IEM Daily Feature
Wednesday, 19 April 2017
Wednesday, 19 April 2017
Last Tornado Warning Polygon
Posted: 19 Apr 2017 04:21 AM
Since October 2007, the National Weather Service's official Tornado Warning was
geographically represented by a single polygon. These polygons are also associated with
the counties they occupy and often the counties are what is reported. Anyway, just
considering the polygons the featured map displays the year of last tornado warning based
on the polygon coverage. While the polygons were not official prior to 2007, they were
issued experimentally and are included in this analysis. The potpourri style map shows that
some areas of the state have missed all the tornado warnings since 2003! There is a
tornado threat in the state today, so hopefully this map does not change (meaning no new
warnings) if you generate it tomorrow via the website. You can also generate this map for
other states and also isolated to single NWS Forecast Offices.
Voting:
Good = 21
Bad = 0
Tags: tornado
Voting:
Good = 21
Bad = 0
Tags: tornado