For the VA-73-KA:
Operational -30° C to +55° C
Optional Range -40° C to +55° C
Operational 72 km/hr gusting to 97 km/h
Survival 200 km/hr (stow mode)
The lowest recorded temperature in Anchorage was -39 F
in 1975 which is -39.4 C. That is rather close to the specification which will probably cause some problems. For wind 72 km/hr is 45 miles/hour which sucks. One blizzard will force the dish to be stowed.
Hawaii. beam 351, uses the Anchorage gateway while nearly all of Florida, which includes the area near Disney World, uses the Juneau gateway. I do not anticipate weather negatively impacting both sites equally at the same time.
If a fiber optic cable was cut, then Exede would loudly proclaim it because they could blame someone else for the outage.
NORAD would not publicize their problems because they would hide behind national security. Also NORAD does not use Ka-band microwaves which are more readily absorbed by water vapor than the lower frequencies they use.