Alert archive / Georgia / Special Weather Statements in 2020
Special Weather Statement, NWS Charleston, SC
NWS Charleston, SC issued this special weather statement at Aug 18, 2020, 1:48 PM EDT for Screven County, Georgia. It was in force for 42 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
- Aug 18, 2020, 1:48 PM EDT (17:48 UTC)
- Expired
- Aug 18, 2020, 2:30 PM EDT
- In force
- 42 min
- Issued by
- NWS Charleston, SC
County Screven County, GA
The radar
The Charleston,SC radar (KCLX), 46 km from the middle of the area, began a volume at 17:50 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, 5.8 hours before the alert went out and 141 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
- 828 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 856 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- -30 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 Aug 18, 10:31 AM EDT, 3 hours 17 minutes earlier.
Area forecast discussion, Aug 18, 10:31 AM EDT, 3 hours 17 minutes before
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</html>Hazardous weather outlook, Aug 18, 4:16 AM EDT, 9 hours 32 minutes before
Hazardous Weather Outlook National Weather Service Charleston SC 416 AM EDT Tue Aug 18 2020 SCZ048>050-190830- Beaufort-Coastal Colleton-Charleston- 416 AM EDT Tue Aug 18 2020 ...MODERATE RISK FOR RIP CURRENTS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... This Hazardous Weather Outlook is for southeast South Carolina. .DAY ONE...Today and 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. Coastal Flooding: Minor coastal flooding is likely with the high tide this evening. A Coastal Flood Advisory will be issued later today. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Coastal Flooding: Minor coastal flooding is likely with the evening high tides through at least Thursday. Coastal Flood Advisories could be needed. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. GAZ117-119-139-141-SCZ051-190830- Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh- Coastal Jasper- 416 AM EDT Tue Aug 18 2020 ...MODERATE RISK FOR RIP CURRENTS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...Today and 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. Coastal Flooding: Minor coastal flooding is likely with the evening high tides through at least Thursday. Coastal Flood Advisories could be needed. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. AMZ330-350-352-354-374-GAZ087-088-099>101-114>116-118-137-138-140- SCZ040-042>045-047-052-190830- 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- 416 AM EDT Tue Aug 18 2020 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...Today and 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.
In the hours before
Special weather statement, Aug 18, 1:48 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Charleston SC
148 PM EDT Tue Aug 18 2020
GAZ088-181830-
Screven-
148 PM EDT Tue Aug 18 2020
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SCREVEN COUNTY...
At 147 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm near Altman, or near Sylvania, moving east at 15
mph.
HAZARD...strong winds 45 to 55 mph.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects.
Some locations in the path of this storm include...
Sylvania, Hiltonia, Newington, Rocky Ford, Woodcliff, Altman,
Hilltonia and Captolo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify. Be certain to monitor local radio and TV
stations as well as local cable TV outlets for additional information
and possible warnings from the National Weather Service.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3291 8177 3304 8154 3301 8149 3296 8151
3290 8147 3288 8148 3288 8145 3285 8146
3284 8142 3278 8143 3277 8142 3277 8143
3274 8141 3270 8143 3265 8139 3263 8142
3260 8139 3257 8143 3253 8165 3267 8187
TIME...MOT...LOC 1747Z 259DEG 13KT 3267 8170The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 2:31 PM EDT | Severe Thunderstorm Warning | CHS | Allendale, Hampton | 59 min |
| Aug 18, 3:21 PM EDT | Coastal Flood Advisory | CHS | 6 hr | |
| Aug 18, 3:56 PM EDT | Areal Flood Advisory | CHS | Charleston | 94 min |
| Aug 18, 4:24 PM EDT | Special Weather Statement | CHS | Jasper | 36 min |
| Aug 18, 4:33 PM EDT | Special Weather Statement | CHS | Colleton | 27 min |
| Aug 18, 4:47 PM EDT | Severe Thunderstorm Warning | CHS | Charleston, Colleton | 58 min |
| Aug 18, 5:58 PM EDT | Special Weather Statement | CHS | Berkeley | 32 min |
| Aug 18, 6:34 PM EDT | Special Weather Statement | CHS | Berkeley | 26 min |
| Aug 18, 2:47 PM EDT | Special Weather Statement | CHS | Candler | 28 min |
| Aug 18, 3:14 PM EDT | Special Weather Statement | CHS | Effingham | 31 min |
| Aug 18, 3:22 PM EDT | Special Weather Statement | CHS | Candler | 23 min |
| Aug 18, 3:46 PM EDT | Special Weather Statement | CHS | Effingham | 29 min |
| Aug 18, 4:17 PM EDT | Special Weather Statement | CHS | Effingham | 43 min |
| Aug 18, 4:37 PM EDT | Severe Thunderstorm Warning | CHS | Bryan | 52 min |
| Aug 18, 5:20 PM EDT | Special Weather Statement | CHS | Liberty | 25 min |
| Aug 18, 5:28 PM EDT | Severe Thunderstorm Warning | CHS | Liberty, Long | 62 min |
Nearby
Special Weather Statements in Georgia, 2020Every special weather statement in 2020
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.