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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: | Mar 20 2026 at 1:26 PM PDT | Next Issuance: | Mar 21 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: 03/20/2026 at 01:26 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/20/2026 at 03:00 AM PDT
# Maximum Observed Stage: 3.11 Feet
# Maximum Observed Flow: 593 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/25/2026 at 02:00 AM PDT
# Maximum Forecast Stage: 3.38 Feet
# Maximum Forecast Flow: 714 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/15/2026 01 PM PDT 2.34 308 Normal
03/15/2026 02 PM PDT 2.33 305 - Normal
03/15/2026 03 PM PDT 2.32 302 - Normal
03/15/2026 04 PM PDT 2.31 299 - Normal
03/15/2026 05 PM PDT 2.32 302 + Normal
03/15/2026 06 PM PDT 2.32 302 0 Normal
03/15/2026 07 PM PDT 2.34 308 + Normal
03/15/2026 08 PM PDT 2.36 314 + Normal
03/15/2026 09 PM PDT 2.39 323 + Normal
03/15/2026 10 PM PDT 2.42 333 + Normal
03/15/2026 11 PM PDT 2.44 339 + Normal
03/16/2026 12 AM PDT 2.45 342 + Normal
03/16/2026 01 AM PDT 2.47 349 + Normal
03/16/2026 02 AM PDT 2.46 346 - Normal
03/16/2026 03 AM PDT 2.45 342 - Normal
03/16/2026 04 AM PDT 2.46 346 + Normal
03/16/2026 05 AM PDT 2.46 346 0 Normal
03/16/2026 06 AM PDT 2.45 342 - Normal
03/16/2026 07 AM PDT 2.45 342 0 Normal
03/16/2026 08 AM PDT 2.44 339 - Normal
03/16/2026 09 AM PDT 2.43 336 - Normal
03/16/2026 10 AM PDT 2.42 333 - Normal
03/16/2026 11 AM PDT 2.42 333 0 Normal
03/16/2026 12 PM PDT 2.42 333 0 Normal
03/16/2026 01 PM PDT 2.40 326 - Normal
03/16/2026 02 PM PDT 2.40 326 0 Normal
03/16/2026 03 PM PDT 2.39 323 - Normal
03/16/2026 04 PM PDT 2.38 320 - Normal
03/16/2026 05 PM PDT 2.39 323 + Normal
03/16/2026 06 PM PDT 2.40 326 + Normal
03/16/2026 07 PM PDT 2.44 339 + Normal
03/16/2026 08 PM PDT 2.50 359 + Normal
03/16/2026 09 PM PDT 2.55 376 + Normal
03/16/2026 10 PM PDT 2.59 390 + Normal
03/16/2026 11 PM PDT 2.63 404 + Normal
03/17/2026 12 AM PDT 2.65 411 + Normal
03/17/2026 01 AM PDT 2.66 415 + Normal
03/17/2026 02 AM PDT 2.67 419 + Normal
03/17/2026 03 AM PDT 2.66 415 - Normal
03/17/2026 04 AM PDT 2.67 419 + Normal
03/17/2026 05 AM PDT 2.67 419 0 Normal
03/17/2026 06 AM PDT 2.67 419 0 Normal
03/17/2026 07 AM PDT 2.66 415 - Normal
03/17/2026 08 AM PDT 2.65 411 - Normal
03/17/2026 09 AM PDT 2.64 408 - Normal
03/17/2026 10 AM PDT 2.62 401 - Normal
03/17/2026 11 AM PDT 2.62 401 0 Normal
03/17/2026 12 PM PDT 2.61 397 - Normal
03/17/2026 01 PM PDT 2.59 390 - Normal
03/17/2026 02 PM PDT 2.59 390 0 Normal
03/17/2026 03 PM PDT 2.56 379 - Normal
03/17/2026 04 PM PDT 2.56 379 0 Normal
03/17/2026 05 PM PDT 2.58 386 + Normal
03/17/2026 06 PM PDT 2.62 401 + Normal
03/17/2026 07 PM PDT 2.68 422 + Normal
03/17/2026 08 PM PDT 2.76 453 + Normal
03/17/2026 09 PM PDT 2.83 481 + Normal
03/17/2026 10 PM PDT 2.88 501 + Normal
03/17/2026 11 PM PDT 2.94 524 + Normal
03/18/2026 12 AM PDT 2.97 536 + Normal
03/18/2026 01 AM PDT 2.98 540 + Normal
03/18/2026 02 AM PDT 2.98 540 0 Normal
03/18/2026 03 AM PDT 2.99 544 + Normal
03/18/2026 04 AM PDT 2.99 544 0 Normal
03/18/2026 05 AM PDT 2.98 540 - Normal
03/18/2026 06 AM PDT 2.98 540 0 Normal
03/18/2026 07 AM PDT 2.95 528 - Normal
03/18/2026 08 AM PDT 2.93 520 - Normal
03/18/2026 09 AM PDT 2.91 512 - Normal
03/18/2026 10 AM PDT 2.90 508 - Normal
03/18/2026 11 AM PDT 2.87 497 - Normal
03/18/2026 12 PM PDT 2.84 485 - Normal
03/18/2026 01 PM PDT 2.84 485 0 Normal
03/18/2026 02 PM PDT 2.81 473 - Normal
03/18/2026 03 PM PDT 2.79 465 - Normal
03/18/2026 04 PM PDT 2.78 461 - Normal
03/18/2026 05 PM PDT 2.78 461 0 Normal
03/18/2026 06 PM PDT 2.81 473 + Normal
03/18/2026 07 PM PDT 2.86 493 + Normal
03/18/2026 08 PM PDT 2.92 516 + Normal
03/18/2026 09 PM PDT 2.97 536 + Normal
03/18/2026 10 PM PDT 3.01 552 + Normal
03/18/2026 11 PM PDT 3.04 564 + Normal
03/19/2026 12 AM PDT 3.05 568 + Normal
03/19/2026 01 AM PDT 3.05 568 0 Normal
03/19/2026 02 AM PDT 3.06 572 + Normal
03/19/2026 03 AM PDT 3.05 568 - Normal
03/19/2026 04 AM PDT 3.04 564 - Normal
03/19/2026 05 AM PDT 3.02 556 - Normal
03/19/2026 06 AM PDT 3.00 548 - Normal
03/19/2026 07 AM PDT 2.99 544 - Normal
03/19/2026 08 AM PDT 2.96 532 - Normal
03/19/2026 09 AM PDT 2.95 528 - Normal
03/19/2026 10 AM PDT 2.92 516 - Normal
03/19/2026 11 AM PDT 2.91 512 - Normal
03/19/2026 12 PM PDT 2.88 501 - Normal
03/19/2026 01 PM PDT 2.87 497 - Normal
03/19/2026 02 PM PDT 2.83 481 - Normal
03/19/2026 03 PM PDT 2.82 477 - Normal
03/19/2026 04 PM PDT 2.81 473 - Normal
03/19/2026 05 PM PDT 2.82 477 + Normal
03/19/2026 06 PM PDT 2.85 489 + Normal
03/19/2026 07 PM PDT 2.89 505 + Normal
03/19/2026 08 PM PDT 2.96 532 + Normal
03/19/2026 09 PM PDT 3.02 556 + Normal
03/19/2026 10 PM PDT 3.06 572 + Normal
03/19/2026 11 PM PDT 3.08 580 + Normal
03/20/2026 12 AM PDT 3.10 589 + Normal
03/20/2026 01 AM PDT 3.10 589 0 Normal
03/20/2026 02 AM PDT 3.11 593 + Normal
03/20/2026 03 AM PDT 3.11 593 0 Normal
03/20/2026 04 AM PDT 3.10 589 - Normal
03/20/2026 05 AM PDT 3.08 580 - Normal
03/20/2026 06 AM PDT 3.07 576 - Normal
03/20/2026 07 AM PDT 3.05 568 - Normal
03/20/2026 08 AM PDT 3.03 560 - Normal
03/20/2026 09 AM PDT 3.01 552 - Normal
03/20/2026 10 AM PDT 2.99 544 - Normal
03/20/2026 11 AM PDT 2.97 536 - Normal
03/20/2026 12 PM PDT 2.94 524 - Normal
03/20/2026 01 PM PDT 2.92 516 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/20/2026 02 PM PDT 2.92 516 Normal
03/20/2026 03 PM PDT 2.90 508 - Normal
03/20/2026 04 PM PDT 2.92 516 + Normal
03/20/2026 05 PM PDT 2.95 528 + Normal
03/20/2026 06 PM PDT 2.99 544 + Normal
03/20/2026 07 PM PDT 3.03 560 + Normal
03/20/2026 08 PM PDT 3.06 572 + Normal
03/20/2026 09 PM PDT 3.09 585 + Normal
03/20/2026 10 PM PDT 3.12 597 + Normal
03/20/2026 11 PM PDT 3.14 606 + Normal
03/21/2026 12 AM PDT 3.17 619 + Normal
03/21/2026 01 AM PDT 3.19 627 + Normal
03/21/2026 02 AM PDT 3.20 632 + Normal
03/21/2026 03 AM PDT 3.20 632 0 Normal
03/21/2026 04 AM PDT 3.21 636 + Normal
03/21/2026 05 AM PDT 3.21 636 0 Normal
03/21/2026 06 AM PDT 3.20 632 - Normal
03/21/2026 07 AM PDT 3.18 623 - Normal
03/21/2026 08 AM PDT 3.16 614 - Normal
03/21/2026 09 AM PDT 3.15 610 - Normal
03/21/2026 10 AM PDT 3.12 597 - Normal
03/21/2026 11 AM PDT 3.11 593 - Normal
03/21/2026 12 PM PDT 3.07 576 - Normal
03/21/2026 01 PM PDT 3.05 568 - Normal
03/21/2026 02 PM PDT 3.03 560 - Normal
03/21/2026 03 PM PDT 3.01 552 - Normal
03/21/2026 04 PM PDT 3.01 552 0 Normal
03/21/2026 05 PM PDT 3.02 556 + Normal
03/21/2026 06 PM PDT 3.06 572 + Normal
03/21/2026 07 PM PDT 3.09 585 + Normal
03/21/2026 08 PM PDT 3.14 606 + Normal
03/21/2026 09 PM PDT 3.17 619 + Normal
03/21/2026 10 PM PDT 3.21 636 + Normal
03/21/2026 11 PM PDT 3.22 641 + Normal
03/22/2026 12 AM PDT 3.23 645 + Normal
03/22/2026 01 AM PDT 3.24 649 + Normal
03/22/2026 02 AM PDT 3.25 654 + Normal
03/22/2026 03 AM PDT 3.24 649 - Normal
03/22/2026 04 AM PDT 3.24 649 0 Normal
03/22/2026 05 AM PDT 3.23 645 - Normal
03/22/2026 06 AM PDT 3.22 641 - Normal
03/22/2026 07 AM PDT 3.19 627 - Normal
03/22/2026 08 AM PDT 3.17 619 - Normal
03/22/2026 09 AM PDT 3.15 610 - Normal
03/22/2026 10 AM PDT 3.12 597 - Normal
03/22/2026 11 AM PDT 3.10 589 - Normal
03/22/2026 12 PM PDT 3.06 572 - Normal
03/22/2026 01 PM PDT 3.04 564 - Normal
03/22/2026 02 PM PDT 3.02 556 - Normal
03/22/2026 03 PM PDT 2.99 544 - Normal
03/22/2026 04 PM PDT 2.99 544 0 Normal
03/22/2026 05 PM PDT 3.00 548 + Normal
03/22/2026 06 PM PDT 3.03 560 + Normal
03/22/2026 07 PM PDT 3.06 572 + Normal
03/22/2026 08 PM PDT 3.11 593 + Normal
03/22/2026 09 PM PDT 3.14 606 + Normal
03/22/2026 10 PM PDT 3.17 619 + Normal
03/22/2026 11 PM PDT 3.19 627 + Normal
03/23/2026 12 AM PDT 3.20 632 + Normal
03/23/2026 01 AM PDT 3.22 641 + Normal
03/23/2026 02 AM PDT 3.22 641 0 Normal
03/23/2026 03 AM PDT 3.22 641 0 Normal
03/23/2026 04 AM PDT 3.22 641 0 Normal
03/23/2026 05 AM PDT 3.22 641 0 Normal
03/23/2026 06 AM PDT 3.21 636 - Normal
03/23/2026 07 AM PDT 3.19 627 - Normal
03/23/2026 08 AM PDT 3.17 619 - Normal
03/23/2026 09 AM PDT 3.15 610 - Normal
03/23/2026 10 AM PDT 3.12 597 - Normal
03/23/2026 11 AM PDT 3.11 593 - Normal
03/23/2026 12 PM PDT 3.07 576 - Normal
03/23/2026 01 PM PDT 3.05 568 - Normal
03/23/2026 02 PM PDT 3.03 560 - Normal
03/23/2026 03 PM PDT 3.01 552 - Normal
03/23/2026 04 PM PDT 3.01 552 0 Normal
03/23/2026 05 PM PDT 3.02 556 + Normal
03/23/2026 06 PM PDT 3.06 572 + Normal
03/23/2026 07 PM PDT 3.09 585 + Normal
03/23/2026 08 PM PDT 3.14 606 + Normal
03/23/2026 09 PM PDT 3.17 619 + Normal
03/23/2026 10 PM PDT 3.21 636 + Normal
03/23/2026 11 PM PDT 3.23 645 + Normal
03/24/2026 12 AM PDT 3.25 654 + Normal
03/24/2026 01 AM PDT 3.26 658 + Normal
03/24/2026 02 AM PDT 3.27 663 + Normal
03/24/2026 03 AM PDT 3.27 663 0 Normal
03/24/2026 04 AM PDT 3.27 663 0 Normal
03/24/2026 05 AM PDT 3.27 663 0 Normal
03/24/2026 06 AM PDT 3.26 658 - Normal
03/24/2026 07 AM PDT 3.24 649 - Normal
03/24/2026 08 AM PDT 3.22 641 - Normal
03/24/2026 09 AM PDT 3.21 636 - Normal
03/24/2026 10 AM PDT 3.18 623 - Normal
03/24/2026 11 AM PDT 3.17 619 - Normal
03/24/2026 12 PM PDT 3.13 601 - Normal
03/24/2026 01 PM PDT 3.11 593 - Normal
03/24/2026 02 PM PDT 3.10 589 - Normal
03/24/2026 03 PM PDT 3.08 580 - Normal
03/24/2026 04 PM PDT 3.08 580 0 Normal
03/24/2026 05 PM PDT 3.09 585 + Normal
03/24/2026 06 PM PDT 3.13 601 + Normal
03/24/2026 07 PM PDT 3.17 619 + Normal
03/24/2026 08 PM PDT 3.22 641 + Normal
03/24/2026 09 PM PDT 3.26 658 + Normal
03/24/2026 10 PM PDT 3.31 681 + Normal
03/24/2026 11 PM PDT 3.33 690 + Normal
03/25/2026 12 AM PDT 3.35 700 + Normal
03/25/2026 01 AM PDT 3.37 709 + Normal
03/25/2026 02 AM PDT 3.38 714 + Normal
03/25/2026 03 AM PDT 3.38 714 0 Normal
03/25/2026 04 AM PDT 3.38 714 0 Normal
03/25/2026 05 AM PDT 3.38 714 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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