Narrative:

While VFR en route from iliamna, ak to anchorage, ak. I briefly encountered IMC conditions. I climbed through the 500 ft of overcast and, for the next 30 NM, I had only limited glimpses of the terrain below. Previously, I had taken off from new stuyahok, ak, (pail) under mostly clear and sunny skies. I planned a fuel stop 85 NM to the east at iliamna. I flew at 2500 ft below a thin broken cloud layer. While departing pail, an arriving pilatus pc-12 issued a pilot report to the FSS. The report was cloud tops at 4000 ft, east toward mt iliamna and clear from there to anchorage. I had already checked the anchorage WX with FSS and knew it would be clear. Since I could see blue sky above me and sun streaks on the surface below and around me, I began a climb from my current cruising altitude of 3500 ft. I briefly encountered IMC conditions and broke out at about 4200 ft under clear, sunny skies. As I climbed higher to clear terrain to the east, I discovered that I had only limited contact with the ground. A safe emergency landing, in the event of a power plant failure, would be difficult at best. This condition persisted for approximately 30 NM. About 20 NM west of mt redoubt the cloud cover dissipated. I had climbed to 9500 ft to increase my safety margin. I continued on to anchorage without incident.

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Original NASA ASRS Text

Title: A C206 PLT ENCOUNTERED IMC, WHILE VFR, IN ZAN AIRSPACE.

Narrative: WHILE VFR ENRTE FROM ILIAMNA, AK TO ANCHORAGE, AK. I BRIEFLY ENCOUNTERED IMC CONDITIONS. I CLBED THROUGH THE 500 FT OF OVCST AND, FOR THE NEXT 30 NM, I HAD ONLY LIMITED GLIMPSES OF THE TERRAIN BELOW. PREVIOUSLY, I HAD TAKEN OFF FROM NEW STUYAHOK, AK, (PAIL) UNDER MOSTLY CLR AND SUNNY SKIES. I PLANNED A FUEL STOP 85 NM TO THE E AT ILIAMNA. I FLEW AT 2500 FT BELOW A THIN BROKEN CLOUD LAYER. WHILE DEPARTING PAIL, AN ARRIVING PILATUS PC-12 ISSUED A PLT RPT TO THE FSS. THE RPT WAS CLOUD TOPS AT 4000 FT, E TOWARD MT ILIAMNA AND CLR FROM THERE TO ANCHORAGE. I HAD ALREADY CHKED THE ANCHORAGE WX WITH FSS AND KNEW IT WOULD BE CLR. SINCE I COULD SEE BLUE SKY ABOVE ME AND SUN STREAKS ON THE SURFACE BELOW AND AROUND ME, I BEGAN A CLB FROM MY CURRENT CRUISING ALT OF 3500 FT. I BRIEFLY ENCOUNTERED IMC CONDITIONS AND BROKE OUT AT ABOUT 4200 FT UNDER CLR, SUNNY SKIES. AS I CLBED HIGHER TO CLR TERRAIN TO THE E, I DISCOVERED THAT I HAD ONLY LIMITED CONTACT WITH THE GND. A SAFE EMER LNDG, IN THE EVENT OF A POWER PLANT FAILURE, WOULD BE DIFFICULT AT BEST. THIS CONDITION PERSISTED FOR APPROX 30 NM. ABOUT 20 NM W OF MT REDOUBT THE CLOUD COVER DISSIPATED. I HAD CLBED TO 9500 FT TO INCREASE MY SAFETY MARGIN. I CONTINUED ON TO ANCHORAGE WITHOUT INCIDENT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.