Alert archive / Georgia / Flash Flood Warnings in 2010
Flash Flood Warning 2, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Jan 24, 2010, 6:01 PM EST for DeKalb County, Fulton County, Gwinnett County, Georgia. It was in force for 6 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
- Jan 24, 2010, 6:01 PM EST (23:01 UTC)
- Expired
- Jan 24, 2010, 11:32 PM EST
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties DeKalb County, GA, Fulton County, GA, Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 60 km from the middle of the area, began a volume at 23:02 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.0 hours before the alert went out and 57 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 483 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 811 m²/s²
- 0-3 km storm-relative helicity
- 872 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
411
WGUS52 KFFC 242301
FFWFFC
GAC089-121-135-250500-
/O.NEW.KFFC.FF.W.0002.100124T2301Z-100125T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
601 PM EST SUN JAN 24 2010
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DEKALB COUNTY IN NORTH CENTRAL GEORGIA
CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA
WESTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL MIDNIGHT EST MONDAY
* AT 557 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OVER THE WARNED AREA. RAINFALL AMOUNTS OF ONE AND
A HALF TO TWO INCHES HAS FALLEN OVER THE WARNED AREA. ADDITIONAL
RAINFALL AMOUNTS OF UP TO ONE INCH ARE POSSIBLE IN THE WARNED AREA.
THE NORTH FORK AND SOUTH FORK PEACHTREE CREEKS IN DEKALB COUNTY...
AND THE CROOKED AND PEW CREEKS IN GWINNETT COUNTY ARE EXPECTED TO
GO INTO MINOR FLOOD THIS EVENING.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CLARKSTON...BUCKHEAD...SNELLVILLE...NORCROSS...LILBURN...DULUTH...
BERKELEY LAKE...TUCKER...DORAVILLE...CHAMBLEE...DUNWOODY...SANDY
SPRINGS AND ROSWELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
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 3380 8451 3383 8446 3389 8444 3390 8444
3397 8437 3401 8440 3404 8438 3405 8398
3375 8403 3370 8433 3375 8457
$$2 follow-up statements
663
WGUS72 KFFC 250200
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
900 PM EST SUN JAN 24 2010
GAC089-121-135-250500-
/O.CON.KFFC.FF.W.0002.000000T0000Z-100125T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-GWINNETT GA-FULTON GA-
900 PM EST SUN JAN 24 2010
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST FOR
CENTRAL FULTON...WESTERN GWINNETT AND DEKALB COUNTIES...
AT 848 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
SHOW LIGHT TO MODERATE RAIN OVER THE OVER THE WARNED AREA THIS
EVENING. RAINFALL AMOUNTS OF 2 TO 2.5 INCHES HAVE OCCURRED OVER
THIS AREA SINCE EARLY THIS AFTERNOON.
THE NORTH AND SOUTH FORK PEACHTREE CREEKS IN DEKALB COUNTY WERE
IN MINOR FLOOD. THE STAGE HEIGHT OF THE GAGES AT BUFORD HIGHWAY
AND JOHNSON ROAD WERE HOLDING STEADY AROUND FLOOD STAGE OF 12 FEET.
THE PEW CREEK NEAR LAWRENCEVILLE AT PATTERSON ROAD AND THE NO
BUSINESS CREEK NEAR SNELLVILLE WERE IN MINOR FLOOD.
ADDITIONAL RAINFALL AMOUNTS OF LESS THAN A HALF INCH CAN BE
EXPECTED BEFORE ENDING BY MIDNIGHT.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NORCROSS...
LILBURN...DULUTH...BERKELEY LAKE...DORAVILLE...CHAMBLEE...DUNWOODY...
SANDY SPRINGS AND ROSWELL
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EST MONDAY MORNING FOR
GEORGIA.
&&
LAT...LON 3380 8451 3383 8446 3389 8444 3390 8444
3397 8437 3401 8440 3404 8438 3405 8398
3375 8403 3370 8433 3375 8457
$$542
WGUS72 KFFC 250432
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1132 PM EST SUN JAN 24 2010
GAC089-121-135-250500-
/O.CAN.KFFC.FF.W.0002.000000T0000Z-100125T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-GWINNETT GA-FULTON GA-
1132 PM EST SUN JAN 24 2010
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL FULTON...
SOUTHWESTERN GWINNETT AND DEKALB COUNTIES...
THE RAIN HAS ENDED OVER THE PREVIOUSLY WARNED AREA AND THE CREEKS
ARE RECEDING.
LAT...LON 3380 8451 3383 8446 3389 8444 3390 8444
3397 8437 3401 8440 3404 8438 3405 8398
3375 8403 3370 8433 3375 8457
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 2:51 AM EST | High Wind Warning | FFC | Catoosa, Chattooga, Dade, Fannin, Gilmer, Murray and 4 more | 12 hr |
| Jan 24, 11:43 AM EST | River Flood Warning | FFC | Forsyth, Fulton | 50 hr |
| Jan 24, 11:43 AM EST | River Flood Warning | FFC | Gwinnett | 30 hr |
| Jan 24, 12:03 PM EST | River Flood Warning | FFC | Newton, Rockdale | 54 hr |
| Jan 24, 12:03 PM EST | River Flood Warning | FFC | Clarke, Greene, Oconee | 5 days |
| Jan 24, 12:40 PM EST | River Flood Warning | FFC | Dade | 32 hr |
| Jan 24, 3:05 PM EST | Tornado Warning | FFC | Harris, Troup | 40 min |
| Jan 24, 4:59 PM EST | Tornado Warning | FFC | Emanuel, Treutlen | 19 min |
| Jan 24, 6:08 PM EST | Tornado Warning | FFC | Dodge, Laurens, Wheeler | 52 min |
| Jan 24, 6:18 PM EST | Areal Flood Warning | FFC | Fayette | 5 hr |
| Jan 24, 6:53 PM EST | River Flood Warning | FFC | Whitfield | 67 hr |
Nearby
Flash Flood Warnings in Georgia, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.