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South Carolina, Oconee Mountains

Special Statement

Statement as of 1:29 PM EDT on July 24, 2014

Expires 2:00 PM EDT on July 24, 2014


... A strong thunderstorm will affect central Oconee County through
200 PM EDT...

At 127 PM EDT... National Weather Service Doppler radar indicated a
strong thunderstorm near Walhalla... moving east at 15 mph.

This storm will impact locations near...
Seneca...
Lake Keowee...

Small hail... and wind gusts up to 40 mph are expected with this
Storm.

Lake Keowee is in the path of this storm. Cloud to ground lightning
and gusty winds will create dangerous boating conditions. Move to
shore immediately.

Lat... Lon 3468 8319 3484 8316 3484 8290 3484 8289
      3482 8290 3478 8288 3474 8290 3473 8286
      3462 8285



128 PM EDT Thu Jul 24 2014

... A strong thunderstorm will affect northwestern Pickens and
northeastern Oconee counties through 200 PM EDT...

At 127 PM EDT... National Weather Service Doppler radar indicated a
strong thunderstorm near Lake Jocassee... or 14 miles northwest of
Pickens... moving east at 15 mph.

This storm will impact locations near...
Keowee Toxaway State Park...
Rocky Bottom...

Small hail... and wind gusts of 40 to 50 mph are expected with this
Storm.

Lake Jocassee is in the path of this storm. Cloud to ground
lightning and gusty winds will create dangerous boating conditions.
Move to shore immediately.

Lat... Lon 3503 8300 3508 8282 3508 8277 3507 8278
      3507 8276 3504 8274 3488 8275 3487 8276
      3494 8301

Lane


Public Information Statement

Statement as of 8:43 AM EDT on July 24, 2014


... WFO Greenville-Spartanburg installs new radar software...

A new software upgrade for WSR-88D radars... called sails... has
been installed on the kgsp WSR-88D. Sails stands for supplemental
adaptive intra-volume low level scan. This upgrade will enable the
radar to obtain low level scans more frequently during severe
weather events where radar sampling is more critical in the lower
atmosphere. Previously the WSR-88D scanned the atmosphere at
progressively higher angles. These scans would begin at .5 degrees
above the horizon and scan as high as 19.5 degrees. With sails
activated... the radar inserts an additional .5 degree scan in the
middle of the radar's vertical scan. As an example... this additional
low level scan can provide critical information to warning
meteorologists about developing tornadoes.

NWS meteorologists have the option of defining the scan strategy of
the wsr-88d's which means that sails can be activated or
de-activated depending on the meteorological situation. In the
southeast United States during the Summer months... pulse
thunderstorms are the most common severe storm threat and
tornadoes are rare. For pulse storms... warning meteorologists
depend more on high level scans to analyze storms capable of
producing large hail and damaging downburst winds. Hence... sails
may not be utilized much during the Summer months. The NWS will
notify users through chat and social media when the scan strategy
is changed. More information about sails can be obtained at:
http://www.Weather.Gov/gsp/sails. If you have questions... contact
Larry gabric... meteorologist in charge WFO gsp at 864-848-9970
x222 or e:mail Larry.Gabric@noaa.Gov.



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