The NWS Des Moines issued their first Winter Storm Warning of the season last week for the heavy snowfall event. This was the first such warning of the season and it came a bit sooner than recent year's average first date as indicated by the featured chart. The chart shows the period between the first and last Winter Storm Warning each winter season. The year shown is for the fall season portion of the season. Only 3 of the past 11 years are shown to have had such a warning in November. Of course, the plot also shows that there is plenty of winter season left with 4 more months of such warnings possible!

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Tags:   warnings