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TRUCKEE RIVER - BELOW DERBY DAM (TBDN2)
| Latitude: 39.58º N | Longitude: 119.44º W | Elevation: 4200 Feet | | Forecast Type: Unofficial Location |
| Location: Storey County in Nevada | Bulletin Group: Eastern Sierra | River Group: Eastern Sierra |
| Issuance Time: | May 19 2026 at 7:41 AM PDT | Next Issuance: | May 20 2026 at 9:00 AM PDT
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| Action/Monitor: 10.0 Feet | Minor Flood: 11.0 Feet | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Truckee River - Below Derby Dam (TBDN2)
#
# File Generation Time: 05/19/2026 at 07:42 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/14/2026 at 02:00 PM PDT
# Maximum Observed Stage: 3.94 Feet
# Maximum Observed Flow: 789 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/19/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 3.79 Feet
# Maximum Forecast Flow: 723 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/14/2026 07 AM PDT 3.88 762 Normal
05/14/2026 08 AM PDT 3.86 753 - Normal
05/14/2026 09 AM PDT 3.87 758 + Normal
05/14/2026 10 AM PDT 3.89 766 + Normal
05/14/2026 11 AM PDT 3.91 775 + Normal
05/14/2026 12 PM PDT 3.94 789 + Normal
05/14/2026 01 PM PDT 3.93 784 - Normal
05/14/2026 02 PM PDT 3.94 789 + Normal
05/14/2026 03 PM PDT 3.89 766 - Normal
05/14/2026 04 PM PDT 3.91 775 + Normal
05/14/2026 05 PM PDT 3.92 780 + Normal
05/14/2026 06 PM PDT 3.92 780 0 Normal
05/14/2026 07 PM PDT 3.91 775 - Normal
05/14/2026 08 PM PDT 3.87 758 - Normal
05/14/2026 09 PM PDT 3.86 753 - Normal
05/14/2026 10 PM PDT 3.86 753 0 Normal
05/14/2026 11 PM PDT 3.86 753 0 Normal
05/15/2026 12 AM PDT 3.87 758 + Normal
05/15/2026 01 AM PDT 3.87 758 0 Normal
05/15/2026 02 AM PDT 3.84 745 - Normal
05/15/2026 03 AM PDT 3.83 740 - Normal
05/15/2026 04 AM PDT 3.83 740 0 Normal
05/15/2026 05 AM PDT 3.79 723 - Normal
05/15/2026 06 AM PDT 3.80 727 + Normal
05/15/2026 07 AM PDT 3.78 719 - Normal
05/15/2026 08 AM PDT 3.80 727 + Normal
05/15/2026 09 AM PDT 3.81 732 + Normal
05/15/2026 10 AM PDT 3.83 740 + Normal
05/15/2026 11 AM PDT 3.83 740 0 Normal
05/15/2026 12 PM PDT 3.87 758 + Normal
05/15/2026 01 PM PDT 3.86 753 - Normal
05/15/2026 02 PM PDT 3.89 766 + Normal
05/15/2026 03 PM PDT 3.91 775 + Normal
05/15/2026 04 PM PDT 3.89 766 - Normal
05/15/2026 05 PM PDT 3.85 749 - Normal
05/15/2026 06 PM PDT 3.85 749 0 Normal
05/15/2026 07 PM PDT 3.85 749 0 Normal
05/15/2026 08 PM PDT 3.83 740 - Normal
05/15/2026 09 PM PDT 3.83 740 0 Normal
05/15/2026 10 PM PDT 3.83 740 0 Normal
05/15/2026 11 PM PDT 3.82 736 - Normal
05/16/2026 12 AM PDT 3.79 723 - Normal
05/16/2026 01 AM PDT 3.77 714 - Normal
05/16/2026 02 AM PDT 3.79 723 + Normal
05/16/2026 03 AM PDT 3.76 710 - Normal
05/16/2026 04 AM PDT 3.75 706 - Normal
05/16/2026 05 AM PDT 3.75 706 0 Normal
05/16/2026 06 AM PDT 3.75 706 0 Normal
05/16/2026 07 AM PDT 3.73 698 - Normal
05/16/2026 08 AM PDT 3.72 693 - Normal
05/16/2026 09 AM PDT 3.73 698 + Normal
05/16/2026 10 AM PDT 3.71 689 - Normal
05/16/2026 11 AM PDT 3.74 702 + Normal
05/16/2026 12 PM PDT 3.77 714 + Normal
05/16/2026 01 PM PDT 3.77 714 0 Normal
05/16/2026 02 PM PDT 3.80 727 + Normal
05/16/2026 03 PM PDT 3.79 723 - Normal
05/16/2026 04 PM PDT 3.77 714 - Normal
05/16/2026 05 PM PDT 3.78 719 + Normal
05/16/2026 06 PM PDT 3.76 710 - Normal
05/16/2026 07 PM PDT 3.76 710 0 Normal
05/16/2026 08 PM PDT 3.75 706 - Normal
05/16/2026 09 PM PDT 3.74 702 - Normal
05/16/2026 10 PM PDT 3.73 698 - Normal
05/16/2026 11 PM PDT 3.75 706 + Normal
05/17/2026 12 AM PDT 3.74 702 - Normal
05/17/2026 01 AM PDT 3.71 689 - Normal
05/17/2026 02 AM PDT 3.71 689 0 Normal
05/17/2026 03 AM PDT 3.75 706 + Normal
05/17/2026 04 AM PDT 3.73 698 - Normal
05/17/2026 05 AM PDT 3.76 710 + Normal
05/17/2026 06 AM PDT 3.76 710 0 Normal
05/17/2026 07 AM PDT 3.76 710 0 Normal
05/17/2026 08 AM PDT 3.75 706 - Normal
05/17/2026 09 AM PDT 3.73 698 - Normal
05/17/2026 10 AM PDT 3.73 698 0 Normal
05/17/2026 11 AM PDT 3.72 693 - Normal
05/17/2026 12 PM PDT 3.72 693 0 Normal
05/17/2026 01 PM PDT 3.75 706 + Normal
05/17/2026 02 PM PDT 3.76 710 + Normal
05/17/2026 03 PM PDT 3.75 706 - Normal
05/17/2026 04 PM PDT 3.72 693 - Normal
05/17/2026 05 PM PDT 3.73 698 + Normal
05/17/2026 06 PM PDT 3.72 693 - Normal
05/17/2026 07 PM PDT 3.73 698 + Normal
05/17/2026 08 PM PDT 3.70 685 - Normal
05/17/2026 09 PM PDT 3.68 677 - Normal
05/17/2026 10 PM PDT 3.69 681 + Normal
05/17/2026 11 PM PDT 3.70 685 + Normal
05/18/2026 12 AM PDT 3.73 698 + Normal
05/18/2026 01 AM PDT 3.75 706 + Normal
05/18/2026 02 AM PDT 3.76 710 + Normal
05/18/2026 03 AM PDT 3.75 706 - Normal
05/18/2026 04 AM PDT 3.74 702 - Normal
05/18/2026 05 AM PDT 3.74 702 0 Normal
05/18/2026 06 AM PDT 3.73 698 - Normal
05/18/2026 07 AM PDT 3.73 698 0 Normal
05/18/2026 08 AM PDT 3.71 689 - Normal
05/18/2026 09 AM PDT 3.74 702 + Normal
05/18/2026 10 AM PDT 3.75 706 + Normal
05/18/2026 11 AM PDT 3.75 706 0 Normal
05/18/2026 12 PM PDT 3.75 706 0 Normal
05/18/2026 01 PM PDT 3.75 706 0 Normal
05/18/2026 02 PM PDT 3.77 714 + Normal
05/18/2026 03 PM PDT 3.75 706 - Normal
05/18/2026 04 PM PDT 3.76 710 + Normal
05/18/2026 05 PM PDT 3.76 710 0 Normal
05/18/2026 06 PM PDT 3.74 702 - Normal
05/18/2026 07 PM PDT 3.74 702 0 Normal
05/18/2026 08 PM PDT 3.71 689 - Normal
05/18/2026 09 PM PDT 3.71 689 0 Normal
05/18/2026 10 PM PDT 3.75 706 + Normal
05/18/2026 11 PM PDT 3.75 706 0 Normal
05/19/2026 12 AM PDT 3.77 714 + Normal
05/19/2026 01 AM PDT 3.82 736 + Normal
05/19/2026 02 AM PDT 3.83 740 + Normal
05/19/2026 03 AM PDT 3.82 736 - Normal
05/19/2026 04 AM PDT 3.81 732 - Normal
05/19/2026 05 AM PDT 3.79 723 - Normal
05/19/2026 06 AM PDT 3.80 727 + Normal
05/19/2026 07 AM PDT 3.80 727 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/19/2026 08 AM PDT 3.79 723 Normal
05/19/2026 09 AM PDT 3.78 719 - Normal
05/19/2026 10 AM PDT 3.77 714 - Normal
05/19/2026 11 AM PDT 3.75 706 - Normal
05/19/2026 12 PM PDT 3.74 702 - Normal
05/19/2026 01 PM PDT 3.72 693 - Normal
05/19/2026 02 PM PDT 3.71 689 - Normal
05/19/2026 03 PM PDT 3.70 685 - Normal
05/19/2026 04 PM PDT 3.70 685 0 Normal
05/19/2026 05 PM PDT 3.70 685 0 Normal
05/19/2026 06 PM PDT 3.70 685 0 Normal
05/19/2026 07 PM PDT 3.70 685 0 Normal
05/19/2026 08 PM PDT 3.70 685 0 Normal
05/19/2026 09 PM PDT 3.70 685 0 Normal
05/19/2026 10 PM PDT 3.69 681 - Normal
05/19/2026 11 PM PDT 3.69 681 0 Normal
05/20/2026 12 AM PDT 3.69 681 0 Normal
05/20/2026 01 AM PDT 3.69 681 0 Normal
05/20/2026 02 AM PDT 3.68 677 - Normal
05/20/2026 03 AM PDT 3.68 677 0 Normal
05/20/2026 04 AM PDT 3.68 677 0 Normal
05/20/2026 05 AM PDT 3.67 673 - Normal
05/20/2026 06 AM PDT 3.67 673 0 Normal
05/20/2026 07 AM PDT 3.67 673 0 Normal
05/20/2026 08 AM PDT 3.67 673 0 Normal
05/20/2026 09 AM PDT 3.67 673 0 Normal
05/20/2026 10 AM PDT 3.67 673 0 Normal
05/20/2026 11 AM PDT 3.67 673 0 Normal
05/20/2026 12 PM PDT 3.66 669 - Normal
05/20/2026 01 PM PDT 3.66 669 0 Normal
05/20/2026 02 PM PDT 3.66 669 0 Normal
05/20/2026 03 PM PDT 3.66 669 0 Normal
05/20/2026 04 PM PDT 3.66 669 0 Normal
05/20/2026 05 PM PDT 3.66 669 0 Normal
05/20/2026 06 PM PDT 3.66 669 0 Normal
05/20/2026 07 PM PDT 3.66 669 0 Normal
05/20/2026 08 PM PDT 3.66 669 0 Normal
05/20/2026 09 PM PDT 3.66 669 0 Normal
05/20/2026 10 PM PDT 3.66 669 0 Normal
05/20/2026 11 PM PDT 3.66 669 0 Normal
05/21/2026 12 AM PDT 3.66 669 0 Normal
05/21/2026 01 AM PDT 3.65 664 - Normal
05/21/2026 02 AM PDT 3.65 664 0 Normal
05/21/2026 03 AM PDT 3.65 664 0 Normal
05/21/2026 04 AM PDT 3.65 664 0 Normal
05/21/2026 05 AM PDT 3.65 664 0 Normal
05/21/2026 06 AM PDT 3.64 660 - Normal
05/21/2026 07 AM PDT 3.64 660 0 Normal
05/21/2026 08 AM PDT 3.64 660 0 Normal
05/21/2026 09 AM PDT 3.64 660 0 Normal
05/21/2026 10 AM PDT 3.64 660 0 Normal
05/21/2026 11 AM PDT 3.63 656 - Normal
05/21/2026 12 PM PDT 3.63 656 0 Normal
05/21/2026 01 PM PDT 3.63 656 0 Normal
05/21/2026 02 PM PDT 3.63 656 0 Normal
05/21/2026 03 PM PDT 3.63 656 0 Normal
05/21/2026 04 PM PDT 3.63 656 0 Normal
05/21/2026 05 PM PDT 3.63 656 0 Normal
05/21/2026 06 PM PDT 3.63 656 0 Normal
05/21/2026 07 PM PDT 3.63 656 0 Normal
05/21/2026 08 PM PDT 3.63 656 0 Normal
05/21/2026 09 PM PDT 3.63 656 0 Normal
05/21/2026 10 PM PDT 3.63 656 0 Normal
05/21/2026 11 PM PDT 3.63 656 0 Normal
05/22/2026 12 AM PDT 3.63 656 0 Normal
05/22/2026 01 AM PDT 3.62 652 - Normal
05/22/2026 02 AM PDT 3.62 652 0 Normal
05/22/2026 03 AM PDT 3.62 652 0 Normal
05/22/2026 04 AM PDT 3.62 652 0 Normal
05/22/2026 05 AM PDT 3.62 652 0 Normal
05/22/2026 06 AM PDT 3.61 648 - Normal
05/22/2026 07 AM PDT 3.61 648 0 Normal
05/22/2026 08 AM PDT 3.61 648 0 Normal
05/22/2026 09 AM PDT 3.61 648 0 Normal
05/22/2026 10 AM PDT 3.61 648 0 Normal
05/22/2026 11 AM PDT 3.61 648 0 Normal
05/22/2026 12 PM PDT 3.61 648 0 Normal
05/22/2026 01 PM PDT 3.61 648 0 Normal
05/22/2026 02 PM PDT 3.62 652 + Normal
05/22/2026 03 PM PDT 3.62 652 0 Normal
05/22/2026 04 PM PDT 3.61 648 - Normal
05/22/2026 05 PM PDT 3.61 648 0 Normal
05/22/2026 06 PM PDT 3.61 648 0 Normal
05/22/2026 07 PM PDT 3.61 648 0 Normal
05/22/2026 08 PM PDT 3.61 648 0 Normal
05/22/2026 09 PM PDT 3.61 648 0 Normal
05/22/2026 10 PM PDT 3.61 648 0 Normal
05/22/2026 11 PM PDT 3.60 644 - Normal
05/23/2026 12 AM PDT 3.60 644 0 Normal
05/23/2026 01 AM PDT 3.60 644 0 Normal
05/23/2026 02 AM PDT 3.60 644 0 Normal
05/23/2026 03 AM PDT 3.60 644 0 Normal
05/23/2026 04 AM PDT 3.60 644 0 Normal
05/23/2026 05 AM PDT 3.60 644 0 Normal
05/23/2026 06 AM PDT 3.59 640 - Normal
05/23/2026 07 AM PDT 3.59 640 0 Normal
05/23/2026 08 AM PDT 3.59 640 0 Normal
05/23/2026 09 AM PDT 3.59 640 0 Normal
05/23/2026 10 AM PDT 3.59 640 0 Normal
05/23/2026 11 AM PDT 3.59 640 0 Normal
05/23/2026 12 PM PDT 3.58 636 - Normal
05/23/2026 01 PM PDT 3.58 636 0 Normal
05/23/2026 02 PM PDT 3.58 636 0 Normal
05/23/2026 03 PM PDT 3.58 636 0 Normal
05/23/2026 04 PM PDT 3.58 636 0 Normal
05/23/2026 05 PM PDT 3.58 636 0 Normal
05/23/2026 06 PM PDT 3.58 636 0 Normal
05/23/2026 07 PM PDT 3.58 636 0 Normal
05/23/2026 08 PM PDT 3.58 636 0 Normal
05/23/2026 09 PM PDT 3.58 636 0 Normal
05/23/2026 10 PM PDT 3.58 636 0 Normal
05/23/2026 11 PM PDT 3.57 632 - Normal
05/24/2026 12 AM PDT 3.57 632 0 Normal
05/24/2026 01 AM PDT 3.57 632 0 Normal
05/24/2026 02 AM PDT 3.57 632 0 Normal
05/24/2026 03 AM PDT 3.57 632 0 Normal
05/24/2026 04 AM PDT 3.56 628 - Normal
05/24/2026 05 AM PDT 3.56 628 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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