Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 33, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at May 29, 2017, 9:35 PM EDT for Williamsburg County, South Carolina. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 29, 2017, 9:35 PM EDT (01:35 UTC)
- Expired
- May 29, 2017, 10:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Wilmington, NC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 127 km from the middle of the area, began a volume at 01:37 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
Newport, NC (KMHX), launched 00:00Z, 1.6 hours before the alert went out and 292 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
- 172 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1476 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 7:26 PM EDT, 2 hours 9 minutes earlier.
Area forecast discussion, May 29, 7:26 PM EDT, 2 hours 9 minutes before
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</html>Hazardous weather outlook, May 29, 3:37 PM EDT, 5 hours 58 minutes before
Hazardous Weather Outlook National Weather Service Wilmington NC 337 PM EDT Mon May 29 2017 NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-053>056-301945- Robeson-Bladen-Columbus-Inland Pender-Coastal Pender- Inland New Hanover-Coastal New Hanover-Inland Brunswick- Coastal Brunswick-Marlboro-Darlington-Dillon-Florence-Marion- Williamsburg-Inland Horry-Coastal Horry-Inland Georgetown- Coastal Georgetown- 337 PM EDT Mon May 29 2017 This Hazardous Weather Outlook is for southeast North Carolina and northeast South Carolina. .DAY ONE...This Afternoon and Tonight. There is a slight risk for severe thunderstorms tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. AMZ250-252-254-256-301945- Coastal waters from Surf City to Cape Fear NC out 20 nm- Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm- Coastal waters from Little River Inlet to Murrells Inlet SC out 20 nm- Coastal waters from Murrells Inlet to South Santee River SC out 20 nm- 337 PM EDT Mon May 29 2017 This Hazardous Weather Outlook is for The adjacent Coastal Waters. .DAY ONE...This Afternoon and Tonight. There is a slight risk for severe thunderstorms tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Small craft exercise conditions are possible late Friday into the weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 8:54 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Williamsburg | 66 min |
| May 29, 9:59 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Georgetown, Horry, Marion, Williamsburg | 61 min |
| May 29, 10:28 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Georgetown, Horry, Marion, Williamsburg | 32 min |
| May 29, 10:59 PM EDT | Special Weather Statement | ILM | Horry | 46 min |
| May 29, 11:11 PM EDT | Special Marine Warning | ILM | 94 min | |
| May 29, 11:41 PM EDT | Special Weather Statement | ILM | Horry | 34 min |
| May 30, 3:33 AM EDT | Special Marine Warning | ILM | 57 min | |
| May 30, 3:51 AM EDT | Special Weather Statement | ILM | Horry | 24 min |
| May 29, 10:18 PM EDT | Special Weather Statement | ILM | Robeson | 57 min |
| May 29, 11:01 PM EDT | Special Weather Statement | ILM | Bladen | 59 min |
| May 29, 11:57 PM EDT | Special Weather Statement | ILM | Pender | 63 min |
| May 30, 1:12 AM EDT | Special Weather Statement | ILM | Columbus | 33 min |
| May 30, 3:02 AM EDT | Special Weather Statement | ILM | New Hanover | 43 min |
| May 30, 3:31 AM EDT | Special Weather Statement | ILM | New Hanover | 14 min |
| May 30, 3:53 AM EDT | Special Weather Statement | ILM | Columbus | 37 min |
| May 30, 4:04 AM EDT | Special Weather Statement | ILM | New Hanover | 26 min |
| May 30, 4:16 AM EDT | Special Weather Statement | ILM | Pender | 44 min |
| May 30, 4:35 AM EDT | Special Weather Statement | ILM | Pender | 25 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2017Every severe thunderstorm warning 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.