Thursday, December 23 



Weather 



Conditions 



(Daylight) 



Air: Medium visibility. Scattered clouds. Medium north- 

 west winds at 20 knots. 

 Sea: Calm. Small waves. Two- to 3-foot swells. 



Avgo Merchant Unchanged. 



USCG 1250: Strike force boards Avgo Merchant and opens hatches, 



Operations 1616: Strike force departs. 



USCGC's Vigilant and Bittersweet on scene entire day. 



Overflights 



0855 

 1035 

 1140 

 1257 



H-3. 



HU-16E. Mapping. Current measurements. Whale sighted. 



PA-23. Current probes. Photos. Two whales sighted. 



H-3. 



NASA Landsat. 



NOAA/USCG 

 SOR Team 

 Operations 



Personnel aboard both HU-3 overflights, as well as aboard 

 HU-16E. 



Other 0855-1140: Navy divers dive below slick and complete bottom 



Operations survey. 



AMSI overflight. 



Ship 

 Cruises 



NOAA/NMFS Delaware II cruise continues. 

 USGS Whitefoot cruise. 

 USCG Evergreen cruise.- 



Spill Total extent 90 miles with average width of 30 miles. Heavy 



Characteristics "pancake" concentrations extending 25 miles east of Argo 



Merchant. Light "pancake" concentrations further out 



surrounded by sheen. 



Coordination 

 Meetings and 

 Briefings 



11-11 



