Alert archive / Georgia / Flash Flood Warnings in 2008

Flash Flood Warning 10, NWS Atlanta, GA

July 31, 2008Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 31, 2008, 9:48 PM EDT for Fulton County, Georgia. It was in force for 3 hr. 3 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 31, 2008, 9:48 PM EDT (01:48 UTC)
Expired
Aug 1, 2008, 12:45 AM EDT
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

County Fulton County, GA

The radar

The Atlanta radar (KFFC), 30 km from the middle of the area, began a volume at 01:49 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
Jul 31, 10:14 PM EDTFLOODFairburn, GASTREET FLOODING WAS OCCURRING ON EAST CAMPBELLTON ST /HWY 92/ IN DOWNTOWN FAIRBURN.
Jul 31, 10:20 PM EDTHEAVY RAIN 4.86Fairburn, GAPUBLIC REPORT RELAYED VIA FOX5 ATLANTA
Jul 31, 10:24 PM EDTFLASH FLOOD7 Nw Palmetto, GAFULTON COUNTY EMA OPERATIONS OFFICER REPORTED 6 INCHES OF WATER FLOWING OVER CAMPBELLTON REDWINE ROAD ONE HALF MILE NORTHEAST OF BEAR CREEK. AN NWS FLOOD SURVEY CONDUCTED ON FRIDAY INDICATED BEAR CREEK HAD HIGH WATER MARKS 2 FEET HIGHER THAN BANKFULL WHICH CAU

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.8 hours before the alert went out and 206 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, Birmingham, AL at 00:00Z on 2008-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1369 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, Birmingham, AL at 00:00Z on 2008-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 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
1369 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1415 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
52 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 KFFC 010149
FFWFFC
GAC121-010445-
/O.NEW.KFFC.FF.W.0010.080801T0148Z-080801T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
948 PM EDT THU JUL 31 2008

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FULTON COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 1245 AM EDT

* AT 948 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNION CITY
  AND UNINCORPORATED SOUTH FULTON COUNTY BETWEEN UNION CITY AND THE
  CHATTAHOOCHEE RIVER.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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.

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 3368 8462 3367 8459 3364 8451 3361 8451
      3353 8460 3358 8479 3361 8475 3365 8469

$$
3 follow-up statements
000 
WGUS72 KFFC 010233
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1023 PM EDT THU JUL 31 2008

GAC121-010445-
/O.CON.KFFC.FF.W.0010.000000T0000Z-080801T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FULTON GA-
1023 PM EDT THU JUL 31 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
FULTON COUNTY...

AT 1024 PM EDT...RADAR CONTINUED TO SHOW RAIN FALLING IN SOUTH
FULTON COUNTY. HEAVIEST RAIN WAS JUST NORTHWEST OF PALMETTO...
MOVING SOUTHEAST AT 5 MPH.

RAIN HAS BEEN FALLING ACROSS PORTIONS OF SOUTH FULTON COUNTY 
SINCE JUST BEFORE SUNSET. RAINFALL TOTALS HAVE AVERAGED AROUND 
4 INCHES AND AMOUNTS MAY REACH 5 TO 6 INCHES BEFORE RAIN ENDS
BETWEEN 11 PM AND MIDNIGHT.

AREAS MOST LIKELY TO BE AFFECTED ARE NEAR PEA CREEK...
DEEP CREEK...AND LITTLE BEAR CREEK. THIS IS IN THE PORTION OF
THE COUNTY BETWEEN THE CHATTAHOOCHEE RIVER AND UNION CITY AND
FAIRBURN. 

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 3368 8462 3367 8459 3364 8451 3361 8451
      3353 8460 3358 8479 3361 8475 3365 8469

$$
000 
WGUS72 KFFC 010352
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1144 PM EDT THU JUL 31 2008

GAC121-010445-
/O.CON.KFFC.FF.W.0010.000000T0000Z-080801T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FULTON GA-
1144 PM EDT THU JUL 31 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
FULTON COUNTY...

AT 1142 PM EDT...ONLY LIGHT RAIN WAS FALLING IN SOUTH FULTON COUNTY.
RAIN MAY CONTINUE UNTIL 1245 PM...BUT ADDITIONAL RAINFALL IS NOT
EXPECTED TO FURTHER AGGRAVATE ANY ONGOING FLOODING.

RAINFALL TOTALS SINCE THE RAIN BEGAN PRIOR TO SUNSET THURSDAY HAVE
BEEN MEASURED IN EXCESS OF 4 INCHES. RADAR ESTIMATES SHOW SOME AREAS
MAY HAVE RECEIVED OVER 6 INCHES. 

AREAS MOST LIKELY TO BE EXPERIENCING FLOODING ARE
NEAR PEA CREEK...DEEP CREEK...AND LITTLE BEAR CREEK. THIS IS IN 
THE PORTION OF THE COUNTY BETWEEN THE CHATTAHOOCHEE RIVER AND 
UNION CITY AND FAIRBURN. 

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.

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 3368 8462 3367 8459 3364 8451 3361 8451
      3353 8460 3358 8479 3361 8475 3365 8469

$$
000 
WGUS72 KFFC 010446
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1243 AM EDT FRI AUG 1 2008

GAC121-010451-
/O.EXP.KFFC.FF.W.0010.000000T0000Z-080801T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FULTON GA-
1243 AM EDT FRI AUG 1 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1245 AM EDT FOR FULTON
COUNTY...

AT 1243 AM EDT...RADAR INDICATED THAT THE STORMS HAD DISSIPATED 
AND ONLY LIGHT TO MODERATE RAIN CONTINUED ACROSS THE AREA. REPORTS
OF STREET FLOODING WERE RECEIVED EARLIER THIS EVENING...HOWEVER
NO REPORTS OF MORE SIGNFICANT AND ONGOING FLOODING HAVE BEEN
RECEIVED SINCE THEN. 

IF YOU SAW SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3368 8462 3367 8459 3364 8451 3361 8451
      3353 8460 3358 8479 3361 8475 3365 8469

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 1, 6:25 PM EDTSevere Thunderstorm WarningFFCTelfair, Wheeler50 min

Nearby

Flash Flood Warnings in Georgia, 2008Every 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.