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 16, 2017, 3:01 PM EDT for Clarendon County, South Carolina. It was in force for 44 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 16, 2017, 3:01 PM EDT (19:01 UTC)
- Expired
- Jul 16, 2017, 3:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Columbia, SC
County Clarendon County, SC
The radar
The Columbia radar (KCAE), 101 km from the middle of the area, began a volume at 19:03 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
Charleston AFB, SC (KCHS), launched 12:00Z, 7.0 hours before the alert went out and 66 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
- 852 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 977 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 16, 2:04 PM EDT, 57 minutes earlier.
Area forecast discussion, Jul 16, 2:04 PM EDT, 57 minutes before
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</head>
<body>
<main class="wrap">
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>Hazardous weather outlook, Jul 16, 3:16 AM EDT, 11 hours 45 minutes before
Hazardous Weather Outlook National Weather Service Columbia SC 316 AM EDT Sun Jul 16 2017 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-170730- Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon- Bamberg- 316 AM EDT Sun Jul 16 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. Thunderstorms through Tonight could possibly contain strong to damaging winds, along with heavy rain with localized flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday, A few thunderstorms with damaging wind will be possible along a decaying surface front. The storms may also contain heavy rain with localized flooding. Friday and Saturday, heat index values may climb back above 105 degrees in many areas. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jul 16, 2:18 PM EDT, 43 minutes before
Special Weather Statement
National Weather Service Columbia SC
218 PM EDT SUN JUL 16 2017
SCZ031-161845-
Sumter-
218 PM EDT SUN JUL 16 2017
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SUMTER COUNTIES...
At 217 PM EDT, a strong thunderstorm was just south of
Sumter, moving northeast at 10 mph.
Wind gusts up to 50 mph are possible with this storm along
with small hail. Ponding of water will occur in poor-drainage
areas. Do not drive on flooded roads.
Locations impacted include...
South Sumter.
LAT...LON 3381 8025 3378 8028 3377 8040 3375 8040
3375 8042 3384 8048 3396 8031 3383 8021
TIME...MOT...LOC 1817Z 236DEG 9KT 3386 8038Special weather statement, Jul 16, 3:01 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Columbia SC
301 PM EDT SUN JUL 16 2017
SCZ036-038-161945-
Orangeburg-Clarendon-
301 PM EDT SUN JUL 16 2017
...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL CLARENDON AND EAST
CENTRAL ORANGEBURG COUNTIES...
At 300 PM EDT, a strong thunderstorm was located 7 miles northwest of
Eastern Lake Marion, or 13 miles south of Manning, moving northeast
at 15 mph.
Wind gusts up to 50 mph are possible with this storm.
Locations impacted include...
Manning, Eutawville and Vance.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
If you are on or near Lake Marion, 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 3350 8010 3350 8012 3348 8015 3346 8013
3346 8015 3345 8015 3346 8016 3345 8017
3345 8020 3344 8020 3345 8022 3339 8022
3332 8034 3342 8052 3370 8020 3359 8005
TIME...MOT...LOC 1900Z 230DEG 12KT 3350 8029
CJRThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 8:00 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg | 45 min |
| Jul 15, 8:34 PM EDT | Flash Flood Warning | CAE | Aiken | 3 hr |
| Jul 16, 2:18 PM EDT | Special Weather Statement | CAE | Sumter | 27 min |
| Jul 16, 4:37 PM EDT | Areal Flood Advisory | CAE | Lee | 113 min |
| Jul 16, 5:11 PM EDT | Special Weather Statement | CAE | McCormick | 49 min |
| Jul 16, 5:50 PM EDT | Special Weather Statement | CAE | Richland | 40 min |
| Jul 16, 5:53 PM EDT | Areal Flood Advisory | CAE | Lexington, Richland | 112 min |
| Jul 16, 5:53 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Richland | 40 min |
| Jul 16, 6:20 PM EDT | Flash Flood Warning | CAE | Kershaw, Richland | 115 min |
| Jul 16, 6:39 PM EDT | Areal Flood Advisory | CAE | Calhoun, Lexington, Orangeburg, Richland, Sumter | 2 hr |
| Jul 16, 6:41 PM EDT | Special Weather Statement | CAE | Calhoun | 49 min |
| Jul 16, 7:14 PM EDT | Special Weather Statement | CAE | Newberry | 46 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.