The IEM website attempts to produce products and curate archives useful for research at ISU and beyond. One of the seemingly Internet unique archives is of National Weather Service Terminal Aerodome Forecasts (TAF)s. The NWS issues forecasts tailored for the aviation industry for many airports. These forecasts include wind speeds, visibility, and ceilings/cloud cover. The featured infographic attempts to summarize a TAF issued by NWS Des Moines for the Des Moines Airport from Tuesday afternoon into Wednesday afternoon. It shows strong winds and wind shear on Wednesday, but not much cloud concerns with the computed flight condition of VFR shown for most of the day. You can find archives of raw TAF text and processed data for download. There is also a more programatic TAF API service available as well.

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