The IEM attempts to curate a rigorous accounting of the watch, warnings, and advisories issued by the National Weather Service. The NWS Offices serving Iowa have a new alert type this winter season called the Snow Squall Warning. It is abbreviated as SQ.W in their text product alerts. NWS Davenport issued such an alert on Monday for the quick hitting snowfall that was causing travel difficulties. The featured chart presents a yearly accounting of the unique number of tracked alert types issued by NWS Davenport. The number of distinctly used Valid TIme Event Codes (VTEC) phenomena and significance values per year is shown by the top panel and the bottom panel explicitly lists them out. Note that there are other alert types not covered by this presentation. This is for only those that contain VTEC.

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Tags:   vtec   nws