The roof of my house is pitched quite steeply. I just measured 16.5" of snow on the ground around my yard. There would be somewhat less than that "up on the roof"
..... I suppose if I were real careful I could climb on my belly, kind of shimmy up there and give it a tap. The ride down might be fun too!
Loosening the set screw on the wind cup shaft and repositioning the cups always worked for an extended period, even years, but eventually it has had to to done again. I believe that is the correct way to go about the fix, but reaching the anemometer which is more than 5' above the roof line is a bit dicey (and scary) (and stupid) while placing a foot on either side of the peak, holding on for dear life with one hand on the pole, reaching out over the side to the north completely outstretched, turn the little screw while hoping not to drop the allen wrench and etc. etc.
. Or take the whole pole assembly apart while perched up there with tired shaky legs and sore butt screaming to get this over with quickly. What a pain it the @##.
I should try to get some of that snow off at least the lower part of the roof with a snow rake. We are expecting a mild 45-50F heavy rain event late Sunday and Sunday night. The snow will absorb much of that water before runoff begins, creating a very heavy load for the roof to bear. The steep pitch of my roof protects me somewhat, but those with more flat roofs definitely should attempt to get heavy deep snow off the roof to avoid potential structural damage.