Alert archive / South Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Columbia, SC
NWS Columbia, SC issued this special weather statement at May 5, 2017, 1:58 AM EDT for Chesterfield County, South Carolina. It was in force for 47 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
- May 5, 2017, 1:58 AM EDT (05:58 UTC)
- Expired
- May 5, 2017, 2:45 AM EDT
- In force
- 47 min
- Issued by
- NWS Columbia, SC
County Chesterfield County, SC
The radar
The Columbia radar (KCAE), 108 km from the middle of the area, began a volume at 06:00 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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 6.0 hours before the alert went out and 168 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
- 65 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1319 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 262 m²/s²
- 0-3 km storm-relative helicity
- 483 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
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 May 5, 1:42 AM EDT, 16 minutes earlier.
Area forecast discussion, May 5, 1:42 AM EDT, 16 minutes before
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</html>Hazardous weather outlook, May 4, 8:55 PM EDT, 5 hours 3 minutes before
Hazardous Weather Outlook National Weather Service Columbia SC 855 PM EDT Thu May 4 2017 GAZ040-063>065-077-SCZ015-016-018-020>022-025>028-030-035-037-041- 060100- Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Aiken-Barnwell-Calhoun-Bamberg- 855 PM EDT Thu May 4 2017 This Hazardous Weather Outlook is for the Midlands of South Carolina and the Central Savannah River area of Georgia. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. SCZ029-031-036-038-060100- Lee-Sumter-Orangeburg-Clarendon- 855 PM EDT Thu May 4 2017 ...TORNADO WATCH 194 IN EFFECT UNTIL 3 AM EDT FRIDAY... This Hazardous Weather Outlook is for the Midlands of South Carolina and the Central Savannah River area of Georgia. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tornado Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is requested.
In the hours before
Local storm report, May 4, 10:15 PM EDT, 3 hours 43 minutes before
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</html>Local storm report, May 4, 10:19 PM EDT, 3 hours 39 minutes before
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</html>Special weather statement, May 4, 10:27 PM EDT, 3 hours 31 minutes before
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</html>Special weather statement, May 5, 12:08 AM EDT, 1 hour 50 minutes before
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</html>Special weather statement, May 5, 1:58 AM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 8:20 PM EDT | Special Weather Statement | CAE | Clarendon, Lee, Sumter | 40 min |
| May 4, 8:26 PM EDT | Tornado Warning | CAE | Clarendon, Sumter | 34 min |
| May 4, 8:52 PM EDT | Tornado Warning | CAE | Clarendon, Orangeburg | 23 min |
| May 4, 9:16 PM EDT | Tornado Warning | CAE | Clarendon, Orangeburg | 44 min |
| May 4, 10:27 PM EDT | Special Weather Statement | CAE | Chesterfield | 48 min |
| May 5, 12:08 AM EDT | Special Weather Statement | CAE | McCormick | 37 min |
| May 5, 12:29 AM EDT | Areal Flood Advisory | CAE | Bamberg, Barnwell, Calhoun, Lexington, Orangeburg, Richland | 2 hr |
| May 5, 12:36 AM EDT | Areal Flood Advisory | CAE | Richland | 114 min |
| May 5, 1:19 AM EDT | Areal Flood Advisory | CAE | Chesterfield, Kershaw, Lancaster, Richland, Sumter | 116 min |
| May 5, 2:10 AM EDT | Areal Flood Advisory | CAE | Chesterfield, Clarendon, Kershaw, Lee, Sumter | 2 hr |
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.