The NWS issues Watch, Warnings, and Advisories (WaWA) for the protection of life and property. The featured chart attempts to summarize the currently active events by summing the number of people currently under the given alert type. This is computed by intersecting the active alert geometries with a 30 arc second grid population estimate from 2020. Presently, winter weather headlines stretch from Texas to New England as a powerful winter storm looks to paint a stripe of heavy snowfall and significant ice accumulations. At this point, most of Iowa will miss out on this storm with the significant impacts passing just to our south, but far southeastern Iowa will be clipped by the storm. You can generate this summary chart for any valid timestamp you want back to October 2005, which is when more programmatic WaWA alerts began to be issued by the NWS.

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Tags:   population