After a chilly start to Saturday morning, temperatures quickly recovered and made for an excellent weekend to start off May. How cold it got Saturday morning is the subject of today's featured map displaying computed NCEP RTMA minimum temperature between 3 and 8 AM. So-called local micro-climates can introduce a fair bit of uncertainty into a map like this as subtle topographic and soil type differences can cause major differences in temperature over short distances. Normally, such an event on the second day of May would not be of much concern, but as was mentioned by the daily feature a few days ago, the significant early season warmth has gotten vegetation off on an early start and early May freeze events will continue to be of concern.

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