Wednesday, September 26, 2012

Another round of summer - how long will it last?

A brief shot of summer has returned to the Memphis metro thanks to an area of high pressure located to our east. The southerly winds to the west of this area of high pressure pushed a warm front through the metro earlier this week bringing warm and humid conditions from the Gulf Coast up into our area.  Highs in the warm sector south of the front are in the 80s to near 90 with dewpoints in the 60s.

With the warm front stalled out to the north of our area as a stationary front, upper-level disturbances sliding along this boundary are producing areas of showers and thunderstorms to our north moving from west to east near the front.  Some of these storms in the warm sector are strong to marginally severe with wind and hail.  Most of these should stay just to our north for the next 24-36 hours.

Stationary front is well to our north, leaving the Mid-South in the warm sector. Disturbances have triggered storms that will move by to our north. Radar/frontal positions as of Weds afternoon. Blue boxes are a t'storm watch.
As the front slowly sinks south over the next couple of days, it will move close enough to the metro by Friday morning that rain chances will return as disturbances continue to move along the front. As these disturbances pass through the area, scattered showers and thunderstorms will develop and affect the metro. The front will remain draped across the area into Saturday, meaning rain chances continue for the first half of the weekend before the front finally pushes farther south, taking the rain chances with it.

High temperatures will return to the upper 70s and lower 80s with less humid and dry conditions behind the front for the end of the weekend and into the beginning of next week - another return of more autumn-like weather!

--Patrick Luckett, MWN Intern

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