River Flood Warning 170, NWS Atlanta, GA

Issued

Sep 20, 2021, 2:50 PM EDT (18:50 UTC)

In effect from

Sep 20, 2021, 2:56 PM EDT

Expired

Sep 20, 2021, 5:58 PM EDT

In force

3 hr

Issued by

NWS Atlanta, GA

Area

Storm-based polygon

Flood severity

Minor

County Gwinnett County, GA

The Atlanta radar (KFFC), 77 km from the middle of the area, began a volume at 18:51 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.

Written for the forecast point Sweetwater Creek (E ATL) at Club Drive near Lilburn (STWG1).

Action stage

9 ft

Minor stage

11 ft

Moderate stage

15 ft

Major stage

19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02205865, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

165 
WGUS42 KFFC 201850
FLWFFC

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Peachtree City GA
250 PM EDT Mon Sep 20 2021

...The National Weather Service in Peachtree City GA has issued a 
Flood Warning for the following rivers in Georgia...

  Sweetwater Creek near Lilburn affecting Gwinnett County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.

&&


GAC135-210400-
/O.NEW.KFFC.FL.W.0170.210920T1856Z-210921T0400Z/
/STWG1.1.ER.210920T1856Z.210920T2000Z.210920T2013Z.UU/
250 PM EDT Mon Sep 20 2021

The National Weather Service in Peachtree City has issued a

* Flood Warning for
  the Sweetwater Creek near Lilburn.
* Until just after midnight tonight.
* At 2:15 PM EDT Monday the stage was 9.9 feet.
* Flood stage is 11 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  afternoon to a crest of 11.2 feet late this afternoon. It will 
  then fall below flood stage this evening.
* Impact...At 11 feet, Flood stage is reached. Minor flooding will 
  occur in portions of the Northwood Country Club Golf Course 
  upstream from the gage on Club Drive...and in the woodland areas 
  downstream from the gage and for the next four miles until the 
  creek merges with the Yellow River. An old concrete golf cart 
  bridge around 300 feet downstream from the gage will begin to 
  flood.


&&

LAT...LON 3398 8414 3398 8407 3391 8406 3389 8408
      3389 8412

$$

504 
WGUS82 KFFC 202158
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
558 PM EDT Mon Sep 20 2021

...The Flood Warning is cancelled for the following rivers in 
Georgia...

  Sweetwater Creek near Lilburn affecting Gwinnett County.

GAC135-202300-
/O.CAN.KFFC.FL.W.0170.000000T0000Z-210920T2158Z/
/STWG1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.UU/
558 PM EDT Mon Sep 20 2021

...The Flood Warning for the Sweetwater Creek near Lilburn has been 
cancelled...

The Flood Warning is cancelled for
  the Sweetwater Creek near Lilburn.
* At 5:15 PM EDT Monday the stage was 10.2 feet.
* Flood stage is 11 feet.
* Forecast...The river is expected to continue to fall through this 
  evening.


&&

LAT...LON 3398 8414 3398 8407 3391 8406 3389 8408
      3389 8412

$$

River Flood Warnings in Georgia, 2021Every river flood warning in 2021

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.