Alert archive / Georgia / Flash Flood Warnings in 2020

Flash Flood Warning 25, NWS Atlanta, GA

June 12, 2020Wilcox County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 12, 2020, 7:10 PM EDT for Wilcox County, Georgia. It was in force for 6 hr. 2 reports 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
Jun 12, 2020, 7:10 PM EDT (23:10 UTC)
Expired
Jun 13, 2020, 1:15 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

County Wilcox County, GA

The radar

The Robins AFB radar (KJGX), 80 km from the middle of the area, began a volume at 23:08 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

TimeReportWhereRemark
Jun 12, 7:15 PM EDTFLASH FLOODRochelle, GAGDOT REPORTS THE INTERSECTION NEAR SR 280 AND SR 112 IS NOT PASSABLE DUE TO FLOODING.
Jun 12, 7:15 PM EDTFLASH FLOODRochelle, GAEMERGENCY MANAGER REPORTED A CAR UNDERWATER NEAR ROCHELLE BAPTIST CHURCH.

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 12:00Z, 11.2 hours before the alert went out and 189 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2020-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2020-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

703 
WGUS52 KFFC 122310
FFWFFC
GAC315-130515-
/O.NEW.KFFC.FF.W.0025.200612T2310Z-200613T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
710 PM EDT Fri Jun 12 2020

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  South Central Wilcox County in central Georgia...

* Until 115 AM EDT Saturday.

* At 710 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Rochelle and Antioch Church.

LAT...LON 3198 8350 3200 8342 3200 8338 3200 8334
      3199 8333 3197 8332 3196 8332 3195 8332
      3194 8332 3191 8333 3189 8335 3188 8345
      3192 8348

FLASH FLOOD...RADAR INDICATED

$$
2 follow-up statements
585 
WGUS72 KFFC 122332
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
732 PM EDT Fri Jun 12 2020

GAC315-130515-
/O.CON.KFFC.FF.W.0025.000000T0000Z-200613T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wilcox GA-
732 PM EDT Fri Jun 12 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM EDT SATURDAY 
FOR SOUTH CENTRAL WILCOX COUNTY...

At 732 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 4 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Doppler radar.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Rochelle and Antioch Church.

This includes the following streams and drainages...
  Mill Creek, House Creek, Reynolds Creek, Bay Branch, Clements 
  Creek, Sagegrass Creek, Folsom Creek and Haw Pond Creek.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, country roads, farmland, and other low lying 
spots.

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

If you see significant flooding call the National Weather Service 
toll free at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at 
NWSATLANTA.

&&

LAT...LON 3198 8350 3200 8342 3200 8338 3200 8334
      3199 8333 3197 8332 3196 8332 3195 8332
      3194 8332 3191 8333 3189 8335 3188 8345
      3192 8348

FLASH FLOOD...RADAR INDICATED

$$
172 
WGUS72 KFFC 130149
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
949 PM EDT Fri Jun 12 2020

GAC315-130515-
/O.CON.KFFC.FF.W.0025.000000T0000Z-200613T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wilcox GA-
949 PM EDT Fri Jun 12 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM EDT SATURDAY 
FOR SOUTH CENTRAL WILCOX COUNTY...

At 949 PM EDT, Emergency Management and the Department of 
Transportation reported flooding in and around the Rochelle area. 
Between 2.5 and 5.5 inches of rain fell earlier this evening in the 
warned area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Rochelle and Antioch Church.

This includes the following streams and drainages...
  Mill Creek, House Creek, Reynolds Creek, Bay Branch, Clements 
  Creek, Sagegrass Creek, Folsom Creek and Haw Pond Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, country roads, farmland, and other low lying 
spots.

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

If you see significant flooding call the National Weather Service 
toll free at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at 
NWSATLANTA.

&&

LAT...LON 3198 8350 3200 8342 3200 8334 3199 8333
      3197 8332 3194 8332 3191 8333 3189 8335
      3188 8345 3192 8348

FLASH FLOOD...OBSERVED

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 12:54 PM EDTSpecial Weather StatementFFCMontgomery, Toombs, Wheeler36 min
Jun 12, 1:27 PM EDTSpecial Weather StatementFFCToombs48 min
Jun 12, 2:05 PM EDTSpecial Weather StatementFFCTelfair, Wheeler40 min
Jun 12, 2:42 PM EDTSpecial Weather StatementFFCTelfair48 min
Jun 12, 6:13 PM EDTSpecial Weather StatementFFCWilcox47 min
Jun 12, 6:36 PM EDTSevere Thunderstorm WarningFFCWilcox39 min
Jun 12, 7:12 PM EDTSevere Thunderstorm WarningFFCWilcox33 min
Jun 12, 7:39 PM EDTSpecial Weather StatementFFCCrisp51 min
Jun 12, 7:44 PM EDTSpecial Weather StatementFFCWilcox46 min

Nearby

Flash Flood Warnings in Georgia, 2020Every flash flood warning in 2020

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.