An isolated thunderstorm produced small hail.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CAE wrote it up.
An isolated thunderstorm produced small hail.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before the first event at Apr 9, 1:51 PM EST, 1 hour 24 minutes earlier.
Area Forecast Discussion National Weather Service Columbia SC 251 PM EDT Fri Apr 9 2021 .SYNOPSIS... An approaching frontal system will bring increased chances of showers and thunderstorms to the region through Saturday. Only isolated to widely scattered showers and thunderstorms are expected this afternoon and evening. A better chance with more widespread coverage is expected Saturday afternoon and evening. A front will move through Sunday evening, with better precipitation chances to our south. Dry conditions expected Sunday night through Tuesday. Moisture may return mid to late next week. && .NEAR TERM /THROUGH TONIGHT/... Surface analysis this afternoon shows high pressure centered well off the east coast of Florida. Regional radar shows convection continuing along the Gulf coast and across southern portions of AL/GA. This is aligned with better moisture convergence, higher pw values and cape values values above 2500 j/kg. SPC and observational analysis shows higher dewpoints across the eastern half of the state, especially along the I-20 and I-95 corridors. Airmass has become weakly to moderately unstable even with the filtered sunshine from the high clouds that have been passing over the area through the day. SPC analysis shows LI values from -6 to -7 with surface based cape values from 2000-2500 j/kg. Short term convective models indicate some isolated to widely scattered convection to begin developing across the Midlands/CSRA this afternoon and lingering into the evening. A couple of areas to watch will be were upper level dynamics look to be best. This would be across the Lowcountry/srn Midlands and northern Midlands/Pee Dee. If a storm is able to become better organized, the main threat would be hail with web bulb zero values around 7k feet. Damaging winds would also be a threat with forecast soundings showing some mid level dry air in place and an inverted-V signature. SPC increased the area for marginal risk to include all of the CWA through the afternoon/evening hours. With little in the way of s/w activity moving across the area tonight, expect most of the shra/tsra to diminish with daytime heating. Expect some clouds overnight and temperatures gradually falling into the upper 50s to lower 60s. && .SHORT TERM /SATURDAY THROUGH MONDAY/... A strong upper level trough will move from the Mid Mississippi River Valley into the Western Great Lakes region on Saturday. A cold front associated with this trough will push into The Midlands and CSRA during the afternoon and evening hours. CAMS show a broken line of showers and thunderstorms moving across the region with the best timing estimate of between 3 and 10 pm. These models forecast SBCAPES 750-1250 J/KG and low level directional shear with 850 mb winds 25-35 knots. The primary severe weather hazard should be damaging winds. Small hail will be possible with 500 mb temps around -12C and a freezing level of around 11Kft. Some of the storms may rotate due to the low level directional shear. Much drier air pushes into the region behind the cold front late Saturday Night through Sunday with precipitable water values decreasing to less than one inch by Sunday afternoon. A secondary cold front moves across The Midlands and CSRA during the day. The CAMS do not show much in the way of convective development, however the environment is supportive of damaging winds with "inverted V" model forecast soundings. Monday will be much quieter weather wise with a west northwest flow aloft. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... Model ensembles depict a complex cut off upper level low pressure system south of New England and a flat ridge axis over the Lower Mississippi River Valley. The Midlands and CSRA should be in west northwest flow aloft between these two features. These ensembles forecast low confidence in the specific development of disturbances rotating around the cut off upper level low and the amount of Gulf of Mexico moisture advected into the region during the latter half of next week. We should see a low chance of showers and a cooling trend next Thursday and Friday. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... Conditions have improved, especially across the CSRA in regards to ceilings. VFR conditions are now prevalent at all of the TAF sites across the Midlands and CSRA. Plenty of mid/high level clouds continue to stream east-northeast across the area. High pressure remains centered to our south with light southwesterly flow. Aloft, a deep upper trough was located over the upper Midwest with southwesterly flow over the forecast area. Convection across cntrl/srn AL and into srn GA will continue to move slowly to the east- northeast through the remainder of the day. SPC analysis shows airmass across the Midlands/CSRA shows that the airmass has become moderately unstable and radar is showing a few isolated shra/tsra developing. At this time the convection is confined to the northern Midlands closer to shortwave energy. Additional s/w energy will be moving across srn GA into the Lowcountry of SC later this afternoon and evening. The convective models indicate the potential for a few additional tsra to develop later this afternoon and continue into the evening along/south of the I-20 corridor. Due to this fact, have continued to advertise potential for shra/tsra at both DNL and AGS. Lower confidence in convection reaching CAE/CUB/OGB so will leave out of this forecast for now. Expect any activity to diminish with loss of daytime heating as upper support is weak or negligible. Additionally, not expecting any reductions in vsby/cigs overnight at the traditional sites such as AGS/DNL/OGB. EXTENDED AVIATION OUTLOOK...Periodic ceiling and visibility restrictions will continue through Saturday and into early Sunday afternoon until a dry airmass and cold front finally push through Sunday afternoon. && .CAE WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. && SYNOPSIS...99 NEAR TERM...99 SHORT TERM...99 LONG TERM...99 AVIATION...99
The Columbia radar (KCAE), 113 km away, was scanning. The volume nearest the first event began at 20:14 UTC.
1 hail. Local standard time, as filed.
A spotter reported two brief periods of pea to dime size hail at Pageland Town Hall. Time estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2021Every state in 2021This day in weather historyWarnings in South Carolina, April 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 948457.