A low pressure center tracking across the Great Lakes and its associated cold front extending across the Southern Plains will focus occasional showers and thunderstorms through tonight. A few of these thunderstorms may become severe alongside heavy rainfall that may cause flash flooding; Portions of the Southern Plains would be the greatest threat for these hazards through tonight. Read More >
Public Information Statement National Weather Service Columbia SC 434 PM EDT Thu 06 2019 ...PUBLIC INFORMATION STATEMENT... ...Record Heat Wave-Flash Drought in Late May... ...Flash Drought Expands Dry Conditions Across the Midlands and Central Savannah River Area... ...2nd Warmest May on Record at both Augusta and Columbia... ...Precipitation Early, Then Dry Conditions... ...Broke the Record for the Highest Maximum Temperature for May at Augusta. ...Tied the Record for the Highest Maximum Temperature for May at Columbia... The area went from snow and tornadoes in April to drought and record high temperatures in May. May of 2019 will be remembered for the heat wave that developed during the last two weeks of the month and peaked during the last week of the month. Many records were either tied or broken at Augusta, Columbia and many NWS Cooperative Observer sites. Due to the large ridge of high pressure that built over the Southeast during the period, rainfall was scarce. This rapidly increased the area of drought across the state. The combination or record high temperatures and little to no rain produced conditions that can only be explained by the phrase Flash Drought. This type of Flash Drought is due to the excessive heat which produces increase evapotranspiration and low and decreasing soil moisture. Here are some of the daily temperature streaks for a few stations across the Midlands and CSRA: Columbia Univ. of South Carolina (NWS Coop Site-USCS1)... May 24...100 degrees May 25...104 degrees May 26...103 degrees May 27...103 degrees May 28...105 degrees May 29...103 degrees May 30...103 degrees May 31...102 degrees 8 Consecutive Days of 100 degrees or higher, previous May record was 3 days in 1996. Records for this station extend from 1954- Present. *State Record High Temperature for the month of May is 106 degrees set in Gillisonville on May 30, 1898 and Santuck on May 26, 1911. Barnwell 5 ENE (NWS Coop Site-BAMS1)... May 26...102 degrees May 27...102 degrees May 28...102 degrees May 29...101 degrees May 30...103 degrees May 31...100 degrees Pelion 0.8 NW (NWS Coop Site-PLNS1)... May 25...101 degrees May 26...101 degrees May 27...101 degrees May 28...102 degrees May 29...100 degrees May 30...100 degrees Augusta Bush Field (NWS AGS)... May 24....98 degrees May 25...100 degrees May 26...101 degrees May 27...100 degrees May 28...101 degrees May 29...101 degrees May 30....99 degrees 5 Consecutive Days of 100 degrees or higher, previous May record was 1 day in 1926. Records for Augusta extend from 1874-Present. Columbia Metro Airport (NWS CAE)... May 25...100 degrees May 26...100 degrees May 27....99 degrees May 28...101 degrees May 29...100 degrees May 30...100 degrees 3 Consecutive Days of 100 degrees or higher, previous May record was 2 days in 1041. Records for Columbia extend from 1887-Present. North 5 NE (NWS Coop Site-NRTS1)... May 27...100 degrees May 28...100 degrees May 29...102 degrees May 30...101 degrees May 31...100 degrees Evapotranspiration values were very impressive during the Heat Wave across the area. There are 2 official sites and 1 unofficial site in our CWA (County Warning Area) that measure evaporation. The NWS Coop Site at Barnwell averaged 0.25 to 0.35 inches of evaporation. The highest evaporation was reported on the morning of May 31 of 0.50 inches. The NWS Coop Site at North averaged 0.25 to 0.35 inches of evaporation. The highest evaporation was reported on the morning of May 30th of 0.36 inches. Our unofficial evaporation report from NWS Coop Site at Graniteville averaged 0.20 to 0.30 inches of evaporation. The highest evaporation was reported on the morning of the 29th of 0.30 inches. .Augusta Average Temperatures... The average temperature at Augusta Regional Bush Field for May was 77.5 degrees or 6.4 degrees above the normal of 71.1 degrees. It was the 2nd warmest May on record at Augusta. Here are the top 5 warmest May years on record: 1. 77.9 degrees in 1933 2. 77.5 degrees in 2019 3. 77.4 degrees in 1896 4. 76.2 degrees in 1962 5. 75.9 degrees in 1953 .Columbia Average Temperatures... The average temperature at Columbia Metro Airport for May was 77.3 degrees or 5.6 degrees above the normal of 71.7 degrees. It was tied for the 2nd warmest May on record with 1953. Here are the top 5 warmest May years on record: 1. 77.5 degrees in 1896 2. 77.3 degrees in 2019 and 1953 4. 77.0 degrees in 1933 5. 76.9 degrees in 2018 .Augusta Rainfall... Augusta Bush Field received 3.70 inches of rainfall during May, 1.05 inches above the normal of 2.65 inches. .Columbia Rainfall... Columbia Metro Airport received 2.35 inches of rainfall during May, 0.62 inches below the normal of 2.97 inches. Here are some of the highest/lowest official NWS Coop Observer monthly rainfall totals for May 2019: BNLS1 Barnwell 5 ENE..........4.50 inches GNTS1 Graniteville 1.2 NE.....3.83 inches AKIS1 Aiken 2 E...............3.67 inches CEWS1 Cheraw Water Plant......1.02 inches THMG1 Thomson 1.5 SSE.........1.02 inches ORBS1 Orangeburg 2............1.12 inches Here are some of the highest/lowest CoCoRaHS monthly rainfall totals for May 2019: South Carolina... SC-LN-8 Lancaster 0.4 WSW...7.39 inches SC-LN-20 Lancaster 11.0 ENE..7.26 inches SC-CF-5 Pageland 9.0 WNW....5.64 inches SC-OR-37 Orangeburg 0.4 WNW..0.84 inches SC-AK-83 Springfield 4.0 WNW.1.26 inches SC-LX-69 Lexington 3.0 WSW...1.33 inches Georgia... GA-BK-9 S. Augusta 4.1 S....3.32 inches GA-BK-10 Waynesboro 5.3 SE...2.63 inches GA-LC-2 Tignall 10.2 NE.....2.62 inches GA-CU-6 Martinez 0.9 NW.....1.52 inches GA-CU-21 Martinez 3.0 NE.....1.63 inches GA-RC-9 W. Augusta 0.9 NW...1.99 inches Highest Wind Gusts at ASOS Sites during May: Orangeburg County Airport (OGB).......55 mph on the 11th Columbia Hamilton Owens Field (CUB)...44 mph on the 11th Augusta Bush Field (AGS)..............42 mph on the 11th Columbia Metro Airport (CAE)..........40 mph on the 11th Augusta Daniel Field (DNL)............33 mph on the 5th Highest Wind Gusts on the area lakes during May: Lake Murray Flotilla Island (LMFS1)...37 mph on the 5th Lake Murray Towers USGS (IRMS1).......36 mph on the 4th Lake Wateree Dam (WATS1)..............36 mph on the 12th Lake Thurmond Dam (CHDS1).............31 mph on the 5th Lake Murray Water Temperatures (near surface) at The Towers for May: Warmest...86.0F on the 28th Coolest...69.8F on the 10th Temperature/Precipitation Records Tied or Broken during the month of May: Augusta... 24th...98 degrees, Tied Record High set in 1878. 25th...100 degrees, Broke Record High of 99 set in 2000 and 1878. 26th...101 degrees, Broke Record High of 100 set in 1926 and 1878. 27th...100 degrees, Broke Record High of 99 set in 2000 and 1916. 28th...101 degrees, Broke Record High of 99 set in 1964. 29th...101 degrees, Broke Record High of 99 set in 1914. 30th...99 degrees, Tied Record High set in 1914 and 1898. COLUMBIA... 26th...100 degrees, Tied Record High set in 1953 and 1926. 27th...99 degrees, Tied Record High set in 1916. 28th...101 degrees, Broke Record High of 99 set in 1914. 29th...100 degrees, Broke Record High of 98 set in 1948. Events for May 2019... May 4th... Strong to severe thunderstorms developed ahead of a cold front approaching the area from the west. The front moved across the state on the 5th. The storms produced pea size up to one inch hail across the Midlands. The largest hail fell in Aiken County. Strong winds downed trees and power lines in Chesterfield County. A funnel cloud was also reported just north of the town of Chesterfield in Chesterfield County. Strong straight line winds produced some minor damage to a roof in Richland County. May 11th - 12th... A cold front that stalled near the region on the 11th and 12th. This was the focus for strong to severe showers and thunderstorms. Hail up to the 3/4 of an inch along with downed trees were reported in Lancaster County. The storms produced strong winds across the Midlands. The storms also produced locally heavy rainfall across portions of central Lancaster County in western Chesterfield County. The heavy rainfall produced flash flooding in the City of Lancaster, where people had to be evacuated from Dalton Ridge Apartments. Here are some of the highest rainfall totals from Lancaster and Chesterfield Counties: Lancaster 0.4 WSW (CoCoRaHS)...........4.80 inches Lancaster 2.0 NNW (CoCoRaHS)...........3.67 inches Lancaster 7.1 ENE (CoCoRaHS)...........2.56 inches Pageland 0.9 WNW (CoCoRaHS)............1.78 inches Indian Land 4.7 S (CoCoRaHS)...........1.72 inches Here are a few of the peak wind gusts that were recorded: The USFS RAW site near Barnwell..........59 mph The ASOS at Orangeburg County Airport....54 mph The ASOS at Shaw AFB.....................50 mph The North Air Force Auxiliary Field......46 mph Columbia Hamilton-Owens Field............44 mph Williams Brice Stadium RCWINDS Mesonet...42 mph May 14th... Cool high pressure settled over the area behind the cold front that finally pushed through the area on the evening of the 13th. This produced morning low temperatures in the middle to upper 40s across many locations of the Midlands and CSRA. Here are a few of the lowest temperatures reported on the morning of the 14th: Cedar Crk 45 F 0800 AM 05/14 COOP Lake Greenwood 46 F 0830 AM 05/14 COOP Lancaster 46 F 0655 AM 05/14 AWOS Lincolnton 46 F 0800 AM 05/14 COOP Pelion 4.7 W 46 F 0700 AM 05/14 COCORAHS 2 ESE Saluda 46 F 0645 AM 05/14 AWS 3 SE Ridgeway 47 F 0649 AM 05/14 AWS Johnston 47 F 0700 AM 05/14 COOP Richland Library Northeast 47 F 0700 AM 05/14 RCWINDS Thomson-Mcduffie County Airp 47 F 0610 AM 05/14 AWOS Lexington County Arpt Pelion 47 F 0700 AM 05/14 RCWINDS Long Cane 47 F 0712 AM 05/14 RAWS Mccrady Training Center 47 F 0633 AM 05/14 RAWS Crossroads Fire Station 47 F 0700 AM 05/14 RCWINDS Little Mountain 48 F 0700 AM 05/14 COOP Camden Woodward 48 F 0635 AM 05/14 AWOS Newberry Sheriff Ofc 48 F 0700 AM 05/14 RCWINDS Savriv 48 F 0707 AM 05/14 RAWS Crane Creek Fire Station 48 F 0700 AM 05/14 RCWINDS 1 S Pelion 48 F 0649 AM 05/14 AWS Orangeburg 48 F 0616 AM 05/14 RAWS Dutch Fork HS 48 F 0700 AM 05/14 RCWINDS Fort Gordon 48 F 0701 AM 05/14 RAWS Gadsden 48 F 0700 AM 05/14 RCWINDS Dearing 48 F 0700 AM 05/14 GAMESONET Wagener 1SW 48 F 0917 AM 05/14 COOP Thurmond Dam and Lake 48 F 0715 AM 05/14 GAMESONET Hopkins 49 F 0700 AM 05/14 RCWINDS Heath Springs 49 F 0630 AM 05/14 AWS Saluda 49 F 0800 AM 05/14 COOP May 16th-31st... A stubborn ridge of high pressure settled in across the Southeast. This produced record high temperatures across the area and many daily maximum temperature records were broken. The combination of unseasonably hot temperatures, increased evaporation and little to no rainfall produced a "Flash Drought" across portions of the state, which includes the Midlands and CSRA. Additionally, consecutive days of 100 degrees or higher broke the previous records at several locations. Much of this information is included at the beginning of the Public Information Statement. YEAR TO DATE MONTHLY TEMPERATURE AND PRECIPITATION STATISTICS... COLUMBIA SC METROPOLITAN AIRPORT 2018/2019 MONTHLY AVERAGE TEMPERATURES AND DEPARTURES FROM NORMAL... AVG HIGH/DEP AVG LOW/DEP AVG TEMP NORM DEPARTURE JAN 2018 55.5/-0.5 30.5/-3.2 43.0 44.8 -1.8 FEB 70.1/+9.8 49.6/+12.8 59.8 48.5 +11.3 MAR 65.8/-2.4 42.5/-0.5 54.2 55.6 -1.4 APR 75.1/-1.2 49.4/-1.0 62.3 63.4 -1.1 MAY 87.3/+1.4 66.5/+7.0 76.9 71.7 +5.2 JUN 93.8/+3.8 71.7/+3.5 82.8 79.1 +3.7 JUL 93.5/+0.8 73.5/+1.9 83.5 82.2 +1.3 AUG 92.9/+2.2 72.7/+1.7 82.8 80.8 +2.0 SEP 91.2/+6.0 72.6/+8.4 81.9 74.7 +7.2 OCT 79.6/+3.5 57.5/+5.4 68.5 64.1 +4.4 NOV 62.3/-5.0 43.2/+0.9 52.8 54.8 -2.0 DEC 58.5/+0.3 39.2/+3.9 48.8 46.7 +2.1 Annual 77.1/+1.6 55.7/+3.3 66.4 63.9 +2.5 JAN 2019 57.7/+1.7 36.3/+2.6 47.0 44.8 +2.2 FEB 65.1/+4.8 41.2/+4.4 53.2 48.5 +4.7 MAR 67.4/-0.8 42.7/+0.3 55.1 55.6 -0.5 APR 77.9/+1.6 52.7/+2.3 65.3 63.4 +1.9 MAY 89.2/+5.4 65.4/+5.9 77.3 71.7 +5.6 AUGUSTA GA BUSH FIELD 2018/2019 MONTHLY AVERAGE TEMPERATURES AND DEPARTURES FROM NORMAL... AVG HIGH/DEP AVG LOW/DEP AVG TEMP NORM DEPARTURE JAN 2018 57.1/-0.8 29.2/-3.6 43.1 45.4 -2.3 FEB 71.6/+9.3 48.4/+12.5 60.0 49.1 +10.9 MAR 67.7/-2.2 41.2/-1.4 54.5 55.9 -1.4 APR 75.1/-2.2 46.1/-2.0 60.6 62.7 -2.1 MAY 86.4/+1.4 61.5/+4.2 74.0 71.1 +2.9 JUN 92.2/+1.2 68.7/+2.5 80.5 78.6 +1.9 JUL 91.2/-2.2 70.9/+1.1 81.0 81.6 -0.6 AUG 92.4/+0.6 70.4/+1.1 81.4 80.5 +0.9 SEP 92.4/+5.7 70.4/+7.8 81.4 74.6 +6.8 OCT 80.6/+2.9 56.7/+4.3 68.7 64.4 +4.3 NOV 64.3/-4.8 43.3/+1.9 53.8 55.2 -1.4 DEC 61.1/+1.1 40.5/+6.0 50.8 47.2 +3.6 Annual 77.7/+0.8 53.9/+2.9 65.8 63.9 +1.9 JAN 2019 60.7/+2.8 37.4/+4.6 49.1 45.4 +3.7 FEB 68.4/+6.1 43.2/+7.3 55.8 49.1 +6.7 MAR 71.2/+1.3 42.8/+0.8 57.0 55.9 +1.1 APR 80.0/+2.7 52.1/+4.0 66.0 62.7 +3.3 MAY 91.0/+6.0 64.1/+6.8 77.5 71.1 +6.4 COLUMBIA SC METROPOLITAN AIRPORT 2018/2019 MONTHLY/YEARLY PRECIPITATION... TOTAL NORMAL DEPARTURE (INCHES) JAN 2018 2.42 3.58 -1.16 FEB 1.61 3.61 -2.00 MAR 2.97 3.73 -0.76 APR 3.10 2.62 +0.48 MAY 2.76 2.97 -0.21 JUN 3.45 4.69 -1.24 JUL 3.68 5.46 -1.78 AUG 3.25 5.26 -2.01 SEP 6.09 3.54 +2.55 OCT 6.36 3.17 +3.22 NOV 6.55 2.74 +3.81 DEC 7.25 3.22 +4.03 Annual 49.52 44.59 +4.93 JAN 2019 3.07 3.58 -0.57 FEB 0.88 3.61 -2.73 MAR 2.61 3.73 -1.12 APR 2.86 2.62 +0.24 MAY 2.35 2.97 -0.62 AUGUSTA GA BUSH FIELD 2018/2019 MONTHLY/YEARLY PRECIPITATION... TOTAL NORMAL DEPARTURE (INCHES) JAN 2018 2.09 3.91 -1.82 FEB 1.57 3.92 -2.35 MAR 3.21 4.18 -0.97 APR 3.47 2.84 +0.63 MAY 8.21 2.65 +5.56 JUN 5.19 4.72 +0.47 JUL 3.13 4.33 -1.20 AUG 4.28 4.32 -0.04 SEP 7.19 3.22 +3.97 OCT 4.58 3.27 +1.31 NOV 5.98 2.82 +3.16 DEC 5.94 3.39 +2.55 Annual 54.84 43.57 +11.27 Jan 2019 4.40 3.91 +0.49 FEB 1.14 3.92 -2.78 MAR 2.23 4.18 -1.95 APR 3.01 2.84 +0.17 MAY 3.70 2.65 +1.05 The 3-Month Outlook for Late Spring into Summer June/July/August)... The outlook calls for a 40 to 50 percent chance of above normal temperatures along with equal chances of above, below and normal precipitation. Go to the Climate Prediction Center web page at www.cpc.ncep.noaa.gov for more details and the latest outlooks. ENSO (EL NINO SOUTHERN OSCILLATION)... ...El Nino Advisory... El Nino conditions are present. There is an 70 percent chance that El Nino conditions will continue through the Northern Hemisphere summer. There is a 55 to 50 percent chance of El Nino conditions continuing into the fall. Climate Outlooks and ENSO Discussions courtesy of NOAA Climate Prediction Center...www.cpc.noaa.gov . Note...much appreciation goes out to our NWS Cooperative Weather Observers...CoCoRaHS (Community...Collaborative...Rain...Hail and Snow Network) Observers...South Carolina State Climate Office... Southeast Regional Climate Center...Richland County Emergency Services...USGS and local weather partners for the data they provide throughout the year. Their hard work and dedication is greatly appreciated. Temperature records for Columbia go back to 1887 and for Augusta back to 1873. Precipitation records for Columbia go back to 1878 and for Augusta back to 1871. Additional climate information, including current and archived daily and monthly summaries, can be found on the National Weather Service Columbia SC home page at http://www.weather.gov/cae . $$ LCV