Alert archive / Georgia / Flash Flood Warnings in 2021

Flash Flood Warning 2, NWS Atlanta, GA

March 25, 20215 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Mar 25, 2021, 11:46 AM EDT for 5 counties in Georgia. It was in force for 10 hr. 27 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
Mar 25, 2021, 11:46 AM EDT (15:46 UTC)
Expired
Mar 25, 2021, 10:00 PM EDT
In force
10 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Catoosa County, GA, Chattooga County, GA, Dade County, GA, Walker County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 79 km from the middle of the area, began a volume at 15:45 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
Mar 25, 11:47 AM EDTFLASH FLOOD3 E Rocky Face, GAWATER OVER THE ROAD NEAR THE INTERSECTION OF REED ROAD AND NEELY ROAD NW.
Mar 25, 2:09 PM EDTFLASH FLOOD1 Sw Berryton, GADOVERS CUT RD REPORTED UNDERWATER NEAR THE FAITH TEMPLE.
Mar 25, 2:20 PM EDTFLASH FLOOD3 E Summerville, GAWATER ON THE ROAD AT THE INTERSECTION OF BUTLER DAIRY RD AND SPRAYBERRY FARMS
Mar 25, 2:46 PM EDTFLASH FLOOD1 Nnw Chattoogaville, GASARDIS CHURCH RD FLOODED NEAR SPRING BRANCH
Mar 25, 4:35 PM EDTFLASH FLOOD1 Nne Chattoogaville, GAWATER REPORTED RUSHING ACROSS THE ROAD AT THE 600 BLOCK OF RADLAND RD.
Mar 25, 5:01 PM EDTFLASH FLOOD1 Ese Lyerly, GALYERLY DAM REPORTED REACHING 10 FT FLOOD LEVELS.
Mar 25, 5:05 PM EDTFLASH FLOOD2 Nne Trion, GASTANDING WATER ON THE ROADWAY AT THE INTERSECTION OF OLD HWY 27 AND WEST HALLS VALLEY RD
Mar 25, 6:23 PM EDTFLASH FLOOD1 Ese Rocky Face, GAWATER OVER THE ROAD NEAR THE INTERSECTION OF N TIBBS ROAD AND CHATTANOOGA ROAD.
Mar 25, 6:49 PM EDTFLASH FLOOD3 E Summerville, GAMOVING WATER AND DEBRIS IN THE ROADWAY AT 1200 BLOCK OF BUTLER DAIRY RD.
Mar 25, 6:57 PM EDTFLASH FLOOD3 Sse Menlo, GAWATER MADE THE ROADWAY IMPASSABLE AT THE 1100 BLOCK OF YARBROUGH RD.
Mar 25, 6:59 PM EDTFLASH FLOOD1 S Trion, GASOUTHBOUND LANE OF HWY 27 WAS REPORTED NEAR THE 14100 BLOCK.
Mar 25, 6:59 PM EDTFLASH FLOOD2 Ene Trion, GAWATER REPORTED OVER ROADWAY IN THE AREA NEAR RONNI'S GROCERY ON MOUNTAIN VIEW RD AND APPROACHING THE DOORSTEP OF LOCAL HOMES.
Mar 25, 7:03 PM EDTFLASH FLOOD2 Se James H. Floyd Sta, GAWATER ACROSS THE ROADWAY AT THE 500 BLOCK OF JENKINS GAP RD.
Mar 25, 7:04 PM EDTFLASH FLOOD1 Nne Summerville, GAWATER REPORTED OVER MAPLEWOOD AT SUMMERVILLE BAPTIST RD
Mar 25, 7:07 PM EDTFLASH FLOOD1 Ne Trion, GAWATER OVER THE ROAD ALONG OLD HIGHWAY 27 JUST OUTSIDE OF THE TRION CITY LIMITS.
Mar 25, 7:09 PM EDTFLASH FLOOD1 Ene Trion, GAINTERSECTION OF MOUNTAIN VIEW ROAD AND WILLIAMS CEMETARY ROAD IS FLOODED.
Mar 25, 7:23 PM EDTFLASH FLOOD1 S Chattoogaville, GAPRICE BRIDGE ROAD IS FLOODED.
Mar 25, 7:36 PM EDTFLASH FLOOD2 Nnw Lyerly, GATHE INTERSECTION OF SMALLEN ROAD AT SMITH RAIL ROAD IS FLOODED.
Mar 25, 7:41 PM EDTFLASH FLOOD3 E Summerville, GATHE INTERSECTION OF BUTLER DIARY ROAD AND MADDOX LAKE ROAD IS FLOODED. BUTLER DAIRY ROAD IS CLOSED DUE TO HIGH WATER.
Mar 25, 7:49 PM EDTFLASH FLOOD2 Ssw Menlo, GAOAK HILL ALPINE ROAD CLOSED DUE TO HIGH WATER.
Mar 25, 7:55 PM EDTFLASH FLOOD2 Ssw Trion, GAFOUR FEET OF WATER OVER MEMORIAL DRIVE AT THE CURVE.
Mar 25, 8:12 PM EDTFLASH FLOODChattoogaville, GASARDIS CHURCH ROAD HAS BEEN CLOSED DUE TO HIGH WATER.
Mar 25, 8:28 PM EDTFLASH FLOOD1 Se Summerville, GAWILDLIFE LAKE ROAD AT HIGHWAY 27 IS UNDERWATER.
Mar 25, 8:43 PM EDTFLASH FLOOD2 Nw Summerville, GAHAIR LAKE ROAD IS IMPASSABLE DUE TO HIGH WATER.
Mar 25, 8:54 PM EDTFLASH FLOOD2 Sse Lyerly, GATALIAFERRO ROAD CLOSED DUE TO HIGH WATER. WATER ALSO COVERING THE BRIDGE.
Mar 25, 9:01 PM EDTFLASH FLOOD2 Wnw Trion, GATATE ROAD IS WASHED OUT.
Mar 25, 9:05 PM EDTFLASH FLOOD2 Ne Summerville, GAWATER OVER THE SOUTHBOUND LANE OF HIGHWAY 27 AT WOODHAVEN DRIVE.

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, 3.8 hours before the alert went out and 165 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 2021-03-25Temperature 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 2021-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 397 square meters per square second.1939587897Sfc1 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
1602 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
397 m²/s²
0-3 km storm-relative helicity
647 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

071 
WGUS52 KFFC 251546
FFWFFC
GAC047-055-083-295-313-252145-
/O.NEW.KFFC.FF.W.0002.210325T1546Z-210325T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
1146 AM EDT Thu Mar 25 2021

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Catoosa County in northwestern Georgia...
  Chattooga County in northwestern Georgia...
  Dade County in northwestern Georgia...
  Walker County in northwestern Georgia...
  Central Whitfield County in northwestern Georgia...

* Until 545 PM EDT.

* At 1146 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2 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...
  Dalton, Lafayette, Summerville, Ringgold, Trenton, Fort 
  Oglethorpe, Rossville, Chickamauga, Trion, Varnell, Lookout 
  Mountain, Tunnel Hill, Cohutta, Lyerly, Menlo, Linwood, Noble, 
  Naomi, Rock Spring and Cooper Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3497 8560 3499 8488 3459 8508 3459 8511
      3456 8512 3429 8546

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1.5 INCHES IN 3 HOURS 

$$
3 follow-up statements
340 
WGUS52 KFFC 251931
FFWFFC
GAC047-055-083-295-313-252345-
/O.EXT.KFFC.FF.W.0002.000000T0000Z-210325T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
331 PM EDT Thu Mar 25 2021

The National Weather Service in Peachtree City has extended the

* Flash Flood Warning for...
  Catoosa County in northwestern Georgia...
  Chattooga County in northwestern Georgia...
  Dade County in northwestern Georgia...
  Walker County in northwestern Georgia...
  Central Whitfield County in northwestern Georgia...

* Until 745 PM EDT.

* At 331 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain have moved over the warned area. Between 1.5 and 3 
  inches of rain have fallen since late this morning. Flash flooding 
  continues to be expected as additional thunderstorms move over the 
  area.

  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...
  Dalton, Lafayette, Summerville, Ringgold, Trenton, Fort 
  Oglethorpe, Rossville, Chickamauga, Trion, Varnell, Lookout 
  Mountain, Tunnel Hill, Cohutta, Lyerly, Menlo, Linwood, Noble, 
  Naomi, Rock Spring and Cooper Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3497 8560 3499 8488 3459 8508 3459 8511
      3456 8512 3429 8546

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1.5 INCHES IN 3 HOURS 

$$
277 
WGUS72 KFFC 252208
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
608 PM EDT Thu Mar 25 2021

GAC047-055-083-295-313-252345-
/O.CON.KFFC.FF.W.0002.000000T0000Z-210325T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Catoosa GA-Chattooga GA-Dade GA-Walker GA-Whitfield GA-
608 PM EDT Thu Mar 25 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM EDT THIS 
EVENING FOR CATOOSA, CHATTOOGA, DADE, WALKER AND CENTRAL WHITFIELD 
COUNTIES...

At 608 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1 and 3 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...
  Dalton, Lafayette, Summerville, Ringgold, Trenton, Fort 
  Oglethorpe, Rossville, Chickamauga, Trion, Varnell, Lookout 
  Mountain, Tunnel Hill, Cohutta, Lyerly, Menlo, Linwood, Noble, 
  Naomi, Rock Spring and Cooper Heights.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3497 8560 3499 8488 3459 8508 3459 8511
      3456 8512 3429 8546

FLASH FLOOD...RADAR INDICATED

$$
323 
WGUS52 KFFC 252308
FFWFFC
GAC047-055-083-295-313-260200-
/O.EXT.KFFC.FF.W.0002.000000T0000Z-210326T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
708 PM EDT Thu Mar 25 2021

The National Weather Service in Peachtree City has extended the

* Flash Flood Warning for...
  Catoosa County in northwestern Georgia...
  Chattooga County in northwestern Georgia...
  Dade County in northwestern Georgia...
  Walker County in northwestern Georgia...
  Central Whitfield County in northwestern Georgia...

* Until 1000 PM EDT.

* At 708 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 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...
  Dalton, Lafayette, Summerville, Ringgold, Trenton, Fort 
  Oglethorpe, Rossville, Chickamauga, Trion, Varnell, Lookout 
  Mountain, Tunnel Hill, Cohutta, Lyerly, Menlo, Linwood, Noble, 
  Naomi, Rock Spring and Cooper Heights.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3497 8560 3499 8488 3459 8508 3459 8511
      3456 8512 3429 8546

FLASH FLOOD...RADAR INDICATED

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 6:01 AM EDTSpecial Weather StatementFFCHarris14 min
Mar 25, 6:23 AM EDTSpecial Weather StatementFFCHarris37 min
Mar 25, 6:53 AM EDTSpecial Weather StatementFFCMeriwether, Pike, Troup37 min
Mar 25, 10:37 AM EDTSevere Thunderstorm WarningFFCCatoosa, Chattooga, Dade, Walker, Whitfield53 min
Mar 25, 11:19 AM EDTSpecial Weather StatementFFCGordon, Murray, Whitfield41 min
Mar 25, 12:00 PM EDTSpecial Weather StatementFFCFannin, Gilmer, Murray30 min
Mar 25, 12:02 PM EDTSpecial Weather StatementFFCFloyd, Polk28 min
Mar 25, 12:17 PM EDTRiver Flood WarningFFCDade31 hr
Mar 25, 12:21 PM EDTSevere Thunderstorm WarningFFCFloyd, Haralson, Polk24 min
Mar 25, 12:41 PM EDTSevere Thunderstorm WarningFFCBartow, Cobb, Floyd, Paulding, Polk49 min
Mar 25, 1:04 PM EDTSevere Thunderstorm WarningFFCCherokee, Cobb, Forsyth, Fulton26 min
Mar 25, 1:09 PM EDTSpecial Weather StatementFFCTowns, Union36 min
Mar 25, 1:30 PM EDTSevere Thunderstorm WarningFFCBarrow, Cherokee, Cobb, Forsyth, Fulton, Gwinnett and 2 more45 min
Mar 25, 2:03 PM EDTSpecial Weather StatementFFCChattooga, Floyd, Gordon, Polk42 min
Mar 25, 2:13 PM EDTSpecial Weather StatementFFCBanks, Hall47 min
Mar 25, 2:42 PM EDTRiver Flood WarningFFCCatoosa43 hr
Mar 25, 2:48 PM EDTSpecial Weather StatementFFCBartow, Polk27 min
Mar 25, 2:50 PM EDTTornado WarningFFCBanks, Jackson, Madison11 min
Mar 25, 3:07 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Cobb, Paulding, Polk38 min
Mar 25, 3:28 PM EDTFlash Flood WarningFFCBartow, Chattooga, Floyd, Gordon, Polk13 hr
Mar 25, 3:38 PM EDTSpecial Weather StatementFFCCherokee, Forsyth37 min
Mar 25, 4:18 PM EDTTornado Warning Tornado observedFFCFloyd, Polk57 min
Mar 25, 4:49 PM EDTRiver Flood WarningFFCChattooga35 hr
Mar 25, 4:59 PM EDTTornado WarningFFCBartow, Floyd46 min
Mar 25, 5:34 PM EDTFlash Flood WarningFFCFannin, Gilmer, Murray, Towns, Union, Whitfield10 hr
Mar 25, 5:37 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Pickens38 min
Mar 25, 6:41 PM EDTSpecial Weather StatementFFCWhitfield34 min
Mar 25, 7:25 PM EDTSpecial Weather StatementFFCBartow35 min
Mar 25, 7:37 PM EDTRiver Flood WarningFFCWhitfield4 days
Mar 25, 7:45 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Fulton, Paulding45 min

Nearby

Flash Flood Warnings in Georgia, 2021Every 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.