The Charleston Harbor Tidal Gauge recorded an astronomical tide of 7.31 feet MLLW around midnight on Monday, April 10. The higher tides caused shallow flooding in low-lying coastal areas and closed roads in the Charleston area.
The high pressure built into the region throughout the day and breezy conditions were recorded across the Midlands, with gusts up to 25 mph. Temperatures were between five and ten degrees below normal, with lows in the upper 30s to low 40s and highs in the mid-60s. For Tuesday morning, a frost advisory was issued for most of the Upstate and portions of the northeast Midlands. With high-pressure overhead and clear skies, minimum temperatures dropped into the mid-30s, and a few locations dropped below freezing, which was ten to fifteen degrees below normal. Daytime temperatures rose into the low-70s.
Despite the cool morning temperatures on Wednesday, daytime temperatures continued to warm steadily, rebounding into the upper 70s in the afternoon, roughly five degrees above normal. Light southeasterly winds began moving moisture back into the region. On Thursday, increasing cloudiness and additional moisture were observed as a low-pressure system moved out of the Gulf of Mexico, providing scattered showers and thunderstorms across the state. Under cloudy skies and scattered showers, temperatures in the Upstate were slightly below normal on Friday, while warmer temperatures, under sunnier conditions, were measured at the coast.
Dense fog was reported along portions of the Lowcountry coast Saturday morning, with visibilities less than half a mile in some locations, while some patchy fog was seen in parts of the Midlands and Pee Dee. A weak high pressure produced a pleasant day with mostly sunny skies, dry air, and warmer-than-normal high temperatures. A cold front approached the area on Sunday, triggering additional scattered showers. As the front cleared the state, drier and cooler air filtered back into the region for the start of the new work week.
(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 | 0.29 | 17.95 | 3.8 |
| Greer Airport | 0.81 | 19.13 | 4.6 |
| Charlotte, NC Airport | 0.40 | 14.13 | 1.6 |
| Columbia Metro Airport | 0.21 | 16.97 | 5.0 |
| Orangeburg 2 (COOP) | 1.92 | 16.52 | 3.1 |
| Augusta, GA Airport | 0.67 | 19.81 | 6.5 |
| Florence Airport | 0.21 | 14.89 | 4.0 |
| North Myrtle Beach Airport | 0.38 | 9.29 | -2.0 | Charleston Air Force Base | 0.16 | 10.53 | -1.0 |
| Savannah, GA Airport | 0.57 | 11.59 | 0.1 |
| *Weekly precipitation totals ending midnight Sunday. M - denotes total with missing values. s - denotes total with suspect data. |
4-inch depth soil temperature: Clinton: 63 degrees. Columbia: 67 degrees. Barnwell: 60 degrees. Mullins: 65 degrees.
Rainfall totals during the period ranged from less than a quarter of an inch in portions of the Midlands and interior Pee Dee regions to over two inches in isolated portions of Bamberg, Georgetown, and Orangeburg counties. For the second week in a row, scattered showers were observed during the first part of the period, and most of the rain came during the end of the work week and into the weekend. The most recent United States Drought Monitor map showed improvement of the abnormally dry (D0) conditions in northern York, Cherokee, Spartanburg, Greenville counties, and parts of the Pee Dee. However, D0 conditions were introduced into Charleston County.
Due to the rain across North and South Carolina during the past few periods, the 14-day averages for stream flow values at all the gauges returned to normal. However, a few gauges reported flows slightly above normal, including the much above normal values recorded by the gauge along the Saluda River below Lake Murray Dam. Most rivers north of the Fall Line reported river heights below the action stage; however, a few gauges reached the minor stage around the middle of the week and were slowly starting to fall.
