Tuesday, April 8, 2025

Day 6 of San Antonio, TX (KSAT)

Ideal radiational cooling led to a low of 44F last night, though it actually didn’t cool down as much as it could have. Full sunshine led to a rapid warmup to 78-79F so far, a bit lower than some of the model guidance, surprisingly. There was surprisingly 11 kt this morning with southerly winds, despite surface high pressure dominating. Clear skies and very dry air will lead to good radiational cooling again tonight, but not quite as cool as last night with a little more southerly wind slightly inhibiting radiational cooling slightly, though the winds are marginal making quick dips possible. I suspect the HRRR is a bit cool. A slightly stronger southerly wind tomorrow with weak warm advection will lead to an even hotter day tomorrow compared to today, with the high likely near to slightly above model guidance like most of the past several days. I suspect the southerly winds will be stronger than most model guidance (perhaps not as strong as USL), like today.
 
Source: PivotalWeather


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