Decent but not
ideal radiational cooling led to a cool down to a low of 45F last night,
followed by full sunshine and light winds leading to a warmup to 69F (probably very close to 70F). A cold
front will produce rather strong winds tonight which will gradually weaken but
not enough for good radiational cooling. Cooling will instead be largely driven
by large-scale cold advection with a not-so-strong nocturnal inversion boundary
layer even with clear skies, which models usually handle rather well. With cold
advection stopping tomorrow and winds weakening, it will warmup decently
tomorrow with full sunshine, perhaps slightly warmer than most models, though the
strength of the air mass currently to the northwest that will be advected into KSPS
suggests that it may not overshoot models as much and will be substantially cooler
than today. The burst of winds expected with the cold front will be mostly subsiding
by the start of the period (06z tonight) but might still be strong enough to be
the maximum wind of day 6 (and nighttime wind maxima tend to be tricky), though
the maximum wind could also occur late tomorrow morning when the sunshine helps
mix down the leftover wind from aloft before high pressure approaches, causing winds
to weaken in the afternoon and evening.
| Source: PivotalWeather |
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