Every quotation below is Valley Water's own text, unedited. The captured reading and exact distance to the first threshold that names this place come before the map, so the resident answer is not hidden behind geography.
West Valley watershed · captured reading 0.51 ft · first named at threshold 3, 6.4 ft
At the captured reading, this creek is 5.89 feet below the level where US-101 is named.
If Saragota Creek has substantial flows as well, overbanking on the east bank is possible between US-101 and Scott Blvd.
Valley Water, threshold 3 description for San Tomas Creek above Williams Rd
Floodwaters may continue to move northward, bounded by San Tomas and Scott Blvd, crossing the Caltrain tracks toward US-101.
Valley Water, threshold 4 description for San Tomas Creek above Williams Rd
Lower Peninsula watershed · captured reading 2.56 ft · first named at threshold 1, 15.5 ft
At the captured reading, this creek is 12.94 feet below the level where US-101 is named.
Check Evelyn, Middlefield, Moffett, & US-101 for possible blockages.
Valley Water, threshold 1 description for Stevens Creek above CA-85 near Central Ave
Flooding near Moffett flows across US-101 flooding adjacent streets and buildings.
Valley Water, threshold 3 description for Stevens Creek above CA-85 near Central Ave
West Valley watershed · captured reading 1.49 ft · first named at threshold 4, 9.5 ft
At the captured reading, this creek is 8.01 feet below the level where US-101 is named.
Channel overtopping is possible upstream of Evelyn on the east bank, Wolfe Road, along the east bank upstream of Duane, for a short reach on both banks between Tasman and US-101, and immediately upstream and downstream of Caribbean Drive.
Valley Water, threshold 4 description for Sunnyvale East Channel at Bayshore Frontage Rd
Coyote watershed · captured reading 2.03 ft · first named at threshold 4, 11 ft
At the captured reading, this creek is 8.97 feet below the level where US-101 is named.
RV Storage lot north of US-101 flooded.
Valley Water, threshold 4 description for Coyote Creek at Madrone (USGS)
Pajaro watershed · captured reading 2.76 ft · first named at threshold 2, 12 ft
At the captured reading, this creek is 9.24 feet below the level where US-101 is named.
Flooding begins upstream of US-101 near Monterey Frontage Road.
Valley Water, threshold 2 description for Uvas Creek at W Luchessa Ave
US-101 flooded just north of Bolsa Road and floodwaters will eventually move eastward across the highway.
Valley Water, threshold 3 description for Uvas Creek at W Luchessa Ave
Highway 25 flooded at the US-101 interchange, as well as toward the east.
Valley Water, threshold 4 description for Uvas Creek at W Luchessa Ave
Coyote watershed · captured reading 0.29 ft
The captured reading cannot be compared to this threshold.
RV Storage lot north of US-101 flooded.
Valley Water, threshold 4 description for Fisher Creek at Laguna Ave (Not Real-Time)
Guadalupe watershed · captured reading 5.12 ft · first named at threshold 3, 20 ft
At the captured reading, this creek is 14.88 feet below the level where US-101 is named.
Highest risk areas are between US-101 and Trimble.
Valley Water, threshold 3 description for Guadalupe River at US-101 (USGS)
Levee overtopping, with failures likely along both sides of the river between US-101 and Trimble flowing in a northerly direction.
Valley Water, threshold 4 description for Guadalupe River at US-101 (USGS)
Lower Peninsula watershed · captured reading 0.20 ft · first named at threshold 2, 12 ft
At the captured reading, this creek is 11.80 feet below the level where US-101 is named.
Northerly breakouts flow into East Palo Alto along Euclid and Manhattan Avenue, causing deep ponding at their northern terminus against US-101.
Valley Water, threshold 2 description for San Francisquito Creek at Stanford (USGS)
Lower Peninsula watershed · captured reading -1.20 ft · first named at threshold 4, 7.3 ft
At the captured reading, this creek is 8.50 feet below the level where US-101 is named.
If tributary inflows are also very high, flooding is possible for the Palo Alto Airport, US-101, and towards neighborhoods in Palo Alto.
Valley Water, threshold 4 description for Palo Alto Flood Basin
