by these ships was due to a "shine" éffect from the YANKEE cloud, 9. Detailed radsafe information ani pertinent weather factors are presonted in Tab 0, (f) NECTAR L. NECTAR midelevel winds were southwesterly to south southwesterly to 45,000 feet ant westerly to 60,000 feet. The tradewinds were east southeasterly to 20,000 feet. 2. NECTAR was a barge (water surface) shut in the IVY MIKE crater (approximately 100 feet of water) off Teiteripuchi at Eniwetck. 3. The task force fleet was south of the atcll at shot time end re-entered aftor H-hour for an emergency evacuation capability, & shot. No significant radiological problems arose from this Close-in contamination was limitad essentially to the islanmis north of YVONNE, ° 5. the NECT.2 shot. Extensive weather (cloud cover and rain) preceded «at Hehour « large rainstorm wes over the lazoon between ground zero ani the southern islands; however, sround zero and the northern islands were relatively clear below the bases of the low weather clouds (i.e. clear from the surface up to about 2,000 feet). & Weather and clouds extending in layers up t> abcut 50,000 feet persisted for at least the first six hours after shct tine. 7. shot day, Moderate continuous rain cecurred thrcushcut the all cf the weather observed on shot cay was attributable to the prevadling genertl weather situation, primarily the strong southerly wince flow. 8. « unique feather of the NECT..4 Racsafe plan was the stationing of a dustroyer at Ujeleng in the event an evacuation -f tnat wok 15