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WALKER RIVER - MASON AT SNYDER LANE (MASN2)
| Latitude: 38.92º N | Longitude: 119.19º W | Elevation: 4420 Feet | | Forecast Type: Official Location |
| Location: Lyon County in Nevada | Bulletin Group: Eastern Sierra | River Group: Eastern Sierra |
| Issuance Time: | May 23 2026 at 8:36 AM PDT | Next Issuance: | May 24 2026 at 9:00 AM PDT
| |
| Action/Monitor: 9.0 Feet | Minor Flood: 9.8 Feet | Moderate Flood: 11.0 Feet | Major Flood: 11.6 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Walker River - Mason at Snyder Lane (MASN2)
#
# File Generation Time: 05/23/2026 at 08:36 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/18/2026 at 01:00 PM PDT
# Maximum Observed Stage: 5.37 Feet
# Maximum Observed Flow: 373 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/23/2026 at 11:00 AM PDT
# Maximum Forecast Stage: 5.12 Feet
# Maximum Forecast Flow: 313 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/18/2026 08 AM PDT 5.36 371 Normal
05/18/2026 09 AM PDT 5.35 368 - Normal
05/18/2026 10 AM PDT 5.36 371 + Normal
05/18/2026 11 AM PDT 5.36 371 0 Normal
05/18/2026 12 PM PDT 5.37 373 + Normal
05/18/2026 01 PM PDT 5.37 373 0 Normal
05/18/2026 02 PM PDT 5.36 371 - Normal
05/18/2026 03 PM PDT 5.36 371 0 Normal
05/18/2026 04 PM PDT 5.36 371 0 Normal
05/18/2026 05 PM PDT 5.32 361 - Normal
05/18/2026 06 PM PDT 5.31 358 - Normal
05/18/2026 07 PM PDT 5.30 356 - Normal
05/18/2026 08 PM PDT 5.28 351 - Normal
05/18/2026 09 PM PDT 5.27 349 - Normal
05/18/2026 10 PM PDT 5.26 346 - Normal
05/18/2026 11 PM PDT 5.24 341 - Normal
05/19/2026 12 AM PDT 5.25 344 + Normal
05/19/2026 01 AM PDT 5.26 346 + Normal
05/19/2026 02 AM PDT 5.25 344 - Normal
05/19/2026 03 AM PDT 5.24 341 - Normal
05/19/2026 04 AM PDT 5.22 337 - Normal
05/19/2026 05 AM PDT 5.20 332 - Normal
05/19/2026 06 AM PDT 5.18 327 - Normal
05/19/2026 07 AM PDT 5.15 320 - Normal
05/19/2026 08 AM PDT 5.13 316 - Normal
05/19/2026 09 AM PDT 5.12 313 - Normal
05/19/2026 10 AM PDT 5.10 309 - Normal
05/19/2026 11 AM PDT 5.11 311 + Normal
05/19/2026 12 PM PDT 5.09 307 - Normal
05/19/2026 01 PM PDT 5.10 309 + Normal
05/19/2026 02 PM PDT 5.08 304 - Normal
05/19/2026 03 PM PDT 5.08 304 0 Normal
05/19/2026 04 PM PDT 5.08 304 0 Normal
05/19/2026 05 PM PDT 5.13 316 + Normal
05/19/2026 06 PM PDT 5.19 330 + Normal
05/19/2026 07 PM PDT 5.21 334 + Normal
05/19/2026 08 PM PDT 5.21 334 0 Normal
05/19/2026 09 PM PDT 5.22 337 + Normal
05/19/2026 10 PM PDT 5.23 339 + Normal
05/19/2026 11 PM PDT 5.22 337 - Normal
05/20/2026 12 AM PDT 5.22 337 0 Normal
05/20/2026 01 AM PDT 5.21 334 - Normal
05/20/2026 02 AM PDT 5.20 332 - Normal
05/20/2026 03 AM PDT 5.19 330 - Normal
05/20/2026 04 AM PDT 5.19 330 0 Normal
05/20/2026 05 AM PDT 5.18 327 - Normal
05/20/2026 06 AM PDT 5.16 323 - Normal
05/20/2026 07 AM PDT 5.14 318 - Normal
05/20/2026 08 AM PDT 5.14 318 0 Normal
05/20/2026 09 AM PDT 5.14 318 0 Normal
05/20/2026 10 AM PDT 5.14 318 0 Normal
05/20/2026 11 AM PDT 5.14 318 0 Normal
05/20/2026 12 PM PDT 5.14 318 0 Normal
05/20/2026 01 PM PDT 5.15 320 + Normal
05/20/2026 02 PM PDT 5.13 316 - Normal
05/20/2026 03 PM PDT 5.13 316 0 Normal
05/20/2026 04 PM PDT 5.13 316 0 Normal
05/20/2026 05 PM PDT 5.13 316 0 Normal
05/20/2026 06 PM PDT 5.12 313 - Normal
05/20/2026 07 PM PDT 5.12 313 0 Normal
05/20/2026 08 PM PDT 5.13 316 + Normal
05/20/2026 09 PM PDT 5.12 313 - Normal
05/20/2026 10 PM PDT 5.13 316 + Normal
05/20/2026 11 PM PDT 5.12 313 - Normal
05/21/2026 12 AM PDT 5.13 316 + Normal
05/21/2026 01 AM PDT 5.12 313 - Normal
05/21/2026 02 AM PDT 5.12 313 0 Normal
05/21/2026 03 AM PDT 5.11 311 - Normal
05/21/2026 04 AM PDT 5.11 311 0 Normal
05/21/2026 05 AM PDT 5.11 311 0 Normal
05/21/2026 06 AM PDT 5.10 309 - Normal
05/21/2026 07 AM PDT 5.10 309 0 Normal
05/21/2026 08 AM PDT 5.10 309 0 Normal
05/21/2026 09 AM PDT 5.10 309 0 Normal
05/21/2026 10 AM PDT 5.10 309 0 Normal
05/21/2026 11 AM PDT 5.09 307 - Normal
05/21/2026 12 PM PDT 5.07 302 - Normal
05/21/2026 01 PM PDT 5.07 302 0 Normal
05/21/2026 02 PM PDT 5.07 302 0 Normal
05/21/2026 03 PM PDT 5.08 304 + Normal
05/21/2026 04 PM PDT 5.07 302 - Normal
05/21/2026 05 PM PDT 5.09 307 + Normal
05/21/2026 06 PM PDT 5.10 309 + Normal
05/21/2026 07 PM PDT 5.11 311 + Normal
05/21/2026 08 PM PDT 5.11 311 0 Normal
05/21/2026 09 PM PDT 5.10 309 - Normal
05/21/2026 10 PM PDT 5.11 311 + Normal
05/21/2026 11 PM PDT 5.10 309 - Normal
05/22/2026 12 AM PDT 5.10 309 0 Normal
05/22/2026 01 AM PDT 5.11 311 + Normal
05/22/2026 02 AM PDT 5.11 311 0 Normal
05/22/2026 03 AM PDT 5.10 309 - Normal
05/22/2026 04 AM PDT 5.11 311 + Normal
05/22/2026 05 AM PDT 5.11 311 0 Normal
05/22/2026 06 AM PDT 5.10 309 - Normal
05/22/2026 07 AM PDT 5.09 307 - Normal
05/22/2026 08 AM PDT 5.10 309 + Normal
05/22/2026 09 AM PDT 5.09 307 - Normal
05/22/2026 10 AM PDT 5.09 307 0 Normal
05/22/2026 11 AM PDT 5.08 304 - Normal
05/22/2026 12 PM PDT 5.07 302 - Normal
05/22/2026 01 PM PDT 5.08 304 + Normal
05/22/2026 02 PM PDT 5.08 304 0 Normal
05/22/2026 03 PM PDT 5.07 302 - Normal
05/22/2026 04 PM PDT 5.08 304 + Normal
05/22/2026 05 PM PDT 5.07 302 - Normal
05/22/2026 06 PM PDT 5.08 304 + Normal
05/22/2026 07 PM PDT 5.07 302 - Normal
05/22/2026 08 PM PDT 5.07 302 0 Normal
05/22/2026 09 PM PDT 5.08 304 + Normal
05/22/2026 10 PM PDT 5.07 302 - Normal
05/22/2026 11 PM PDT 5.08 304 + Normal
05/23/2026 12 AM PDT 5.08 304 0 Normal
05/23/2026 01 AM PDT 5.08 304 0 Normal
05/23/2026 02 AM PDT 5.10 309 + Normal
05/23/2026 03 AM PDT 5.10 309 0 Normal
05/23/2026 04 AM PDT 5.10 309 0 Normal
05/23/2026 05 AM PDT 5.10 309 0 Normal
05/23/2026 06 AM PDT 5.10 309 0 Normal
05/23/2026 07 AM PDT 5.10 309 0 Normal
05/23/2026 08 AM PDT 5.10 309 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/23/2026 09 AM PDT 5.11 311 Normal
05/23/2026 10 AM PDT 5.11 311 0 Normal
05/23/2026 11 AM PDT 5.12 313 + Normal
05/23/2026 12 PM PDT 5.12 313 0 Normal
05/23/2026 01 PM PDT 5.12 313 0 Normal
05/23/2026 02 PM PDT 5.11 311 - Normal
05/23/2026 03 PM PDT 5.11 311 0 Normal
05/23/2026 04 PM PDT 5.11 311 0 Normal
05/23/2026 05 PM PDT 5.11 311 0 Normal
05/23/2026 06 PM PDT 5.11 311 0 Normal
05/23/2026 07 PM PDT 5.11 311 0 Normal
05/23/2026 08 PM PDT 5.11 311 0 Normal
05/23/2026 09 PM PDT 5.10 309 - Normal
05/23/2026 10 PM PDT 5.10 309 0 Normal
05/23/2026 11 PM PDT 5.10 309 0 Normal
05/24/2026 12 AM PDT 5.10 309 0 Normal
05/24/2026 01 AM PDT 5.10 309 0 Normal
05/24/2026 02 AM PDT 5.10 309 0 Normal
05/24/2026 03 AM PDT 5.10 309 0 Normal
05/24/2026 04 AM PDT 5.10 309 0 Normal
05/24/2026 05 AM PDT 5.10 309 0 Normal
05/24/2026 06 AM PDT 5.10 309 0 Normal
05/24/2026 07 AM PDT 5.10 309 0 Normal
05/24/2026 08 AM PDT 5.11 311 + Normal
05/24/2026 09 AM PDT 5.11 311 0 Normal
05/24/2026 10 AM PDT 5.11 311 0 Normal
05/24/2026 11 AM PDT 5.11 311 0 Normal
05/24/2026 12 PM PDT 5.11 311 0 Normal
05/24/2026 01 PM PDT 5.11 311 0 Normal
05/24/2026 02 PM PDT 5.11 311 0 Normal
05/24/2026 03 PM PDT 5.11 311 0 Normal
05/24/2026 04 PM PDT 5.10 309 - Normal
05/24/2026 05 PM PDT 5.10 309 0 Normal
05/24/2026 06 PM PDT 5.10 309 0 Normal
05/24/2026 07 PM PDT 5.10 309 0 Normal
05/24/2026 08 PM PDT 5.10 309 0 Normal
05/24/2026 09 PM PDT 5.10 309 0 Normal
05/24/2026 10 PM PDT 5.10 309 0 Normal
05/24/2026 11 PM PDT 5.10 309 0 Normal
05/25/2026 12 AM PDT 5.10 309 0 Normal
05/25/2026 01 AM PDT 5.10 309 0 Normal
05/25/2026 02 AM PDT 5.10 309 0 Normal
05/25/2026 03 AM PDT 5.10 309 0 Normal
05/25/2026 04 AM PDT 5.10 309 0 Normal
05/25/2026 05 AM PDT 5.11 311 + Normal
05/25/2026 06 AM PDT 5.11 311 0 Normal
05/25/2026 07 AM PDT 5.11 311 0 Normal
05/25/2026 08 AM PDT 5.11 311 0 Normal
05/25/2026 09 AM PDT 5.11 311 0 Normal
05/25/2026 10 AM PDT 5.11 311 0 Normal
05/25/2026 11 AM PDT 5.12 313 + Normal
05/25/2026 12 PM PDT 5.12 313 0 Normal
05/25/2026 01 PM PDT 5.12 313 0 Normal
05/25/2026 02 PM PDT 5.12 313 0 Normal
05/25/2026 03 PM PDT 5.12 313 0 Normal
05/25/2026 04 PM PDT 5.11 311 - Normal
05/25/2026 05 PM PDT 5.11 311 0 Normal
05/25/2026 06 PM PDT 5.11 311 0 Normal
05/25/2026 07 PM PDT 5.11 311 0 Normal
05/25/2026 08 PM PDT 5.11 311 0 Normal
05/25/2026 09 PM PDT 5.11 311 0 Normal
05/25/2026 10 PM PDT 5.11 311 0 Normal
05/25/2026 11 PM PDT 5.11 311 0 Normal
05/26/2026 12 AM PDT 5.11 311 0 Normal
05/26/2026 01 AM PDT 5.11 311 0 Normal
05/26/2026 02 AM PDT 5.11 311 0 Normal
05/26/2026 03 AM PDT 5.11 311 0 Normal
05/26/2026 04 AM PDT 5.11 311 0 Normal
05/26/2026 05 AM PDT 5.11 311 0 Normal
05/26/2026 06 AM PDT 5.11 311 0 Normal
05/26/2026 07 AM PDT 5.12 313 + Normal
05/26/2026 08 AM PDT 5.12 313 0 Normal
05/26/2026 09 AM PDT 5.12 313 0 Normal
05/26/2026 10 AM PDT 5.12 313 0 Normal
05/26/2026 11 AM PDT 5.12 313 0 Normal
05/26/2026 12 PM PDT 5.12 313 0 Normal
05/26/2026 01 PM PDT 5.12 313 0 Normal
05/26/2026 02 PM PDT 5.12 313 0 Normal
05/26/2026 03 PM PDT 5.11 311 - Normal
05/26/2026 04 PM PDT 5.11 311 0 Normal
05/26/2026 05 PM PDT 5.11 311 0 Normal
05/26/2026 06 PM PDT 5.11 311 0 Normal
05/26/2026 07 PM PDT 5.10 309 - Normal
05/26/2026 08 PM PDT 5.10 309 0 Normal
05/26/2026 09 PM PDT 5.10 309 0 Normal
05/26/2026 10 PM PDT 5.10 309 0 Normal
05/26/2026 11 PM PDT 5.09 307 - Normal
05/27/2026 12 AM PDT 5.09 307 0 Normal
05/27/2026 01 AM PDT 5.09 307 0 Normal
05/27/2026 02 AM PDT 5.09 307 0 Normal
05/27/2026 03 AM PDT 5.09 307 0 Normal
05/27/2026 04 AM PDT 5.09 307 0 Normal
05/27/2026 05 AM PDT 5.09 307 0 Normal
05/27/2026 06 AM PDT 5.09 307 0 Normal
05/27/2026 07 AM PDT 5.09 307 0 Normal
05/27/2026 08 AM PDT 5.09 307 0 Normal
05/27/2026 09 AM PDT 5.09 307 0 Normal
05/27/2026 10 AM PDT 5.09 307 0 Normal
05/27/2026 11 AM PDT 5.08 304 - Normal
05/27/2026 12 PM PDT 5.08 304 0 Normal
05/27/2026 01 PM PDT 5.08 304 0 Normal
05/27/2026 02 PM PDT 5.08 304 0 Normal
05/27/2026 03 PM PDT 5.08 304 0 Normal
05/27/2026 04 PM PDT 5.07 302 - Normal
05/27/2026 05 PM PDT 5.07 302 0 Normal
05/27/2026 06 PM PDT 5.07 302 0 Normal
05/27/2026 07 PM PDT 5.06 300 - Normal
05/27/2026 08 PM PDT 5.06 300 0 Normal
05/27/2026 09 PM PDT 5.05 298 - Normal
05/27/2026 10 PM PDT 5.05 298 0 Normal
05/27/2026 11 PM PDT 5.05 298 0 Normal
05/28/2026 12 AM PDT 5.05 298 0 Normal
05/28/2026 01 AM PDT 5.04 295 - Normal
05/28/2026 02 AM PDT 5.04 295 0 Normal
05/28/2026 03 AM PDT 5.04 295 0 Normal
05/28/2026 04 AM PDT 5.04 295 0 Normal
05/28/2026 05 AM PDT 5.04 295 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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