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Thursday, March 18, 2010

Spring, then winter, then spring again!

I wrote earlier this week about a storm system we would have to keep an eye on this weekend. It's Thursday evening and time to talk about it! Computer models have pretty much been all over the place with this system the past couple of days, so I have been hesitant to say too much about it, other than monitoring it closely and keeping the forecast udpated. Well, today we started getting some agreement in the models, and it seems that there is good news and bad news.

Good news: Saturday could turn out to be an excellent first day of spring for most of the day! I'm expecting rain to hold off until at least mid to late afternoon, and possibly the dinner hour. This will allow temperatures to climb back to near 70, and with enough sun, we could see lower to mid 70s. (By the way, Friday also looks gorgeous with lower 70s and lots of sun.)

Bad news: This pushes much of the effects of the system into Saturday night and the daytime hours Sunday. Those effects include showers and thunderstorms, some of which could produce strong wind gusts, Saturday evening and overnight and scattered, mainly light, rain showers Sunday. We also will likely see temperatures do a nose-dive from 70 Saturday to the 40s on Sunday. Temperatures may actually be at their warmest Sunday morning before falling slowly through the 40s during the day. Needless to say, it will be a dreary "winter-like" day.

Other good news: While some model solutions had mentioned a four-letter precipitation type that begins with 'S' on Saturday night or Sunday, I now think that the chances are very slim. I had not put it in my forecast up to this point due to it being so late in the season and model solutions not agreeing on that outcome to this point. It appears I may have been wise in doing so. I'm sticking with rain on Sunday.

Last bit of good news: Typical with mid to late-March systems, the cold blast doesn't last long and we're rebounding back into the 60s to near 70 early next week. Check out all the details in the MemphisWeather.net forecast.

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