Alert archive / Georgia / Flash Flood Warnings in 2017

Flash Flood Warning 21, NWS Atlanta, GA

June 5, 2017Chattooga County, Floyd County, Gordon County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 5, 2017, 12:26 AM EDT for Chattooga County, Floyd County, Gordon County, Georgia. It was in force for 4 hr. 5 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 5, 2017, 12:26 AM EDT (04:26 UTC)
Expired
Jun 5, 2017, 4:30 AM EDT
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Chattooga County, GA, Floyd County, GA, Gordon County, GA

The radar

The Northeast Alabama radar (KHTX), 109 km from the middle of the area, began a volume at 04:28 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 5, 1:10 AM EDTFLOOD1 W East Trion, GA1 FOOT DEEP WATER WAS REPORTED NEAR THE INTERSECTION OF 1ST STREET AND THOMAS ROAD.
Jun 5, 1:10 AM EDTFLASH FLOOD1 Ese Lyerly, GASTARLING MILL ROAD NEAR LYERLY DAM ROAD HAD MINOR STREET FLOODING AND MULTIPLE DRIVEWAYS WERE WASHED OUT.
Jun 5, 1:40 AM EDTFLASH FLOOD3 Nw Floyd Springs, GAPORTIONS OF DRY CREEK ROAD NEAR LITTLE SAND MOUNTAIN ROAD AND HAYWOOD VALLEY ROAD WERE FLOODED AND WASHED OUT. THE MAJORITY OF THE ROAD WAS LITTERED WITH TREE LIMBS... BRANCHES... AND OTHER DEBRIS. ALSO... A NEARBY CAMPGROUND WAS REPORTED FLOODED WITH DEEP WAT
Jun 5, 1:40 AM EDTFLASH FLOOD3 Nw Floyd Springs, GAPORTIONS OF DRY CREEK ROAD NEAR LITTLE SAND MOUNTAIN ROAD AND HAYWOOD VALLEY ROAD WERE FLOODED AND WASHED OUT. THE MAJORITY OF THE ROAD WAS LITTERED WITH TREE LIMBS... BRANCHES... AND OTHER DEBRIS. ALSO... A NEARBY CAMPGROUND WAS REPORTED FLOODED WITH DEEP WAT
Jun 5, 1:40 AM EDTFLASH FLOOD3 Wnw Everett Springs, GAPORTIONS OF DRY CREEK ROAD WERE FLOODED AND WASHED OUT. THE MAJORITY OF THE ROAD WAS LITTERED WITH TREE LIMBS... BRANCHES... AND OTHER DEBRIS. ALSO... A NEARBY CAMPGROUND WAS REPORTED FLOODED WITH DEEP WATER.

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, 4.4 hours before the alert went out and 142 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 00:00Z on 2017-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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, Peachtre/Fal Fld, GA at 00:00Z on 2017-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
81 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

919 
WGUS52 KFFC 050426
FFWFFC
GAC055-115-129-050830-
/O.NEW.KFFC.FF.W.0021.170605T0426Z-170605T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1226 AM EDT MON JUN 5 2017

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Northeastern Floyd County in northwestern Georgia...
  Gordon County in northwestern Georgia...
  Northeastern Chattooga County in northwestern Georgia...

* Until 430 AM EDT

* At 1225 AM EDT, Doppler radar indicated heavy rain across the
  warned area. Up to two inches of rain have already fallen. Flash
  flooding is expected to begin shortly.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3458 8536 3459 8535 3459 8506 3462 8506
      3461 8505 3462 8493 3463 8491 3462 8491
      3461 8486 3461 8475 3462 8474 3462 8472
      3461 8472 3461 8473 3460 8473 3458 8467
      3444 8468 3437 8538 3459 8539

$$
1 follow-up statement
419 
WGUS72 KFFC 050830
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
430 AM EDT MON JUN 5 2017

GAC055-115-129-050839-
/O.EXP.KFFC.FF.W.0021.000000T0000Z-170605T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Floyd GA-Gordon GA-Chattooga GA-
430 AM EDT MON JUN 5 2017

...THE FLASH FLOOD WARNING FOR NORTHEASTERN FLOYD...GORDON AND
NORTHEASTERN CHATTOOGA COUNTIES WILL EXPIRE AT 430 AM EDT...

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

LAT...LON 3458 8536 3459 8535 3459 8506 3462 8506
      3461 8505 3462 8493 3463 8491 3462 8491
      3461 8486 3461 8475 3462 8474 3462 8472
      3461 8472 3461 8473 3460 8473 3458 8467
      3444 8468 3437 8538 3459 8539

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 8:08 PM EDTSpecial Weather StatementFFCTelfair37 min
Jun 4, 8:20 PM EDTFlash Flood WarningFFCDade, Walker6 hr
Jun 4, 8:43 PM EDTSpecial Weather StatementFFCDodge32 min
Jun 4, 9:31 PM EDTSpecial Weather StatementFFCWilcox29 min
Jun 4, 9:43 PM EDTSpecial Weather StatementFFCTreutlen32 min
Jun 5, 1:36 AM EDTAreal Flood WarningFFCCatoosa, Gilmer, Murray, Walker, Whitfield4 hr
Jun 5, 3:19 AM EDTSpecial Weather StatementFFCLumpkin, White41 min
Jun 5, 3:37 AM EDTFlash Flood WatchFFCBartow, Catoosa, Chattooga, Cherokee, Dade, Dawson and 14 more31 hr
Jun 5, 10:10 AM EDTRiver Flood WarningFFCChattooga28 hr
Jun 5, 1:58 PM EDTRiver Flood WarningFFCWhitfield52 hr
Jun 5, 4:22 PM EDTSpecial Weather StatementFFCDooly, Schley, Stewart, Sumter, Webster38 min
Jun 5, 4:25 PM EDTSpecial Weather StatementFFCWheeler35 min

Nearby

Flash Flood Warnings in Georgia, 2017Every flash flood warning in 2017

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.