Forsyth Missouri – Saturday, November the 26th marked a turning point on what had been a rather nice regime. What had been a warm and fuzzy environment became, quite suddenly, a blustery cold shoulder that was much more in line with the time of year. It was, after all, late Fall and Old Man Winter was a knocking at the door.
While I was dozing a rainy and overcast afternoon away, long about 3:00 pm, the winds which had been idling out of the east suddenly shifted into high gear from the north! I awakened to find the mercury dropping rather smartly from a nice 59F to a chilly 43F in rather short order. Ah, I thought at the time, the party she is over.
Note the abrupt change in the temperature profile at 3PM. This clearly marked the passage of a trough behind which cold Canadian air filtered in. A steep pressure gradient aided in helping to keep the winds gusting up to 15 mph with a sustained flow at about 6 mph.