Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 16, NWS Tallahassee, FL

July 7, 20215 counties in Georgia

NWS Tallahassee, FL issued this flash flood warning at Jul 7, 2021, 2:59 PM EDT for 5 counties in 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 7, 2021, 2:59 PM EDT (18:59 UTC)
Expired: Jul 7, 2021, 6:17 PM EDT
In force: 3 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Berrien County, GA, Brooks County, GA, Cook County, GA, Lanier County, GA, Lowndes County, GA

The radar

The Moody AFB radar (KVAX), 17 km from the middle of the area, began a volume at 18:57 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 7, 3:02 PM EDT	FLASH FLOOD	3 Se Valdosta, GA	REPORT OF WATER FLOODING SAN BERNADINO WAY.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.0 hours before the alert went out and 121 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: 457 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 745 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

916 
WGUS52 KTAE 071859
FFWTAE
GAC019-027-075-173-185-072330-
/O.NEW.KTAE.FF.W.0016.210707T1859Z-210707T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
259 PM EDT Wed Jul 7 2021

The National Weather Service in Tallahassee has issued a

* Flash Flood Warning for...
  Southeastern Berrien County in south central Georgia...
  Northeastern Brooks County in south central Georgia...
  Southeastern Cook County in south central Georgia...
  Lanier County in south central Georgia...
  Northern Lowndes County in south central Georgia...

* Until 730 PM EDT.

* At 259 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 3 inches of 
  rain have fallen in the last 1 Hour. Additional rainfall amounts 
  of 1 to 3 inches 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...
  Valdosta, Lakeland, Adel, Hahira, Sparks, Ray City, Moody Air 
  Force Base, I-75 At Exit 16, Remerton, Meigs, Cecil, Barretts, New 
  Lois, Allenville, Teeterville, I-75 At Exit 29, I-75 At Exit 22, 
  Hansell, Naylor and Courthouse.

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.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

LAT...LON 3113 8347 3118 8346 3115 8297 3088 8297
      3086 8299 3086 8301 3085 8301 3085 8302
      3085 8309 3083 8309 3083 8310 3080 8310
      3080 8313 3079 8314 3082 8336 3081 8343
      3083 8348

FLASH FLOOD...RADAR INDICATED

$$

EB

2 follow-up statements

629 
WGUS72 KTAE 071951
FFSTAE

Flash Flood Statement
National Weather Service Tallahassee FL
351 PM EDT Wed Jul 7 2021

GAC019-027-075-173-185-072330-
/O.CON.KTAE.FF.W.0016.000000T0000Z-210707T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berrien GA-Brooks GA-Cook GA-Lanier GA-Lowndes GA-
351 PM EDT Wed Jul 7 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT THIS 
EVENING FOR SOUTHEASTERN BERRIEN, NORTHEASTERN BROOKS, SOUTHEASTERN 
COOK, LANIER AND NORTHERN LOWNDES COUNTIES...

At 351 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1.5 and 3 inches of rain have 
fallen in the last 1 Hour. Additional rainfall amounts of 1 to 3 
inches are possible in the warned area. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Valdosta, Lakeland, Adel, Hahira, Sparks, Ray City, Moody Air 
  Force Base, I-75 At Exit 16, Remerton, Meigs, Cecil, Barretts, New 
  Lois, Allenville, Teeterville, I-75 At Exit 29, I-75 At Exit 22, 
  Hansell, Naylor and Courthouse.

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.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

LAT...LON 3113 8347 3118 8346 3115 8297 3088 8297
      3086 8299 3086 8301 3085 8301 3085 8302
      3085 8309 3083 8309 3083 8310 3080 8310
      3080 8313 3079 8314 3082 8336 3081 8343
      3083 8348

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

EB

806 
WGUS72 KTAE 072217 RRA
FFSTAE

Flash Flood Statement
National Weather Service Tallahassee FL
617 PM EDT Wed Jul 7 2021

GAC019-027-075-173-185-072227-
/O.CAN.KTAE.FF.W.0016.000000T0000Z-210707T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berrien GA-Brooks GA-Cook GA-Lanier GA-Lowndes GA-
617 PM EDT Wed Jul 7 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN BERRIEN, 
NORTHEASTERN BROOKS, SOUTHEASTERN COOK, LANIER AND NORTHERN LOWNDES 
COUNTIES...

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

LAT...LON 3113 8347 3118 8346 3115 8297 3088 8297
      3086 8299 3086 8301 3085 8301 3085 8302
      3085 8309 3083 8309 3083 8310 3080 8310
      3080 8313 3079 8314 3082 8336 3081 8343
      3083 8348

$$

EB

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 9:36 AM EDT	Special Weather Statement	TAE	Grady, Thomas	54 min
Jul 7, 10:40 AM EDT	Special Weather Statement	TAE	Berrien, Colquitt, Cook, Tift, Worth	80 min
Jul 7, 11:27 AM EDT	Special Weather Statement	TAE	Decatur, Seminole	63 min
Jul 7, 12:19 PM EDT	Wind Advisory	TAE	Ben Hill, Berrien, Colquitt, Cook, Irwin, Thomas and 1 more	14 hr
Jul 7, 1:01 PM EDT	Special Weather Statement	TAE	Lee, Turner, Worth	59 min
Jul 7, 1:17 PM EDT	Special Weather Statement	TAE	Calhoun, Clay, Early, Quitman	88 min
Jul 7, 1:43 PM EDT	Flash Flood Warning	TAE	Brooks, Lowndes	5 hr
Jul 7, 6:19 PM EDT	Areal Flood Warning	TAE	Berrien, Brooks, Cook, Lanier, Lowndes	6 hr

Nearby

Flash Flood Warnings in Georgia, 2021 Every flash flood warning in 2021

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.