Alert archive / South Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Columbia, SC
NWS Columbia, SC issued this special weather statement at Jul 7, 2017, 1:30 PM EDT for McCormick County, South Carolina. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2017, 1:30 PM EDT (17:30 UTC)
- Expired
- Jul 7, 2017, 2:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Columbia, SC
County McCormick County, SC
The radar
The Columbia radar (KCAE), 99 km from the middle of the area, began a volume at 17:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.5 hours before the alert went out and 223 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1391 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 880 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, 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 this special weather statement went out at Jul 7, 10:35 AM EDT, 2 hours 55 minutes earlier.
Area forecast discussion, Jul 7, 10:35 AM EDT, 2 hours 55 minutes before
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</html>Hazardous weather outlook, Jul 7, 6:47 AM EDT, 6 hours 43 minutes before
Hazardous Weather Outlook National Weather Service Columbia SC 647 AM EDT Fri Jul 7 2017 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-081100- Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon- Bamberg- 647 AM EDT Fri Jul 7 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. An isolated thunderstorm could reach severe limits this afternoon and evening, more likely northern areas. Damaging wind gusts will be the primary hazard with any severe thunderstorm. Afternoon heat index values near 105. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Scattered mainly afternoon and evening thunderstorms are expected Saturday and an isolated thunderstorm could reach severe limits. Damaging wind gusts will be the primary hazard with any severe thunderstorm. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Jul 7, 10:09 AM EDT, 3 hours 21 minutes before
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</html>Local storm report, Jul 7, 10:11 AM EDT, 3 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1011 AM EDT FRI JUL 7 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0626 PM TSTM WND DMG MCCORMICK 33.91N 82.30W
07/06/2017 MCCORMICK SC LAW ENFORCEMENT
MCCORMICK DISPATCH REPORTED A VERY LARGE OAK
TREE DOWN ON RAILROAD AVE IN MCCORMICK. TIME
ESTIMATED BY RADAR.
&&
HCSpecial weather statement, Jul 7, 1:30 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Columbia SC
130 PM EDT FRI JUL 7 2017
GAZ040-SCZ018-025-026-071815-
Lincoln-McCormick-Saluda-Edgefield-
130 PM EDT FRI JUL 7 2017
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL LINCOLN...NORTHWESTERN
EDGEFIELD...WEST CENTRAL SALUDA AND MCCORMICK COUNTIES...
At 129 PM EDT, a strong thunderstorm was located near McCormick,
moving east at 40 mph.
Winds in excess of 40 mph are possible with this storm.
Locations impacted include...
McCormick, Parksville, Plum Branch, Willington, Modoc and Mount
Carmel.
If you are on or near Lake Thurmond, get out of the water and move
indoors or inside a vehicle. Remember, lightning can strike out to
10 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.
LAT...LON 3401 8248 3402 8232 3397 8230 3402 8224
3398 8220 3397 8217 3399 8215 3398 8205
3396 8205 3396 8202 3402 8197 3404 8193
3366 8201 3386 8257
TIME...MOT...LOC 1729Z 277DEG 39KT 3391 8240
LCVThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 2:23 PM EDT | Special Weather Statement | CAE | McCormick | 22 min |
| Jul 7, 2:27 PM EDT | Special Weather Statement | CAE | Saluda | 48 min |
| Jul 7, 2:33 PM EDT | Severe Thunderstorm Warning | CAE | Newberry, Saluda | 42 min |
| Jul 7, 2:37 PM EDT | Severe Thunderstorm Warning | CAE | McCormick | 53 min |
| Jul 7, 3:04 PM EDT | Special Weather Statement | CAE | Newberry | 26 min |
| Jul 7, 3:41 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, Lexington, Orangeburg | 49 min |
| Jul 7, 4:51 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 54 min |
| Jul 7, 6:25 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Sumter | 50 min |
| Jul 7, 6:28 PM EDT | Special Weather Statement | CAE | Aiken | 32 min |
| Jul 7, 6:55 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Orangeburg | 44 min |
| Jul 7, 7:32 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Lexington | 58 min |
| Jul 7, 1:45 PM EDT | Special Weather Statement | CAE | Columbia | 45 min |
| Jul 7, 1:56 PM EDT | Special Weather Statement | CAE | Columbia | 49 min |
Nearby
Special Weather Statements in South Carolina, 2017Every special weather statement in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.