Warm and very dry conditions characterized May weather conditions throughout the Green River Basin. The majority of the snowpack was depleted in most areas with seasonal runoff peaks occurring by the end of the month. April-July runoff volume forecasts were decreased in the upper Green River Basin and adjusted slightly elsewhere. In general forecast runoff volumes remain in the 30%-70% range of the 1961-90 average with the exception of eastern parts of the Duchesne Basin where near average volumes are expected.
April-July streamflow forecasts for the Green River are as follows: