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South Carolina State Climatology Office
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August 28, 2017 - September 3, 2017


The last week of August 2017 began with a 56-degree low temperature at the Jocassee 8 WNW COOP site. A deepening low pressure center on an offshore frontal boundary slowly tracked northeast. This feature was named Potential Tropical Cyclone Ten by the National Hurricane Center on Sunday evening, August 27. Interaction of this offshore low and high pressure ridging down the eastern Appalachians created a persistent northeast flow on Monday and on Tuesday. PTC 10's offshore passage brought coastal rainshowers and gusty winds. The Beaufort County Airport reported a peak gust of 37 m.p.h. on Monday afternoon. Sullivans Island had a 24-hour rainfall of 3.45 inches by Tuesday morning.

Wraparound cloudiness blanketed the state on Tuesday as PTC Ten deepened off the North Carolina coast. The Columbia Metro Airport reported a high temperature of 86 degrees and a trace of rainfall.

High pressure prevailed over the state on Wednesday and on Thursday. The state's high temperatures on Wednesday and on Thursday were 87 degrees at Santuck and 94 degrees at the Columbia Hamilton-Owens Downtown Airport respectively.

The remnant circulation of Hurricane Harvey merged with a cold front west of the state on Friday. This cold front passed over the state on Saturday followed by high pressure that brought in clear skies and a northerly surface flow of dry air. Saturday morning's low temperature was 51 degrees at Jocassee 8 WNW. The state's weekend high temperatures were 93 degrees at the Orangeburg 2 COOP site on Saturday, and 93 degrees at the Columbia Metro Airport on Sunday. The Columbia Metro Airport also reported a minimum relative humidity value of 23% on Sunday.

(Note: The highest and lowest official temperatures and highest precipitation totals provided below are based on observations from the National Weather Service Cooperative Observer network and the National Weather Service's Forecast Offices.)
The highest official temperature reported was 94 degrees at Columbia Hamilton-Owens Downtown Airport and Barnwell 5 ENE on August 31, and at Columbia Metro Airport on September 1.
The lowest official temperature reported was 51 degrees at Jocassee 8 WNW on September 2.
The heaviest official 24-hour rainfall reported was 3.45 inches on Sullivans Island ending on the morning of August 29.
The state average rainfall for the seven-day period was 1.3 inches.


  Weekly Jan 1 Departure
Anderson Airport 2.17 38.31 8.4
Greer Airport 1.33 38.33 5.5
Charlotte, NC Airport 1.04 35.44 6.5
Columbia Metro Airport 0.01 36.75 4.4
Orangeburg Airport 0.36 28.26 -5.5
Augusta, GA Airport 0.30 34.38 3.2
Florence Airport 0.59 31.60 0.7
North Myrtle Beach Airport 3.84 35.93 -0.2
Charleston Air Force Base 2.30 39.02 2.7
Savannah, GA Airport 0.92 42.46 7.6

Weekly rainfall totals ending midnight Sunday.


4-inch depth soil temperature: Clinton 74 degrees. Columbia 79 degrees. Barnwell 70 degrees. Mullins 63 degrees


Most South Carolina river stages were below normal to normal. The Waccamaw River at Longs was above normal. The Savannah River and tributaries were below normal to much below normal.
Charleston Harbor water temperature: 82 degrees.
Capers Nearshore Buoy (Station 41029): 81.7 degrees.

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Columbia, SC 29202