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Level of the Lake

Chattooga River near Clayton

No flooding

USGS 02177000 · NWS CYNG1 · Rabun County

224cfs

USGS · 6:00 PM EST

Gage height

1.28 ft

Share of river inflow

84%

Streamflow · past 7 days

250307364Nov 7Nov 11Nov 14
Streamflow, past 7 days, latest 224 cfs, peak 371 cfs on Nov 7, 6 PM (60 of 671 readings, evenly spaced, first and latest included)
TimeFlow (cfs)
Nov 7, 6 PM371
Nov 7, 9 PM359
Nov 8, 12 AM347
Nov 8, 3 AM347
Nov 8, 5 AM341
Nov 8, 8 AM329
Nov 8, 11 AM323
Nov 8, 2 PM318
Nov 8, 5 PM312
Nov 8, 8 PM306
Nov 8, 11 PM301
Nov 9, 1 AM301
Nov 9, 4 AM295
Nov 9, 7 AM295
Nov 9, 10 AM290
Nov 9, 1 PM290
Nov 9, 4 PM285
Nov 9, 6 PM279
Nov 9, 9 PM279
Nov 10, 12 AM274
Nov 10, 3 AM274
Nov 10, 6 AM269
Nov 10, 9 AM269
Nov 10, 11 AM269
Nov 10, 2 PM264
Nov 10, 5 PM264
Nov 10, 8 PM258
Nov 10, 11 PM258
Nov 11, 2 AM258
Nov 11, 4 AM258
Nov 11, 7 AM253
Nov 11, 10 AM253
Nov 11, 1 PM253
Nov 11, 4 PM253
Nov 11, 7 PM248
Nov 11, 9 PM248
Nov 12, 12 AM248
Nov 12, 3 AM248
Nov 12, 6 AM248
Nov 12, 9 AM248
Nov 12, 12 PM248
Nov 12, 3 PM248
Nov 12, 5 PM243
Nov 12, 8 PM243
Nov 12, 11 PM243
Nov 13, 2 AM243
Nov 13, 5 AM243
Nov 13, 8 AM243
Nov 13, 10 AM243
Nov 13, 1 PM239
Nov 13, 4 PM239
Nov 13, 7 PM239
Nov 13, 10 PM234
Nov 14, 1 AM234
Nov 14, 3 AM234
Nov 14, 6 AM229
Nov 14, 9 AM229
Nov 14, 12 PM229
Nov 14, 3 PM224
Nov 14, 6 PM224

15-minute readings · USGS · provisional

NWS flood stages

Major flood29.00 ftModerate flood20.00 ftMinor flood15.00 ftNear flood14.00 ft0.00 ftnow · 1.28 ft

now = USGS gage height · 6:00 PM EST

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.