StormCast — Weather & Emergency Alerts

South Saint Vrain Creek (CO) above Lyons
Colorado — Water Level & Flood Stage

Located in Boulder County, Colorado on the South Saint Vrain Creek (CO). Live water level data from USGS, updated every 15 minutes.

Current Water Level

Gage Height

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Streamflow

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Last Reading

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This is an NWS forecast point (LID: LINC2). Live data may be limited. View on NWS AHPS →

Flood Stages

Major Flood

13 ft

Moderate Flood

9.5 ft

3,150 cfs

Minor Flood

6 ft

1,160 cfs

Action Stage

5 ft

760 cfs

Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.

What Floods at Each Level

7 ft

HOUSE NEAR LYONS FLOODS

6 ft

WATER BACKS UP BEHIND CULVERT AND FLOODS OLD BRIDGE NEAR HIGHWAY 7

5 ft

WATER INTO LOW LYING AREAS

Impact statements from the National Weather Service, describing what typically happens at each water level.

7-Day Water Level Chart

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View Official NWS Hydrograph →

Historic Crests

Date Stage Flow
May 29, 19956.5 ft2,550 cfs
May 29, 19956.5 ft2,550 cfs

About This Gauge

NWS LID

LINC2

River

South Saint Vrain Creek (CO)

County

Boulder, CO

Coordinates

40.2044°N, 105.3136°W

Get Flood Alerts for South Saint Vrain Creek (CO)

StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.

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Frequently Asked Questions

What is the current water level of South Saint Vrain Creek (CO) above Lyons?

The South Saint Vrain Creek (CO) above Lyons gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.

What is flood stage for South Saint Vrain Creek (CO) above Lyons?

The NWS-defined flood stage for South Saint Vrain Creek (CO) above Lyons is 6 feet. Action stage begins at 5 feet. Moderate flooding starts at 9.5 feet, and major flooding at 13 feet.

How do I get alerts when South Saint Vrain Creek (CO) rises?

Download StormCast free on Google Play, go to River Gauges, and add South Saint Vrain Creek (CO) above Lyons to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.

Where is the South Saint Vrain Creek (CO) above Lyons gauge located?

The gauge is located in Boulder County, Colorado at coordinates 40.2044°N, 105.3136°W. Data is provided by the U.S. Geological Survey and the National Weather Service.

On This River

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Source & Notes

Data provided by: Mile High Flood District