Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 74, NWS Atlanta, GA

June 17, 2003DeKalb County, Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 17, 2003, 7:22 AM EDT for DeKalb County, Fulton County, Georgia. It was in force for 98 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 17, 2003, 7:22 AM EDT (11:22 UTC)
Expired: Jun 17, 2003, 9:00 AM EDT
In force: 98 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties DeKalb County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 57 km from the middle of the area, began a volume at 11:22 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 00:00Z, 11.4 hours before the alert went out and 54 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1038 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1507 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 37 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 171136
FFWATL
GAC089-121-181100-
BULLETIN - EAS ACTIVATION REQUESTED	
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE PEACHTREE CITY GA 
722 AM EDT TUE JUN 17 2003


THE NATIONAL WEATHER SERVICE HAS ISSUED A


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


* UNTIL 900 AM EDT

* AT 720...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  RAIN HAD TAPERED OFF ACROSS THE METRO AREA. HOWEVER...SIGNIFICANT   
  RUNOFF CONTINUED INTO PEACHTREE CREEK.
   

* FOR THE PEACHTREE CREEK NEAR ATLANTA...
   MINOR FLOODING IS OCCURING AND IS FORECAST TO CONTINUE.
   LATEST STAGE...WAS 17.0 FEET AT 7 AM TUESDAY.
   BANKFULL STAGE...IS 13 FEET.  
   FLOOD STAGE...IS 17 FEET.
   THE FORECAST...FOR THE PEACHTREE CREEK NEAR ATLANTA... 
          THE CREEK IS BEGINNING TO SLOW AND WILL CREST BY 8 AM.
          IT WILL CREST NEAR 17.1 FEET AT 8 AM TUESDAY. 
          IT WILL FALL BELOW FLOOD STAGE AT 9 AM TUESDAY. 


RESIDENTS ALONG PEACHTREE CREEK SHOULD CONTINUE TO MONITOR FORECASTS 
TODAY FOR UPDATES OR WARNINGS...ESPECIALLY WITH ADDITIONAL RAINFALL 
POSSIBLE THIS AFTERNOON.

YOU CAN REPORT SERIOUS FLOODING TO THE NATIONAL WEATHER SERVICE BY 
CALLING 7 7 0 4 8 6 1 1 3 3 AT EXTENSION 2 0 4.

LAT...LON 3394 8440 3370 8454 3369 8412 3392 8423


$$

1 follow-up statement

000 
WGUS72 KFFC 171400
FFSATL
GAC089-121-171500-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
955 AM EDT TUE JUN 17 2003

...FLASH FLOOD WARNING HAS BEEN CANCELLED FOR PEACHTREE CREEK...

THE LATEST STAGE WAS 16.1 FEET AT 9 AM EDT TUESDAY.  THE RIVER WILL 
CONTINUE A STEADY FALL THROUGH THE AFTERNOON.  

LAT...LON 3376 8452 3365 8452 3366 8421 3386 8425

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 9:47 PM EDT	Severe Thunderstorm Warning	FFC	Clayton	28 min
Jun 16, 10:24 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga	36 min
Jun 16, 11:07 PM EDT	Severe Thunderstorm Warning	FFC	Hall	23 min
Jun 16, 11:50 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Gordon	40 min
Jun 17, 2:00 AM EDT	Flash Flood Warning	FFC	Cobb, DeKalb, Fulton, Gwinnett	3 hr
Jun 17, 4:51 AM EDT	Flash Flood Warning	FFC	Fayette	114 min
Jun 17, 5:29 AM EDT	Flash Flood Warning	FFC	Gwinnett	2 hr
Jun 17, 6:47 AM EDT	Flash Flood Warning	FFC	Clayton, Fayette	2 hr

Nearby

Flash Flood Warnings in Georgia, 2003 Every flash flood warning in 2003

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.