Weather experts say summer rainfall can be hit or miss

11:40 PM, Jul 17, 2012   |    comments
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Summer rainfall isn't always guaranteed, even if your neighbor a mile away is getting it.

Over the last few weeks, East Tennessee has seen numerous storms fire up during the afternoon and bring rain to some towns while leaving others completely dry. 

According to the National Weather Service, the pattern the region is experiencing is completely normal. 

"Each individual yard may see about one to two days of rain even though we've got rain in the forecast for the next week," said NWS Forecaster David Gaffin.

He said summer thunderstorms are simply hard to predict when it comes to the pinpointing the exact location they will hit.

Gaffin said every time a thunderstorm strikes, it is preceded by an outflow boundary, or miniature cold front.  After one thunderstorm dissipates, a new thunderstorm, according to Gaffin, will typically develop where past outflow boundaries were last left.

He said that can add to the seemingly random nature of storms in our area.

"Where the outflow boundaries are going to happen on any one day is hard to know," Gaffin said.

The Fruit and Berry Patch in Halls said it often experiences hit-or-miss storm activity where it is located.  Joe Fox operates the Fruit and Berry Patch.  He said last week the farm got plenty of rain and was expecting more Tuesday, but narrowly missed out.

"It never really got across from Interstate 75," said Fox.

Another farm owner in Morristown said she experiences the same.

"We're in a little valley right here and it seems to miss us a lot," said Alice Litz.

According to 10News Chief Meteorologist Todd Howell, July is on average the wettest month of the year in East Tennessee.

The National Weather Service said the month's wet nature can be attributed to its high humidity.