Alert archive / Georgia / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 91, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Aug 23, 2017, 6:19 PM EDT for Bryan County, Chatham County, Effingham 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 23, 2017, 6:19 PM EDT (22:19 UTC)
- Expired
- Aug 23, 2017, 7:01 PM EDT
- In force
- 42 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Bryan County, GA, Chatham County, GA, Effingham County, GA
The radar
The Charleston,SC radar (KCLX), 66 km from the middle of the area, began a volume at 22:23 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, 10.3 hours before the alert went out and 154 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
- 27 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1220 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
281 WUUS52 KCHS 232219 SVRCHS GAC029-051-103-232315- /O.NEW.KCHS.SV.W.0091.170823T2219Z-170823T2315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Charleston SC 619 PM EDT WED AUG 23 2017 The National Weather Service in Charleston has issued a * Severe Thunderstorm Warning for portions of... Bryan County in southeastern Georgia... Effingham County in southeastern Georgia... Chatham County in southeastern Georgia... * Until 715 PM EDT * At 619 PM EDT, a severe thunderstorm was located near Pooler, moving east at 5 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to trees and powerlines. * Locations impacted include... Pooler, Bloomingdale, Eden and Meldrim. This warning includes I-16 between mile markers 147 and 156. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Report damage directly to the Charleston National Weather Service at 1-888-383-2024 when it is safe to do so. && LAT...LON 3209 8142 3218 8142 3220 8128 3208 8127 TIME...MOT...LOC 2219Z 277DEG 6KT 3213 8136 HAIL...0.88IN WIND...60MPH $$
2 follow-up statements
207
WWUS52 KCHS 232251
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
651 PM EDT WED AUG 23 2017
GAC029-103-232301-
/O.CAN.KCHS.SV.W.0091.000000T0000Z-170823T2315Z/
Bryan GA-Effingham GA-
651 PM EDT WED AUG 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR BRYAN AND EFFINGHAM COUNTIES
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area.
LAT...LON 3216 8130 3217 8128 3208 8127 3209 8139
3210 8139
TIME...MOT...LOC 2251Z 248DEG 7KT 3209 8136
$$
GAC051-232315-
/O.CON.KCHS.SV.W.0091.000000T0000Z-170823T2315Z/
Chatham GA-
651 PM EDT WED AUG 23 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR CHATHAM COUNTY...
At 651 PM EDT, a severe thunderstorm was located near I-16/I-95
Interchange, moving east at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Pooler and Bloomingdale.
This warning includes I-16 between mile markers 151 and 156.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so.
&&
LAT...LON 3216 8130 3217 8128 3208 8127 3209 8139
3210 8139
TIME...MOT...LOC 2251Z 248DEG 7KT 3209 8136
HAIL...<.75IN
WIND...60MPH
$$585
WWUS52 KCHS 232301
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
701 PM EDT WED AUG 23 2017
GAC051-232311-
/O.CAN.KCHS.SV.W.0091.000000T0000Z-170823T2315Z/
Chatham GA-
701 PM EDT WED AUG 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR CHATHAM COUNTY IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.
LAT...LON 3216 8130 3217 8128 3208 8127 3209 8139
3210 8139
TIME...MOT...LOC 2257Z 277DEG 6KT 3209 8134
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 4:46 PM EDT | Special Weather Statement | CHS | Bulloch | 29 min |
| Aug 23, 5:37 PM EDT | Special Weather Statement | CHS | Evans | 23 min |
| Aug 23, 5:49 PM EDT | Special Weather Statement | CHS | Bryan | 26 min |
| Aug 23, 6:02 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Evans, Liberty, Tattnall | 58 min |
| Aug 23, 6:11 PM EDT | Special Weather Statement | CHS | Bryan | 34 min |
| Aug 23, 6:15 PM EDT | Special Weather Statement | CHS | Bryan | 15 min |
| Aug 23, 7:08 PM EDT | Special Weather Statement | CHS | Bryan | 37 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 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.