TornadoLiveMap

Arroyo Tapo at Walnut — water level right now

Ventura County, California · NWS gauge ARTC1
Loading the latest reading…
–
current stage (ft)
 
4.2
minor flood stage
 
–
flood status
official NWS category
Official NOAA forecast → Full US flood map →

Flood stages at this gauge

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

action · 3.9
minor · 4.2
moderate · 5.7
major · 7.45
Flood stageLevel (ft)What it means
Major flood stage7.45extensive inundation and significant evacuations — a serious event
Moderate flood stage5.7some buildings and roads inundated; evacuations possible
Minor flood stage4.2low-lying roads and fields near the river start to flood
Action stage3.9water 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

Arroyo Simi at Royal Ave. 2 mi away · loading… Arroyo Tapo 2 mi away · loading… Arroyo Simi above White Oak 3 mi away · loading… Arroyo Simi at Stow 3 mi away · loading… Arroyo Simi near Simi Valley 4 mi away · loading… Santa Clara River (CA) near Piru 7 mi away · loading…

Gauge details

NWS gauge IDARTC1
CountyVentura
StateCalifornia
NWS forecast officeOxnard
River forecast centerCalifornia Nevada River Forecast Center
Coordinates34.297, -118.721
Time zoneGMT0GMT
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 Arroyo Tapo at Walnut

Is Arroyo Tapo at Walnut 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 4.2 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Arroyo Tapo at Walnut?

major flood stage 7.45 ft, moderate flood stage 5.7 ft, minor flood stage 4.2 ft, action stage 3.9 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 Oxnard and local emergency management.