Verkkothe aviation weather center (awc) provides weather information and forecasts for air flights over united states territory and at certain altitudes for global traffic. Verkkohourly model data and forecasts, including information on clouds, flight category, precipitation, icing, turbulence, wind, and graphical output from the. Where to find things. Check out the help pages for more on how everything is organized. The interface below can be used to learn more about available data, configure. To view products on the site as they appeared at a previous point in time, select a date and time using the form below. All data will displayed approximately as.