size (inhaletion) hazard, ge Ab H plus 4 heurs, lagoon traffic restriction wis lifted and by H plus 7 hours, unrestricted traffic botween inhabited islands and islands on the veasvern side of the atell was authoriacd. he The delayed fall-out ab Hi plus 1O hours was due to rapid changus in whe upper wind directions, conmencing at U plus 3 hours. The changes wore fron 2 vericble wind condition at shot time above 20,000 feet to a normal trade wind patterr: i. By "ITEM" plus 1 day, radioactivity on contaminated islands southwest anc wost of zero point had decayed by a factor of 10, Unrestricted reentry was peor- mitted to islands on the eastern half of the eboll except IMIGEBI, EBERIRU, and RUNIT,