A FRIEND OF THE PILOT REPORTED THAT IT WAS RAINING AND FOGGY AS SHE DROVE HIM TO THE DEPARTURE AIRPORT. SHE ALSO SAID THAT WORK WAS VERY IMPORTANT TO THE PILOT, AND THAT HE FELT THAT HE HAD TO GET TO WORK. WITNESSES REPORTED THAT AT THE TIME OF THE ACCIDENT IN THE IMMEDIATE AREA, THERE WAS WIND, RAIN OF VARYING INTENSITY, LOW CLOUDS AND REDUCED VISIBILITYAVERAGING BETWEEN 1/4 AND 1 MILE.