Alert archive / Georgia / Flash Flood Warnings in 2019

Flash Flood Warning 22, NWS Atlanta, GA

July 5, 2019Newton County, Rockdale County, Walton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 5, 2019, 10:52 PM EDT for Newton County, Rockdale County, Walton 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
Jul 5, 2019, 10:52 PM EDT (02:52 UTC)
Expired
Jul 6, 2019, 4:45 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Newton County, GA, Rockdale County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 84 km from the middle of the area, began a volume at 02:55 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
Jul 5, 11:10 PM EDTFLASH FLOOD1 Nnw Walnut Grove, GATHE 911 CENTER RECEIVED REPORTS OF WATER OVER THE ROAD, INCLUDING AT THE INTERSECTION OF PARK STREET AND GREENHILL WAY AND GUTHRIE CEMETERY ROAD AND OLD HIGHWAY 138.
Jul 5, 11:15 PM EDTFLASH FLOOD2 Wnw Between, GATHE 911 CENTER RELAYED A REPORT OF WATER OVER A BRIDGE ON LAKE EDMUND ROAD, AT THE UPPER END OF RAYS LAKE.

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 2.9 hours before the alert went out and 283 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, Birmingham, AL at 00:00Z on 2019-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 40 joules per kilogram.LCLLFCEL10008507005003002001001 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, Birmingham, AL at 00:00Z on 2019-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939Sfc1 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
40 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
2125 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

725 
WGUS52 KFFC 060252
FFWFFC
GAC217-247-297-060845-
/O.NEW.KFFC.FF.W.0022.190706T0252Z-190706T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1052 PM EDT Fri Jul 5 2019

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Northeastern Rockdale County in north central Georgia...
  Western Walton County in north central Georgia...
  Northeastern Newton County in north central Georgia...

* Until 445 AM EDT.

* At 1051 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to two and a half inches of 
  rain have already fallen. Flash flooding is expected to begin 
  shortly.

* Some locations that will experience flooding include...
  Conyers, Covington, Loganville, Social Circle, Oxford, Walnut
  Grove, Between, Jersey, Georgia International Horse Park, Bold
  Springs, Windsor, Youth, Big Haynes Creek Park, Brick Store and Gum
  Creek.

Additional rainfall amounts of an inch to inch and a half are 
possible in the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Please report flooding to your local law enforcement agency when you
can do so safely.

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.

&&

LAT...LON 3392 8378 3360 8369 3360 8391 3379 8398
      3393 8380

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 8:11 PM EDTSevere Thunderstorm WarningFFCMonroe34 min
Jul 5, 8:16 PM EDTSpecial Weather StatementFFCWheeler29 min
Jul 5, 8:27 PM EDTSpecial Weather StatementFFCPeach33 min
Jul 5, 8:30 PM EDTSpecial Weather StatementFFCGreene30 min
Jul 5, 8:32 PM EDTSpecial Weather StatementFFCFayette28 min
Jul 5, 8:38 PM EDTSpecial Weather StatementFFCWhite37 min
Jul 5, 8:44 PM EDTSpecial Weather StatementFFCMonroe31 min
Jul 5, 8:59 PM EDTSpecial Weather StatementFFCGilmer31 min
Jul 5, 9:01 PM EDTSpecial Weather StatementFFCJasper29 min
Jul 5, 9:05 PM EDTSpecial Weather StatementFFCFannin25 min
Jul 5, 9:07 PM EDTSpecial Weather StatementFFCJones23 min
Jul 5, 9:22 PM EDTSpecial Weather StatementFFCCrisp23 min
Jul 5, 9:34 PM EDTSpecial Weather StatementFFCBaldwin, Jasper, Jones26 min
Jul 5, 9:46 PM EDTSpecial Weather StatementFFCCrisp29 min
Jul 5, 9:47 PM EDTSpecial Weather StatementFFCBibb28 min
Jul 5, 9:53 PM EDTSpecial Weather StatementFFCWalton22 min
Jul 5, 9:59 PM EDTSpecial Weather StatementFFCPutnam31 min
Jul 5, 10:00 PM EDTSpecial Weather StatementFFCBaldwin30 min
Jul 5, 10:01 PM EDTSpecial Weather StatementFFCJasper29 min
Jul 5, 10:22 PM EDTSpecial Weather StatementFFCWalton38 min
Jul 5, 10:35 PM EDTSpecial Weather StatementFFCWilcox25 min
Jul 5, 11:19 PM EDTSpecial Weather StatementFFCBaldwin56 min
Jul 6, 5:52 PM EDTSpecial Weather StatementFFCTelfair23 min
Jul 6, 6:14 PM EDTSpecial Weather StatementFFCDodge31 min
Jul 6, 6:44 PM EDTSpecial Weather StatementFFCDodge31 min
Jul 6, 7:00 PM EDTSpecial Weather StatementFFCBleckley30 min
Jul 6, 7:52 PM EDTSpecial Weather StatementFFCHouston23 min
Jul 6, 7:57 PM EDTSpecial Weather StatementFFCWilkinson33 min

Nearby

Flash Flood Warnings in Georgia, 2019Every flash flood warning in 2019

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.