Level of the Lake

Chattooga River near Clayton

No flooding

USGS 02177000 · NWS CYNG1 · Rabun County

172cfs

USGS · 11:00 AM EDT

Gage height

1.14 ft

Share of river inflow

91%

Streamflow · past 7 days

217317417Sep 22Sep 25Sep 29
Streamflow, past 7 days, latest 172 cfs, peak 429 cfs on Sep 23, 5 AM (60 of 669 readings, evenly spaced, first and latest included)
TimeFlow (cfs)
Sep 22, 12 PM207
Sep 22, 2 PM219
Sep 22, 5 PM365
Sep 22, 8 PM384
Sep 22, 11 PM371
Sep 23, 2 AM416
Sep 23, 5 AM423
Sep 23, 7 AM409
Sep 23, 10 AM390
Sep 23, 1 PM384
Sep 23, 4 PM347
Sep 23, 7 PM353
Sep 23, 10 PM409
Sep 24, 12 AM397
Sep 24, 3 AM365
Sep 24, 6 AM341
Sep 24, 9 AM329
Sep 24, 12 PM329
Sep 24, 3 PM318
Sep 24, 5 PM318
Sep 24, 8 PM301
Sep 24, 11 PM290
Sep 25, 2 AM279
Sep 25, 5 AM269
Sep 25, 8 AM264
Sep 25, 10 AM258
Sep 25, 1 PM253
Sep 25, 4 PM248
Sep 25, 7 PM243
Sep 25, 10 PM239
Sep 26, 1 AM234
Sep 26, 3 AM229
Sep 26, 6 AM224
Sep 26, 9 AM219
Sep 26, 12 PM215
Sep 26, 3 PM210
Sep 26, 6 PM210
Sep 26, 8 PM203
Sep 26, 11 PM203
Sep 27, 2 AM200
Sep 27, 5 AM196
Sep 27, 8 AM193
Sep 27, 11 AM193
Sep 27, 1 PM189
Sep 27, 4 PM189
Sep 27, 7 PM186
Sep 27, 10 PM186
Sep 28, 1 AM186
Sep 28, 3 AM182
Sep 28, 6 AM182
Sep 28, 9 AM182
Sep 28, 12 PM179
Sep 28, 3 PM179
Sep 28, 6 PM175
Sep 28, 8 PM175
Sep 28, 11 PM175
Sep 29, 2 AM175
Sep 29, 5 AM172
Sep 29, 8 AM172
Sep 29, 11 AM172

15-minute readings · USGS · provisional

NWS flood stages

Major flood29.00 ftModerate flood20.00 ftMinor flood15.00 ftNear flood14.00 ft0.00 ftnow · 1.14 ft

now = USGS gage height · 11:00 AM EDT

Forecasts are issued routinely year-round.

Historic crests

  • Aug 30, 194013.80 ft29,000 cfs
  • May 28, 197312.00 ft
  • Sep 27, 202411.37 ft34,300 cfs
  • Sep 17, 200411.21 ft33,300 cfs
  • Oct 4, 196411.12 ft
  • May 15, 197610.36 ft
  • Mar 4, 197910.12 ft
  • Sep 8, 20049.21 ft14,950 cfs

What floods at each stage

National Weather Service impact statements for this gauge, lowest stage first.

2.75 ft2.75 TO 3 INCHES OF RAIN IN 12 HOURS WILL TAKE RIVER TO 4.30 FT›

2.75 TO 3 INCHES OF RAIN IN 12 HOURS WILL TAKE RIVER TO 4.30 FT

3.50 ftGENERAL RAIN OF 3 TO 4 INCHES IN 12 HOURS WILL TAKE THE RIVER ABOVE FLOOD STAGE. RIVER LEVEL WILL BE AROUND 6 FT›

GENERAL RAIN OF 3 TO 4 INCHES IN 12 HOURS WILL TAKE THE RIVER ABOVE FLOOD STAGE. RIVER LEVEL WILL BE AROUND 6 FT

4.50 ftLEVEL AT WHICH WHITEWATER RAFTING WILL BECOME DANGEROUS AND RIVER OPERATIONS WILL BE SHUT DOWN. THERE IS A 5 HOUR DELAY IN CREST AFTER CREST AT BURG1.›

LEVEL AT WHICH WHITEWATER RAFTING WILL BECOME DANGEROUS AND RIVER OPERATIONS WILL BE SHUT DOWN. THERE IS A 5 HOUR DELAY IN CREST AFTER CREST AT BURG1.

5.00 ft5 INCH BASINWIDE 36 HR RAINFALL CAUSED 4 FT RISE...FROM 1.5 TO 5.5 FEET.›

5 INCH BASINWIDE 36 HR RAINFALL CAUSED 4 FT RISE...FROM 1.5 TO 5.5 FEET.

7.00 ftRIVER LEVELS WILL BE VERY HIGH AND VERY DANGEROUS FOR RAFTERS OR ANYONE NEAR THE RIVER.›

RIVER LEVELS WILL BE VERY HIGH AND VERY DANGEROUS FOR RAFTERS OR ANYONE NEAR THE RIVER.

15.00 ftROADS DOWNSTREAM MAY START TO FLOOD›

ROADS DOWNSTREAM MAY START TO FLOOD

42.00 ftROAD OVER THE RIVER WILL BEGIN TO FLOOD...BUT IS WELL ABOVE RECORD CREST OF 13.8 FEET.›

ROAD OVER THE RIVER WILL BEGIN TO FLOOD...BUT IS WELL ABOVE RECORD CREST OF 13.8 FEET.