Project Windrose

This map combines NOAA hourly winds from 2021-2025 with a computed land-water fetch analysis to rank communities by how often their upwind air crosses enough open water.

Month Circle Color Datasets

Wind Temp Humidity

List Sort Minimum Over-Water Fetch

10 mi 15 mi 25 mi 30 mi 40 mi

Current minimum fetch: 25 miles

Show month-by-month top 5

Windrose Focus

Phones and tablets auto-consolidate windroses when the visible count gets too high.

List ranking uses route and confidence adjustments. Marker color follows the enabled dataset checks for the selected timeframe, with the worst enabled tier winning.

Show NOAA marine support stations

Method: NOAA hourly winds from 2021-2025, scored against a computed land-water fetch model built from Natural Earth coast and lake polygons over 15-48 N, 107-61 W.

Interpretation: Wind roses show where the wind comes from. Colors follow the share of winds whose upwind ray stays over water long enough to meet the active fetch threshold.

Filter: Fetch is traced in 1-mile steps by wind sector. Communities qualify when at least one sector clears 25 statute miles of water fetch and the first water is within 12 statute miles.

Stations: Wind and climate can use different NOAA hourly stations when a local island or beachfront climate source is available. Temperature is dry-bulb air temperature; humidity is derived from air temperature and dew point.

Confidence: Confidence tier A: station within 6 mi, B: within 15 mi, C: within 25 mi, D: farther than 25 mi.

Color rule: Green requires at least 60% qualifying over-water wind. Yellow-green marks 50% to under 60%. Yellow marks 40% to under 50%. Red is below 40% or fails route rules.