Meteorologist Jim Woodmencey Summer will officially begin tonight, June 20th at 11:04 pm MDT (Mountain Daylight Time). That is the exact time of the Summer Solstice, the exact moment that the sun is directly overhead at the Tropic of Cancer, 23.5 degrees North latitude. That means Friday, June 21st will be the first full-day of … Continue reading The Summer Solstice →

Meteorologist Jim Woodmencey I received a number of very cool photos from the severe thunderstorm that passed through Jackson Hole on Wednesday afternoon June 12th. Below is a collection of some of those photos. There was also another strong thunderstorm the following evening, Thursday June 13th that produced strong wind gusts and some rain, while … Continue reading More Storm Photos from June 12, 2013 →

Meteorologist Jim Woodmencey As much as I hate to sensationalize the weather, this afternoon’s thunderstorms were pretty cool to observe. Between 3:30 and 4:00 pm  a series of thunderstorms moved through the Jackson Hole area that produced hail 3/4 of an inch to one inch in diameter, measured in the Town of Jackson. While we … Continue reading Severe Thunderstorm in Jackson Hole →

Jim Woodmencey, meteorologist Temperatures will be warming up pretty significantly around the Western US the rest of this week and into early next week (June 5 to 11) not just at the lower elevations but also up at higher elevations, were there is still significant snow to melt above about the 9,000-ft. elevation. At around … Continue reading Snowpack to go into Meltdown Mode →

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? →