San Juan River Outlook

In contrast to the much below average precipitation last month, much above average precipitation was reported in April. Snowpack increased 35% from April 1 to an overall 90% of average which led to a 35% increase in the April through July volume forecasts.

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

San Juan River:
Below Average

Water Supply Outlook for the Upper Colorado - May, 1999
Colorado Basin River Forecast Center (
Last Modified: Thursday, 06-May-1999 21:39:33 UTC