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Another tornado warning issued for parts of Western Mass.

The hot and steamy weather conditions enveloping the state may generate powerful thunderstorms later tonight. –Jonathan Wiggs/Globe Staff/File

A tornado warning has been issued for parts of Massachusetts until 7:15 p.m., after two other tornado warnings for parts of Western Massachusetts had expired.

National Weather Service forecasters also warned that the storm heading toward Boston will produce wind gusts of up to 70 miles per hours as they arrive in the city around 7 p.m.