Status of El Nino/La Nina can produce predictable results
NWS March and Seasonal Forecast
Flood Insurance is an indicator of flood risk
The following communities all have over 200 policies (in order):
Boulder Denver Colorado Springs Boulder County La Plata County Larimer County Arvada El Paso County Jefferson County Lakewood Fort Collins Telluride Steamboat Springs Sterling Aurora Weld County Longmont Winter Park Arapahoe County Vail
Some Key Flood Points to Remember
Really big floods are not that uncommon (usually at least once per decade). Most would not have been anticipated 1-2 weeks in advance even with today's forecasting skill.
Colorado snowmelt is usually well behaved.
Snowmelt floods usually require prolonged very warm temperatures and/or widespread late season snowpack including snow on south facing slopes.
Most of Colorado’s worst floods are rainfall floods.