Do the explosions and smoke blot out the sun? Turn the night into day? Resemble a thunderstorm? Yes to all, I expect.
Spoiler, as described by TVTropes:
"During the Siege of Malta in WW2, the air defence of the Grand Harbour in Valetta needed beefing up. So every heavy AA gun on the whole island was sent a range, elevation and azimuth that would allow it to put an airburst round in a certain point of Grand Harbour's airspace. During a raid, if they received the signal 'Grand Harbour Barrage', they would immediately stop what they were doing, switch to the pre-set coordinates, and unload as many rounds as they could until told to stop. For the German and Italian bombers, it was yet another case of it being not so much the bullet with your name on it, more the nine hundred and ninety-nine addressed 'To Whom It May Concern'."