Streamflow Drought Duration 2020 & 2021

A time series of streamflow drought events occurring across 122 stream gages in the Upper Colorado River basin for 2020 through October 1, 2021. At the beginning of 2020 few gages were in drought status, but as the 2020 summer proceeded there was a surge in drought conditions continuing through the end of 2021. Around 10 different gages have had periods of drought exceeding 100 days. Drought conditions peaked in Oct 2020 with approximately 40 out of 122 gages experiencing drought simultaneously, and some continuing in drought status for as long as a year.