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South Carolina State Climatology Office
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WEEKLY SOUTH CAROLINA WEATHER 2017

October 2, 2017 - October 8, 2017

WEATHER SUMMARY:

A broad ridge of high pressure fixed over the U.S. east coast kept warm and very dry conditions across the state through on Friday. High temperatures reached 92 degrees at the Barnwell COOP stations on Saturday. Coastal CoCoRaHS stations reported meager rainfall amounts during the week. The Bluffton 2.9 ENE CoCoRaHS site reported a 24-hour rainfall total, ending Tuesday morning, of 0.15 inches. A coastal trough developed just offshore on Saturday and produced 0.70 inches of rain at Georgetown.

High pressure weakened and drifted east starting on Friday allowing a moist southerly flow of subtropical air over the state for the weekend. Friday's coastal trough rotated inland early on Saturday bringing a line of light rain and drizzle across the state before noon. The Columbia Metro Airport reported 0.52 inches of rain and a Saturday high temperature of 88 degrees.

Early on Sunday, Hurricane Nate made landfall near Biloxi, Mississippi. With the subtropical high displaced to the east, the remnants of Nate were steered north, then northeast into the Ohio River Valley on Sunday. Although the center of circulation was well west of South Carolina, Nate's expansive cloud shield covered the state. Embedded severe storms crossed over the Upstate and northern Midlands on Sunday afternoon and produced five tornadoes (see table below). The tornadoes produced widespread tree damage along their paths. Numerous homes and outbuildings were also damaged by the tornadoes. Despite persistent cloud cover on Sunday, Summerville observed the state's high temperature of 90 degrees. The Jocassee COOP observer reported a 24-hour rainfall amount of 7.05 inches attributable to the remnants of Hurricane Nate. The Greenville-Spartanburg Airport received 2.42 inches of rainfall Sunday while the Charleston Air Force Base received only one one-hundredth of an inch.

(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 92 degrees at Orangeburg 2 on October 7 and at Barnwell 5 ENE.
The lowest official temperature reported was 38 degrees at Jocassee 8 WNW on October 3.
The heaviest official 24-hour rainfall reported was 7.05 inches at Jocassee 8 WNW for a period ending October 9.
The state average rainfall for the seven-day period was 0.7 inches.

PRECIPITATION:

  Weekly* Since Jan 1 Departure
Anderson Airport 0.81 42.97 8.8
Greer Airport 2.42 44.61 7.7
Charlotte, NC Airport 0.51 38.19 5.4
Columbia Metro Airport 0.65 41.95 5.6
Orangeburg Airport 0.14 32.46 -5.8
Augusta, GA Airport 0.63 39.29 4.2
Florence Airport 0.44 36.14 1.1
North Myrtle Beach Airport 0.45 40.34 -2.4
Charleston Air Force Base 0.16 45.35 2.4
Savannah, GA Airport 0.59 48.54 8.4
*Weekly rainfall totals ending midnight Sunday.                    

SOIL TEMPERATURES:

4-inch depth soil temperature: Clinton 74 degrees. Columbia 78 degrees. Barnwell 72 degrees. Mullins 75 degrees

RIVER STAGES:


Upstate river stages were normal to much above normal.
Midlands and Pee Dee river stage were below normal.
Lowcountry river stages were normal to below normal.

COASTAL OCEAN TEMPERATURES:


Charleston Harbor water temperature: 79 degrees.
Capers Nearshore Buoy (Station 41029): 78 degrees.

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