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RUSSIAN RIVER - HEALDSBURG (HEAC1)
| Latitude: 38.61º N | Longitude: 122.84º W | Elevation: 77 Feet | | Forecast Type: Official Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Mar 18 2026 at 12:50 PM PDT | Next Issuance: | Mar 19 2026 at 9:00 AM PDT
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| Action/Monitor: 20.0 Feet | Minor Flood: 23.0 Feet | Moderate Flood: 27.0 Feet | Major Flood: 29.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Healdsburg (HEAC1)
#
# File Generation Time: 03/18/2026 at 12:50 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/13/2026 at 04:00 PM PDT
# Maximum Observed Stage: 1.86 Feet
# Maximum Observed Flow: 833 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/18/2026 at 01:00 PM PDT
# Maximum Forecast Stage: 1.43 Feet
# Maximum Forecast Flow: 629 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/13/2026 12 PM PDT 1.86 833 Normal
03/13/2026 01 PM PDT 1.86 833 0 Normal
03/13/2026 02 PM PDT 1.86 833 0 Normal
03/13/2026 03 PM PDT 1.86 833 0 Normal
03/13/2026 04 PM PDT 1.86 833 0 Normal
03/13/2026 05 PM PDT 1.85 827 - Normal
03/13/2026 06 PM PDT 1.84 822 - Normal
03/13/2026 07 PM PDT 1.84 822 0 Normal
03/13/2026 08 PM PDT 1.84 822 0 Normal
03/13/2026 09 PM PDT 1.83 816 - Normal
03/13/2026 10 PM PDT 1.82 811 - Normal
03/13/2026 11 PM PDT 1.82 811 0 Normal
03/14/2026 12 AM PDT 1.81 805 - Normal
03/14/2026 01 AM PDT 1.81 805 0 Normal
03/14/2026 02 AM PDT 1.80 800 - Normal
03/14/2026 03 AM PDT 1.80 800 0 Normal
03/14/2026 04 AM PDT 1.80 800 0 Normal
03/14/2026 05 AM PDT 1.78 789 - Normal
03/14/2026 06 AM PDT 1.79 794 + Normal
03/14/2026 07 AM PDT 1.79 794 0 Normal
03/14/2026 08 AM PDT 1.78 789 - Normal
03/14/2026 09 AM PDT 1.77 783 - Normal
03/14/2026 10 AM PDT 1.77 783 0 Normal
03/14/2026 11 AM PDT 1.76 778 - Normal
03/14/2026 12 PM PDT 1.77 783 + Normal
03/14/2026 01 PM PDT 1.76 778 - Normal
03/14/2026 02 PM PDT 1.76 778 0 Normal
03/14/2026 03 PM PDT 1.75 772 - Normal
03/14/2026 04 PM PDT 1.75 772 0 Normal
03/14/2026 05 PM PDT 1.75 772 0 Normal
03/14/2026 06 PM PDT 1.74 766 - Normal
03/14/2026 07 PM PDT 1.74 766 0 Normal
03/14/2026 08 PM PDT 1.73 761 - Normal
03/14/2026 09 PM PDT 1.73 761 0 Normal
03/14/2026 10 PM PDT 1.72 755 - Normal
03/14/2026 11 PM PDT 1.72 755 0 Normal
03/15/2026 12 AM PDT 1.71 750 - Normal
03/15/2026 01 AM PDT 1.70 744 - Normal
03/15/2026 02 AM PDT 1.70 744 0 Normal
03/15/2026 03 AM PDT 1.69 740 - Normal
03/15/2026 04 AM PDT 1.69 740 0 Normal
03/15/2026 05 AM PDT 1.69 740 0 Normal
03/15/2026 06 AM PDT 1.67 731 - Normal
03/15/2026 07 AM PDT 1.67 731 0 Normal
03/15/2026 08 AM PDT 1.67 731 0 Normal
03/15/2026 09 AM PDT 1.67 731 0 Normal
03/15/2026 10 AM PDT 1.66 726 - Normal
03/15/2026 11 AM PDT 1.66 726 0 Normal
03/15/2026 12 PM PDT 1.66 726 0 Normal
03/15/2026 01 PM PDT 1.65 722 - Normal
03/15/2026 02 PM PDT 1.65 722 0 Normal
03/15/2026 03 PM PDT 1.65 722 0 Normal
03/15/2026 04 PM PDT 1.64 718 - Normal
03/15/2026 05 PM PDT 1.65 722 + Normal
03/15/2026 06 PM PDT 1.64 718 - Normal
03/15/2026 07 PM PDT 1.64 718 0 Normal
03/15/2026 08 PM PDT 1.63 713 - Normal
03/15/2026 09 PM PDT 1.62 709 - Normal
03/15/2026 10 PM PDT 1.62 709 0 Normal
03/15/2026 11 PM PDT 1.62 709 0 Normal
03/16/2026 12 AM PDT 1.61 705 - Normal
03/16/2026 01 AM PDT 1.60 700 - Normal
03/16/2026 02 AM PDT 1.61 705 + Normal
03/16/2026 03 AM PDT 1.60 700 - Normal
03/16/2026 04 AM PDT 1.59 696 - Normal
03/16/2026 05 AM PDT 1.59 696 0 Normal
03/16/2026 06 AM PDT 1.58 692 - Normal
03/16/2026 07 AM PDT 1.58 692 0 Normal
03/16/2026 08 AM PDT 1.58 692 0 Normal
03/16/2026 09 AM PDT 1.58 692 0 Normal
03/16/2026 10 AM PDT 1.58 692 0 Normal
03/16/2026 11 AM PDT 1.57 687 - Normal
03/16/2026 12 PM PDT 1.57 687 0 Normal
03/16/2026 01 PM PDT 1.56 683 - Normal
03/16/2026 02 PM PDT 1.57 687 + Normal
03/16/2026 03 PM PDT 1.56 683 - Normal
03/16/2026 04 PM PDT 1.56 683 0 Normal
03/16/2026 05 PM PDT 1.55 679 - Normal
03/16/2026 06 PM PDT 1.55 679 0 Normal
03/16/2026 07 PM PDT 1.55 679 0 Normal
03/16/2026 08 PM PDT 1.55 679 0 Normal
03/16/2026 09 PM PDT 1.54 675 - Normal
03/16/2026 10 PM PDT 1.54 675 0 Normal
03/16/2026 11 PM PDT 1.53 671 - Normal
03/17/2026 12 AM PDT 1.53 671 0 Normal
03/17/2026 01 AM PDT 1.52 666 - Normal
03/17/2026 02 AM PDT 1.51 662 - Normal
03/17/2026 03 AM PDT 1.51 662 0 Normal
03/17/2026 04 AM PDT 1.50 658 - Normal
03/17/2026 05 AM PDT 1.50 658 0 Normal
03/17/2026 06 AM PDT 1.50 658 0 Normal
03/17/2026 07 AM PDT 1.49 654 - Normal
03/17/2026 08 AM PDT 1.49 654 0 Normal
03/17/2026 09 AM PDT 1.50 658 + Normal
03/17/2026 10 AM PDT 1.50 658 0 Normal
03/17/2026 11 AM PDT 1.48 650 - Normal
03/17/2026 12 PM PDT 1.48 650 0 Normal
03/17/2026 01 PM PDT 1.48 650 0 Normal
03/17/2026 02 PM PDT 1.49 654 + Normal
03/17/2026 03 PM PDT 1.48 650 - Normal
03/17/2026 04 PM PDT 1.48 650 0 Normal
03/17/2026 05 PM PDT 1.48 650 0 Normal
03/17/2026 06 PM PDT 1.48 650 0 Normal
03/17/2026 07 PM PDT 1.47 645 - Normal
03/17/2026 08 PM PDT 1.47 645 0 Normal
03/17/2026 09 PM PDT 1.46 641 - Normal
03/17/2026 10 PM PDT 1.46 641 0 Normal
03/17/2026 11 PM PDT 1.46 641 0 Normal
03/18/2026 12 AM PDT 1.45 637 - Normal
03/18/2026 01 AM PDT 1.45 637 0 Normal
03/18/2026 02 AM PDT 1.44 633 - Normal
03/18/2026 03 AM PDT 1.44 633 0 Normal
03/18/2026 04 AM PDT 1.44 633 0 Normal
03/18/2026 05 AM PDT 1.44 633 0 Normal
03/18/2026 06 AM PDT 1.43 629 - Normal
03/18/2026 07 AM PDT 1.43 629 0 Normal
03/18/2026 08 AM PDT 1.43 629 0 Normal
03/18/2026 09 AM PDT 1.42 625 - Normal
03/18/2026 10 AM PDT 1.42 625 0 Normal
03/18/2026 11 AM PDT 1.43 629 + Normal
03/18/2026 12 PM PDT 1.43 629 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/18/2026 01 PM PDT 1.43 629 Normal
03/18/2026 02 PM PDT 1.42 625 - Normal
03/18/2026 03 PM PDT 1.42 625 0 Normal
03/18/2026 04 PM PDT 1.42 625 0 Normal
03/18/2026 05 PM PDT 1.42 625 0 Normal
03/18/2026 06 PM PDT 1.41 621 - Normal
03/18/2026 07 PM PDT 1.41 621 0 Normal
03/18/2026 08 PM PDT 1.41 621 0 Normal
03/18/2026 09 PM PDT 1.41 621 0 Normal
03/18/2026 10 PM PDT 1.41 621 0 Normal
03/18/2026 11 PM PDT 1.40 617 - Normal
03/19/2026 12 AM PDT 1.40 617 0 Normal
03/19/2026 01 AM PDT 1.40 617 0 Normal
03/19/2026 02 AM PDT 1.40 617 0 Normal
03/19/2026 03 AM PDT 1.40 617 0 Normal
03/19/2026 04 AM PDT 1.39 613 - Normal
03/19/2026 05 AM PDT 1.39 613 0 Normal
03/19/2026 06 AM PDT 1.39 613 0 Normal
03/19/2026 07 AM PDT 1.39 613 0 Normal
03/19/2026 08 AM PDT 1.38 608 - Normal
03/19/2026 09 AM PDT 1.38 608 0 Normal
03/19/2026 10 AM PDT 1.38 608 0 Normal
03/19/2026 11 AM PDT 1.38 608 0 Normal
03/19/2026 12 PM PDT 1.38 608 0 Normal
03/19/2026 01 PM PDT 1.37 604 - Normal
03/19/2026 02 PM PDT 1.37 604 0 Normal
03/19/2026 03 PM PDT 1.37 604 0 Normal
03/19/2026 04 PM PDT 1.37 604 0 Normal
03/19/2026 05 PM PDT 1.36 600 - Normal
03/19/2026 06 PM PDT 1.36 600 0 Normal
03/19/2026 07 PM PDT 1.36 600 0 Normal
03/19/2026 08 PM PDT 1.36 600 0 Normal
03/19/2026 09 PM PDT 1.36 600 0 Normal
03/19/2026 10 PM PDT 1.35 596 - Normal
03/19/2026 11 PM PDT 1.35 596 0 Normal
03/20/2026 12 AM PDT 1.35 596 0 Normal
03/20/2026 01 AM PDT 1.35 596 0 Normal
03/20/2026 02 AM PDT 1.35 596 0 Normal
03/20/2026 03 AM PDT 1.34 592 - Normal
03/20/2026 04 AM PDT 1.34 592 0 Normal
03/20/2026 05 AM PDT 1.34 592 0 Normal
03/20/2026 06 AM PDT 1.34 592 0 Normal
03/20/2026 07 AM PDT 1.34 592 0 Normal
03/20/2026 08 AM PDT 1.34 592 0 Normal
03/20/2026 09 AM PDT 1.33 588 - Normal
03/20/2026 10 AM PDT 1.33 588 0 Normal
03/20/2026 11 AM PDT 1.33 588 0 Normal
03/20/2026 12 PM PDT 1.33 588 0 Normal
03/20/2026 01 PM PDT 1.33 588 0 Normal
03/20/2026 02 PM PDT 1.32 584 - Normal
03/20/2026 03 PM PDT 1.32 584 0 Normal
03/20/2026 04 PM PDT 1.32 584 0 Normal
03/20/2026 05 PM PDT 1.32 584 0 Normal
03/20/2026 06 PM PDT 1.32 584 0 Normal
03/20/2026 07 PM PDT 1.32 584 0 Normal
03/20/2026 08 PM PDT 1.31 580 - Normal
03/20/2026 09 PM PDT 1.31 580 0 Normal
03/20/2026 10 PM PDT 1.31 580 0 Normal
03/20/2026 11 PM PDT 1.31 580 0 Normal
03/21/2026 12 AM PDT 1.31 580 0 Normal
03/21/2026 01 AM PDT 1.31 580 0 Normal
03/21/2026 02 AM PDT 1.30 576 - Normal
03/21/2026 03 AM PDT 1.30 576 0 Normal
03/21/2026 04 AM PDT 1.30 576 0 Normal
03/21/2026 05 AM PDT 1.30 576 0 Normal
03/21/2026 06 AM PDT 1.30 576 0 Normal
03/21/2026 07 AM PDT 1.29 572 - Normal
03/21/2026 08 AM PDT 1.29 572 0 Normal
03/21/2026 09 AM PDT 1.29 572 0 Normal
03/21/2026 10 AM PDT 1.29 572 0 Normal
03/21/2026 11 AM PDT 1.29 572 0 Normal
03/21/2026 12 PM PDT 1.29 572 0 Normal
03/21/2026 01 PM PDT 1.28 569 - Normal
03/21/2026 02 PM PDT 1.28 569 0 Normal
03/21/2026 03 PM PDT 1.28 569 0 Normal
03/21/2026 04 PM PDT 1.28 569 0 Normal
03/21/2026 05 PM PDT 1.28 569 0 Normal
03/21/2026 06 PM PDT 1.28 569 0 Normal
03/21/2026 07 PM PDT 1.27 565 - Normal
03/21/2026 08 PM PDT 1.27 565 0 Normal
03/21/2026 09 PM PDT 1.27 565 0 Normal
03/21/2026 10 PM PDT 1.27 565 0 Normal
03/21/2026 11 PM PDT 1.27 565 0 Normal
03/22/2026 12 AM PDT 1.27 565 0 Normal
03/22/2026 01 AM PDT 1.27 565 0 Normal
03/22/2026 02 AM PDT 1.26 561 - Normal
03/22/2026 03 AM PDT 1.26 561 0 Normal
03/22/2026 04 AM PDT 1.26 561 0 Normal
03/22/2026 05 AM PDT 1.26 561 0 Normal
03/22/2026 06 AM PDT 1.26 561 0 Normal
03/22/2026 07 AM PDT 1.26 561 0 Normal
03/22/2026 08 AM PDT 1.25 557 - Normal
03/22/2026 09 AM PDT 1.25 557 0 Normal
03/22/2026 10 AM PDT 1.25 557 0 Normal
03/22/2026 11 AM PDT 1.25 557 0 Normal
03/22/2026 12 PM PDT 1.25 557 0 Normal
03/22/2026 01 PM PDT 1.25 557 0 Normal
03/22/2026 02 PM PDT 1.25 557 0 Normal
03/22/2026 03 PM PDT 1.24 553 - Normal
03/22/2026 04 PM PDT 1.24 553 0 Normal
03/22/2026 05 PM PDT 1.24 553 0 Normal
03/22/2026 06 PM PDT 1.24 553 0 Normal
03/22/2026 07 PM PDT 1.24 553 0 Normal
03/22/2026 08 PM PDT 1.24 553 0 Normal
03/22/2026 09 PM PDT 1.24 553 0 Normal
03/22/2026 10 PM PDT 1.23 549 - Normal
03/22/2026 11 PM PDT 1.23 549 0 Normal
03/23/2026 12 AM PDT 1.23 549 0 Normal
03/23/2026 01 AM PDT 1.23 549 0 Normal
03/23/2026 02 AM PDT 1.23 549 0 Normal
03/23/2026 03 AM PDT 1.23 549 0 Normal
03/23/2026 04 AM PDT 1.23 549 0 Normal
03/23/2026 05 AM PDT 1.22 545 - 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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