The ER-2 flew to Barrow and did not go to the SHEBA ship. Cloud cover at the ship was broken until late afternoon when a front approached. Drizzle was reported at 00 UT. The ship radar recorded some broken clouds from 3-6 km until 23:30 UT when a thick cloud moved in. The radar also reported some broken cirrus from 8-9 km from 18 UT to 00 UT. The satellite image showed a front approaching the ship from the west. The low was still far north of the ship near the pole.
Barrow had low stratus cloud cover without any cirrus. Some of the coastline could be seen around Barrow on the satellite image.
The trajectories to SHEBA ship were from the southwest to westerly direction. The surface air came from the Bering Straight, while the 1.0 and 1.5 air came from the Arctic Ocean near the Siberian coast to the southwest. The higher level air, 3-9 km, came from central Asia farther west than the lower levels.
The trajectories to Barrow show two different flows. The surface winds were light so the surface air came from the local vicinity of Barrow. The 1.0 and 1.5 km trajectories show air coming from the northwest coast of Alaska on the Chukchi Sea. The 3-9 km levels radically differed from the lower layers, showing the air coming from central Asia far west of Barrow.
