Narrative:

While at necepah airport we gassed our airplanes and had lunch. After lunch we went back to the airport and checked WX. According to the report that day, the airports south of us were reporting improving conditions. A corporate plane that flew in also reported conditions improving south. We were headed for broadhead, wi. On the way, ceiling started coming down some but visibility wasn't bad. Just above madison the ceiling really dropped and the visibility went way down. I was watching the plane in front of me and it disappeared. I couldn't see the plane I was following turn around. When visibility went down, I was concentrating on the plane in front of me and lost my place on the map. Next thing I saw was an airport to my right. I knew from the size of the airport it had to be controled. Rather than turn around and try to fly through this WX, I chose to land. I didn't bother to circle the tower for fear I would fly in front of traffic. Not seeing any traffic moving, I elected to make am emergency landing. I landed on runway 22 on the approach apron slightly downwind, turned off into the grass and taxied to an FBO and tied the airplane where, after a couple of mins, I was greeted by many vehicles. From now on I plan to not fly in a group in minimal conditions. So I will be doing my own navigation, and will be giving extra consideration about even flying in such conditions.

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Original NASA ASRS Text

Title: AN SMA LOST HIS FORMATION IN LOW CLOUDS AND LANDED WITHOUT PERMISSION AT A CTLED ARPT.

Narrative: WHILE AT NECEPAH ARPT WE GASSED OUR AIRPLANES AND HAD LUNCH. AFTER LUNCH WE WENT BACK TO THE ARPT AND CHKED WX. ACCORDING TO THE RPT THAT DAY, THE ARPTS S OF US WERE RPTING IMPROVING CONDITIONS. A CORPORATE PLANE THAT FLEW IN ALSO RPTED CONDITIONS IMPROVING S. WE WERE HEADED FOR BROADHEAD, WI. ON THE WAY, CEILING STARTED COMING DOWN SOME BUT VISIBILITY WASN'T BAD. JUST ABOVE MADISON THE CEILING REALLY DROPPED AND THE VISIBILITY WENT WAY DOWN. I WAS WATCHING THE PLANE IN FRONT OF ME AND IT DISAPPEARED. I COULDN'T SEE THE PLANE I WAS FOLLOWING TURN AROUND. WHEN VISIBILITY WENT DOWN, I WAS CONCENTRATING ON THE PLANE IN FRONT OF ME AND LOST MY PLACE ON THE MAP. NEXT THING I SAW WAS AN ARPT TO MY R. I KNEW FROM THE SIZE OF THE ARPT IT HAD TO BE CTLED. RATHER THAN TURN AROUND AND TRY TO FLY THROUGH THIS WX, I CHOSE TO LAND. I DIDN'T BOTHER TO CIRCLE THE TWR FOR FEAR I WOULD FLY IN FRONT OF TFC. NOT SEEING ANY TFC MOVING, I ELECTED TO MAKE AM EMER LNDG. I LANDED ON RWY 22 ON THE APCH APRON SLIGHTLY DOWNWIND, TURNED OFF INTO THE GRASS AND TAXIED TO AN FBO AND TIED THE AIRPLANE WHERE, AFTER A COUPLE OF MINS, I WAS GREETED BY MANY VEHICLES. FROM NOW ON I PLAN TO NOT FLY IN A GROUP IN MINIMAL CONDITIONS. SO I WILL BE DOING MY OWN NAV, AND WILL BE GIVING EXTRA CONSIDERATION ABOUT EVEN FLYING IN SUCH CONDITIONS.

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.