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Rain, cooler temps expected to last through weekend

More seasonal heat to return next week

POSTED: August 17, 2013 11:07 p.m.

Hall County residents got a preview of fall this weekend with temperatures in the mid-60s.

National Weather Service meteorologist Ryan Willis said those unseasonable cool temperatures will persist another few days.

“It looks like it will continue to be significantly cooler than average through the rest of the weekend. We’re forecasting a high right around 70 or 71 up in Gainesville, which is significantly below average for this time of year — that’s about 15 degrees below average for a high temperature this time of year,” Willis said.

While the temperatures felt unfamiliar, the weekend rains did not. Those are here to stay as well, he said.

“Headed into tomorrow, and really through probably tomorrow night and Monday morning time frame, we’re seeing a continued wet period, kind of like what we’ve experienced today and yesterday, and the last several days,” he said. “We’re forecasting about another inch or so, maybe a little over an inch through Monday evening for that area. We’re not looking at a huge flood threat up that direction, but that is just another nuisance type rainfall because we’ve been so wet so far this year. It’s not like we need any more.”

About four-tenths of an inch of rain was recorded Saturday by the NWS automated station at Gainesville’s Lee Gilmer Memorial Airport, most falling in the form of a light mist and drizzle.

The area has been stuck in a “conveyer belt of rainfall,” Willis said, because of a stationary front tapping into Gulf Stream moisture. But rains should ease off heading into the work week with temperatures back in the 80s.

“It will be more of the afternoon type variety of pop up storms in the afternoon, not quite as widespread, and with that, it looks like it will be warming up,” he said.

Showers are forecast today with rain heavy at times and a high in the 70s. The chance of precipitation falls a bit into evening and drops to 40 percent by Monday.

“The cooler temperatures have been as a result of what we call cold air damming,” he explained. “Basically we got cooler, dense air, that rides around the right side of the Appalachians, and it gets locked up on this side of the Appalachians, and creates an environment of considerably cooler than average temperatures.”

In areas just on the other side of the mountains, such as central Tennessee, highs have been in the 80s, Willis said.

The temperatures are by no means the start of an early fall.

“This is an anomalous type weather pattern for this time of year, so it will warm back up headed through next week,” he said. “This has been record breaking cool weather as well, it’s not something that we experience very often at all this time of year.”


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