Friday: Mostly sunny afternoon, reading in the mid 70s.

Saturday: Sunny, highs in the upper 70s.

Sunday: A blend of clouds and sunshine. A pop-up late day storm possible. Highs 75-80.

Follow updates from David Epstein on Twitter @growingwisdom.

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