Alert archive / Georgia / Flash Flood Warnings in 2011
Flash Flood Warning 3, NWS Columbia, SC
NWS Columbia, SC issued this flash flood warning at Jul 10, 2011, 10:44 PM EDT for Richmond County, Georgia. It was in force for 61 min. 4 reports 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 10, 2011, 10:44 PM EDT (02:44 UTC)
- Expired
- Jul 10, 2011, 11:45 PM EDT
- In force
- 61 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Flood severity
- None
County Richmond County, GA
The radar
The Columbia radar (KCAE), 102 km from the middle of the area, began a volume at 02:46 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 10, 10:46 PM EDT | FLASH FLOOD | 3 Wnw Augusta, GA | 2 VEHICLES STALLED ON FLOODED ROADWAYS NEAR DANIEL FIELD. |
| Jul 10, 11:10 PM EDT | FLASH FLOOD | 2 Wnw Augusta, GA | CENTRAL AVE BETWEEN HIGHLAND AVE AND PINE NEEDLE RD IMPASSABLE DUE TO FLOODING AND HAS BEEN BARRICADED. THIS IS NEAR DANIEL FIELD. |
| Jul 10, 11:12 PM EDT | HEAVY RAIN 1.54 | 2 Ene Augusta, GA | 1.54 INCHES OF RAIN FELL AT THE NWS RAIN GAGE AT 11TH ST AND THE SAVANNAH RIVER AT THE RIVERWALK |
| Jul 10, 11:12 PM EDT | HEAVY RAIN 2.8 | 3 Wnw Augusta, GA | 2.80 INCHES OF RAIN FELL AT AUGUSTA DANIEL FIELD. MOST OF THIS FELL IN ABOUT ONE HOUR BETWEEN 10PM AND 11PM EDT. AT THE TIME OF HEAVIEST RAIN...0.97 INCHES OF THIS FELL IN JUST 11 MINUTES. |
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, 2.7 hours before the alert went out and 199 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
- 2648 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
473 WGUS52 KCAE 110244 FFWCAE GAC245-110345- /O.NEW.KCAE.FF.W.0003.110711T0244Z-110711T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 1044 PM EDT SUN JUL 10 2011 THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A * FLASH FLOOD WARNING FOR... RICHMOND COUNTY IN EAST CENTRAL GEORGIA... THIS INCLUDES THE CITY OF AUGUSTA... * UNTIL 1145 PM EDT * AT 1033 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. ONE AND ONE-HALF TO TWO AND ONE HALF INCHES OF RAINFALL HAS BEEN MEASURED IN THE AUGUSTA AREA DURING THE PAST HOUR. RUNOFF FROM THIS RAIN WILL LEAD TO FLOODING OF LOW-LYING AND FLOOD PRONE AREAS. RICHMOND COUNTY DISPATCH CENTER REPORTED STALL VEHICLES IN THE THE AREA OF DANIEL FIELD AIRPORT. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AUGUSTA PRECAUTIONARY/PREPAREDNESS ACTIONS... FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN COLUMBIA. && 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 3350 8207 3347 8196 3337 8197 3341 8212 $$ LM/DM
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 9:32 PM EDT | Special Weather Statement | CAE | Richmond | 43 min |
| Jul 10, 10:22 PM EDT | Areal Flood Advisory | CAE | Richmond | 53 min |
| Jul 11, 2:43 PM EDT | Heat Advisory | CAE | Burke, Columbia, Lincoln, McDuffie, Richmond | 22 hr |
Nearby
Flash Flood Warnings in Georgia, 2011Every flash flood warning in 2011
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.