Red Flag Warning
2025-12-17T18:00:00-07:00

* AFFECTED AREA...Fire Weather Zones 241, 242, 243, 245 and 246. * TIMING...Until 6 PM MST this evening. * WINDS...West 15 to 30 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.


Thompson River River Levels

Last Updated: December 17, 2025

The Thompson River is a major tributary of the Fraser River, flowing 489 km through British Columbia, Canada.


Summary

Total streamflow across the Thompson River was last observed at 852 cfs, and is expected to yield approximately 1,690 acre-ft of water today; about 45% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,907 cfs, with recent peaks last observed on 2014-09-11 when daily discharge volume was observed at 89,587 cfs.

Maximum discharge along the river is currently at the Thompson River Near Thompson Falls Mt reporting a streamflow rate of 852 cfs. However, the streamgauge with the highest stage along the river is the Thompson River At Trenton with a gauge stage of 10.4 ft. This river is monitored from 3 different streamgauging stations along the Thompson River, the highest being situated at an altitude of 2,440 ft, the Thompson River Near Thompson Falls Mt.

River Details

Last Updated 2025-12-17
Discharge Volume 1,690 ACRE-FT
Streamflow 852.0 cfs
+29.0 cfs (+3.52%)
Percent of Normal 44.68%
Maximum 89,587.0 cfs
2014-09-11
Seasonal Avg 1,907 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Thompson River Near Thompson Falls Mt
USGS 12389500
852 cfs 3.99 ft 3.52
Thompson River At Davis City
USGS 06898000
22 cfs 0.81 ft 4.67
Thompson River At Trenton
USGS 06899500
153 cfs 10.4 ft 9.29
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Thompson River is the largest tributary of the Fraser River, flowing through the south-central portion of British Columbia, Canada. The Thompson River has two main branches, the South Thompson River and the North Thompson River. The river is home to several varieties of Pacific salmon and trout. The area's geological history was heavily influenced by glaciation, and the several large glacial lakes have filled the river valley over the last 12,000 years. Archaeological evidence shows human habitation in the watershed dating back at least 8,300 years. The Thompson was named by Fraser River explorer, Simon Fraser, in honour of his friend, Columbia Basin explorer David Thompson. Recreational use of the river includes whitewater rafting and angling.