Red Flag Warning
2025-12-20T00:00:00-07:00

...THIS IS A PARTICULARLY DANGEROUS SITUATION FOR IN AND IMMEDIATELY ADJACENT TO THE FOOTHILLS, BETWEEN 5500 AND 9000 FEET, FOR BOULDER AND JEFFERSON COUNTIES ON FRIDAY... Strong west winds, sustained 45-55 mph with gusts upwards of 85- 105 mph, are expected in the foothills of Larimer, Boulder and Jefferson Counties beginning early Friday morning. Relative humidity values are expected to drop into the low teens, possibly upper single digits. While Red Flag conditions, critical fire weather, are expected across a larger area in northern Colorado, the most extreme conditions are expected to be along Highway 93 from Jefferson County into Boulder County and along US-36 north of Boulder to the Larimer County line and westward. There will be a high potential for fast moving wildfires, should any new starts occur. Winds toward I-25 and eastward will be slower to develop, and also speeds will be considerably lighter. That said, gusts of 25- 40 mph are still expected to combine with very low humidity and cured grasses to support critical fire weather conditions. Such conditions may be a longer duration than usual, with potential for low humidity to extend well into the evening hours. * AFFECTED AREA...Fire Weather Zones 238, 240, 241, 242 and 243. * TIMING...From 10 AM this morning to midnight MST tonight. * WINDS...West 15 to 25 mph with gusts up to 60 mph possible west of I-25, and gusts to 40 mph possible along and east of I- 25. * RELATIVE HUMIDITY...As low as 12 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.


Savannah River River Levels

Last Updated: December 19, 2025

The Savannah River is a major river in the southeastern United States.


Summary

Total streamflow across the Savannah River was last observed at 40,580 cfs, and is expected to yield approximately 80,489 acre-ft of water today; about 39% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 105,256 cfs, with recent peaks last observed on 2016-01-12 when daily discharge volume was observed at 642,100 cfs.

Maximum discharge along the river is currently at the Savannah River At Fort Pulaski reporting a streamflow rate of 41,300 cfs. However, the streamgauge with the highest stage along the river is the Savannah River At Augusta with a gauge stage of 96.81 ft. This river is monitored from 6 different streamgauging stations along the Savannah River, the highest being situated at an altitude of 121 ft, the Savannah River At Augusta.

River Details

Last Updated 2025-12-19
Discharge Volume 80,489 ACRE-FT
Streamflow 40,580.0 cfs
+1580.0 cfs (+4.05%)
Percent of Normal 38.55%
Maximum 642,100.0 cfs
2016-01-12
Seasonal Avg 105,256 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Savannah River At Augusta
USGS 02197000
3990 cfs 96.81 ft -6.99
Savannah R At Burtons Ferry Br Nr Millhaven
USGS 02197500
5990 cfs 5.56 ft 0.34
Savannah River Near Clyo
USGS 02198500
6300 cfs 4.6 ft 5.7
Savannah River Near Port Wentworth
USGS 02198840
12000 cfs 1.79 ft 35.14
Savannah River At Fort Pulaski
USGS 02198980
41300 cfs 1.71 ft 361.97
Savannah River At Ga 25
USGS 02198920
12300 cfs 1.96 ft -11.51
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

For the Department of Energy facility, see Savannah River Site

The Savannah River is a major river in the southeastern United States, forming most of the border between the states of South Carolina and Georgia. Two tributaries of the Savannah, the Tugaloo River and the Chattooga River, form the northernmost part of the border. The Savannah River drainage basin extends into the southeastern side of the Appalachian Mountains just inside North Carolina, bounded by the Eastern Continental Divide. The river is around 301 miles (484 km) long. It is formed by the confluence of the Tugaloo River and the Seneca River. Today this confluence is submerged beneath Lake Hartwell. The Tallulah Gorge is located on the Tallulah River, a tributary of the Tugaloo River that forms the northwest branch of the Savannah River.
Two major cities are located along the Savannah River:
Savannah, and Augusta, Georgia. They were nuclei of early English settlements during the Colonial period of American history.
The Savannah River is tidal at Savannah proper. Downstream from there, the river broadens into an estuary before flowing into the Atlantic Ocean. The area where the river's estuary meets the ocean is known as "Tybee Roads". The Intracoastal Waterway flows through a section of the Savannah River near the city of Savannah.