A Map of Every Tornado Since 1950

As part of development at the Esri R&D Center in DC, we've been working on new ways to visualize large amounts of data on a map. Large datasets present several challenges. Simply how to »

Map: Colorado Rainfall Totals July 30, 2014

Below is a map rainfall totals as of this morning from the CoCoRaHS network. These are two day totals (yesterday and today) and will be updated »

Tornadoes in June Not Uncommon for Colorado

There was a lot of buzz yesterday about the active tornado season Colorado is experiencing, and while it has been active, tornadoes in June are very »

Spring Storm Recap

Our latest spring storm is now well east of the area, bringing snow to Kansas and as far south as Oklahoma City this morning. While some »

Map: April 3, 2014 Colorado Snowfall Totals

Updated: Thursday 9:45am, April 3, 2014 Snowfall totals are ranging from about 1 inch at lower elevations to nearly 17" near Black Hawk this morning. »

Snow on the Ground in Every State but Florida

The latest analysis from the National Operational Hydrologic Remote Sensing Center tells so much of how this winter has been: cold and snowy from the Rockies »