Some wind slowed the radiational cooling last night, though it still dropped to a low of 56F. The full sunshine and exceptionally warm air mass led to a warm up to a high of 83F (maybe 84F?), with the wind briefly spiking to 13 kt. A cold front will sag southward tonight, with winds turning to northerly and clouds thickening. This will lead to the high occurring at the start (Friday 06z). The burst of wind initially will likely lead to a temperature spike around 05-06z before a slow fall, since this is not a strong, shallow low-level cold air mass. Nighttime spikes like that typically are warmer than modeled. Thick low to mid-level clouds and a colder air mass will lead to much cooler temperatures during the day tomorrow compared to today. A couple of showers are possible but the chance of measurable rain seems <50%, with the strongest dynamics and heaviest precipitation passing to the north while ridging aloft and downsloping affect KRDU. The low will occur at the end (Saturday 06z) as weak cold advection continues. The low clouds will begin to clear shortly before the end as the winds also lighten (though not turn completely calm), making for a tricky low forecast, as there will probably be last minute radiational cooling.
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| Source: PivotalWeather |
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