Funny, I was getting ready to give an update on my sonic anemometer and just this morning had an anomaly.
First; around November 9, 2021, I replaced my existing anemometer (cups) with the Davis sonic. It is mounted on a tri-pod on the roof of house, about 350 feet from shore of Lake Huron. So far, the winter has been typical with wind and snow. Had some freezing drizzle a couple weeks ago and figured the previous anemometer would have frozen, sonic has performed very well – until this last night through this morning.
Present; Winter storm came in last night; high winds, snow, and blowing snow. The sonic anemometer reporting “froze” at 3.2 mph and a direction of 180 degrees. This started approximately 9pm last night and lasted through just after 9am this morning. At which time everything appears to have returned to normal – speed and direction.
I blew approximately 6 inches of fresh snow off the drive this morning around 7am and can report that there was a stiff wind out of the NNW while the sonic reported a S wind at 3.2 mph. No way, just sayin.
Anyway, again seems to be reporting fine and had been until this anomaly. Will keep an eye on it.