 Attacks on Avonmouth on 16/17 and Swansea on 17/18 January were the first to these targets.Records show that in the Portsmouth operation 19 of II./KG 55's He 111s dropped 18 LC 50 flares, eight SC1800, seven SD1400 ("Sprengbombe Dickwandig" bombs which had some penetrative power for armour-piercing purposes) and seven SC1000 bombs.Severe weather shut down II./KG 55's operations at its Chartres airfield until March 1941.