At this writing, a “Polar Vortex” is invading the Upper Midwestern US. Temperatures are peaking in the Twin Cities of Minnesota at -11 F give or take a few degrees. Although this temperature is a wee-bit extreme for even the hardiest of souls, Momentum Environmental recently explored how they could capitalize on the long winter months in Minnesota to rapidly map municipal stormwater basins. Local municipalities across the US are looking for cost-effective ways to rapidly inventory their stormwater basin infrastructure to ensure compliance with new State and Federal mandates.