Scattered showers began the week as a weak front entered the state. High pressure provided mostly sunny, warm weather through midweek. A few usual cold spots reported low temperatures on Wednesday, May 14, in the 30's. Afternoon high temperatures Thursday climbed into the mid and upper 80's. Gusting winds over 30 mph combined with the warmth to send open water pan evaporation rates to between 0.3 and 0.5 inches. Very isolated thunderstorms producing hail up to an inch in size were reported in Bamberg and Berkeley counties Thursday evening. The week ended with Sunday high temperatures going into the 90's for the first time this season. Statewide temperatures for the period averaged 4 degrees below normal.PRECIPITATION AND TEMPERATURE DATA
The maximum observed temperature was 94 degrees on May 18 at Cheraw. The minimum observed temperature was 31 degrees at Huntsbridge on the morning of May 16. The heaviest official 24-hour rainfall was recorded at Beaufort with 1.10" ending at 7:00 a.m. on May 13. Statewide rainfall for the period averaged 0.1 inches. Precipitation Period 1997 Deviation* Temperature Location Total Total From Avg. Maximum Minimum Greer 0.00 19.1 1.1B 87 41 Charlotte, NC 0.09 16.4 0.4B 87 44 Columbia 0.00 15.6 3.1B 91 44 Florence FAA 0.03 13.5 2.1B 90 43 Blackville 0.21 15.5 2.9B 90 46 Augusta, GA 0.00 15.2 3.1B 89 41 Beaufort 1.10 15.8 0.5B 87 53 Charleston 0.59 15.8 0.5B 87 49 Myrtle Beach 0.45 19.8 2.2A 86 48 *A=Above, B=Below Note: Weekly rainfall amounts are for the prior 24-hrs ending 7 am Monday through ending 7 am SundayENERGY DEMAND AND AGRICULTURAL ADVISORY
Degree Days Actual May 1-18 Cooling Heating Columbia 34 29 Charleston 59 17 Greenville 27 59 Temperatures are expected to average near normal for the week. Rainfall is expected to be near normal. The Sandhill Experiment Station in north Columbia reports an average 4-inch depth soil temperature of 74 degrees.RIVERS AND SURF
River stages are near normal. Surf temperatures at Myrtle Beach and Savannah will average around 71 degrees.
sco@water.dnr.state.sc.us