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WEST WALKER RIVER - BELOW LITTLE WALKER RIVER NEAR COLEVILLE (WWBC1)
| Latitude: 38.38º N | Longitude: 119.45º W | Elevation: 6591 Feet | | Forecast Type: Official Location |
| Location: Mono County in California | Bulletin Group: Eastern Sierra | River Group: Eastern Sierra |
| Issuance Time: | Jul 21 2026 at 7:37 AM PDT | Next Issuance: | Jul 22 2026 at 9:00 AM PDT
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| Action/Monitor: 5.5 Feet | Minor Flood: 6.0 Feet | Moderate Flood: 6.8 Feet | Major Flood: 7.3 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: West Walker River - Blo Ltl Walker Nr Coleville (WWBC1)
#
# File Generation Time: 07/21/2026 at 07:38 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/16/2026 at 11:00 AM PDT
# Maximum Observed Stage: 1.60 Feet
# Maximum Observed Flow: 141 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/21/2026 at 05:00 PM PDT
# Maximum Forecast Stage: 1.52 Feet
# Maximum Forecast Flow: 127 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/16/2026 07 AM PDT 1.59 140 Normal
07/16/2026 08 AM PDT 1.60 141 + Normal
07/16/2026 09 AM PDT 1.60 141 0 Normal
07/16/2026 10 AM PDT 1.58 138 - Normal
07/16/2026 11 AM PDT 1.60 141 + Normal
07/16/2026 12 PM PDT 1.59 140 - Normal
07/16/2026 01 PM PDT 1.59 140 0 Normal
07/16/2026 02 PM PDT 1.57 136 - Normal
07/16/2026 03 PM PDT 1.57 136 0 Normal
07/16/2026 04 PM PDT 1.57 136 0 Normal
07/16/2026 05 PM PDT 1.56 134 - Normal
07/16/2026 06 PM PDT 1.54 131 - Normal
07/16/2026 07 PM PDT 1.53 129 - Normal
07/16/2026 08 PM PDT 1.52 127 - Normal
07/16/2026 09 PM PDT 1.51 126 - Normal
07/16/2026 10 PM PDT 1.50 124 - Normal
07/16/2026 11 PM PDT 1.51 126 + Normal
07/17/2026 12 AM PDT 1.52 127 + Normal
07/17/2026 01 AM PDT 1.52 127 0 Normal
07/17/2026 02 AM PDT 1.52 127 0 Normal
07/17/2026 03 AM PDT 1.52 127 0 Normal
07/17/2026 04 AM PDT 1.52 127 0 Normal
07/17/2026 05 AM PDT 1.53 129 + Normal
07/17/2026 06 AM PDT 1.53 129 0 Normal
07/17/2026 07 AM PDT 1.53 129 0 Normal
07/17/2026 08 AM PDT 1.53 129 0 Normal
07/17/2026 09 AM PDT 1.52 127 - Normal
07/17/2026 10 AM PDT 1.53 129 + Normal
07/17/2026 11 AM PDT 1.54 131 + Normal
07/17/2026 12 PM PDT 1.53 129 - Normal
07/17/2026 01 PM PDT 1.53 129 0 Normal
07/17/2026 02 PM PDT 1.52 127 - Normal
07/17/2026 03 PM PDT 1.52 127 0 Normal
07/17/2026 04 PM PDT 1.51 126 - Normal
07/17/2026 05 PM PDT 1.50 124 - Normal
07/17/2026 06 PM PDT 1.48 120 - Normal
07/17/2026 07 PM PDT 1.48 120 0 Normal
07/17/2026 08 PM PDT 1.47 119 - Normal
07/17/2026 09 PM PDT 1.47 119 0 Normal
07/17/2026 10 PM PDT 1.47 119 0 Normal
07/17/2026 11 PM PDT 1.46 117 - Normal
07/18/2026 12 AM PDT 1.46 117 0 Normal
07/18/2026 01 AM PDT 1.47 119 + Normal
07/18/2026 02 AM PDT 1.47 119 0 Normal
07/18/2026 03 AM PDT 1.47 119 0 Normal
07/18/2026 04 AM PDT 1.47 119 0 Normal
07/18/2026 05 AM PDT 1.49 122 + Normal
07/18/2026 06 AM PDT 1.48 120 - Normal
07/18/2026 07 AM PDT 1.49 122 + Normal
07/18/2026 08 AM PDT 1.50 124 + Normal
07/18/2026 09 AM PDT 1.49 122 - Normal
07/18/2026 10 AM PDT 1.49 122 0 Normal
07/18/2026 11 AM PDT 1.49 122 0 Normal
07/18/2026 12 PM PDT 1.50 124 + Normal
07/18/2026 01 PM PDT 1.49 122 - Normal
07/18/2026 02 PM PDT 1.48 120 - Normal
07/18/2026 03 PM PDT 1.49 122 + Normal
07/18/2026 04 PM PDT 1.48 120 - Normal
07/18/2026 05 PM PDT 1.47 119 - Normal
07/18/2026 06 PM PDT 1.46 117 - Normal
07/18/2026 07 PM PDT 1.44 114 - Normal
07/18/2026 08 PM PDT 1.44 114 0 Normal
07/18/2026 09 PM PDT 1.44 114 0 Normal
07/18/2026 10 PM PDT 1.43 112 - Normal
07/18/2026 11 PM PDT 1.44 114 + Normal
07/19/2026 12 AM PDT 1.42 111 - Normal
07/19/2026 01 AM PDT 1.44 114 + Normal
07/19/2026 02 AM PDT 1.44 114 0 Normal
07/19/2026 03 AM PDT 1.44 114 0 Normal
07/19/2026 04 AM PDT 1.44 114 0 Normal
07/19/2026 05 AM PDT 1.46 117 + Normal
07/19/2026 06 AM PDT 1.46 117 0 Normal
07/19/2026 07 AM PDT 1.46 117 0 Normal
07/19/2026 08 AM PDT 1.45 116 - Normal
07/19/2026 09 AM PDT 1.47 119 + Normal
07/19/2026 10 AM PDT 1.47 119 0 Normal
07/19/2026 11 AM PDT 1.46 117 - Normal
07/19/2026 12 PM PDT 1.46 117 0 Normal
07/19/2026 01 PM PDT 1.46 117 0 Normal
07/19/2026 02 PM PDT 1.46 117 0 Normal
07/19/2026 03 PM PDT 1.46 117 0 Normal
07/19/2026 04 PM PDT 1.46 117 0 Normal
07/19/2026 05 PM PDT 1.47 119 + Normal
07/19/2026 06 PM PDT 1.46 117 - Normal
07/19/2026 07 PM PDT 1.45 116 - Normal
07/19/2026 08 PM PDT 1.46 117 + Normal
07/19/2026 09 PM PDT 1.45 116 - Normal
07/19/2026 10 PM PDT 1.46 117 + Normal
07/19/2026 11 PM PDT 1.45 116 - Normal
07/20/2026 12 AM PDT 1.45 116 0 Normal
07/20/2026 01 AM PDT 1.46 117 + Normal
07/20/2026 02 AM PDT 1.46 117 0 Normal
07/20/2026 03 AM PDT 1.46 117 0 Normal
07/20/2026 04 AM PDT 1.46 117 0 Normal
07/20/2026 05 AM PDT 1.45 116 - Normal
07/20/2026 06 AM PDT 1.46 117 + Normal
07/20/2026 07 AM PDT 1.46 117 0 Normal
07/20/2026 08 AM PDT 1.46 117 0 Normal
07/20/2026 09 AM PDT 1.46 117 0 Normal
07/20/2026 10 AM PDT 1.46 117 0 Normal
07/20/2026 11 AM PDT 1.46 117 0 Normal
07/20/2026 12 PM PDT 1.46 117 0 Normal
07/20/2026 01 PM PDT 1.46 117 0 Normal
07/20/2026 02 PM PDT 1.45 116 - Normal
07/20/2026 03 PM PDT 1.46 117 + Normal
07/20/2026 04 PM PDT 1.46 117 0 Normal
07/20/2026 05 PM PDT 1.45 116 - Normal
07/20/2026 06 PM PDT 1.45 116 0 Normal
07/20/2026 07 PM PDT 1.45 116 0 Normal
07/20/2026 08 PM PDT 1.45 116 0 Normal
07/20/2026 09 PM PDT 1.46 117 + Normal
07/20/2026 10 PM PDT 1.45 116 - Normal
07/20/2026 11 PM PDT 1.46 117 + Normal
07/21/2026 12 AM PDT 1.45 116 - Normal
07/21/2026 01 AM PDT 1.46 117 + Normal
07/21/2026 02 AM PDT 1.47 119 + Normal
07/21/2026 03 AM PDT 1.46 117 - Normal
07/21/2026 04 AM PDT 1.46 117 0 Normal
07/21/2026 05 AM PDT 1.47 119 + Normal
07/21/2026 06 AM PDT 1.46 117 - Normal
07/21/2026 07 AM PDT 1.46 117 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/21/2026 08 AM PDT 1.45 116 Normal
07/21/2026 09 AM PDT 1.45 116 0 Normal
07/21/2026 10 AM PDT 1.44 114 - Normal
07/21/2026 11 AM PDT 1.43 112 - Normal
07/21/2026 12 PM PDT 1.45 116 + Normal
07/21/2026 01 PM PDT 1.46 117 + Normal
07/21/2026 02 PM PDT 1.47 119 + Normal
07/21/2026 03 PM PDT 1.49 122 + Normal
07/21/2026 04 PM PDT 1.50 124 + Normal
07/21/2026 05 PM PDT 1.52 127 + Normal
07/21/2026 06 PM PDT 1.51 126 - Normal
07/21/2026 07 PM PDT 1.50 124 - Normal
07/21/2026 08 PM PDT 1.48 120 - Normal
07/21/2026 09 PM PDT 1.47 119 - Normal
07/21/2026 10 PM PDT 1.46 117 - Normal
07/21/2026 11 PM PDT 1.45 116 - Normal
07/22/2026 12 AM PDT 1.44 114 - Normal
07/22/2026 01 AM PDT 1.43 112 - Normal
07/22/2026 02 AM PDT 1.42 111 - Normal
07/22/2026 03 AM PDT 1.40 108 - Normal
07/22/2026 04 AM PDT 1.39 106 - Normal
07/22/2026 05 AM PDT 1.38 105 - Normal
07/22/2026 06 AM PDT 1.37 103 - Normal
07/22/2026 07 AM PDT 1.37 103 0 Normal
07/22/2026 08 AM PDT 1.37 103 0 Normal
07/22/2026 09 AM PDT 1.36 102 - Normal
07/22/2026 10 AM PDT 1.36 102 0 Normal
07/22/2026 11 AM PDT 1.36 102 0 Normal
07/22/2026 12 PM PDT 1.35 100 - Normal
07/22/2026 01 PM PDT 1.35 100 0 Normal
07/22/2026 02 PM PDT 1.35 100 0 Normal
07/22/2026 03 PM PDT 1.34 99 - Normal
07/22/2026 04 PM PDT 1.34 99 0 Normal
07/22/2026 05 PM PDT 1.34 99 0 Normal
07/22/2026 06 PM PDT 1.34 99 0 Normal
07/22/2026 07 PM PDT 1.34 99 0 Normal
07/22/2026 08 PM PDT 1.34 99 0 Normal
07/22/2026 09 PM PDT 1.34 99 0 Normal
07/22/2026 10 PM PDT 1.34 99 0 Normal
07/22/2026 11 PM PDT 1.34 99 0 Normal
07/23/2026 12 AM PDT 1.34 99 0 Normal
07/23/2026 01 AM PDT 1.34 99 0 Normal
07/23/2026 02 AM PDT 1.34 99 0 Normal
07/23/2026 03 AM PDT 1.34 99 0 Normal
07/23/2026 04 AM PDT 1.33 97 - Normal
07/23/2026 05 AM PDT 1.33 97 0 Normal
07/23/2026 06 AM PDT 1.33 97 0 Normal
07/23/2026 07 AM PDT 1.33 97 0 Normal
07/23/2026 08 AM PDT 1.32 96 - Normal
07/23/2026 09 AM PDT 1.32 96 0 Normal
07/23/2026 10 AM PDT 1.32 96 0 Normal
07/23/2026 11 AM PDT 1.32 96 0 Normal
07/23/2026 12 PM PDT 1.31 94 - Normal
07/23/2026 01 PM PDT 1.31 94 0 Normal
07/23/2026 02 PM PDT 1.31 94 0 Normal
07/23/2026 03 PM PDT 1.30 93 - Normal
07/23/2026 04 PM PDT 1.30 93 0 Normal
07/23/2026 05 PM PDT 1.30 93 0 Normal
07/23/2026 06 PM PDT 1.30 93 0 Normal
07/23/2026 07 PM PDT 1.30 93 0 Normal
07/23/2026 08 PM PDT 1.30 93 0 Normal
07/23/2026 09 PM PDT 1.30 93 0 Normal
07/23/2026 10 PM PDT 1.30 93 0 Normal
07/23/2026 11 PM PDT 1.30 93 0 Normal
07/24/2026 12 AM PDT 1.30 93 0 Normal
07/24/2026 01 AM PDT 1.30 93 0 Normal
07/24/2026 02 AM PDT 1.30 93 0 Normal
07/24/2026 03 AM PDT 1.30 93 0 Normal
07/24/2026 04 AM PDT 1.30 93 0 Normal
07/24/2026 05 AM PDT 1.29 92 - Normal
07/24/2026 06 AM PDT 1.29 92 0 Normal
07/24/2026 07 AM PDT 1.29 92 0 Normal
07/24/2026 08 AM PDT 1.29 92 0 Normal
07/24/2026 09 AM PDT 1.28 90 - Normal
07/24/2026 10 AM PDT 1.28 90 0 Normal
07/24/2026 11 AM PDT 1.28 90 0 Normal
07/24/2026 12 PM PDT 1.28 90 0 Normal
07/24/2026 01 PM PDT 1.27 89 - Normal
07/24/2026 02 PM PDT 1.27 89 0 Normal
07/24/2026 03 PM PDT 1.27 89 0 Normal
07/24/2026 04 PM PDT 1.27 89 0 Normal
07/24/2026 05 PM PDT 1.26 87 - Normal
07/24/2026 06 PM PDT 1.26 87 0 Normal
07/24/2026 07 PM PDT 1.26 87 0 Normal
07/24/2026 08 PM PDT 1.26 87 0 Normal
07/24/2026 09 PM PDT 1.26 87 0 Normal
07/24/2026 10 PM PDT 1.26 87 0 Normal
07/24/2026 11 PM PDT 1.26 87 0 Normal
07/25/2026 12 AM PDT 1.26 87 0 Normal
07/25/2026 01 AM PDT 1.26 87 0 Normal
07/25/2026 02 AM PDT 1.26 87 0 Normal
07/25/2026 03 AM PDT 1.26 87 0 Normal
07/25/2026 04 AM PDT 1.26 87 0 Normal
07/25/2026 05 AM PDT 1.26 87 0 Normal
07/25/2026 06 AM PDT 1.26 87 0 Normal
07/25/2026 07 AM PDT 1.25 86 - Normal
07/25/2026 08 AM PDT 1.25 86 0 Normal
07/25/2026 09 AM PDT 1.25 86 0 Normal
07/25/2026 10 AM PDT 1.25 86 0 Normal
07/25/2026 11 AM PDT 1.24 85 - Normal
07/25/2026 12 PM PDT 1.24 85 0 Normal
07/25/2026 01 PM PDT 1.24 85 0 Normal
07/25/2026 02 PM PDT 1.23 84 - Normal
07/25/2026 03 PM PDT 1.23 84 0 Normal
07/25/2026 04 PM PDT 1.23 84 0 Normal
07/25/2026 05 PM PDT 1.23 84 0 Normal
07/25/2026 06 PM PDT 1.23 84 0 Normal
07/25/2026 07 PM PDT 1.23 84 0 Normal
07/25/2026 08 PM PDT 1.23 84 0 Normal
07/25/2026 09 PM PDT 1.23 84 0 Normal
07/25/2026 10 PM PDT 1.23 84 0 Normal
07/25/2026 11 PM PDT 1.23 84 0 Normal
07/26/2026 12 AM PDT 1.23 84 0 Normal
07/26/2026 01 AM PDT 1.23 84 0 Normal
07/26/2026 02 AM PDT 1.22 82 - Normal
07/26/2026 03 AM PDT 1.22 82 0 Normal
07/26/2026 04 AM PDT 1.22 82 0 Normal
07/26/2026 05 AM PDT 1.22 82 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.
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