Charts

• Upper Colorado River Basin: Temperature

  2026-03-07 • 1 min read

  Upper Colorado Basin radial temperature pattern with current year, median, minimum, and maximum.

• Colorado River Natural Flow

  2026-03-07 • 4 min read

  Annual Lees Ferry natural flow (water year) from 1906 to present.

• Colorado River Basin Outline

  2026-03-07 • 1 min read

  First-pass D3 rendering of the Colorado River Basin outline from exported GeoJSON layers.

• Upper Colorado River Basin: Climate

  2026-03-06 • 1 min read

  Test page for reusable WTEQ, precipitation, and temperature chart modules sourced from the combined climate file.

• Lake Powell Water Year Elevation Overlay

  2026-03-06 • 1 min read

  Testing the water-year elevation overlay as a parameterized JS module import.

• Lake Powell Forecast: Water Balance

  2026-03-06 • 1 min read

  Initial water-balance chart scaffold showing current water-year storage to date with synced storage/elevation axes.

• Lake Powell Water Year Elevation Overlay

  2026-03-04 • 8 min read

  Overlay of Lake Powell elevation by water year day with selectable yearly series.

• Lake Powell: Forecast

  2026-02-26 • 16 min read

  Lake Powell forecast scenarios.

• Lake Powell Water Year Release Analysis

  2026-02-23 • 16 min read

  Water-year overlay analysis for Lake Powell releases, starting with cumulative release lines for all available years.

• Lake Powell Water Year Inflow Analysis

  2026-02-23 • 21 min read

  Water-year overlay analysis for Lake Powell inflows and releases, starting with cumulative inflow lines for all available years.

• Lake Powell Current Conditions and Operations

  2026-02-23 • 7 min read

  Establishing a clear current-state view of Lake Powell storage, elevation, inflows, and operations, with a framework for adding more explanatory datasets.

• Water Equivalent Data

  2026-02-22 • 1 min read

  Upper Colorado Region snow water equivalent (WTEQ) linear and date-linked yearly chart.

• Precipitation Data

  2026-02-22 • 1 min read

  Upper Colorado Region precipitation linear and date-linked yearly chart.

• Lake Powell Storage-Elevation Curve

  2026-02-21 • 4 min read

  Rebuilding the Lake Powell storage-elevation chart from the USGS 2022 curve dataset.

• Lake Powell Elevation Rendering

  2026-02-21 • 5 min read

  Starting over on Lake Powell elevation/tier rendering.

• Average Temperature: Upper Colorado River Basin

  2026-02-21 • 1 min read

  Chart of average air temperature for the Upper Colorado River Basin.

• Colorado River Climate Inflow Model

  2026-02-19 • 5 min read

  Modeling how Upper Colorado climate indicators map to Lake Powell inflows.

• Upper Colorado Region Climate Data

  2026-02-18 • 14 min read

  Working notes for climate and hydrology indicators across the Upper Colorado Region.

• Lower Colorado Region Climate Data

  2026-02-18 • 14 min read

  Working notes for climate and hydrology indicators across the Lower Colorado Region.

• Lake Powell Water Year Analysis

  2026-02-18 • 42 min read

  Water-year analysis for Lake Powell hydrology and operations.

• Colorado River Storage Project Analysis

  2026-02-17 • 18 min read

  Working analysis notes and chart-backed observations for major Colorado River Storage Project reservoirs.