Major Flood
12.5 ft
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: SVCC2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
11 ft
Minor Flood
9.5 ft
Action Stage
8.5 ft
What Floods at Each Level
13 ft
Extensive, life-threatening flooding occurs with roads crossing Saint Vrain Creek likely impassable.
12.5 ft
Widespread, major flooding occurs with many roads, homes and businesses impacted. This level represents a flood that has a 2-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
11 ft
Houses and businesses along the creek in Longmont flood.
10.5 ft
Water overtops driveways and parking lots near Main Street in Longmont.
9.7 ft
Saint Vrain Creek is at full capacity through Longmont.
9.5 ft
Structures in low lying areas along the creek in Longmont begin to flood.
8.5 ft
There is lowland and meadow flooding along the creek in western Longmont.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| May 4, 2015 | 6.71 ft | 1,820 cfs |
| Jun 1, 2014 | 5.74 ft | 1,210 cfs |
| Jun 6, 2021 | 5.05 ft | 896 cfs |
About This Gauge
NWS LID
SVCC2
River
Saint Vrain Creek
County
Boulder, CO
Coordinates
40.1775°N, 105.1781°W
Get Flood Alerts for Saint Vrain Creek
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.
Frequently Asked Questions
What is the current water level of Saint Vrain Creek at Hygiene?
The Saint Vrain Creek at Hygiene 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 Saint Vrain Creek at Hygiene?
The NWS-defined flood stage for Saint Vrain Creek at Hygiene is 9.5 feet. Action stage begins at 8.5 feet. Moderate flooding starts at 11 feet, and major flooding at 12.5 feet.
How do I get alerts when Saint Vrain Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Saint Vrain Creek at Hygiene to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Saint Vrain Creek at Hygiene gauge located?
The gauge is located in Boulder County, Colorado at coordinates 40.1775°N, 105.1781°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Saint Vrain Creek
On This River
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Source & Notes
Data provided by: CO Division of Water Resources
- Stage may be affected by ice.