Colin W Kingsbury wrote:

There is no way visibility goes from adequate VFR to low IMC in less than
sixty seconds. I'm calling bull**** on this.

Well, you've obviously never lived near a coast of had warm moist air
move over snow. I've had my house go from sunshine to completely fogged
in within this amount of time, and I live on top of a hill nowhere's
near water. Snow can cause fog very quickly under the right conditions.

I personally think the pilot should have seen this coming, however, it
is amazing how fast conditions can change. Even so, usually the
conditions that might cause these changes can be known in advance, which
I'm assuming is your fundamental point - and with that I agree.


Matt