Alert archive / Georgia / Flash Flood Warnings in 2024
Flash Flood Warning 13, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Aug 7, 2024, 12:18 PM EDT for Bulloch County, Georgia. It was in force for 51 hr. 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 7, 2024, 12:18 PM EDT (16:18 UTC)
- Expired
- Aug 9, 2024, 3:15 PM EDT
- In force
- 51 hr
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- Moderate
County Bulloch County, GA
The radar
The Charleston,SC radar (KCLX), 82 km from the middle of the area, began a volume at 16:20 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, 4.3 hours before the alert went out and 183 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
- 110 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 544 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
655
WGUS52 KCHS 071618
FFWCHS
GAC031-071915-
/O.NEW.KCHS.FF.W.0013.240807T1618Z-240807T1915Z/
/00000.2.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston SC
1218 PM EDT Wed Aug 7 2024
The National Weather Service in Charleston has issued a
* Flash Flood Warning for...
A Dam Failure below The Cypress Lake Dam in...
Bulloch County in southeastern Georgia...
* Until 315 PM EDT.
* At 1218 PM EDT, local law enforcement reported the imminent
failure of The Cypress Lake Dam.
HAZARD...Life threatening flash flooding from the imminent
failure of The Cypress Lake Dam.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of areas downstream
from the Cypress Lake Dam.
* If the dam breaks, flash flooding will occur immediately
downstream of the dam, including Cypress Lake Mobile Home Park,
Dry Ranch Village and portions of Cypress Lake Road, Cypress Lake
Drive and Cypress Lake Court. If asked to evacuate from local
officials, do so.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are in low lying areas below the The Cypress Lake Dam you
should move to higher ground immediately.
&&
LAT...LON 3240 8185 3239 8185 3239 8188 3240 8187
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
DAM FAILURE...IMMINENT
$$
ST4 follow-up statements
038
WGUS52 KCHS 071849
FFWCHS
GAC031-081915-
/O.EXT.KCHS.FF.W.0013.000000T0000Z-240808T1915Z/
/00000.2.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston SC
249 PM EDT Wed Aug 7 2024
The National Weather Service in Charleston has extended the
* Flash Flood Warning for...
A Dam Failure below The Cypress Lake Dam in...
Bulloch County in southeastern Georgia...
* Until 315 PM EDT Thursday.
* At 249 PM EDT, local law enforcement reported the imminent failure
of The Cypress Lake Dam.
HAZARD...Life threatening flash flooding from the imminent
failure of The Cypress Lake Dam.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of areas downstream
from the Cypress Lake Dam.
* If the dam breaks, flash flooding will occur immediately
downstream of the dam, including Cypress Lake Mobile Home Park,
Dry Ranch Village and portions of Cypress Lake Road, Cypress Lake
Drive and Cypress Lake Court. Flood waters would then travel south
to Highway 301. If asked to evacuate from local officials, do so.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are in low lying areas below the The Cypress Lake Dam you
should move to higher ground immediately.
&&
LAT...LON 3240 8185 3239 8185 3239 8188 3240 8187
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
DAM FAILURE...IMMINENT
$$
ST407
WGUS52 KCHS 081851
FFWCHS
GAC031-091915-
/O.EXT.KCHS.FF.W.0013.000000T0000Z-240809T1915Z/
/00000.2.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston SC
251 PM EDT Thu Aug 8 2024
The National Weather Service in Charleston has extended the
* Flash Flood Warning for...
A Dam Failure below The Cypress Lake Dam in...
Bulloch County in southeastern Georgia...
* Until 315 PM EDT Friday.
* At 251 PM EDT, local law enforcement continues to report that the
Cypress Lake Dam could fail at any time.
HAZARD...Life threatening flash flooding from the imminent
failure of The Cypress Lake Dam.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of areas downstream
from the Cypress Lake Dam.
* If the dam breaks, flash flooding will occur immediately
downstream of the dam, including Cypress Lake Mobile Home Park,
Dry Ranch Village and portions of Cypress Lake Road, Cypress Lake
Drive and Cypress Lake Court. Flood waters would then travel south
to Highway 301. If asked to evacuate from local officials, do so.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are in low lying areas below the The Cypress Lake Dam you
should move to higher ground immediately.
&&
LAT...LON 3240 8185 3239 8185 3239 8188 3240 8187
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
DAM FAILURE...IMMINENT
$$
BRM995
WGUS72 KCHS 090013
FFSCHS
Flash Flood Statement
National Weather Service Charleston SC
813 PM EDT Thu Aug 8 2024
GAC031-091915-
/O.CON.KCHS.FF.W.0013.000000T0000Z-240809T1915Z/
/00000.2.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bulloch GA-
813 PM EDT Thu Aug 8 2024
...FLASH FLOOD WARNING FOR THE FAILURE OF THE CYPRESS LAKE DAM
REMAINS IN EFFECT UNTIL 315 PM EDT FRIDAY FOR BULLOCH COUNTY...
At 813 PM EDT, local law enforcement continues to report that the
Cypress Lake Dam could fail at any time.
HAZARD...Life threatening flash flooding from the imminent
failure of The Cypress Lake Dam.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of areas downstream from
the Cypress Lake Dam.
If the dam breaks, flash flooding will occur immediately downstream
of the dam, including Cypress Lake Mobile Home Park, Dry Ranch
Village and portions of Cypress Lake Road, Cypress Lake Drive and
Cypress Lake Court. Flood waters would then travel south to Highway
301. If asked to evacuate from local officials, do so.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are in low lying areas below the The Cypress Lake Dam you
should move to higher ground immediately.
&&
LAT...LON 3240 8185 3239 8185 3239 8188 3240 8187
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
DAM FAILURE...IMMINENT
$$
ST366 WGUS72 KCHS 091909 FFSCHS Flash Flood Statement National Weather Service Charleston SC 309 PM EDT Fri Aug 9 2024 GAC031-091919- /O.EXP.KCHS.FF.W.0013.000000T0000Z-240809T1915Z/ /00000.2.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Bulloch GA- 309 PM EDT Fri Aug 9 2024 ...FLASH FLOOD WARNING FOR THE FAILURE OF THE CYPRESS LAKE DAM WILL EXPIRE AT 315 PM EDT THIS AFTERNOON FOR BULLOCH COUNTY... Bulloch County Emergency Management reports the situation along the Cypress Dam has improved some today, but the dam is still in danger of failing. Although the Dam Break Warning is expiring, continue to heed any evacuation orders from emergency officials. && LAT...LON 3240 8185 3239 8185 3239 8188 3240 8187 $$ ST
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 8:15 PM EDT | Areal Flood Warning | CHS | Jenkins, Screven | 14 hr |
| Aug 6, 10:11 PM EDT | Areal Flood Warning | CHS | Bryan, Bulloch, Chatham, Effingham, Evans, Liberty and 2 more | 12 hr |
| Aug 6, 10:24 PM EDT | Areal Flood Warning | CHS | Screven | 12 hr |
| Aug 6, 10:35 PM EDT | Areal Flood Advisory | CHS | Long, Tattnall | 5 hr |
| Aug 7, 5:56 AM EDT | River Flood Warning | CHS | Bulloch, Jenkins, Screven | 58 hr |
| Aug 7, 9:44 AM EDT | Areal Flood Warning | CHS | Bulloch, Candler, Effingham, Jenkins, Screven | 50 hr |
| Aug 7, 9:45 AM EDT | Areal Flood Warning | CHS | Bryan, Chatham, Evans, Liberty | 23 hr |
| Aug 7, 4:54 PM EDT | Small Craft Advisory | CHS | 45 hr |
Nearby
Flash Flood Warnings in Georgia, 2024Every flash flood warning in 2024
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.