CIMSS Satellite Blog

GOES-15 Water Vapor (6.5 µm) images [click to play animation]

GOES-15 (GOES-West) Water Vapor (6.5 µm) images (above) showed the southeastward migration of an upper-level low across the North Slope and the eastern Brooks Range of Alaska during the 21 June – 22 June 2016 period. A potential vorticity (PV) anomaly was associated with this disturbance, with the dynamic tropopause — taken to the the pressure of the PV 1.5 surface — being brought downward below the 600 hPa pressure level over northern Alaska. Several inches of snow were forecast to fall in higher elevations of the eastern portion of the Brooks Range.

As the system departed and the clouds cleared on 22 June, GOES-13 Visible (0.63 µm) images (below) did indeed show evidence of snow-covered terrain on the northern slopes and highest elevations of the Brooks Range.

GOES-15 Visible (0.63 µm) images [click to play animation]

from CIMSS Satellite Blog http://ift.tt/28WebQC