National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service
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GUADALUPE RIVER - SAN JOSE AT ALMADEN EXPRESSWAY (GUDC1)
Latitude: 37.28º NLongitude: 121.88º WElevation: 150 Feet
Location: Santa Clara County in CaliforniaRiver Group: Central Coast
Monitor Stage: 10.0 FeetFlood Stage: 13.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the Santa Clara Valley Water District.
View SCVWD Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2015*
--
--
--
2014*
--
--
--
2013*
--
--
--
2012*
--
--
--
2011*
--
--
--
 Historical High Stage/Flow Events (Period of Record - May 2002 to Present)
1999*
6,780
10.50
Dec 3, 1998
1995*
8,470
11.73
Jan 09, 1995
 * Discharge affected by regulation or diversion
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ513)
Today: A chance of rain in the morning, then rain in the afternoon. Rain may be heavy at times in the afternoon. Highs in the lower 60s. Southeast winds 10 to 20 mph.

Tonight: Showers in the evening, then a chance of showers after midnight. Lows in the upper 40s. Southeast winds 10 to 20 mph in the evening and becoming light.

Saturday: Partly cloudy. Highs in the mid 60s. Northwest winds 5 to 15 mph.

Saturday Night: Mostly cloudy. Lows in the mid 40s. Northwest winds 15 to 20 mph decreasing to 5 to 10 mph after midnight.

Sunday: Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs in the lower 60s. North winds up to 5 mph. Chance of rain 40 percent.

Sunday Night: Showers likely. Lows in the mid 40s.

Monday: Mostly cloudy. A slight chance of showers. Highs in the mid 60s.

Monday Night through Tuesday Night: Partly cloudy. Lows in the mid 40s. Highs in the mid 60s to lower 70s.

Wednesday and Wednesday Night: Mostly clear. Highs in the mid 70s. Lows in the upper 40s.

Thursday: Sunny. Highs in the upper 60s.
Impacts - E19 Information
10.0 FeetSCVWD may choose to deploy flood abatement measures at the I-280 underpass to protect downtown San Jose.
13.0 FeetGuadalup River begins to flood upstream of West Alma Avenue on right (east) bank side near the Elks Lodge. At higher stages, the Alma Avenue underpass beneath CA-87 and the Belmont Avenue neighborhood will likely flood. Ross Creek begins to flood near Jarvis and Cherry Avenues when stage reaches this value on the Guadalupe. At slightly higher stages, Ross Creek will continue to flood northward along surface streets, possibly reaching north of Capitol Expressway/Hillsdale Avenue. Canoas Creek may experience break-out near Nightingale Drive spreading both northward and southward along surface streets. At higher stages, the neighborhood south of Canos Creek at the confluence with the Guadalupe River will be inundated.
17.0 FeetFlow begins to leave the channel on the right (east) b ank side approximately 500 feet upstream of Branham Lane, at Harvest Meadow Court, upstream of the Capitol Expressway, and between Alma and Willow Streeet along Lelong Street. Flooding between Alma and Willow flow northward, inundating Willow Street underpass. Break-out locations along the left (west) bank include the Minnesota Avenue neighborhood upstream of CA-87. Flooding from Ross Creek will continue northward up to Curtner Avenue along surface streets. Flooding from Canos Creek will continue northward inundating local surface streets and the neighborhood north of Wren Drive at the confluence.
18.7 FeetWidespread flooding within the Guadalupe River/Ross Creek/Canos Creek confluence area and locations north and south. Inundated areas include the I-280/CA-87 interchange, the CA-87 Lelong Street onramp, Willow and Alma Street underpass, and the Washington-Guadalupe, Tamien, and Alma-Almaden neighborhoods and Washington Elementary school area. On the river's west side flooding is expected north of Alma Avenue and south of Willow Street, and streamward of Prevost Street. Inundation upstream of Branham Lane at the Cherry Avenue/Almaden Expressway shopping center on the river's west side with flows then escaping north along surface streets on the east side. The western edge of the Pinehurst neighborhood will undergo street flooding that will flow northward towards Hillsdale Avenue. Overbanking will occur upstream of Capitol Expressway/Hillsdale Avenue on the right bank, traveling east along the Capitol Expressway before flowing north along Foxworthy Avenue into the Farm Drive neighborhood and eventually ponding along Canoas Creek levee. Ross Creek continues to flood northwards along surface streets until reaching the I-280/CA-87 interchange. Canoas Creek continues to flood northwards into the Mill Pond neighborhood, inundating areas between CA-87 and Almaden Expressway, and eventually joining existing Guadalupe flood waters between CA-87 and the Guadalupe River.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS San Francisco Bay Area-Monterey Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.