An unsettled pattern, isolated showers, and thunderstorms across the state marked the start of the period. On Monday, June 5. High and low temperatures continued to be up to ten degrees below normal, with temperatures dropping into the mid-50s during the morning and rebounding only into the upper 70s by mid-afternoon. Chances of showers and thunderstorms increased on Tuesday as a weak frontal boundary slowly drifted south over the Carolinas. Thunderstorms produced wind damage in Sumter, Kershaw, Greenville, Colleton, and Charleston counties, and hail from these storms ranged between pea- and quarter-sized.
Hazy skies were observed across the state on Wednesday as the boundary helped usher smoke from wildfires in Canada into the region. In addition to contributing to the poor air quality values, the boundary triggered strong thunderstorms in portions of the Central Savannah River Area and Lowcountry. A funnel cloud was reported in Hampton County, and lightning caused a house on Edisto Island in Colleton County. Wildfire smoke lingered on Thursday before the cold front finally pushed through the state. A noticeable drier air mass settled into the region on Friday and Saturday, with dewpoints in the 40s. With the drier air in place, morning low temperatures on Friday and Saturday dropped into the upper 40s to mid-50s in parts of the state, which are between ten to fifteen degrees below normal. Daytime temperatures reached the upper 70s to low 80s heading into the weekend.
On Sunday, strong to severe thunderstorms pushed through the state during the late afternoon and early evening as any upper-level disturbance moved in from the west. There were reports of wind damage in Lexington, Fairfield, Richland, and Kershaw counties in the Midland, and intense storms also impacted portions of Colleton and Charleston counties.
During the week, the Charleston Harbor Tidal Gauge recorded astronomical tides ranging between 7.00 feet and 7.85 feet MLLW. The higher tides caused shallow to moderate saltwater flooding in low-lying coastal areas.
(Note: The highest and lowest official temperatures and highest precipitation totals provided below are based on observations from the National Weather Service (NWS) Cooperative Observer network and the National Weather Service's Forecast Offices.)| Weekly* | Since Jan 1 | Departure | |
|---|---|---|---|
| Anderson Airport | 0.95 | 25.35 | 4.2 |
| Greer Airport | 1.21 | 31.06 | 9.1 |
| Charlotte, NC Airport | 0.34 | 21.55 | 2.3 |
| Columbia Metro Airport | 1.42 | 25.52 | 6.9 |
| Orangeburg 2 (COOP) | 2.55M | 23.73M | 2.8M |
| Augusta, GA Airport | 0.40 | 26.51 | 7.2 |
| Florence Airport | 1.26 | 19.36 | 1.7 |
| North Myrtle Beach Airport | 0.39 | 15.77 | -1.1 | Charleston Air Force Base | 1.94 | 17.04 | -1.5 |
| Savannah, GA Airport | 2.54 | 20.37 | 1.5 |
| *Weekly precipitation totals ending midnight Sunday. M - denotes total with missing values. s - denotes total with suspect data. |
4-inch depth soil temperature: Clinton: 70 degrees. Columbia: 74 degrees. Barnwell: 69 degrees. Mullins: 68 degrees.
Rainfall through Saturday was spotty across the state, with much of the state recording no rain or totals of less than half a quarter of rainfall on Tuesday and Wednesday, and only locations under the spotty shower and thunderstorm activity recorded totals of over half an inch of rain. The storm system that moved through on Sunday afternoon provided more widespread rainfall, with some areas reporting up to two inches over the seven days. The abnormally dry (D0) conditions were introduced into the northern portions of Greenville, Pickens, and Oconee counties, on the Thursday, June 8, release of the United States Drought Monitor map. The persistent D0 conditions remained in the Pee Dee, mainly around Florence County.
With a lack of widespread rainfall during the period, some gauges in the upper Saluda and Broad watersheds started to report a decrease in streamflow. The values reported on the Little Pee Dee River near Galivants Ferry continued to be much below normal. However, the 14-day averages for most stream flow values in the state’s watersheds remained at average flow values. While river height gauges across the state remained below the action stage, coastal flooding was reported at the beginning of the period.
