*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
Significant losses can occur in the Mason Valley upstream of the Mason stream gage. Increased forecast uncertainty exists in the long range forecast due to these unknown losses.
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Walker River - Mason at Snyder Lane (MASN2)
#
# File Generation Time: 06/16/2025 at 06:18 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/11/2025 at 02:00 PM PDT
# Maximum Observed Stage: 5.07 Feet
# Maximum Observed Flow: 336 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/16/2025 at 07:00 AM PDT
# Maximum Forecast Stage: 4.39 Feet
# Maximum Forecast Flow: 175 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/11/2025 06 AM PDT 5.06 334 Normal
06/11/2025 07 AM PDT 5.06 334 0 Normal
06/11/2025 08 AM PDT 5.06 334 0 Normal
06/11/2025 09 AM PDT 5.06 334 0 Normal
06/11/2025 10 AM PDT 5.06 334 0 Normal
06/11/2025 11 AM PDT 5.06 334 0 Normal
06/11/2025 12 PM PDT 5.07 336 + Normal
06/11/2025 01 PM PDT 5.07 336 0 Normal
06/11/2025 02 PM PDT 5.07 336 0 Normal
06/11/2025 03 PM PDT 5.06 334 - Normal
06/11/2025 04 PM PDT 5.04 328 - Normal
06/11/2025 05 PM PDT 5.03 325 - Normal
06/11/2025 06 PM PDT 5.03 325 0 Normal
06/11/2025 07 PM PDT 5.02 323 - Normal
06/11/2025 08 PM PDT 5.01 320 - Normal
06/11/2025 09 PM PDT 5.01 320 0 Normal
06/11/2025 10 PM PDT 5.00 317 - Normal
06/11/2025 11 PM PDT 4.99 315 - Normal
06/12/2025 12 AM PDT 4.99 315 0 Normal
06/12/2025 01 AM PDT 5.00 317 + Normal
06/12/2025 02 AM PDT 5.01 320 + Normal
06/12/2025 03 AM PDT 5.02 323 + Normal
06/12/2025 04 AM PDT 5.01 320 - Normal
06/12/2025 05 AM PDT 5.00 317 - Normal
06/12/2025 06 AM PDT 5.00 317 0 Normal
06/12/2025 07 AM PDT 5.00 317 0 Normal
06/12/2025 08 AM PDT 5.00 317 0 Normal
06/12/2025 09 AM PDT 5.00 317 0 Normal
06/12/2025 10 AM PDT 5.00 317 0 Normal
06/12/2025 11 AM PDT 4.98 312 - Normal
06/12/2025 12 PM PDT 4.95 304 - Normal
06/12/2025 01 PM PDT 4.94 302 - Normal
06/12/2025 02 PM PDT 4.92 296 - Normal
06/12/2025 03 PM PDT 4.92 296 0 Normal
06/12/2025 04 PM PDT 4.91 294 - Normal
06/12/2025 05 PM PDT 4.90 291 - Normal
06/12/2025 06 PM PDT 4.90 291 0 Normal
06/12/2025 07 PM PDT 4.89 289 - Normal
06/12/2025 08 PM PDT 4.88 286 - Normal
06/12/2025 09 PM PDT 4.88 286 0 Normal
06/12/2025 10 PM PDT 4.88 286 0 Normal
06/12/2025 11 PM PDT 4.87 284 - Normal
06/13/2025 12 AM PDT 4.88 286 + Normal
06/13/2025 01 AM PDT 4.88 286 0 Normal
06/13/2025 02 AM PDT 4.88 286 0 Normal
06/13/2025 03 AM PDT 4.87 284 - Normal
06/13/2025 04 AM PDT 4.88 286 + Normal
06/13/2025 05 AM PDT 4.87 284 - Normal
06/13/2025 06 AM PDT 4.87 284 0 Normal
06/13/2025 07 AM PDT 4.88 286 + Normal
06/13/2025 08 AM PDT 4.89 289 + Normal
06/13/2025 09 AM PDT 4.89 289 0 Normal
06/13/2025 10 AM PDT 4.89 289 0 Normal
06/13/2025 11 AM PDT 4.90 291 + Normal
06/13/2025 12 PM PDT 4.90 291 0 Normal
06/13/2025 01 PM PDT 4.90 291 0 Normal
06/13/2025 02 PM PDT 4.89 289 - Normal
06/13/2025 03 PM PDT 4.89 289 0 Normal
06/13/2025 04 PM PDT 4.89 289 0 Normal
06/13/2025 05 PM PDT 4.90 291 + Normal
06/13/2025 06 PM PDT 4.91 294 + Normal
06/13/2025 07 PM PDT 4.89 289 - Normal
06/13/2025 08 PM PDT 4.90 291 + Normal
06/13/2025 09 PM PDT 4.90 291 0 Normal
06/13/2025 10 PM PDT 4.89 289 - Normal
06/13/2025 11 PM PDT 4.90 291 + Normal
06/14/2025 12 AM PDT 4.90 291 0 Normal
06/14/2025 01 AM PDT 4.89 289 - Normal
06/14/2025 02 AM PDT 4.89 289 0 Normal
06/14/2025 03 AM PDT 4.90 291 + Normal
06/14/2025 04 AM PDT 4.89 289 - Normal
06/14/2025 05 AM PDT 4.90 291 + Normal
06/14/2025 06 AM PDT 4.89 289 - Normal
06/14/2025 07 AM PDT 4.89 289 0 Normal
06/14/2025 08 AM PDT 4.89 289 0 Normal
06/14/2025 09 AM PDT 4.89 289 0 Normal
06/14/2025 10 AM PDT 4.90 291 + Normal
06/14/2025 11 AM PDT 4.89 289 - Normal
06/14/2025 12 PM PDT 4.89 289 0 Normal
06/14/2025 01 PM PDT 4.89 289 0 Normal
06/14/2025 02 PM PDT 4.88 286 - Normal
06/14/2025 03 PM PDT 4.87 284 - Normal
06/14/2025 04 PM PDT 4.87 284 0 Normal
06/14/2025 05 PM PDT 4.86 281 - Normal
06/14/2025 06 PM PDT 4.84 276 - Normal
06/14/2025 07 PM PDT 4.83 274 - Normal
06/14/2025 08 PM PDT 4.82 271 - Normal
06/14/2025 09 PM PDT 4.82 271 0 Normal
06/14/2025 10 PM PDT 4.81 269 - Normal
06/14/2025 11 PM PDT 4.80 266 - Normal
06/15/2025 12 AM PDT 4.80 266 0 Normal
06/15/2025 01 AM PDT 4.79 264 - Normal
06/15/2025 02 AM PDT 4.79 264 0 Normal
06/15/2025 03 AM PDT 4.80 266 + Normal
06/15/2025 04 AM PDT 4.78 261 - Normal
06/15/2025 05 AM PDT 4.75 254 - Normal
06/15/2025 06 AM PDT 4.71 245 - Normal
06/15/2025 07 AM PDT 4.67 235 - Normal
06/15/2025 08 AM PDT 4.62 224 - Normal
06/15/2025 09 AM PDT 4.59 217 - Normal
06/15/2025 10 AM PDT 4.57 213 - Normal
06/15/2025 11 AM PDT 4.54 206 - Normal
06/15/2025 12 PM PDT 4.52 202 - Normal
06/15/2025 01 PM PDT 4.51 200 - Normal
06/15/2025 02 PM PDT 4.50 197 - Normal
06/15/2025 03 PM PDT 4.48 193 - Normal
06/15/2025 04 PM PDT 4.47 191 - Normal
06/15/2025 05 PM PDT 4.46 189 - Normal
06/15/2025 06 PM PDT 4.45 187 - Normal
06/15/2025 07 PM PDT 4.43 183 - Normal
06/15/2025 08 PM PDT 4.42 181 - Normal
06/15/2025 09 PM PDT 4.42 181 0 Normal
06/15/2025 10 PM PDT 4.41 179 - Normal
06/15/2025 11 PM PDT 4.40 177 - Normal
06/16/2025 12 AM PDT 4.40 177 0 Normal
06/16/2025 01 AM PDT 4.39 175 - Normal
06/16/2025 02 AM PDT 4.39 175 0 Normal
06/16/2025 03 AM PDT 4.39 175 0 Normal
06/16/2025 04 AM PDT 4.39 175 0 Normal
06/16/2025 05 AM PDT 4.39 175 0 Normal
06/16/2025 06 AM PDT 4.39 175 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/16/2025 07 AM PDT 4.39 175 Normal
06/16/2025 08 AM PDT 4.39 175 0 Normal
06/16/2025 09 AM PDT 4.39 175 0 Normal
06/16/2025 10 AM PDT 4.39 175 0 Normal
06/16/2025 11 AM PDT 4.39 175 0 Normal
06/16/2025 12 PM PDT 4.39 175 0 Normal
06/16/2025 01 PM PDT 4.39 175 0 Normal
06/16/2025 02 PM PDT 4.39 175 0 Normal
06/16/2025 03 PM PDT 4.39 175 0 Normal
06/16/2025 04 PM PDT 4.39 175 0 Normal
06/16/2025 05 PM PDT 4.39 175 0 Normal
06/16/2025 06 PM PDT 4.39 175 0 Normal
06/16/2025 07 PM PDT 4.39 175 0 Normal
06/16/2025 08 PM PDT 4.39 175 0 Normal
06/16/2025 09 PM PDT 4.39 175 0 Normal
06/16/2025 10 PM PDT 4.39 175 0 Normal
06/16/2025 11 PM PDT 4.39 175 0 Normal
06/17/2025 12 AM PDT 4.39 175 0 Normal
06/17/2025 01 AM PDT 4.39 175 0 Normal
06/17/2025 02 AM PDT 4.39 175 0 Normal
06/17/2025 03 AM PDT 4.39 175 0 Normal
06/17/2025 04 AM PDT 4.39 175 0 Normal
06/17/2025 05 AM PDT 4.39 175 0 Normal
06/17/2025 06 AM PDT 4.39 175 0 Normal
06/17/2025 07 AM PDT 4.39 175 0 Normal
06/17/2025 08 AM PDT 4.39 175 0 Normal
06/17/2025 09 AM PDT 4.39 175 0 Normal
06/17/2025 10 AM PDT 4.39 175 0 Normal
06/17/2025 11 AM PDT 4.39 175 0 Normal
06/17/2025 12 PM PDT 4.39 175 0 Normal
06/17/2025 01 PM PDT 4.39 175 0 Normal
06/17/2025 02 PM PDT 4.39 175 0 Normal
06/17/2025 03 PM PDT 4.39 175 0 Normal
06/17/2025 04 PM PDT 4.39 175 0 Normal
06/17/2025 05 PM PDT 4.39 175 0 Normal
06/17/2025 06 PM PDT 4.38 173 - Normal
06/17/2025 07 PM PDT 4.38 173 0 Normal
06/17/2025 08 PM PDT 4.38 173 0 Normal
06/17/2025 09 PM PDT 4.38 173 0 Normal
06/17/2025 10 PM PDT 4.38 173 0 Normal
06/17/2025 11 PM PDT 4.38 173 0 Normal
06/18/2025 12 AM PDT 4.38 173 0 Normal
06/18/2025 01 AM PDT 4.38 173 0 Normal
06/18/2025 02 AM PDT 4.38 173 0 Normal
06/18/2025 03 AM PDT 4.38 173 0 Normal
06/18/2025 04 AM PDT 4.38 173 0 Normal
06/18/2025 05 AM PDT 4.38 173 0 Normal
06/18/2025 06 AM PDT 4.38 173 0 Normal
06/18/2025 07 AM PDT 4.38 173 0 Normal
06/18/2025 08 AM PDT 4.38 173 0 Normal
06/18/2025 09 AM PDT 4.38 173 0 Normal
06/18/2025 10 AM PDT 4.38 173 0 Normal
06/18/2025 11 AM PDT 4.38 173 0 Normal
06/18/2025 12 PM PDT 4.38 173 0 Normal
06/18/2025 01 PM PDT 4.38 173 0 Normal
06/18/2025 02 PM PDT 4.38 173 0 Normal
06/18/2025 03 PM PDT 4.38 173 0 Normal
06/18/2025 04 PM PDT 4.38 173 0 Normal
06/18/2025 05 PM PDT 4.38 173 0 Normal
06/18/2025 06 PM PDT 4.37 171 - Normal
06/18/2025 07 PM PDT 4.37 171 0 Normal
06/18/2025 08 PM PDT 4.37 171 0 Normal
06/18/2025 09 PM PDT 4.37 171 0 Normal
06/18/2025 10 PM PDT 4.37 171 0 Normal
06/18/2025 11 PM PDT 4.37 171 0 Normal
06/19/2025 12 AM PDT 4.37 171 0 Normal
06/19/2025 01 AM PDT 4.37 171 0 Normal
06/19/2025 02 AM PDT 4.37 171 0 Normal
06/19/2025 03 AM PDT 4.37 171 0 Normal
06/19/2025 04 AM PDT 4.37 171 0 Normal
06/19/2025 05 AM PDT 4.37 171 0 Normal
06/19/2025 06 AM PDT 4.37 171 0 Normal
06/19/2025 07 AM PDT 4.37 171 0 Normal
06/19/2025 08 AM PDT 4.37 171 0 Normal
06/19/2025 09 AM PDT 4.37 171 0 Normal
06/19/2025 10 AM PDT 4.37 171 0 Normal
06/19/2025 11 AM PDT 4.37 171 0 Normal
06/19/2025 12 PM PDT 4.37 171 0 Normal
06/19/2025 01 PM PDT 4.37 171 0 Normal
06/19/2025 02 PM PDT 4.37 171 0 Normal
06/19/2025 03 PM PDT 4.37 171 0 Normal
06/19/2025 04 PM PDT 4.37 171 0 Normal
06/19/2025 05 PM PDT 4.37 171 0 Normal
06/19/2025 06 PM PDT 4.36 169 - Normal
06/19/2025 07 PM PDT 4.36 169 0 Normal
06/19/2025 08 PM PDT 4.36 169 0 Normal
06/19/2025 09 PM PDT 4.36 169 0 Normal
06/19/2025 10 PM PDT 4.36 169 0 Normal
06/19/2025 11 PM PDT 4.36 169 0 Normal
06/20/2025 12 AM PDT 4.36 169 0 Normal
06/20/2025 01 AM PDT 4.36 169 0 Normal
06/20/2025 02 AM PDT 4.36 169 0 Normal
06/20/2025 03 AM PDT 4.36 169 0 Normal
06/20/2025 04 AM PDT 4.36 169 0 Normal
06/20/2025 05 AM PDT 4.37 171 + Normal
06/20/2025 06 AM PDT 4.37 171 0 Normal
06/20/2025 07 AM PDT 4.37 171 0 Normal
06/20/2025 08 AM PDT 4.37 171 0 Normal
06/20/2025 09 AM PDT 4.37 171 0 Normal
06/20/2025 10 AM PDT 4.37 171 0 Normal
06/20/2025 11 AM PDT 4.37 171 0 Normal
06/20/2025 12 PM PDT 4.37 171 0 Normal
06/20/2025 01 PM PDT 4.37 171 0 Normal
06/20/2025 02 PM PDT 4.37 171 0 Normal
06/20/2025 03 PM PDT 4.37 171 0 Normal
06/20/2025 04 PM PDT 4.37 171 0 Normal
06/20/2025 05 PM PDT 4.37 171 0 Normal
06/20/2025 06 PM PDT 4.36 169 - Normal
06/20/2025 07 PM PDT 4.36 169 0 Normal
06/20/2025 08 PM PDT 4.36 169 0 Normal
06/20/2025 09 PM PDT 4.36 169 0 Normal
06/20/2025 10 PM PDT 4.36 169 0 Normal
06/20/2025 11 PM PDT 4.36 169 0 Normal
06/21/2025 12 AM PDT 4.36 169 0 Normal
06/21/2025 01 AM PDT 4.36 169 0 Normal
06/21/2025 02 AM PDT 4.36 169 0 Normal
06/21/2025 03 AM PDT 4.36 169 0 Normal
06/21/2025 04 AM PDT 4.36 169 0 Normal
06/21/2025 05 AM PDT 4.36 169 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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