A flat ridge of high pressure will stick around for the rest of the week, assuring us of dry and seasonable conditions for the next several days. A trough of low pressure will back down from Montana toward northeastern Nevada, but all that will do is cool us off a couple of degrees and keep us locked into the dry flow coming across the region. High temperatures through the weekend will be near the averages for this time of year, in the upper 80s to low 90s.
Matt wondered: “Why do the nighttime lows (in Reno) seem to be less low than they used to be and, my main question, why does it seem that there is often a smaller difference between the highs and the lows than there used to be? I’ve been pondering this question for some time.” Ponder no more. The reason is almost entirely due to urban heat island effect… especially in the area around the Reno airport, which is where the official temperatures have been recorded since 1942. Tomorrow, I’ll tell you how the Urban Heat Island works.