CPC released their latest seasonal outlooks yesterday. These are based on overlapping 3-month periods. For November to January and December to February, all or nearly all of Utah is in "equal chances" for precipitation, which means there is no significant shift in the odds for below normal, near normal, or above normal compared to climatology.
| Source: https://www.cpc.ncep.noaa.gov/products/predictions/90day/ |
In other words, that period could go any way. There's no useful skill.
Later in the winter, during January to March and February to April, most of Utah is in the first level of "above normal" or, in the case of southern Utah, especially later in the winter, in the second level. For southern Utah, this means there is an increase in the odds of above normal precipitation to 40-50%. For northern Utah, that shift is much smaller and perhaps to around 35% or so for the Wasatch Range.
| Source: https://www.cpc.ncep.noaa.gov/products/predictions/90day/ |
In other words, something like a 36% chance of above normal, 33% of normal, and 31% of below normal.
The long and short of this is that the far southwest has the highest likelihoods of above normal. These odds decline and northern Utah is pretty much in a spot where there is not a lot of weighting of the dice. The outlook this year largely reflects historical influences of El Nino and strong El Ninos, although predictions by climate forecast systems (numerical models that forecast several months in advance), and other tools.
So, whether we see an above average snow season in the Wasatch this winter is still pretty much up in the air. My advice is to just ignore all these predictions for the Wasatch and spend that time getting into shape and enjoying the outdoors.
Just let it be a normal, 500in at alta watershed, winter. Not asking for 92/93 or 95/96 just a avg winter w snow in the valley. Not working in the backyard all winter in a tshirt.
ReplyDeleteI'd rather 800" at Alta and 0" in SLC,, but that's just me being selfish
DeleteIf you look at the November-April (ski season) precipitation departure from normal for the five (65-66, 72-73, 82-83, 97-98, 15-16) very strong El Niño years since 1950 it paints a picture worth looking at. I wish I could post the map here, my latest X post has the map https://x.com/scotchipman
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