Jim Woodmencey, meteorologist Powder skiing in late May? Well, that might seem like a bit of a stretch, but we are actually accumulating a little snow this week at the higher elevations in the Teton Mountains, above about 9500-ft. the last 24-hours. Snow levels will probably get down closer to 8,000-ft. as overnight temps get … Continue reading Powder not Corn →

Isolated thunderstorms that developed Wednesday afternoon produced some fairly impressive wind gusts in some areas around the valley. These were downdrafts coming down from the base of the thunderstorms, which then spread out horizontally as they come in contact with the ground.Strong downdraft winds are more common with dry-type thunderstorms, in other words, ones that … Continue reading Wednesday’s Wind Gusts →

Happy Mother’s Day! And a nice day it should be, with what may be our first “official” day this year with a high temperature over 70 degrees. At the Jackson Climate Station the high temp the last two days almost made it to 70, with a high Saturday of 67 and the high Friday of … Continue reading First Day to 70 in Jackson →

Last week I had the opportunity to work with a group of US Air Force Special Operations guys from the 10th Combat Weather Squadron on an avalanche course here in Jackson. This course was run in conjunction with the American Avalanche Institute. Guide and instructor Christian Santelices (a local Exum Mountain Guide) and Sarah Carpenter … Continue reading →

On this first full day of the Spring Season I would like to give you a preview of a new page dedicated to Wyoming’s Weather. I am in the process of making some changes to the mountainweather.com website, and will be doing some re-arranging of the Navigation. A little “spring cleaning”, if you will. As … Continue reading New Wyoming Weather Page →

Spring officially began today, Wednesday March 20, 2013 at 5:02 a.m. MDT.  According to the calendar it’s Spring, but our weather the next few days will be more like mid-winter! Large storm system over the Pacific Northwest and Northern Rockies bringing snow  then cold temps thru the weekend. No sign of warming back up until … Continue reading First Day of Spring? →

Don’t like to read? You can now listen to MountainWeather’s Jackson Hole Forecast, anywhere, anytime. New audio version of the forecast is now available ………look for the audio button on the Jackson Hole Forecast page on both the main MountainWeather.com site and the mobile version of the website. Listen on your computer, or your smartphone, … Continue reading Listen to the Forecast →

Hope you enjoyed the Spring weather this week, back to Winter weather in the Pacific Northwest  & northern Rockies for Saint Patrick’s Day Weekend. The Ridge of High pressure that brought warm & dry weather this past week to the West & Rockies  gets flattened out and a Westerly flow develops from the Pacific Northwest … Continue reading Spring to Winter to Spring: Snow for St. Patty’s Day! →

As the old saying goes, “If March comes in like a Lion, it will go out like a Lamb”, and vice-versa. In other words, if the weather is winter-like and stormy to start the month, it will end with milder, more spring-like weather. Or, the opposite could be true, if it comes in like spring … Continue reading March 2013: Lion Rides in on a Lamb →

The Climate Prediction Center or “CPC” (a division of NOAA and the National Weather Service) is responsible for producing our long-range outlooks. For the next three months they are showing that the Pacific Northwest will be about the only place in the USA that has a good probability of experiencing below normal temps. Nowhere in … Continue reading Second Half of Winter Outlook →