Alert archive / Georgia / Flash Flood Warnings in 2008

Flash Flood Warning 9, NWS Charleston, SC

July 28, 2008Long County, Georgia

NWS Charleston, SC issued this flash flood warning at Jul 28, 2008, 7:05 PM EDT for Long County, Georgia. It was in force for 76 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2008, 7:05 PM EDT (23:05 UTC)
Expired: Jul 28, 2008, 8:21 PM EDT
In force: 76 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Flood severity: None

County Long County, GA

The radar

The Charleston,SC radar (KCLX), 129 km from the middle of the area, began a volume at 23:07 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.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 7:31 PM EDT	HEAVY RAIN 0	Ludowici, GA	LAW ENFORCEMENT REPORTED MINOR FLOODING ALONG MACON STREET IN LUDOWICI GEORGIA. ROAD IS STILL PASSABLE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.1 hours before the alert went out and 135 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1667 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 724 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS52 KCHS 282305
FFWCHS
GAC183-290100-
/O.NEW.KCHS.FF.W.0009.080728T2305Z-080729T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
705 PM EDT MON JUL 28 2008

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN LONG COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 900 PM EDT

* AT 659 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN...WITH RAINFALL RATES AS HIGH AS 4 INCHES PER      
  HOUR...OCCURRING ALONG A LINE EXTENDING FROM 6 MILES SOUTHWEST OF  
  DONALD TO 3 MILES SOUTHWEST OF LUDOWICI. THE AREA OF HEAVY RAIN    
  WAS NEARLY STATIONARY.

* FLASH FLOODING IS EXPECTED IN AND AROUND...
  LUDOWICI...DONALD...
  AREAS ALONG THE ALTAMAHA RIVER ALONG AND NORTH OF
  ROUTES 25 AND 301... 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024.

LAT...LON 3159 8172 3161 8176 3164 8180 3164 8182
      3174 8192 3174 8194 3178 8198 3181 8198
      3190 8189 3197 8188 3163 8162 3155 8168

$$

2 follow-up statements

000 
WGUS72 KCHS 282344
FFSCHS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
744 PM EDT MON JUL 28 2008

GAC183-290100-
/O.CON.KCHS.FF.W.0009.000000T0000Z-080729T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LONG GA-
744 PM EDT MON JUL 28 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR
WESTERN LONG COUNTY...

AT 737 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT RAINFALL RATES ACROSS WESTERN LONG COUNTY WERE DECREASING 
RAPIDLY. 

HOWEVER...RUNOFF FROM TORRENTIAL RAINFALL THAT HAD ALREADY OCCURRED 
THIS EVENING WILL CONTINUE TO PRODUCE FLASH FLOODING IN AND AROUND 
DONALD AND LUDOWICI...AND ESPECIALLY WEST OF STATE ROUTE 57. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV.

LAT...LON 3159 8172 3161 8176 3164 8180 3164 8182
      3174 8192 3174 8194 3178 8198 3181 8198
      3190 8189 3197 8188 3163 8162 3155 8168

$$

000 
WGUS72 KCHS 290021
FFSCHS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
821 PM EDT MON JUL 28 2008

GAC183-290030-
/O.CAN.KCHS.FF.W.0009.000000T0000Z-080729T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LONG GA-
821 PM EDT MON JUL 28 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WESTERN LONG
COUNTY...

ONLY LIGHT SHOWERS REMAINED ACROSS WESTERN LONG COUNTY. THE FLASH 
FLOOD WARNING HAS THEREFORE BEEN CANCELLED. 

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV.

LAT...LON 3159 8172 3161 8176 3164 8180 3164 8182
      3174 8192 3174 8194 3178 8198 3181 8198
      3190 8189 3197 8188 3163 8162 3155 8168

$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 3:42 PM EDT	Areal Flood Advisory	CHS	Bulloch	63 min
Jul 28, 4:03 PM EDT	Severe Thunderstorm Warning	CHS	Effingham	27 min
Jul 28, 4:29 PM EDT	Tornado Warning	CHS	Effingham	51 min
Jul 28, 4:57 PM EDT	Severe Thunderstorm Warning	CHS	Chatham, Effingham	43 min
Jul 28, 5:31 PM EDT	Areal Flood Advisory	CHS	Chatham, Effingham	38 min
Jul 28, 5:52 PM EDT	Areal Flood Advisory	CHS	Liberty, Long, McIntosh	83 min

Nearby

Flash Flood Warnings in Georgia, 2008 Every flash flood warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.