As expected, good radiational cooling led to a low of 47F last night, with sunny skies during the daytime (except a few cirrus) leading to a high of 75-76F, with a maximum wind of 18-19 kt so far though there could be another spike of wind tonight before the end of day 1. Southwesterly winds will be too strong for good radiational cooling tonight, but the low will occur at the end (Thursday 06z) as there is a cold front arriving tomorrow morning. With the strongest dynamics passing to the north, nocturnal inversion limiting low-level instability, and only modest moisture in a rather shallow layer, it looks to be a dry cold front with weak storms forming to the north, with a non-zero but rather low chance of anything at KSPS. Winds will be quite strong behind the front during the day tomorrow with sunshine and cold advection induced descent helping to mix the stronger winds aloft (up to ~25 kt) down to the surface, and also leading to much less of a warmup than today. It might be difficult to get much warmer than model guidance this time with such strong winds coming from still snow covered eastern Colorado. Winds will lighten just in time for better radiational cooling at the end (Thursday 06z) but not quite calm enough for ideal radiational cooling.
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| Source: PivotalWeather |
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