San Juan River Outlook

Much above average precipitation in October, 200%, and November, 130%, was in contrast to much below average precipitation in December, 35%. Warm temperatures in December melted snow producing 140% of average flows. Most forecasts call for 65% to 85% of average flows.

April-July streamflow forecasts for the San Juan Basin are as follows:

San Juan River:
Below Average

Water Supply Outlook for the Upper Colorado - January, 1999
Colorado Basin River Forecast Center (
Last Modified: Thursday, 07-Jan-1999 23:01:22 UTC