Alert archive / Georgia / River Flood Warnings in 2012

River Flood Warning 18, NWS Atlanta, GA

December 20, 2012Forsyth County, Georgia

NWS Atlanta, GA issued this river flood warning at Dec 20, 2012, 4:10 PM EST for Forsyth County, Georgia. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2012, 4:10 PM EST (21:10 UTC)
Expired
Dec 20, 2012, 11:06 PM EST
In force
7 hr
Issued by
NWS Atlanta, GA
Flood severity
Minor

County Forsyth County, GA

The radar

The Atlanta radar (KFFC), 104 km from the middle of the area, began a volume at 21:13 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 river

Written for the forecast point Big Creek at GA 9 near Cumming (CMGG1). The gauge peaked at 6.34 ft at Dec 20, 2012, 8:00 PM EST.

actionminormoderate051012/2012/2112/22
Action stage
4 ft
Minor stage
6 ft
Moderate stage
12 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02335580, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted, in the capitals the NWS used until 2016.

076 
WGUS42 KFFC 202110
FLWFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
410 PM EST THU DEC 20 2012

...THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A FLOOD 
WARNING FOR THE FOLLOWING CREEK IN GEORGIA...

  BIG CREEK NEAR CUMMING AFFECTING FORSYTH COUNTY

.RECENT HEAVY RAINFALL HAS CAUSED SIGNIFICANT RUNOFF INTO STREAMS AND
RIVERS WHICH WILL CAUSE FLOODING IN SOME AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ALL PERSONS WITH INTERESTS ALONG THE RIVER SHOULD MONITOR THE LATEST
FORECASTS...AND BE PREPARED TO TAKE NECESSARY PRECAUTIONS TO PROTECT
LIFE AND PROPERTY.

THE LATEST STAGE DATA WAS FURNISHED IN COOPERATION WITH THE UNITED 
STATES GEOLOGICAL SURVEY.

&&

GAC117-211110-
/O.NEW.KFFC.FL.W.0018.121220T2110Z-000000T0000Z/
/CMGG1.1.ER.121220T2045Z.121220T2045Z.000000T0000Z.UU/
410 PM EST THU DEC 20 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLOOD WARNING FOR 
  THE BIG CREEK NEAR CUMMING.
* FROM THIS AFTERNOON UNTIL FURTHER NOTICE.
* AT 330 PM THURSDAY THE STAGE WAS 5.7 FEET...AND RISING. 
* FLOOD STAGE IS 6 FEET. 
* MINOR FLOODING IS FORECAST WITH A CREST THIS EVENING AROUND 6.5
  FEET.
* AT 6 FEET...FLOOD STAGE IS REACHED. MINOR FLOODING WILL EXPAND 
  INTO THE NATURAL FLOOD PLAIN OF THE CREEK UPSTREAM AND DOWNSTREAM 
  FROM THE GAGE AT ATLANTA HIGHWAY OR GEORGIA HIGHWAY 9. LARGE 
  PORTIONS OF THE SIDEWALK AND BOARDWALK OF THE BIG CREEK GREENWAY 
  WILL BEGIN TO FLOOD. THE AREAS UNDER THE GEORGIA 400 HIGHWAY AND 
  MCFARLAND ROAD WILL BE COVERED WITH AROUND ONE FOOT OF WATER. A 
  PORTION OF THE SIDEWALK UNDER MAJORS ROAD WILL BE COVERED WITH 
  AROUND TWO FEET OF WATER. 

$$
3 follow-up statements
194 
WGUS82 KFFC 202246
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
546 PM EST THU DEC 20 2012

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING CREEK IN GEORGIA...
  BIG CREEK NEAR CUMMING AFFECTING FORSYTH COUNTY 

GAC117-211246-
/O.CON.KFFC.FL.W.0018.000000T0000Z-000000T0000Z/
/CMGG1.1.ER.121220T2045Z.121220T2145Z.000000T0000Z.UU/
546 PM EST THU DEC 20 2012

THE FLOOD WARNING CONTINUES FOR
  THE BIG CREEK NEAR CUMMING.
* UNTIL FURTHER NOTICE. 
* AT 445 PM TODAY THE STAGE WAS 6 FEET...AND RISING SLOWLY.
* MINOR FLOODING IS OCCURRING AND WILL CONTINUE. THE CREEK SHOULD
  CREST NEAR 6.5 FEET THIS EVENING...THEN FALL BELOW FLOOD STAGE
  AROUND MIDNIGHT.
* FLOOD STAGE IS 6 FEET. 
* AT 6 FEET...FLOOD STAGE IS REACHED. MINOR FLOODING WILL EXPAND 
  INTO THE NATURAL FLOOD PLAIN OF THE CREEK UPSTREAM AND DOWNSTREAM 
  FROM THE GAGE AT ATLANTA HIGHWAY OR GEORGIA HIGHWAY 9. LARGE 
  PORTIONS OF THE SIDEWALK AND BOARDWALK OF THE BIG CREEK GREENWAY 
  WILL BEGIN TO FLOOD. THE AREAS UNDER THE GEORGIA 400 HIGHWAY AND 
  MCFARLAND ROAD WILL BE COVERED WITH AROUND ONE FOOT OF WATER. A 
  PORTION OF THE SIDEWALK UNDER MAJORS ROAD WILL BE COVERED WITH 
  AROUND TWO FEET OF WATER. 

$$
954 
WGUS82 KFFC 210220
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
920 PM EST THU DEC 20 2012

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN GEORGIA...
  BIG CREEK NEAR CUMMING AFFECTING FORSYTH COUNTY 


GAC117-211620-
/O.CON.KFFC.FL.W.0018.000000T0000Z-000000T0000Z/
/CMGG1.1.ER.121220T2045Z.121221T0115Z.000000T0000Z.UU/
920 PM EST THU DEC 20 2012

THE FLOOD WARNING CONTINUES FOR
  THE BIG CREEK NEAR CUMMING
* UNTIL FURTHER NOTICE. 
* AT 9PM THURSDAY THE STAGE WAS 6.3 FEET...AND FALLING.
* MINOR FLOODING IS OCCURRING AND WILL CONTINUE. THE CREEK CRESTED
  AT 6.5 FEET THIS EVENING AND IT SHOULD FALL BELOW FLOOD STAGE
  AROUND MIDNIGHT.
* FLOOD STAGE IS 6 FEET. 
* AT 6 FEET...FLOOD STAGE IS REACHED. MINOR FLOODING WILL EXPAND 
  INTO THE NATURAL FLOOD PLAIN OF THE CREEK UPSTREAM AND DOWNSTREAM 
  FROM THE GAGE AT ATLANTA HIGHWAY OR GEORGIA HIGHWAY 9. LARGE 
  PORTIONS OF THE SIDEWALK AND BOARDWALK OF THE BIG CREEK GREENWAY 
  WILL BEGIN TO FLOOD. THE AREAS UNDER THE GEORGIA 400 HIGHWAY AND 
  MCFARLAND ROAD WILL BE COVERED WITH AROUND ONE FOOT OF WATER. A 
  PORTION OF THE SIDEWALK UNDER MAJORS ROAD WILL BE COVERED WITH 
  AROUND TWO FEET OF WATER. 

$$
521 
WGUS82 KFFC 210406
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1106 PM EST THU DEC 20 2012

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
GEORGIA...
 
  BIG CREEK NEAR CUMMING AFFECTING FORSYTH COUNTY

 
GAC117-210436-
/O.CAN.KFFC.FL.W.0018.000000T0000Z-121221T0406Z/
/CMGG1.1.ER.121220T2045Z.121221T0115Z.121221T0309Z.UU/
1106 PM EST THU DEC 20 2012

THE FLOOD WARNING IS CANCELLED FOR
  THE BIG CREEK NEAR CUMMING
* AT 10 PM THIS EVENING THE STAGE WAS 5.8 FEET...AND FALLING.
* FLOOD STAGE IS 6.0 FEET. 
* AT 6.0 FEET...FLOOD STAGE IS REACHED. MINOR FLOODING WILL EXPAND 
  INTO THE NATURAL FLOOD PLAIN OF THE CREEK UPSTREAM AND DOWNSTREAM 
  FROM THE GAGE AT ATLANTA HIGHWAY OR GEORGIA HIGHWAY 9. LARGE 
  PORTIONS OF THE SIDEWALK AND BOARDWALK OF THE BIG CREEK GREENWAY 
  WILL BEGIN TO FLOOD. THE AREAS UNDER THE GEORGIA 400 HIGHWAY AND 
  MCFARLAND ROAD WILL BE COVERED WITH AROUND ONE FOOT OF WATER. A 
  PORTION OF THE SIDEWALK UNDER MAJORS ROAD WILL BE COVERED WITH 
  AROUND TWO FEET OF WATER. 
* THIS CREST COMPARES TO A PREVIOUS CREST OF 6.1 FEET ON APR 5 2011.  

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 12:55 PM ESTSpecial Weather StatementFFCHeard, Troup50 min
Dec 20, 1:07 PM ESTSpecial Weather StatementFFCHarris, Muscogee38 min
Dec 20, 1:13 PM ESTSpecial Weather StatementFFCCoweta, Meriwether77 min
Dec 20, 1:27 PM ESTSpecial Weather StatementFFCChattahoochee, Stewart63 min
Dec 20, 1:29 PM ESTSpecial Weather StatementFFCChattahoochee, Stewart61 min
Dec 20, 1:43 PM ESTSpecial Weather StatementFFCMuscogee32 min
Dec 20, 1:45 PM ESTSpecial Weather StatementFFCFayette30 min
Dec 20, 2:00 PM ESTSpecial Weather StatementFFCTalbot45 min
Dec 20, 2:01 PM ESTSpecial Weather StatementFFCPike29 min
Dec 20, 2:07 PM ESTSpecial Weather StatementFFCMarion38 min
Dec 20, 2:17 PM ESTSpecial Weather StatementFFCWebster43 min
Dec 20, 2:26 PM ESTSpecial Weather StatementFFCLamar, Pike, Upson34 min
Dec 20, 2:35 PM ESTSpecial Weather StatementFFCMacon, Schley, Sumter55 min
Dec 20, 2:43 PM ESTSpecial Weather StatementFFCCrisp, Dooly47 min
Dec 20, 2:47 PM ESTSpecial Weather StatementFFCTaylor43 min
Dec 20, 3:29 PM ESTSpecial Weather StatementFFCPulaski, Wilcox31 min
Dec 20, 3:31 PM ESTSpecial Weather StatementFFCCrisp29 min
Dec 20, 3:33 PM ESTSevere Thunderstorm WarningFFCCrisp22 min
Dec 20, 3:42 PM ESTSpecial Weather StatementFFCJones33 min
Dec 20, 4:04 PM ESTSpecial Weather StatementFFCDodge26 min

Nearby

River Flood Warnings in Georgia, 2012Every river flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.