NEW : Residents reported it turned black for five minutes , then disappeared . Severe weather caused significant damage in Greenwich , Connecticut . The mayor put it under state of emergency . The severe weather 's currently classified as a disaster .
NEW : Eyewitness said it turned black for five minutes , then cleared . Severe weather caused significant damage in Bridgeport , Connecticut . The mayor put Bridgeport under state of emergency . The severe weather 's currently classified as a thunderstorm .