A ranar 18 ga watan Afrilu, "Arkansas" ya tashi zuwa Arewacin Ireland, inda ya horar da aikin bombardment na bakin teku, kamar yadda aka sanya shi ga rundunar bombardment na bakin teku don tallafawa Operation Overlord, mamayewar arewacin Faransa. An sanya ta zuwa Ƙungiyar II, tare da "Texas" da masu hallaka biyar. An sanya matukan jirgi masu lura da bindigogi na jirgin sama na wucin gadi zuwa VOS-7 masu tashi Spitfires daga RNAS Lee-on-Solent (HMS Daedalus). Ranar 3 ga watan Yuni, ta bar ta moorings, kuma a ranar 6 ga watan Yuni, ta dauki matsayi game da Omaha Beach. A karfe 5:52 na safe, bindigogin jirgin ya yi harbi cikin fushi a karon farko a cikin aikinta. Ta kai hare-haren hare-haren Jamus a kusa da Omaha Beach har zuwa ranar 13 ga Yuni, lokacin da aka motsa ta don tallafawa sojojin ƙasa a Grandcamp les Bains. A ranar 25 ga Yuni, "Arkansas"
An kai harin Cherbourg, don tallafawa harin Amurka a kan tashar jiragen ruwa; Jamus na bakin teku sun yi amfani da ita sau da yawa, amma ba su sami nasara ba. Cherbourg ya fadi ga Allies a rana mai zuwa, bayan da "Arkansas" ya koma tashar jiragen ruwa, da farko a Weymouth, Ingila, sa'an nan kuma zuwa Bangor, Wales, a ranar 30 ga Yuni.