Alert archive / Georgia / Flash Flood Warnings in 2009
Flash Flood Warning 8, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Jul 12, 2009, 8:38 PM EDT for DeKalb County, Fulton County, Georgia. It was in force for 3 hr. 2 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 12, 2009, 8:38 PM EDT (00:38 UTC)
- Expired
- Jul 12, 2009, 11:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties DeKalb County, GA, Fulton County, GA
The radar
The Atlanta radar (KFFC), 50 km from the middle of the area, began a volume at 00:40 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 12, 9:10 PM EDT | FLASH FLOOD | 1 Nne Virginia Highland, GA | SOUTH FORK OF PEACHTREE CREEK REACHES STAGE OF 12.6 FEET. FLOOD STAGE IS 12.0 FEET. EMERGENCY MANAGER REPORTS HIGH WATER IN THE AREA AND CREEK OUT OF BANKS...BUT JUST MINOR FLOODING. NO DAMAGE TO PROPERTY OR ROAD CLOSURES AT THE TIME. |
| Jul 12, 9:30 PM EDT | FLOOD | Virginia Highland, GA | WSB TV OF ATLANTA REPORTS THAT THE BASEMENTS OF SEVERAL HOMES IN THE VIRGINIA HIGHLAND AREA OF EASTERN FULTON COUNTY NEAR THE SOUTH FORK OF PEACHTREE CREEK WERE FLOODED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.6 hours before the alert went out and 47 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
- 723 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1587 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS52 KFFC 130038 FFWFFC GAC089-121-130330- /O.NEW.KFFC.FF.W.0008.090713T0038Z-090713T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 838 PM EDT SUN JUL 12 2009 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL DEKALB COUNTY IN NORTH CENTRAL GEORGIA CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA * UNTIL 1130 PM EDT * AT 832 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN MOVING ACROSS CENTRAL FULTON AND CENTRAL DEKALB COUNTIES...FROM AVONDALE ESTATES TO ATLANTA...TO COLLEGE PARK. RAINFALL RATES IN THESE STORMS EXCEEDS TWO INCHES PER HOUR IN SOME AREAS. SOME RAINFALL REPORTS OF OVER THREE INCHES OF RAIN HAVE ALREADY BEEN RECEIVED IN WESTERN DEKALB COUNTY FROM PREVIOUS STORMS THIS EVENING. THE SOUTH FORK OF PEACHTREE CREEK IN EASTERN FULTON COUNTY WAS RAPIDLY APPROACHING THE FLOOD STAGE OF 12.0 FEET...AND WILL LIKELY EXCEED THIS VALUE WITHIN THE NEXT HOUR. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD... PINE LAKE...AVONDALE ESTATES...DECATUR...CLARKSTON...DRUID HILLS AND MIDTOWN. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. && LAT...LON 3386 8442 3384 8420 3366 8421 3368 8460 $$
2 follow-up statements
000 WGUS72 KFFC 130151 FFSFFC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 951 PM EDT SUN JUL 12 2009 GAC089-121-130330- /O.CON.KFFC.FF.W.0008.000000T0000Z-090713T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ DEKALB GA-FULTON GA- 951 PM EDT SUN JUL 12 2009 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR CENTRAL FULTON AND SOUTHWESTERN DEKALB COUNTIES... AT 936 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THAT MODERATE RAIN CONTINUES ACROSS THE FLASH FLOOD WARNED AREA. THE STRONGER THUNDERSTORMS HAVE MOVED EAST OF THE AREA. RAINFALL AMOUNTS OF TWO TO THREE INCHES FELL ACROSS CENTRAL FULTON AND CENTRAL DEKALB COUNTIES SINCE 6 PM. SOME SPOTS SAW IN EXCESS OF THREE INCHES OF RAIN THIS EVENING. THE HEAVY RAIN HAS CAUSED THE SOUTH FORK OF PEACHTREE CREEK...LOCATED BETWEEN VIRGINIA HIGHLANDS...TO RISE TO 12.6 FEET. THE FLOOD STAGE IS 12.0 FEET. THIS WATER FLOWING DOWNSTREAM AND ADDITIONAL HEAVY RAINFALL IN THE BASIN HAS ALSO CAUSED SIGNIFICANT RISES ALONG PEACHTREE CREEK. PEACHTREE CREEK NEAR NORTHSIDE DRIVE HAD RISEN TO 8.2 FEET AT 945 PM. ACTION STAGE IS 13.0 FEET AND FLOOD STAGE IS 17.0 FEET. WHILE ADDITIONAL RISES ARE EXPECTED...FLOODING ON PEACHTREE CREEK AT NORTHSIDE DRIVE IS NOT EXPECTED AT THIS TIME. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD... PINE LAKE...AVONDALE ESTATES...DECATUR...CLARKSTON...DRUID HILLS AND MIDTOWN PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. 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. IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. && LAT...LON 3386 8442 3384 8420 3366 8421 3368 8460 $$ 19
000 WGUS72 KFFC 130336 FFSFFC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1136 PM EDT SUN JUL 12 2009 GAC089-121-130340- /O.EXP.KFFC.FF.W.0008.000000T0000Z-090713T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ DEKALB GA-FULTON GA- 1136 PM EDT SUN JUL 12 2009 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR CENTRAL FULTON AND SOUTHWESTERN DEKALB COUNTIES... THE HEAVY RAINFALL THAT PROMPTED THE FLASH FLOOD WARNING FOR THESE AREAS HAS MOVED EAST OUT OF THE AREA. ONLY LIGHT RAIN AND A FEW SPOTTY HEAVIER SHOWERS ARE NOTED IN THE AREA AT THIS TIME. THE SOUTH FORK OF THE PEACHTREE CREEK NEAR VIRGINIA HIGHLAND HAS FALLEN BELOW THE 12.0 FOOT FLOOD STAGE. THE CREEK HAD FALLEN RAPIDLY AND WAS DOWN TO 7.9 FEET AT 1130 PM EDT. ALONG THE NORTH FORK OF PEACHTREE CREEK...JUST NORTHWEST OF LA VISTA...THE CREEK CRESTED AT 10.7 FEET AT 10 PM EDT...JUST BELOW THE ACTION STAGE OF 11.0 FEET...AND HAD FALLEN BELOW THE ACTION STAGE BY 1130 PM EDT. ON PEACHTREE CREEK NEAR NORTHSIDE DRIVE...UPSTREAM RUNOFF HAD CAUSED THE CREEK TO RISE TO 14.0 FEET AT 1130 PM...WELL ABOVE THE 13.0 FOOT ACTION STAGE. RUNOFF IS DECREASING AND RAINFALL HAS MOSTLY ENDED IN THIS AREA. THUS...AT THIS TIME...PEACHTREE CREEK IS NOT EXPECTED TO REACH THE 17.0 FOOT FLOOD STAGE NEAR NORTHSIDE DRIVE. IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. LAT...LON 3386 8442 3384 8420 3366 8421 3368 8460 $$ 19
Nearby
Flash Flood Warnings in Georgia, 2009Every flash flood warning in 2009
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.