Alert archive / South Carolina / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 107, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jul 20, 2022, 1:58 PM EDT for Colleton County, Hampton County, Jasper County, South Carolina. It was in force for 62 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
- Jul 20, 2022, 1:58 PM EDT (17:58 UTC)
- Expired
- Jul 20, 2022, 3:00 PM EDT
- In force
- 62 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Colleton County, SC, Hampton County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 10 km from the middle of the area, began a volume at 18:00 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
Jacksonville, FL (KJAX), launched 12:00Z, 6.0 hours before the alert went out and 253 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
- 2407 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 577 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
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 Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 19, 7:51 PM EDT, 18 hours 7 minutes earlier.
Area forecast discussion, Jul 19, 7:51 PM EDT, 18 hours 7 minutes before
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</html>Hazardous weather outlook, Jul 19, 3:41 PM EDT, 22 hours 17 minutes before
Hazardous Weather Outlook National Weather Service Charleston SC 341 PM EDT Tue Jul 19 2022 AMZ330-350-352-354-374-GAZ087-088-099>101-114>116-118-137-138-140- SCZ040-042>045-047-052-201945- 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 from 20 to 60 NM- Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Inland Bryan-Inland Chatham-Long-Inland Liberty-Inland McIntosh- Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley- Inland Jasper-Tidal Berkeley- 341 PM EDT Tue Jul 19 2022 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...Tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. GAZ117-119-139-141-SCZ048>051-201945- Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh- Beaufort-Coastal Colleton-Charleston-Coastal Jasper- 341 PM EDT Tue Jul 19 2022 ...MODERATE RISK FOR RIP CURRENTS IN EFFECT THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Moderate Risk for Rip Currents. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Moderate Risk for Rip Currents. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 3:01 AM EDT | Small Craft Advisory | CHS | 16 hr | |
| Jul 20, 12:22 PM EDT | Special Weather Statement | CHS | Allendale | 23 min |
| Jul 20, 1:18 PM EDT | Special Weather Statement | CHS | Allendale | 27 min |
| Jul 20, 1:34 PM EDT | Special Weather Statement | CHS | Hampton | 26 min |
| Jul 20, 1:56 PM EDT | Special Weather Statement | CHS | Hampton | 34 min |
| Jul 20, 2:43 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston | 62 min |
| Jul 20, 2:46 PM EDT | Special Weather Statement | CHS | Beaufort | 44 min |
| Jul 20, 3:03 PM EDT | Special Weather Statement | CHS | Jasper | 27 min |
| Jul 20, 3:09 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Jul 20, 3:22 PM EDT | Special Weather Statement | CHS | Beaufort | 38 min |
| Jul 20, 3:36 PM EDT | Special Weather Statement | CHS | Beaufort | 24 min |
| Jul 20, 3:44 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston, Colleton | 2 hr |
| Jul 20, 4:22 PM EDT | Special Marine Warning | CHS | 113 min | |
| Jul 20, 4:34 PM EDT | Special Marine Warning | CHS | 95 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2022Every severe thunderstorm warning in 2022
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.