Alert archive / Georgia / Flash Flood Warnings in 2017

Flash Flood Warning 1, NWS Atlanta, GA

January 2, 2017Chattahoochee County, Muscogee County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jan 2, 2017, 7:45 PM EST for Chattahoochee County, Muscogee County, Georgia. It was in force for 6 hr. 6 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
Jan 2, 2017, 7:45 PM EST (00:45 UTC)
Expired
Jan 3, 2017, 1:45 AM EST
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Chattahoochee County, GA, Muscogee County, GA

The radar

The Maxwell AFB radar (KMXX), 82 km from the middle of the area, began a volume at 00:48 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
Jan 2, 7:55 PM ESTFLOODNorth Highlands, GASEVERAL VEHICLES STALLED IN STANDING WATER ON VETERANS PKWY NEAR RIVER RD
Jan 2, 7:55 PM ESTFLASH FLOODNorth Highlands, GASEVERAL VEHICLES STALLED IN STANDING WATER ON VETERANS PKWY NEAR RIVER RD
Jan 2, 8:10 PM ESTFLOOD2 Sse Battle Park, GASTREET FLOODING REPORTED ALONG MANY ROADS IN A HOUSING SUBDIVISION WITH MANY HOMES AT RISK OF FLOODING NEAR STOWERS ELEMENTARY SCHOOL.
Jan 2, 8:10 PM ESTFLASH FLOOD2 Sse Battle Park, GASTREET FLOODING REPORTED ALONG MANY ROADS IN A HOUSING SUBDIVISION WITH MANY HOMES AT RISK OF FLOODING NEAR STOWERS ELEMENTARY SCHOOL.
Jan 2, 8:15 PM ESTFLOOD2 Ssw Ochillee, GAEMERGENCY 911 HAS RECIEVED REPORTS OF EXTENSIVE FLOODING ON SOUTHBOUND HWY 27/280 AND 8TH DIVISION ROAD
Jan 2, 8:15 PM ESTFLASH FLOOD2 Ssw Ochillee, GAEMERGENCY 911 HAS RECIEVED REPORTS OF EXTENSIVE FLOODING ON SOUTHBOUND HWY 27/280 AND 8TH DIVISION ROAD

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 00:00Z, 0.8 hours before the alert went out and 232 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, Tallahassee Rgnl, FL at 00:00Z on 2017-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 202 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, Tallahassee Rgnl, FL at 00:00Z on 2017-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.19395878Sfc1 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
202 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.4

Open this sounding in Storm Lab

The text

As transmitted.

800 
WGUS52 KFFC 030045
FFWFFC
GAC053-215-030645-
/O.NEW.KFFC.FF.W.0001.170103T0045Z-170103T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Peachtree City GA
745 PM EST MON JAN 2 2017

The National Weather Service in Peachtree City has issued a

* Flash Flood Warning for...
  Chattahoochee County in west central Georgia...
  Muscogee County in west central Georgia...

* Until 145 AM EST

* At 745 PM EST, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Columbus, Cusseta, Upatoi, Fort Benning/lawson Army Air Fld, Bibb
  City, North Fort Benning, Edgewood, Eelbeck/West Fort Benning,
  Kenwood, Rose Hill, Avondale, Benning Park, Manta, Columbus
  Metropolitan Airport, Saint Marys Hills, Vista Terrace, Green
  Island Hills, Benning Hills, Flat Rock and Christopher.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

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 3259 8491 3258 8491 3258 8472 3223 8466
      3223 8492 3225 8492 3226 8489 3230 8494
      3232 8500 3234 8501 3238 8497 3239 8499
      3239 8497 3241 8498 3243 8496 3245 8499
      3252 8500 3257 8505

$$
1 follow-up statement
837 
WGUS72 KFFC 030210
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
910 PM EST MON JAN 2 2017

GAC053-215-030645-
/O.CON.KFFC.FF.W.0001.000000T0000Z-170103T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chattahoochee GA-Muscogee GA-
910 PM EST MON JAN 2 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM EST FOR
CHATTAHOOCHEE AND MUSCOGEE COUNTIES...

At 906 PM EST, NWS Meteorologists continued to monitor thunderstorms
producing heavy rain across the warned area. Up to three inches of
rain have already fallen since 6 PM EST. 

Some locations that will experience flooding include...
Columbus, Cusseta, Upatoi, Fort Benning/Lawson Army Air Field, Bibb
City, North Fort Benning, Edgewood, Eelbeck/West Fort Benning,
Kenwood, Rose Hill, Avondale, Benning Park, Manta, Columbus
Metropolitan Airport, Saint Marys Hills, Vista Terrace, Green Island
Hills, Benning Hills, Flat Rock and Christopher.

Additional rainfall amounts of one half to one inch are possible in
the warned area through 11 PM EST when the rain is expected to end.
Even after the rain ends, water levels on larger creeks and streams
may continue to rise causing additional flooding.

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.

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 3259 8491 3258 8491 3258 8472 3223 8466
      3223 8492 3225 8492 3226 8489 3230 8494
      3232 8500 3234 8501 3238 8497 3239 8499
      3239 8497 3241 8498 3243 8496 3245 8499
      3252 8500 3257 8505

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 2, 7:15 PM ESTSpecial Weather StatementFFCMarion30 min
Jan 2, 7:26 PM ESTSpecial Weather StatementFFCChattahoochee, Muscogee64 min
Jan 2, 7:29 PM ESTSevere Thunderstorm WarningFFCMarion, Talbot, Taylor16 min
Jan 2, 8:34 PM ESTSpecial Weather StatementFFCCrawford, Monroe, Taylor26 min
Jan 2, 9:02 PM ESTSpecial Weather StatementFFCCrawford, Monroe28 min
Jan 2, 10:51 PM ESTSevere Thunderstorm WarningFFCCrisp, Wilcox39 min
Jan 2, 11:13 PM ESTSevere Thunderstorm WarningFFCDodge, Pulaski, Telfair, Wilcox47 min
Jan 2, 11:31 PM ESTSevere Thunderstorm WarningFFCDodge, Laurens, Telfair, Wheeler44 min
Jan 2, 11:57 PM ESTWind AdvisoryFFCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 47 more3 hr
Jan 3, 12:15 AM ESTSevere Thunderstorm WarningFFCEmanuel, Johnson, Laurens, Montgomery, Treutlen, Wheeler45 min
Jan 3, 12:30 AM ESTSevere Thunderstorm WarningFFCEmanuel, Laurens, Montgomery, Toombs, Treutlen, Wheeler45 min
Jan 3, 12:36 AM ESTRiver Flood WarningFFCGwinnett24 hr
Jan 3, 12:36 AM ESTRiver Flood WarningFFCForsyth, Fulton, Gwinnett6 days
Jan 3, 4:06 AM ESTRiver Flood WarningFFCBleckley, Pulaski72 hr
Jan 3, 4:06 AM ESTRiver Flood WarningFFCDodge, Telfair, Wilcox30 hr
Jan 3, 6:40 AM ESTRiver Flood WarningFFCBibb, Crawford, Houston, Peach40 hr
Jan 3, 7:28 AM ESTRiver Flood WarningFFCBibb, Houston, Jones, Monroe, Twiggs48 hr
Jan 3, 2:50 PM ESTRiver Flood WarningFFCCoweta, Fayette, Spalding24 hr

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.