Alert archive / Georgia / Flash Flood Warnings in 2022

Flash Flood Warning 13, NWS Atlanta, GA

July 5, 2022Cherokee County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 5, 2022, 8:46 PM EDT for Cherokee County, Georgia. It was in force for 3 hr. 1 report 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 5, 2022, 8:46 PM EDT (00:46 UTC)
Expired: Jul 5, 2022, 11:36 PM EDT
In force: 3 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 97 km from the middle of the area, began a volume at 00:47 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

Time	Report	Where	Remark
Jul 5, 8:50 PM EDT	FLOOD	1 Nne Canton, GA	EM REPORTS ROADS CLOSED GOING INTO HERITAGE PARK DUE TO FLOODING. CREEK FLOWING INTO ETOWAH RIVER HAS OVERTOPPED ITS BANKS AND PARKING LOTS ARE FLOODED. DEPTH OF WATER UNKNOWN AT THIS TIME.

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.8 hours before the alert went out and 96 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: 1887 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1228 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: -28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

487 
WGUS52 KFFC 060046
FFWFFC
GAC057-060645-
/O.NEW.KFFC.FF.W.0013.220706T0046Z-220706T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
846 PM EDT Tue Jul 5 2022

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Central Cherokee County in north central Georgia...

* Until 245 AM EDT.

* At 846 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 inches of 
  rain have fallen. Additional rainfall amounts up to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Canton, Holly Springs and Buffington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3427 8448 3428 8444 3426 8440 3422 8441
      3418 8446 3418 8451 3420 8453 3425 8453

FLASH FLOOD...RADAR INDICATED

$$

DJN

1 follow-up statement

123 
WGUS72 KFFC 060336
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
1136 PM EDT Tue Jul 5 2022

GAC057-060346-
/O.CAN.KFFC.FF.W.0013.000000T0000Z-220706T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cherokee GA-
1136 PM EDT Tue Jul 5 2022

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL CHEROKEE COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3427 8448 3428 8444 3426 8440 3422 8441
      3418 8446 3418 8451 3420 8453 3425 8453

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 8:06 PM EDT	Special Weather Statement	FFC	Cherokee	24 min
Jul 5, 8:31 PM EDT	Special Weather Statement	FFC	Cherokee	29 min
Jul 5, 8:32 PM EDT	Special Weather Statement	FFC	Forsyth	28 min
Jul 5, 8:52 PM EDT	Special Weather Statement	FFC	Dooly	38 min
Jul 5, 8:55 PM EDT	Special Weather Statement	FFC	Taylor	35 min
Jul 5, 9:15 PM EDT	Special Weather Statement	FFC	Macon	30 min
Jul 5, 9:31 PM EDT	Special Weather Statement	FFC	Newton	29 min
Jul 5, 9:33 PM EDT	Special Weather Statement	FFC	Taylor	27 min
Jul 5, 9:44 PM EDT	Special Weather Statement	FFC	Fannin	31 min
Jul 5, 10:26 PM EDT	Special Weather Statement	FFC	Webster	34 min
Jul 5, 10:44 PM EDT	Special Weather Statement	FFC	Newton	31 min
Jul 5, 11:24 PM EDT	Special Weather Statement	FFC	Gwinnett	36 min
Jul 6, 3:46 AM EDT	Heat Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 84 more	16 hr
Jul 6, 1:26 PM EDT	Special Weather Statement	FFC	Wilkinson	34 min
Jul 6, 1:43 PM EDT	Special Weather Statement	FFC	Jones	32 min
Jul 6, 1:45 PM EDT	Special Weather Statement	FFC	Twiggs	30 min
Jul 6, 1:48 PM EDT	Special Weather Statement	FFC	Newton	42 min
Jul 6, 2:06 PM EDT	Special Weather Statement	FFC	Twiggs	24 min
Jul 6, 2:12 PM EDT	Special Weather Statement	FFC	Baldwin	33 min
Jul 6, 2:18 PM EDT	Special Weather Statement	FFC	Twiggs	27 min
Jul 6, 2:24 PM EDT	Special Weather Statement	FFC	Bleckley	36 min
Jul 6, 3:37 PM EDT	Special Weather Statement	FFC	Talbot	23 min
Jul 6, 3:38 PM EDT	Special Weather Statement	FFC	Dodge	37 min
Jul 6, 3:43 PM EDT	Special Weather Statement	FFC	Warren	32 min
Jul 6, 4:38 PM EDT	Special Weather Statement	FFC	Telfair	37 min
Jul 6, 5:03 PM EDT	Special Weather Statement	FFC	Wilkes	27 min
Jul 6, 5:29 PM EDT	Special Weather Statement	FFC	Whitfield	31 min
Jul 6, 6:50 PM EDT	Special Weather Statement	FFC	Catoosa	25 min
Jul 6, 7:00 PM EDT	Special Weather Statement	FFC	Towns	30 min
Jul 6, 7:15 PM EDT	Special Weather Statement	FFC	Catoosa	30 min

Nearby

Flash Flood Warnings in Georgia, 2022 Every flash flood warning in 2022

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.