TornadoLiveMap

Guadalupe River (CA) above Hwy 101 at San Jose — water level right now

Santa Clara County, California · NWS gauge GSJC1
Loading the latest reading…
–
current stage (ft)
 
19
minor flood stage
 
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 17
minor · 19
moderate · 20
major · 21
Flood stageLevel (ft)What it means
Major flood stage21extensive inundation and significant evacuations — a serious event
Moderate flood stage20some buildings and roads inundated; evacuations possible
Minor flood stage19low-lying roads and fields near the river start to flood
Action stage17water is approaching flood level — time to pay attention

Highest floods on record here

The National Weather Service has no historic crest list on file for this gauge.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

San Tomas Aquino Creek at Mission College Blvd. 2 mi away · loading… Calabazas Creek at Wilcox School 3 mi away · loading… Coyote Creek above Hwy 237 at Milpitas 3 mi away · loading… Coyote Creek at E William Street 4 mi away · loading… Lower Penitencia Creek at Machada Avenue 4 mi away · loading… Sunnyvale East above Hwy 101 4 mi away · loading…

Gauge details

NWS gauge IDGSJC1
USGS site11169025
CountySanta Clara
StateCalifornia
NWS forecast officeMonterey
River forecast centerCalifornia Nevada River Forecast Center
Coordinates37.374, -121.933
Time zonePST8PDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about Guadalupe River (CA) above Hwy 101 at San Jose

Is Guadalupe River (CA) above Hwy 101 at San Jose flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 19 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Guadalupe River (CA) above Hwy 101 at San Jose?

major flood stage 21 ft, moderate flood stage 20 ft, minor flood stage 19 ft, action stage 17 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Monterey and local emergency management.