MCCLOUD RIVER - SHASTA LAKE (MSSC1)
Latitude: 40.95º NLongitude: 122.22º WElevation: 1100 Feet
Location: Shasta County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: Dec 26 2025 at 1:22 PM PSTNext Issuance: Dec 27 2025 at 9:00 AM PST
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: McCloud River - Above Shasta Lake (MSSC1)
#
# File Generation Time:  12/26/2025 at 01:25 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 12:00 PM PST
# Maximum Observed Stage:                       17.43 Feet
# Maximum Observed Flow:                        8687 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 02:00 PM PST
# Maximum Forecast Stage:                       15.91 Feet
# Maximum Forecast Flow:                        6334 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 01 PM PST           15.41           5633                Not Applicable
  12/21/2025 02 PM PST           15.88           6291         +      Not Applicable
  12/21/2025 03 PM PST           16.05           6538         +      Not Applicable
  12/21/2025 04 PM PST           16.22           6788         +      Not Applicable
  12/21/2025 05 PM PST           16.44           7118         +      Not Applicable
  12/21/2025 06 PM PST           16.44           7118         0      Not Applicable
  12/21/2025 07 PM PST           16.36           6997         -      Not Applicable
  12/21/2025 08 PM PST           16.19           6743         -      Not Applicable
  12/21/2025 09 PM PST           16.03           6509         -      Not Applicable
  12/21/2025 10 PM PST           15.98           6436         -      Not Applicable
  12/21/2025 11 PM PST           15.82           6205         -      Not Applicable
  12/22/2025 12 AM PST           15.62           5923         -      Not Applicable
  12/22/2025 01 AM PST           15.46           5701         -      Not Applicable
  12/22/2025 02 AM PST           15.28           5456         -      Not Applicable
  12/22/2025 03 AM PST           15.10           5215         -      Not Applicable
  12/22/2025 04 AM PST           14.92           4980         -      Not Applicable
  12/22/2025 05 AM PST           14.75           4761         -      Not Applicable
  12/22/2025 06 AM PST           14.58           4547         -      Not Applicable
  12/22/2025 07 AM PST           14.42           4349         -      Not Applicable
  12/22/2025 08 AM PST           14.26           4156         -      Not Applicable
  12/22/2025 09 AM PST           14.11           3978         -      Not Applicable
  12/22/2025 10 AM PST           13.97           3815         -      Not Applicable
  12/22/2025 11 AM PST           13.83           3655         -      Not Applicable
  12/22/2025 12 PM PST           13.71           3520         -      Not Applicable
  12/22/2025 01 PM PST           13.60           3399         -      Not Applicable
  12/22/2025 02 PM PST           13.49           3279         -      Not Applicable
  12/22/2025 03 PM PST           13.39           3171         -      Not Applicable
  12/22/2025 04 PM PST           13.29           3065         -      Not Applicable
  12/22/2025 05 PM PST           13.19           2962         -      Not Applicable
  12/22/2025 06 PM PST           13.10           2869         -      Not Applicable
  12/22/2025 07 PM PST           13.00           2768         -      Not Applicable
  12/22/2025 08 PM PST           12.91           2679         -      Not Applicable
  12/22/2025 09 PM PST           12.83           2600         -      Not Applicable
  12/22/2025 10 PM PST           12.76           2532         -      Not Applicable
  12/22/2025 11 PM PST           12.68           2456         -      Not Applicable
  12/23/2025 12 AM PST           12.61           2389         -      Not Applicable
  12/23/2025 01 AM PST           12.56           2342         -      Not Applicable
  12/23/2025 02 AM PST           12.52           2305         -      Not Applicable
  12/23/2025 03 AM PST           12.49           2278         -      Not Applicable
  12/23/2025 04 AM PST           12.46           2250         -      Not Applicable
  12/23/2025 05 AM PST           12.45           2241         -      Not Applicable
  12/23/2025 06 AM PST           12.47           2259         +      Not Applicable
  12/23/2025 07 AM PST           12.53           2315         +      Not Applicable
  12/23/2025 08 AM PST           12.58           2361         +      Not Applicable
  12/23/2025 09 AM PST           12.60           2380         +      Not Applicable
  12/23/2025 10 AM PST           12.59           2371         -      Not Applicable
  12/23/2025 11 AM PST           12.58           2361         -      Not Applicable
  12/23/2025 12 PM PST           12.57           2352         -      Not Applicable
  12/23/2025 01 PM PST           12.57           2352         0      Not Applicable
  12/23/2025 02 PM PST           12.57           2352         0      Not Applicable
  12/23/2025 03 PM PST           12.54           2324         -      Not Applicable
  12/23/2025 04 PM PST           12.51           2296         -      Not Applicable
  12/23/2025 05 PM PST           12.48           2268         -      Not Applicable
  12/23/2025 06 PM PST           12.45           2241         -      Not Applicable
  12/23/2025 07 PM PST           12.42           2213         -      Not Applicable
  12/23/2025 08 PM PST           12.39           2186         -      Not Applicable
  12/23/2025 09 PM PST           12.36           2159         -      Not Applicable
  12/23/2025 10 PM PST           12.34           2141         -      Not Applicable
  12/23/2025 11 PM PST           12.34           2141         0      Not Applicable
  12/24/2025 12 AM PST           12.40           2195         +      Not Applicable
  12/24/2025 01 AM PST           12.51           2296         +      Not Applicable
  12/24/2025 02 AM PST           12.69           2465         +      Not Applicable
  12/24/2025 03 AM PST           12.95           2718         +      Not Applicable
  12/24/2025 04 AM PST           13.32           3097         +      Not Applicable
  12/24/2025 05 AM PST           13.77           3587         +      Not Applicable
  12/24/2025 06 AM PST           14.30           4204         +      Not Applicable
  12/24/2025 07 AM PST           14.90           4954         +      Not Applicable
  12/24/2025 08 AM PST           15.49           5742         +      Not Applicable
  12/24/2025 09 AM PST           16.19           6743         +      Not Applicable
  12/24/2025 10 AM PST           16.47           7163         +      Not Applicable
  12/24/2025 11 AM PST           16.60           7362         +      Not Applicable
  12/24/2025 12 PM PST           16.65           7439         +      Not Applicable
  12/24/2025 01 PM PST           16.61           7377         -      Not Applicable
  12/24/2025 02 PM PST           16.50           7209         -      Not Applicable
  12/24/2025 03 PM PST           16.36           6997         -      Not Applicable
  12/24/2025 04 PM PST           16.19           6743         -      Not Applicable
  12/24/2025 05 PM PST           16.03           6509         -      Not Applicable
  12/24/2025 06 PM PST           15.95           6392         -      Not Applicable
  12/24/2025 07 PM PST           15.77           6134         -      Not Applicable
  12/24/2025 08 PM PST           15.60           5895         -      Not Applicable
  12/24/2025 09 PM PST           15.43           5660         -      Not Applicable
  12/24/2025 10 PM PST           15.31           5496         -      Not Applicable
  12/24/2025 11 PM PST           15.26           5429         -      Not Applicable
  12/25/2025 12 AM PST           15.26           5429         0      Not Applicable
  12/25/2025 01 AM PST           15.29           5469         +      Not Applicable
  12/25/2025 02 AM PST           15.33           5524         +      Not Applicable
  12/25/2025 03 AM PST           15.43           5660         +      Not Applicable
  12/25/2025 04 AM PST           15.52           5784         +      Not Applicable
  12/25/2025 05 AM PST           15.73           6077         +      Not Applicable
  12/25/2025 06 AM PST           16.05           6538         +      Not Applicable
  12/25/2025 07 AM PST           16.41           7072         +      Not Applicable
  12/25/2025 08 AM PST           16.71           7532         +      Not Applicable
  12/25/2025 09 AM PST           17.04           8052         +      Not Applicable
  12/25/2025 10 AM PST           17.26           8408         +      Not Applicable
  12/25/2025 11 AM PST           17.40           8637         +      Not Applicable
  12/25/2025 12 PM PST           17.43           8687         +      Not Applicable
  12/25/2025 01 PM PST           17.38           8604         -      Not Applicable
  12/25/2025 02 PM PST           17.36           8571         -      Not Applicable
  12/25/2025 03 PM PST           17.31           8489         -      Not Applicable
  12/25/2025 04 PM PST           17.24           8375         -      Not Applicable
  12/25/2025 05 PM PST           17.11           8164         -      Not Applicable
  12/25/2025 06 PM PST           17.06           8084         -      Not Applicable
  12/25/2025 07 PM PST           16.96           7925         -      Not Applicable
  12/25/2025 08 PM PST           16.88           7798         -      Not Applicable
  12/25/2025 09 PM PST           16.89           7814         +      Not Applicable
  12/25/2025 10 PM PST           16.89           7814         0      Not Applicable
  12/25/2025 11 PM PST           16.93           7877         +      Not Applicable
  12/26/2025 12 AM PST           16.99           7972         +      Not Applicable
  12/26/2025 01 AM PST           17.05           8068         +      Not Applicable
  12/26/2025 02 AM PST           17.03           8036         -      Not Applicable
  12/26/2025 03 AM PST           17.01           8004         -      Not Applicable
  12/26/2025 04 AM PST           16.96           7925         -      Not Applicable
  12/26/2025 05 AM PST           16.90           7830         -      Not Applicable
  12/26/2025 06 AM PST           16.77           7625         -      Not Applicable
  12/26/2025 07 AM PST           16.64           7424         -      Not Applicable
  12/26/2025 08 AM PST           16.53           7255         -      Not Applicable
  12/26/2025 09 AM PST           16.39           7042         -      Not Applicable
  12/26/2025 10 AM PST           16.25           6832         -      Not Applicable
  12/26/2025 11 AM PST           16.12           6640         -      Not Applicable
  12/26/2025 12 PM PST           16.04           6523         -      Not Applicable
  12/26/2025 01 PM PST           15.97           6421         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 02 PM PST           15.91           6334                Not Applicable
  12/26/2025 03 PM PST           15.84           6234         -      Not Applicable
  12/26/2025 04 PM PST           15.77           6134         -      Not Applicable
  12/26/2025 05 PM PST           15.79           6163         +      Not Applicable
  12/26/2025 06 PM PST           15.81           6191         +      Not Applicable
  12/26/2025 07 PM PST           15.83           6220         +      Not Applicable
  12/26/2025 08 PM PST           15.85           6248         +      Not Applicable
  12/26/2025 09 PM PST           15.87           6277         +      Not Applicable
  12/26/2025 10 PM PST           15.89           6306         +      Not Applicable
  12/26/2025 11 PM PST           15.87           6277         -      Not Applicable
  12/27/2025 12 AM PST           15.85           6248         -      Not Applicable
  12/27/2025 01 AM PST           15.82           6205         -      Not Applicable
  12/27/2025 02 AM PST           15.80           6177         -      Not Applicable
  12/27/2025 03 AM PST           15.79           6163         -      Not Applicable
  12/27/2025 04 AM PST           15.77           6134         -      Not Applicable
  12/27/2025 05 AM PST           15.66           5979         -      Not Applicable
  12/27/2025 06 AM PST           15.55           5825         -      Not Applicable
  12/27/2025 07 AM PST           15.44           5674         -      Not Applicable
  12/27/2025 08 AM PST           15.32           5510         -      Not Applicable
  12/27/2025 09 AM PST           15.20           5348         -      Not Applicable
  12/27/2025 10 AM PST           15.08           5189         -      Not Applicable
  12/27/2025 11 AM PST           14.95           5019         -      Not Applicable
  12/27/2025 12 PM PST           14.81           4838         -      Not Applicable
  12/27/2025 01 PM PST           14.68           4673         -      Not Applicable
  12/27/2025 02 PM PST           14.54           4497         -      Not Applicable
  12/27/2025 03 PM PST           14.39           4313         -      Not Applicable
  12/27/2025 04 PM PST           14.24           4132         -      Not Applicable
  12/27/2025 05 PM PST           14.14           4013         -      Not Applicable
  12/27/2025 06 PM PST           14.03           3885         -      Not Applicable
  12/27/2025 07 PM PST           13.92           3758         -      Not Applicable
  12/27/2025 08 PM PST           13.81           3632         -      Not Applicable
  12/27/2025 09 PM PST           13.70           3509         -      Not Applicable
  12/27/2025 10 PM PST           13.59           3388         -      Not Applicable
  12/27/2025 11 PM PST           13.52           3312         -      Not Applicable
  12/28/2025 12 AM PST           13.44           3225         -      Not Applicable
  12/28/2025 01 AM PST           13.37           3150         -      Not Applicable
  12/28/2025 02 AM PST           13.30           3076         -      Not Applicable
  12/28/2025 03 AM PST           13.23           3003         -      Not Applicable
  12/28/2025 04 AM PST           13.15           2920         -      Not Applicable
  12/28/2025 05 AM PST           13.11           2879         -      Not Applicable
  12/28/2025 06 AM PST           13.07           2838         -      Not Applicable
  12/28/2025 07 AM PST           13.03           2798         -      Not Applicable
  12/28/2025 08 AM PST           12.99           2758         -      Not Applicable
  12/28/2025 09 AM PST           12.94           2708         -      Not Applicable
  12/28/2025 10 AM PST           12.90           2669         -      Not Applicable
  12/28/2025 11 AM PST           12.88           2649         -      Not Applicable
  12/28/2025 12 PM PST           12.85           2620         -      Not Applicable
  12/28/2025 01 PM PST           12.82           2590         -      Not Applicable
  12/28/2025 02 PM PST           12.80           2571         -      Not Applicable
  12/28/2025 03 PM PST           12.77           2542         -      Not Applicable
  12/28/2025 04 PM PST           12.74           2513         -      Not Applicable
  12/28/2025 05 PM PST           12.72           2494         -      Not Applicable
  12/28/2025 06 PM PST           12.70           2475         -      Not Applicable
  12/28/2025 07 PM PST           12.67           2446         -      Not Applicable
  12/28/2025 08 PM PST           12.65           2427         -      Not Applicable
  12/28/2025 09 PM PST           12.63           2408         -      Not Applicable
  12/28/2025 10 PM PST           12.60           2380         -      Not Applicable
  12/28/2025 11 PM PST           12.58           2361         -      Not Applicable
  12/29/2025 12 AM PST           12.56           2342         -      Not Applicable
  12/29/2025 01 AM PST           12.54           2324         -      Not Applicable
  12/29/2025 02 AM PST           12.52           2305         -      Not Applicable
  12/29/2025 03 AM PST           12.49           2278         -      Not Applicable
  12/29/2025 04 AM PST           12.47           2259         -      Not Applicable
  12/29/2025 05 AM PST           12.45           2241         -      Not Applicable
  12/29/2025 06 AM PST           12.43           2222         -      Not Applicable
  12/29/2025 07 AM PST           12.41           2204         -      Not Applicable
  12/29/2025 08 AM PST           12.39           2186         -      Not Applicable
  12/29/2025 09 AM PST           12.37           2168         -      Not Applicable
  12/29/2025 10 AM PST           12.34           2141         -      Not Applicable
  12/29/2025 11 AM PST           12.32           2123         -      Not Applicable
  12/29/2025 12 PM PST           12.30           2105         -      Not Applicable
  12/29/2025 01 PM PST           12.28           2087         -      Not Applicable
  12/29/2025 02 PM PST           12.26           2069         -      Not Applicable
  12/29/2025 03 PM PST           12.24           2052         -      Not Applicable
  12/29/2025 04 PM PST           12.22           2034         -      Not Applicable
  12/29/2025 05 PM PST           12.20           2017         -      Not Applicable
  12/29/2025 06 PM PST           12.18           2000         -      Not Applicable
  12/29/2025 07 PM PST           12.16           1982         -      Not Applicable
  12/29/2025 08 PM PST           12.14           1965         -      Not Applicable
  12/29/2025 09 PM PST           12.12           1948         -      Not Applicable
  12/29/2025 10 PM PST           12.10           1931         -      Not Applicable
  12/29/2025 11 PM PST           12.09           1922         -      Not Applicable
  12/30/2025 12 AM PST           12.07           1905         -      Not Applicable
  12/30/2025 01 AM PST           12.05           1888         -      Not Applicable
  12/30/2025 02 AM PST           12.03           1871         -      Not Applicable
  12/30/2025 03 AM PST           12.01           1854         -      Not Applicable
  12/30/2025 04 AM PST           11.99           1838         -      Not Applicable
  12/30/2025 05 AM PST           11.97           1821         -      Not Applicable
  12/30/2025 06 AM PST           11.96           1812         -      Not Applicable
  12/30/2025 07 AM PST           11.94           1796         -      Not Applicable
  12/30/2025 08 AM PST           11.92           1779         -      Not Applicable
  12/30/2025 09 AM PST           11.90           1763         -      Not Applicable
  12/30/2025 10 AM PST           11.88           1746         -      Not Applicable
  12/30/2025 11 AM PST           11.86           1730         -      Not Applicable
  12/30/2025 12 PM PST           11.85           1722         -      Not Applicable
  12/30/2025 01 PM PST           11.83           1705         -      Not Applicable
  12/30/2025 02 PM PST           11.81           1689         -      Not Applicable
  12/30/2025 03 PM PST           11.79           1673         -      Not Applicable
  12/30/2025 04 PM PST           11.77           1657         -      Not Applicable
  12/30/2025 05 PM PST           11.76           1649         -      Not Applicable
  12/30/2025 06 PM PST           11.74           1633         -      Not Applicable
  12/30/2025 07 PM PST           11.72           1617         -      Not Applicable
  12/30/2025 08 PM PST           11.70           1601         -      Not Applicable
  12/30/2025 09 PM PST           11.69           1593         -      Not Applicable
  12/30/2025 10 PM PST           11.67           1577         -      Not Applicable
  12/30/2025 11 PM PST           11.65           1562         -      Not Applicable
  12/31/2025 12 AM PST           11.64           1554         -      Not Applicable
  12/31/2025 01 AM PST           11.62           1538         -      Not Applicable
  12/31/2025 02 AM PST           11.60           1523         -      Not Applicable
  12/31/2025 03 AM PST           11.59           1515         -      Not Applicable
  12/31/2025 04 AM PST           11.57           1500         -      Not Applicable
#
# 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.