Alert archive / Georgia / Flash Flood Warnings in 2010

Flash Flood Warning 2, NWS Columbia, SC

January 24, 2010Columbia County, Richmond County, Georgia; Aiken County, South Carolina

NWS Columbia, SC issued this flash flood warning at Jan 24, 2010, 11:11 PM EST for Columbia County, Richmond County, Georgia; Aiken County, South Carolina. It was in force for 59 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
Jan 24, 2010, 11:11 PM EST (04:11 UTC)
Expired
Jan 25, 2010, 12:10 AM EST
In force
59 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Flood severity
None

Counties Columbia County, GA, Richmond County, GA, Aiken County, SC

The radar

The Columbia radar (KCAE), 99 km from the middle of the area, began a volume at 04:14 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

TimeReportWhereRemark
Jan 25, 12:15 AM ESTFLASH FLOODAugusta, GAMINOR FLOODING OF STREET IN FRONT OF HOSPITAL

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 4.2 hours before the alert went out and 200 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-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2010-01-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 319 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2010-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 385 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
319 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
602 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
385 m²/s²
0-3 km storm-relative helicity
440 m²/s²
Significant tornado parameter
0.6
Supercell composite
2.9

Open this sounding in Storm Lab

The text

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

472 
WGUS52 KCAE 250411
FFWCAE
GAC073-245-SCC003-250700-
/O.NEW.KCAE.FF.W.0002.100125T0411Z-100125T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1111 PM EST SUN JAN 24 2010

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  AIKEN COUNTY IN CENTRAL SOUTH CAROLINA...
  COLUMBIA COUNTY IN EAST CENTRAL GEORGIA...
  THIS INCLUDES THE CITIES OF...MARTINEZ...EVANS...
  RICHMOND COUNTY IN EAST CENTRAL GEORGIA...
  THIS INCLUDES THE CITY OF AUGUSTA...

* UNTIL 200 AM EST

* AT 1101 PM EST...RADAR ESTIMATED RAINFALL AMOUNTS OF OVER 1.25 
  INCHES HAS FALLEN OVER THE PAST ONE AND A HALF HOURS CAUSED BY 
  SHOWERS AND ISOLATED THUNDERSTORMS. AN ADDITIONAL INCH OF RAIN CAN 
  BE EXPECTED IN THE NEXT HOUR IN THE WARNED AREA.

* THE STORMS THAT WILL PRODUCE FLASH FLOODING WILL OTHERWISE REMAIN 
  OVER MAINLY RURAL AREAS OF THE INDICATED COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

REPORT FLOODING TO YOUR COUNTY SHERIFF...OR CALL THE NATIONAL WEATHER
SERVICE...TOLL FREE 1 877 6 3 3...6 7 7 2.

LAT...LON 3357 8207 3356 8205 3355 8204 3354 8201
      3330 8176 3330 8202 3348 8221

$$
1 follow-up statement
105 
WGUS72 KCAE 250510
FFSCAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
1210 AM EST MON JAN 25 2010

GAC073-245-SCC003-250518-
/O.CAN.KCAE.FF.W.0002.000000T0000Z-100125T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RICHMOND GA-COLUMBIA GA-AIKEN SC-
1210 AM EST MON JAN 25 2010

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR AIKEN...COLUMBIA
AND RICHMOND COUNTIES...

THE HEAVY RAIN HAS MOVED EAST OF THE AREA. ONLY LIGHT RAIN SHOWERS 
CAN BE EXPECTED FOR THE REMAINDER OF THE NIGHT. 

REPORT FLOODING TO YOUR COUNTY SHERIFF...OR CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 877 6 3 3...6 7 7 2.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM EST MONDAY MORNING FOR
EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.

LAT...LON 3357 8207 3356 8205 3355 8204 3354 8201
      3330 8176 3330 8202 3348 8221

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 9:52 PM ESTAreal Flood AdvisoryCAEColumbia, Lincoln, McDuffie2 hr
Jan 24, 10:11 PM ESTSevere Thunderstorm WarningCAEColumbia, Lincoln, McDuffie49 min
Jan 24, 10:26 PM ESTFlash Flood WarningCAEColumbia, Lincoln, McDuffie84 min
Jan 24, 10:53 PM ESTSevere Thunderstorm WarningCAEBurke, Richmond37 min
Jan 24, 11:30 PM ESTSevere Thunderstorm WarningCAEBurke45 min
Jan 24, 11:05 PM ESTSevere Thunderstorm WarningCAEAiken, Edgefield, Saluda40 min
Jan 24, 11:34 PM ESTAreal Flood AdvisoryCAEAiken, Edgefield, Fairfield, Kershaw, Lancaster, Lexington and 3 more100 min
Jan 24, 11:47 PM ESTSevere Thunderstorm WarningCAEAiken, Lexington, Newberry, Richland, Saluda43 min
Jan 25, 12:19 AM ESTSevere Thunderstorm WarningCAEAiken, Bamberg, Barnwell, Calhoun, Fairfield, Kershaw and 3 more71 min
Jan 25, 12:23 AM ESTFlash Flood WarningCAELancaster69 min
Jan 25, 1:26 AM ESTSevere Thunderstorm WarningCAEBamberg, Calhoun, Chesterfield, Clarendon, Kershaw, Lee and 2 more64 min
Jan 25, 1:58 AM ESTAreal Flood AdvisoryCAECalhoun, Chesterfield, Lee, Richland, Sumter62 min
Jan 25, 2:27 AM ESTRiver Flood WarningCAEEdgefield, McCormick22 hr
Jan 25, 3:03 AM ESTRiver Flood WarningCAENewberry, Union63 hr
Jan 25, 3:12 AM ESTRiver Flood WarningCAEFairfield, Newberry3 days
Jan 25, 11:57 AM ESTRiver Flood WarningCAEChesterfield, Marlboro4 days
Jan 25, 11:57 AM ESTRiver Flood WarningCAEFairfield, Kershaw, Lancaster8 days
Jan 25, 11:57 AM ESTRiver Flood WarningCAEKershaw4 days
Jan 25, 11:57 AM ESTRiver Flood WarningCAELexington, Richland62 hr
Jan 25, 11:57 AM ESTRiver Flood WarningCAECalhoun, Richland5 days
Jan 25, 11:57 AM ESTRiver Flood WarningCAECalhoun, Lexington, Richland7 days

Nearby

Flash Flood Warnings in Georgia, 2010Flash Flood Warnings in South Carolina, 2010Every flash flood warning in 2010

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.