Back in late 2007, the National Weather Service switched to issuing Storm-Based Warnings instead of warnings for an entire county. The IEM continues to maintain an unofficial archive of these warnings with available applications including:

• daily summaries of all SBWs
• GIS Shapefiles for download
• IEM Cow (unofficial warning verfication)
• and the VTEC Browser for an interactive display.

The featured image is a portion of the daily summary image for 14 Apr 2009. Each warning is plotted with some crude summary stats provided.

Voting:
Good = 18
Bad = 8

Tags:   commercial