Snowpack Season in the West Is Off to a Solid Start, But…

by Mark McGlothlin on November 23, 2015

in Inquiring Minds Want to Know

SWE_MT_23Nov

It’s snowpack season in the Western US and for late November, things are off to a pretty decent start as you can see from the maps (as of today 23 November) above for Montana and for the West in general below.

SNWE_West_23Nov

Values report are precent of normal snow water equivalent for this date; of course it’s damned early in the Western snowpack water year and things can – and probably will – change.

Here’s the ‘But’

Weather gurus are still projecting a warmer and drier winter (as compared to normal / average) for the Northern Rockies; the graphic below is the precipitation forecast for the December-January-February window, which coincides with the peak of the El Nino now in place.

Climate-Precip-DJF-Nov15

The most current El Nino report (Actually the ENSO: Recent Evolution, Current Status and Predictions report) was released by NOAH’s Climate Prediction Center today – read it here.

The final image is taken from that very report, and gives the probabilities of the persistence of the El Nino by rolling quarter, giving a bit of hope for some late winter / early spring snow season catch up in 2016 as the El Nino begins to break down fairly rapidly.

El-Nino-Prob-23Nov15

Time will tell.

Meanwhile, keep doing that snow dance.