River Conditions
Illustrated map of Lake Lanier

River stage

Thomaston, Flint River

River level
4.15 ft
Status
Below flood stage
7-day change
+1.63 ft
Recent high
5.61 ft
Recent low
2.35 ft

Last reported 2026-10-13 | NWS TMSG1

30-day change
+1.55 ft
Average
3.17 ft
Readings
121
Data span
121 days
Record crest
21.83 ft

In brief

The Flint River at Thomaston, GA read 4.15 ft on Oct 13, 2026, 4.85 ft below action stage. That is 1.55 ft higher than 30 days earlier.

Source: National Weather Service gauge TMSG1

River level timeline

2.02.73.44.14.8SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 4.51LOW 2.354.19 ftLAST READING

Stage threshold profile

Action stage 9.00 ftMinor flooding 11.00 ftModerate flooding 13.00 ftMajor flooding 15.00 ft CURRENT 4.15 ft

Highest crests on record

RankCrestDate
1 21.83 ft 1994-07-07
2 19.30 ft 1902-02-28
3 19.30 ft 1948-11-28
4 19.00 ft 1971-03-03
5 17.35 ft 1990-03-17
6 16.50 ft 1952-03-05
7 16.35 ft 1975-04-04
8 15.99 ft 1976-03-18

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 9.00 ft

    Bankful conditions are reached upstream and downstream from the gage on Georgia Highway 36.

  2. 11.00 ft

    Minor flooding occurs of the natural floodplain upstream and downstream from the gage on Georgia Highway 36.

  3. 13.00 ft

    Moderate flooding occurs upstream and downstream of the gage on the Georgia Highway 36 bridge. Floodwaters approach foundation of a house on the right bank upstream of the gage.

  4. 15.00 ft

    Major flooding occurs upstream and downstream of the gage on the Georgia Highway 36 bridge. Floodwater cuts off access to some houses on the right bank of the river, upstream of the gage. Several buildings are inundated with 1 to 3 feet of water.

  5. 19.00 ft

    Major flooding continues upstream and downstream of the gage on the Georgia Highway 36 bridge. Access to homes along the right bank of the river are cut off and buildings are inundated with several feet of water. Water touches the bottom of the bridge support on the left bank.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Flint River flooding at Thomaston?

No. The Flint River at Thomaston is at 4.15 ft, 4.85 ft below action stage.

What is the flood stage at Thomaston?

The National Weather Service sets action stage 9 ft, minor flooding 11 ft, moderate flooding 13 ft and major flooding 15 ft.

What is the highest the Flint River has been at Thomaston?

The highest crest on record is 21.83 ft, on 1994-07-07.

Is the Flint River high or low right now at Thomaston?

At 4.15 ft it is higher than 93% of readings over the last 121 days.

Stage and flood information from the NOAA National Weather Service (gauge TMSG1); daily history from the U.S. Geological Survey (site 02346180). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.