Wednesday, February 15, 2023

Day 7 of Atlanta, GA (KATL)

Despite mostly clear skies early on, it seems like the lingering southeasterly wind and urban heat island limited cooling, and it only dropped to 54F. It was cloudy for the whole day so far (including a brief shower of 0.01”) and surprisingly, the high is only 64-65F so far, despite the warm air being so close nearby. It seems like the clouds are a bit more persistent than expected and the warm front is struggling to push north of Atlanta as the southerly winds weakened. Today’s forecast is the most challenging so far in Atlanta. Only slow cooling is expected tonight as southerly winds re-strengthen slightly with partly cloudy skies initially with increasing clouds late and high humidity. A few breaks of sun will lead to very warm temperatures tomorrow with a stiff southerly wind. The trickiest part is the end of the period at around Friday 06z. A cold front with showers and thunderstorms will be crossing Atlanta right around that time, and whether it is a little faster or slower will determine whether the bulk of the rain falls for day 7 or day 8. Fronts crossing at the thresholds of days are always the trickiest! The storm responsible for the cold front is weaker than originally expected, so the cold front will likely move a little slower and not pass until after Friday 06z. There will likely still be some rain ahead of it for day 7, but the heaviest rain and large temperature drop look to hold off until just after that time.
 
Source: PivotalWeather

Source: PivotalWeather

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