FernWX
FernWX Lab Mode is a Research Preview, and can be disabled at any time. New sessions will default to the standard FernWX experience.

Discussions & Measurements

National Weather Service Area Forecast Discussions (AFD) and radiosonde upper-air soundings, preserved in the Weather Ledger with full provenance.

Radiosonde measurements

Upper-air soundings (weather-balloon ascents) for the selected location, collected by FernWX, backfilled from the IEM archive, or imported from IEM CSV/JSON exports.

Sounding

Select a sounding to view it.

Source: Iowa Environmental Mesonet (collected) or user import. A sounding is a point-in-time observation that may be tens of km from the requested location.