Originally Posted by
peekay4
Not sure what you mean there... when flying a visual approach procedure, one cannot be in IMC by definition, i.e., must remain clear of clouds and maintain visual with the airport environment and/or preceding aircraft.
The weather minimums:
WEATHER MINIMUMS
SFO Ceiling 2100'- VIS 5
OR SFO Ceiling 1000' - VIS 3 With VIS 5 in Eastern Quadrant (030^ Clockwise 120^) and San Mateo AWOS Ceiling 2400' - VIS 5 [San Mateo AWOS info available from SFO Tower. If San Mateo AWOS inop, use San Carlos (KSQL) ceiling of 2400'-VIS 5; San Carlos ATIS on 125.9]
Let's say the weather is 2,800 overcast, visibility 8 miles. ACME AIR checks in passing CEDES and requests the FMS visual. The clearance, "Descend via the track and altitudes of the FMS visual. Expect clearance for the visual passing JANYY."
Why else would they have weather minimums well below the altitude at ARCHI?
Pure speculation on my part. :-)