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

...CRITICAL FIRE WEATHER CONDITIONS FRIDAY... Critical fire weather conditions over the northeast plains will gradually ease into this evening. Strong winds will redevelop in the foothills overnight, with high winds spreading slowly east across the nearby adjacent plains west of I-25 through the afternoon. Extremely high wind gusts of 85-100 mph combined with humidities dropping into the 10-20 percent range will create 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. Areas farther east into eastern Adams, Arapahoe, Elbert, and Lincoln counties have more uncertainty if those winds even develop, so those locations remain under a Fire Weather Watch. Such conditions may be a longer duration than usual, with potential for low humidity to extend well into the evening hours. The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM Friday to midnight MST Friday night. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 238, 239, 240, 241 and 243. * TIMING...From 10 AM Friday to midnight MST Friday night. * WINDS...West 20 to 35 mph, with gusts up to 80 mph or more immediately next to the foothills. Gusts closer to 40 mph along and east of I-25. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a fast moving wildfire.


Hudson River River Levels

Last Updated: December 18, 2025

The Hudson River is a 315-mile-long river that flows from the Adirondack Mountains in upstate New York to the Atlantic Ocean.


Summary

Total streamflow across the Hudson River was last observed at 13,762 cfs, and is expected to yield approximately 27,297 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 35,322 cfs, with recent peaks last observed on 2023-12-19 when daily discharge volume was observed at 330,110 cfs.

Maximum discharge along the river is currently at the Hudson River At Green Island Ny reporting a streamflow rate of 5,720 cfs. However, the streamgauge with the highest stage along the river is the Hudson River At Fort Edward Ny with a gauge stage of 21.08 ft. This river is monitored from 7 different streamgauging stations along the Hudson River, the highest being situated at an altitude of 1,565 ft, the Hudson River Near Newcomb Ny.

River Details

Last Updated 2025-12-18
Discharge Volume 27,297 ACRE-FT
Streamflow 13,762.0 cfs
-1866.0 cfs (-11.94%)
Percent of Normal 38.96%
Maximum 330,110.0 cfs
2023-12-19
Seasonal Avg 35,322 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Hudson River Near Newcomb Ny
USGS 01312000
110 cfs 1.67 ft -4.35
Hudson River At North Creek Ny
USGS 01315500
454 cfs 2.86 ft -24.33
Hudson River At Hadley Ny
USGS 01318500
958 cfs 2.45 ft -3.52
Hudson River At Fort Edward Ny
USGS 01327750
2780 cfs 21.08 ft 7.75
Hudson R Above Lock 1 Nr Waterford Ny
USGS 01335754
3740 cfs 19.42 ft 3.31
Hudson River At Lock 1 Near Waterford Ny
USGS 01335755
4430 cfs 18.55 ft 1.84
Hudson River At Green Island Ny
USGS 01358000
5720 cfs 15.93 ft -25.91
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Hudson River is a 315-mile (507 km) river that flows from north to south primarily through eastern New York in the United States. The river originates in the Adirondack Mountains of Upstate New York, flows southward through the Hudson Valley to the Upper New York Bay between New York City and Jersey City. It eventually drains into the Atlantic Ocean at New York Harbor. The river serves as a political boundary between the states of New Jersey and New York at its southern end. Further north, it marks local boundaries between several New York counties. The lower half of the river is a tidal estuary, deeper than the body of water into which it flows, occupying the Hudson Fjord, an inlet which formed during the most recent period of North American glaciation, estimated at 26,000 to 13,300 years ago. Tidal waters influence the Hudson's flow from as far north as the city of Troy.
The river is named after Henry Hudson, an Englishman sailing for the Dutch East India Company, who explored it in 1609, and after whom Hudson Bay in Canada is also named. It had previously been observed by Italian explorer Giovanni da Verrazzano sailing for King Francis I of France in 1524, as he became the first European known to have entered the Upper New York Bay, but he considered the river to be an estuary. The Dutch called the river the North River – with the Delaware River called the South River – and it formed the spine of the Dutch colony of New Netherland. Settlements of the colony clustered around the Hudson, and its strategic importance as the gateway to the American interior led to years of competition between the English and the Dutch over control of the river and colony.
During the eighteenth century, the river valley and its inhabitants were the subject and inspiration of Washington Irving, the first internationally acclaimed American author. In the nineteenth century, the area inspired the Hudson River School of landscape painting, an American pastoral style, as well as the concepts of environmentalism and wilderness. The Hudson was also the eastern outlet for the Erie Canal, which, when completed in 1825, became an important transportation artery for the early-19th-century United States.