Alert archive / South Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Charleston, SC
NWS Charleston, SC issued this special weather statement at Apr 18, 2017, 2:15 PM EDT for Jasper County, South Carolina. It was in force for 30 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
- Apr 18, 2017, 2:15 PM EDT (18:15 UTC)
- Expired
- Apr 18, 2017, 2:45 PM EDT
- In force
- 30 min
- Issued by
- NWS Charleston, SC
County Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 41 km from the middle of the area, began a volume at 18:15 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, 6.3 hours before the alert went out and 117 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
- 8 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1292 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 42 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 Charleston, SC wrote its last area forecast discussion before this special weather statement went out at Apr 18, 1:30 PM EDT, 45 minutes earlier.
Area forecast discussion, Apr 18, 1:30 PM EDT, 45 minutes before
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</html>Hazardous weather outlook, Apr 18, 3:26 AM EDT, 10 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Charleston SC 326 AM EDT Tue Apr 18 2017 AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ047>051- 190730- Charleston Harbor- Waters from South Santee River to Edisto Beach SC out 20 nm- Waters from Edisto Beach SC to Savannah GA out 20 nm- Waters from Savannah GA to Altamaha Sound GA out 20 nm...including Grays Reef National Marine Sanctuary- Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 nm-Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long- Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh- Inland Jasper-Beaufort-Coastal Colleton-Charleston-Coastal Jasper- 326 AM EDT Tue Apr 18 2017 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. SCZ040-042>045-052-190730- Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley- Tidal Berkeley- 326 AM EDT Tue Apr 18 2017 This Hazardous Weather Outlook is for southeast South Carolina. .DAY ONE...Today and Tonight. Heavy Rain: Scattered to numerous showers and thunderstorms could impact interior Southeast South Carolina this afternoon and evening. These storms will be very slow moving and capable of producing localized rain amounts in excess of 2 inches in a very short time. Minor flooding of low lying and poor drainage areas will be possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
In the hours before
Special weather statement, Apr 18, 2:15 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 2:58 PM EDT | Special Weather Statement | CHS | Colleton | 32 min |
| Apr 18, 3:23 PM EDT | Special Weather Statement | CHS | Charleston | 37 min |
| Apr 18, 3:47 PM EDT | Special Weather Statement | CHS | Colleton | 28 min |
| Apr 18, 4:00 PM EDT | Special Weather Statement | CHS | Dorchester | 30 min |
| Apr 18, 4:04 PM EDT | Severe Thunderstorm Warning | CHS | Dorchester | 41 min |
| Apr 18, 6:39 PM EDT | Special Weather Statement | CHS | Berkeley | 36 min |
| Apr 18, 4:52 PM EDT | Special Weather Statement | CHS | Effingham | 23 min |
| Apr 18, 5:05 PM EDT | Severe Thunderstorm Warning | CHS | Effingham | 55 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.