National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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UPPER PENITENCIA CREEK - PIEDMOND ROAD (UPCC1)
Latitude: 37.39º NLongitude: 121.84º WElevation: 205 Feet
Location: Santa Clara County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Dec 26 2025 at 2:25 PM PSTNext Issuance: Dec 27 2025 at 9:00 AM PST
Action/Monitor: 6.5 FeetMinor Flood: 8.0 FeetModerate Flood: 9.0 FeetMajor Flood: 10.5 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Upper Penitencia Creek - Piedmont Road (UPCC1)
#
# File Generation Time:  12/26/2025 at 02:26 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 06:00 AM PST
# Maximum Observed Stage:                       5.27 Feet
# Maximum Observed Flow:                        14 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 02:00 PM PST
# Maximum Forecast Stage:                       5.06 Feet
# Maximum Forecast Flow:                        4 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 02 PM PST            4.72              0                        Normal
  12/21/2025 03 PM PST            4.72              0         0              Normal
  12/21/2025 04 PM PST            4.72              0         0              Normal
  12/21/2025 05 PM PST            4.72              0         0              Normal
  12/21/2025 06 PM PST            4.72              0         0              Normal
  12/21/2025 07 PM PST            4.72              0         0              Normal
  12/21/2025 08 PM PST            4.72              0         0              Normal
  12/21/2025 09 PM PST            4.72              0         0              Normal
  12/21/2025 10 PM PST            4.72              0         0              Normal
  12/21/2025 11 PM PST            4.72              0         0              Normal
  12/22/2025 12 AM PST            4.72              0         0              Normal
  12/22/2025 01 AM PST            4.72              0         0              Normal
  12/22/2025 02 AM PST            4.72              0         0              Normal
  12/22/2025 03 AM PST            4.72              0         0              Normal
  12/22/2025 04 AM PST            4.72              0         0              Normal
  12/22/2025 05 AM PST            4.76              0         +              Normal
  12/22/2025 06 AM PST            4.72              0         -              Normal
  12/22/2025 07 AM PST            4.72              0         0              Normal
  12/22/2025 08 AM PST            4.72              0         0              Normal
  12/22/2025 09 AM PST            4.72              0         0              Normal
  12/22/2025 10 AM PST            4.72              0         0              Normal
  12/22/2025 11 AM PST            4.72              0         0              Normal
  12/22/2025 12 PM PST            4.72              0         0              Normal
  12/22/2025 01 PM PST            4.72              0         0              Normal
  12/22/2025 02 PM PST            4.72              0         0              Normal
  12/22/2025 03 PM PST            4.72              0         0              Normal
  12/22/2025 04 PM PST            4.72              0         0              Normal
  12/22/2025 05 PM PST            4.72              0         0              Normal
  12/22/2025 06 PM PST            4.72              0         0              Normal
  12/22/2025 07 PM PST            4.72              0         0              Normal
  12/22/2025 08 PM PST            4.72              0         0              Normal
  12/22/2025 09 PM PST            4.72              0         0              Normal
  12/22/2025 10 PM PST            4.72              0         0              Normal
  12/22/2025 11 PM PST            4.72              0         0              Normal
  12/23/2025 12 AM PST            4.79              0         +              Normal
  12/23/2025 01 AM PST            4.73              0         -              Normal
  12/23/2025 02 AM PST            4.72              0         -              Normal
  12/23/2025 03 AM PST            4.72              0         0              Normal
  12/23/2025 04 AM PST            4.72              0         0              Normal
  12/23/2025 05 AM PST            4.72              0         0              Normal
  12/23/2025 06 AM PST            4.72              0         0              Normal
  12/23/2025 07 AM PST            4.72              0         0              Normal
  12/23/2025 08 AM PST            4.72              0         0              Normal
  12/23/2025 09 AM PST            4.72              0         0              Normal
  12/23/2025 10 AM PST            4.72              0         0              Normal
  12/23/2025 11 AM PST            4.72              0         0              Normal
  12/23/2025 12 PM PST            4.72              0         0              Normal
  12/23/2025 01 PM PST            4.72              0         0              Normal
  12/23/2025 02 PM PST            4.72              0         0              Normal
  12/23/2025 03 PM PST            4.72              0         0              Normal
  12/23/2025 04 PM PST            4.72              0         0              Normal
  12/23/2025 05 PM PST            4.72              0         0              Normal
  12/23/2025 06 PM PST            4.72              0         0              Normal
  12/23/2025 07 PM PST            4.72              0         0              Normal
  12/23/2025 08 PM PST            4.72              0         0              Normal
  12/23/2025 09 PM PST            4.72              0         0              Normal
  12/23/2025 10 PM PST            4.72              0         0              Normal
  12/23/2025 11 PM PST            4.72              0         0              Normal
  12/24/2025 12 AM PST            4.72              0         0              Normal
  12/24/2025 01 AM PST            4.72              0         0              Normal
  12/24/2025 02 AM PST            4.72              0         0              Normal
  12/24/2025 03 AM PST            4.72              0         0              Normal
  12/24/2025 04 AM PST            4.72              0         0              Normal
  12/24/2025 05 AM PST            4.72              0         0              Normal
  12/24/2025 06 AM PST            4.72              0         0              Normal
  12/24/2025 07 AM PST            4.72              0         0              Normal
  12/24/2025 08 AM PST            4.72              0         0              Normal
  12/24/2025 09 AM PST            4.72              0         0              Normal
  12/24/2025 10 AM PST            4.72              0         0              Normal
  12/24/2025 11 AM PST            4.72              0         0              Normal
  12/24/2025 12 PM PST            4.72              0         0              Normal
  12/24/2025 01 PM PST            4.72              0         0              Normal
  12/24/2025 02 PM PST            4.72              0         0              Normal
  12/24/2025 03 PM PST            4.72              0         0              Normal
  12/24/2025 04 PM PST            4.72              0         0              Normal
  12/24/2025 05 PM PST            4.72              0         0              Normal
  12/24/2025 06 PM PST            4.72              0         0              Normal
  12/24/2025 07 PM PST            4.72              0         0              Normal
  12/24/2025 08 PM PST            4.72              0         0              Normal
  12/24/2025 09 PM PST            4.72              0         0              Normal
  12/24/2025 10 PM PST            4.72              0         0              Normal
  12/24/2025 11 PM PST            4.72              0         0              Normal
  12/25/2025 12 AM PST            4.72              0         0              Normal
  12/25/2025 01 AM PST            4.72              0         0              Normal
  12/25/2025 02 AM PST            4.72              0         0              Normal
  12/25/2025 03 AM PST            4.72              0         0              Normal
  12/25/2025 04 AM PST            4.72              0         0              Normal
  12/25/2025 05 AM PST            5.19             10         +              Normal
  12/25/2025 06 AM PST            5.27             14         +              Normal
  12/25/2025 07 AM PST            5.08              5         -              Normal
  12/25/2025 08 AM PST            5.01              3         -              Normal
  12/25/2025 09 AM PST            4.94              1         -              Normal
  12/25/2025 10 AM PST            4.83              0         -              Normal
  12/25/2025 11 AM PST            4.90              1         +              Normal
  12/25/2025 12 PM PST            4.94              1         +              Normal
  12/25/2025 01 PM PST            4.98              2         +              Normal
  12/25/2025 02 PM PST            5.02              3         +              Normal
  12/25/2025 03 PM PST            5.24             12         +              Normal
  12/25/2025 04 PM PST            5.22             11         -              Normal
  12/25/2025 05 PM PST            5.20             10         -              Normal
  12/25/2025 06 PM PST            5.17              9         -              Normal
  12/25/2025 07 PM PST            5.14              7         -              Normal
  12/25/2025 08 PM PST            5.12              7         -              Normal
  12/25/2025 09 PM PST            5.15              8         +              Normal
  12/25/2025 10 PM PST            5.09              6         -              Normal
  12/25/2025 11 PM PST            5.08              5         -              Normal
  12/26/2025 12 AM PST            5.05              4         -              Normal
  12/26/2025 01 AM PST            5.22             11         +              Normal
  12/26/2025 02 AM PST            5.11              6         -              Normal
  12/26/2025 03 AM PST            5.07              5         -              Normal
  12/26/2025 04 AM PST            5.09              6         +              Normal
  12/26/2025 05 AM PST            5.04              4         -              Normal
  12/26/2025 06 AM PST            5.04              4         0              Normal
  12/26/2025 07 AM PST            5.01              3         -              Normal
  12/26/2025 08 AM PST            5.00              3         -              Normal
  12/26/2025 09 AM PST            5.00              3         0              Normal
  12/26/2025 10 AM PST            4.99              2         -              Normal
  12/26/2025 11 AM PST            5.02              3         +              Normal
  12/26/2025 12 PM PST            5.07              5         +              Normal
  12/26/2025 01 PM PST            5.07              5         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 02 PM PST            5.06              4                        Normal
  12/26/2025 03 PM PST            5.05              4         -              Normal
  12/26/2025 04 PM PST            5.04              4         -              Normal
  12/26/2025 05 PM PST            5.03              3         -              Normal
  12/26/2025 06 PM PST            5.02              3         -              Normal
  12/26/2025 07 PM PST            5.01              3         -              Normal
  12/26/2025 08 PM PST            5.00              3         -              Normal
  12/26/2025 09 PM PST            4.98              2         -              Normal
  12/26/2025 10 PM PST            4.97              2         -              Normal
  12/26/2025 11 PM PST            4.95              2         -              Normal
  12/27/2025 12 AM PST            4.93              1         -              Normal
  12/27/2025 01 AM PST            4.90              1         -              Normal
  12/27/2025 02 AM PST            4.90              1         0              Normal
  12/27/2025 03 AM PST            4.90              1         0              Normal
  12/27/2025 04 AM PST            4.90              1         0              Normal
  12/27/2025 05 AM PST            4.90              1         0              Normal
  12/27/2025 06 AM PST            4.90              1         0              Normal
  12/27/2025 07 AM PST            4.90              1         0              Normal
  12/27/2025 08 AM PST            4.90              1         0              Normal
  12/27/2025 09 AM PST            4.90              1         0              Normal
  12/27/2025 10 AM PST            4.90              1         0              Normal
  12/27/2025 11 AM PST            4.90              1         0              Normal
  12/27/2025 12 PM PST            4.90              1         0              Normal
  12/27/2025 01 PM PST            4.90              1         0              Normal
  12/27/2025 02 PM PST            4.90              1         0              Normal
  12/27/2025 03 PM PST            4.90              1         0              Normal
  12/27/2025 04 PM PST            4.90              1         0              Normal
  12/27/2025 05 PM PST            4.90              1         0              Normal
  12/27/2025 06 PM PST            4.90              1         0              Normal
  12/27/2025 07 PM PST            4.90              1         0              Normal
  12/27/2025 08 PM PST            4.90              1         0              Normal
  12/27/2025 09 PM PST            4.90              1         0              Normal
  12/27/2025 10 PM PST            4.90              1         0              Normal
  12/27/2025 11 PM PST            4.90              1         0              Normal
  12/28/2025 12 AM PST            4.90              1         0              Normal
  12/28/2025 01 AM PST            4.90              1         0              Normal
  12/28/2025 02 AM PST            4.90              1         0              Normal
  12/28/2025 03 AM PST            4.90              1         0              Normal
  12/28/2025 04 AM PST            4.90              1         0              Normal
  12/28/2025 05 AM PST            4.90              1         0              Normal
  12/28/2025 06 AM PST            4.90              1         0              Normal
  12/28/2025 07 AM PST            4.90              1         0              Normal
  12/28/2025 08 AM PST            4.90              1         0              Normal
  12/28/2025 09 AM PST            4.90              1         0              Normal
  12/28/2025 10 AM PST            4.90              1         0              Normal
  12/28/2025 11 AM PST            4.90              1         0              Normal
  12/28/2025 12 PM PST            4.90              1         0              Normal
  12/28/2025 01 PM PST            4.90              1         0              Normal
  12/28/2025 02 PM PST            4.90              1         0              Normal
  12/28/2025 03 PM PST            4.90              1         0              Normal
  12/28/2025 04 PM PST            4.90              1         0              Normal
  12/28/2025 05 PM PST            4.90              1         0              Normal
  12/28/2025 06 PM PST            4.90              1         0              Normal
  12/28/2025 07 PM PST            4.90              1         0              Normal
  12/28/2025 08 PM PST            4.90              1         0              Normal
  12/28/2025 09 PM PST            4.90              1         0              Normal
  12/28/2025 10 PM PST            4.90              1         0              Normal
  12/28/2025 11 PM PST            4.90              1         0              Normal
  12/29/2025 12 AM PST            4.90              1         0              Normal
  12/29/2025 01 AM PST            4.90              1         0              Normal
  12/29/2025 02 AM PST            4.90              1         0              Normal
  12/29/2025 03 AM PST            4.90              1         0              Normal
  12/29/2025 04 AM PST            4.90              1         0              Normal
  12/29/2025 05 AM PST            4.90              1         0              Normal
  12/29/2025 06 AM PST            4.90              1         0              Normal
  12/29/2025 07 AM PST            4.90              1         0              Normal
  12/29/2025 08 AM PST            4.90              1         0              Normal
  12/29/2025 09 AM PST            4.90              1         0              Normal
  12/29/2025 10 AM PST            4.90              1         0              Normal
  12/29/2025 11 AM PST            4.90              1         0              Normal
  12/29/2025 12 PM PST            4.90              1         0              Normal
  12/29/2025 01 PM PST            4.90              1         0              Normal
  12/29/2025 02 PM PST            4.90              1         0              Normal
  12/29/2025 03 PM PST            4.90              1         0              Normal
  12/29/2025 04 PM PST            4.90              1         0              Normal
  12/29/2025 05 PM PST            4.90              1         0              Normal
  12/29/2025 06 PM PST            4.90              1         0              Normal
  12/29/2025 07 PM PST            4.90              1         0              Normal
  12/29/2025 08 PM PST            4.90              1         0              Normal
  12/29/2025 09 PM PST            4.90              1         0              Normal
  12/29/2025 10 PM PST            4.90              1         0              Normal
  12/29/2025 11 PM PST            4.90              1         0              Normal
  12/30/2025 12 AM PST            4.90              1         0              Normal
  12/30/2025 01 AM PST            4.90              1         0              Normal
  12/30/2025 02 AM PST            4.90              1         0              Normal
  12/30/2025 03 AM PST            4.90              1         0              Normal
  12/30/2025 04 AM PST            4.90              1         0              Normal
  12/30/2025 05 AM PST            4.90              1         0              Normal
  12/30/2025 06 AM PST            4.90              1         0              Normal
  12/30/2025 07 AM PST            4.90              1         0              Normal
  12/30/2025 08 AM PST            4.90              1         0              Normal
  12/30/2025 09 AM PST            4.90              1         0              Normal
  12/30/2025 10 AM PST            4.90              1         0              Normal
  12/30/2025 11 AM PST            4.90              1         0              Normal
  12/30/2025 12 PM PST            4.90              1         0              Normal
  12/30/2025 01 PM PST            4.90              1         0              Normal
  12/30/2025 02 PM PST            4.90              1         0              Normal
  12/30/2025 03 PM PST            4.90              1         0              Normal
  12/30/2025 04 PM PST            4.90              1         0              Normal
  12/30/2025 05 PM PST            4.90              1         0              Normal
  12/30/2025 06 PM PST            4.90              1         0              Normal
  12/30/2025 07 PM PST            4.90              1         0              Normal
  12/30/2025 08 PM PST            4.90              1         0              Normal
  12/30/2025 09 PM PST            4.90              1         0              Normal
  12/30/2025 10 PM PST            4.90              1         0              Normal
  12/30/2025 11 PM PST            4.90              1         0              Normal
  12/31/2025 12 AM PST            4.90              1         0              Normal
  12/31/2025 01 AM PST            4.90              1         0              Normal
  12/31/2025 02 AM PST            4.90              1         0              Normal
  12/31/2025 03 AM PST            4.90              1         0              Normal
  12/31/2025 04 AM PST            4.90              1         0              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.