Upper Henry's Fork snowpack remains below average

Photo of Rainbow Trout with snow in background.

Eight days ago, snow-water-equivalent (SWE) in the Upper Henry's Fork subwatershed was 91% of the long-term median. One snowy day and seven dry days later, Upper Henry's Fork SWE is still at 91% of median. SWE is 120% of median in the Fall River subwatershed (down from 123% eight days ago) and 124% of median in the Teton River subwatershed (down from 130% eight days ago). Current forecasts call for near-average precipitation over the next five days, followed by below-average precipitation for several weeks after that.

Graphs of percent-of-median SWE in the three subwatersheds of the Henry's Fork watershed.

Graph above shows percent-of-median SWE since November 1 in the three subwatersheds of the Henry's Fork watershed. Also shown is the percent-of-median SWE for the Henry's Fork and Teton Basins, as reported in the Natural Resources Conservation Service (NRCS) daily snow/precipitation report. Table below shows data for individual sites, as well as the subwatersheds and the NRCS Henry's Fork and Teton Basins.

Table showing SWE in relation to median at nine sites that indicate water supply in the Henry's Fork watershed.

To see how we use raw data from the NRCS SnoTel website and calculate the numbers in the graph and table above, download our SWE methods document.

If you would like to receive daily updates of this graph and table via email, send a message to Rob at rob@henrysfork.org with "SWE request" in the subject line.