A band of showers and thunderstorms developed. One of the storms became severe and produced wind damage.
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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.
A band of showers and thunderstorms developed. One of the storms became severe and produced wind damage.
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 Jun 30, 4:25 PM EST, 7 minutes earlier.
Area Forecast Discussion National Weather Service Columbia SC 525 PM EDT Fri Jun 30 2017 .SYNOPSIS... High pressure will extend from the Atlantic westward through the northern Gulf of Mexico through early next week. North of the ridge some troughing will be in the forecast area. The pattern supports seasonal hot conditions with a chance of mainly afternoon and evening thunderstorms. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... Couple bands of convection working across the region with PWAT values around 2.2 inches through tonight. First band of showers and thunderstorms across the central and eastern Midlands with the second band moving toward the CSRA. Severe concern through tonight remains low with the main concern the potential for locally heavy rainfall and any possible training cells could present some hydro issues. Convection will diminish this evening with loss of heating...then further diminish overnight as the last in the series of short waves crosses the forecast area. High temperatures remain on track for the low to mid 80s and with an extensive cloud blanket tonight overnight lows will be in the low to mid 70s. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY/... The models display surface ridging extending from the Atlantic westward through the northern Gulf of Mexico. North of the ridge lee-side troughing is depicted in the forecast area. The area is shown near the southern periphery of broad mid-level troughing but with deeper moisture northeast of the area ahead of more significant shortwave troughing. The diminished moisture will lead to higher temperatures. Followed the guidance consensus and forecasted highs mainly in the lower 90s Saturday and middle 90s Sunday with heat index values peaking about 95 and 100, respectively. Used the guidance consensus pop of around 30 percent Saturday and 20 percent Sunday. The models indicate moderate instability with surface-based LI values around -7. A few of the thunderstorms may contain strong wind. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... The GFS and ECMWF show surface ridging extending from the Atlantic westward into the northern Gulf of Mexico with lee-side troughing in the forecast area during much of the medium-range period. Mid-level ridging may be a little weaker toward the end of the period. The pattern supports a chance of mainly afternoon and evening thunderstorms with seasonal hot conditions. The GFS and ECMWF MOS plus GFS ensemble mean support pops around 30 percent. The MOS indicates highs mainly in the middle 90s. && .AVIATION /22Z FRIDAY THROUGH WEDNESDAY/... Mainly VFR with brief periods of MVFR/possible IFR near showers/storms over the next few hours. Currently monitoring a line of showers/storms moving into the CSRA late this afternoon. Expect brief periods of at least MVFR conditions at AGS/DNL until around 23Z. The line may weaken a bit as it moves east so will need to monitor CAE/CUB/OGB for possible restrictions into the early evening. Overnight with moisture remaining high and a few showers persisting across the area expect cigs to lower into MVFR range. Conditions will improve after 01/14z as winds increase and slightly drier air mixes down. Winds through the period will be southerly at 7 knots or less. EXTENDED AVIATION OUTLOOK...Late night/early morning stratus/fog, along with scattered mainly afternoon/evening thunderstorms possible each day. && .CAE WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. && SYNOPSIS...99 NEAR TERM...99 SHORT TERM...99 LONG TERM...99 AVIATION...99
Hazardous Weather Outlook National Weather Service Columbia SC 344 AM EDT Fri Jun 30 2017 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-010745- Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon- Bamberg- 344 AM EDT Fri Jun 30 2017 This Hazardous Weather Outlook is for the Midlands of South Carolina and the Central Savannah River area of Georgia. .DAY ONE...Today and Tonight. Scattered to numerous thunderstorms are expected today producing locally heavy rainfall in the stronger storms. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Columbia SC
445 PM EDT FRI JUN 30 2017
GAZ040-064-SCZ018-025-026-302130-
Lincoln-Columbia-McCormick-Saluda-Edgefield-
445 PM EDT FRI JUN 30 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN COLUMBIA...
SOUTHEASTERN LINCOLN...NORTHWESTERN EDGEFIELD...WESTERN SALUDA AND
NORTHEASTERN MCCORMICK COUNTIES...
At 444 PM EDT, a strong thunderstorm was located over Lake Thurmond
, or 23 miles south of Abbeville, moving northeast at 30 mph.
Winds around 40 mph are possible with this storm.
Locations impacted include...
McCormick, Parksville, Plum Branch and Modoc.
LAT...LON 3388 8243 3399 8221 3397 8218 3399 8215
3398 8208 3398 8205 3396 8205 3396 8201
3401 8198 3384 8191 3368 8236
TIME...MOT...LOC 2044Z 246DEG 27KT 3384 8230
awpSpecial Weather Statement National Weather Service Columbia SC 518 PM EDT FRI JUN 30 2017 GAZ064-065-SCZ025-030-302200- Richmond-Columbia-Aiken-Edgefield- 518 PM EDT FRI JUN 30 2017 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL COLUMBIA...CENTRAL RICHMOND...SOUTH CENTRAL EDGEFIELD AND WEST CENTRAL AIKEN COUNTIES... At 518 PM EDT, a strong thunderstorm was located near Augusta, moving east at 35 mph. Winds in excess of 30 mph are possible with this storm and brief locally heavy rain. Locations impacted include... Aiken, North Augusta, Evans, Augusta, Martinez, Clearwater, Belvedere, Fort Gordon, New Ellenton, Gloverville, Burnettown and Murphys Estates. LAT...LON 3335 8217 3355 8219 3372 8171 3339 8161 TIME...MOT...LOC 2118Z 253DEG 30KT 3344 8207 awp
Special Weather Statement National Weather Service Columbia SC 530 PM EDT FRI JUN 30 2017 GAZ064-065-SCZ025-030-302200- Richmond-Columbia-Aiken-Edgefield- 530 PM EDT FRI JUN 30 2017 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL COLUMBIA... NORTHEASTERN RICHMOND...SOUTH CENTRAL EDGEFIELD AND WEST CENTRAL AIKEN COUNTIES... At 530 PM EDT, a strong thunderstorm was located over Augusta, moving east at 35 mph. Winds 40 to 50 mph are expected with this storm along with brief heavy rain. Locations impacted include... Aiken, North Augusta, Augusta, Clearwater, Belvedere, Martinez, New Ellenton, Gloverville and Burnettown. LAT...LON 3337 8205 3354 8208 3367 8162 3341 8152 TIME...MOT...LOC 2130Z 252DEG 30KT 3345 8197 awp
The Columbia radar (KCAE), 93 km away, was scanning. The volume nearest the first event began at 21:32 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds downed two trees at N Hills Dr and W Martintown Rd in North Augusta, SC.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2017Every state in 2017This day in weather historyWarnings in South Carolina, June 2017
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: 698170.