Finding the right weather in the Himalaya climbing region is critical. Looking at weather maps is key and looking at 500 mb maps (at about 18,000 feet) and at 300 mb (close to 30,000 feet) is critical as these are the steering mechanisms.  During the climbing season I spend close to 3 to 4 hours a day looking at up 6 forecast models.  One such map is the 200 mb (close to 35,000 to 37,000 feet). Map below shows strong jet stream winds over most of Nepal. This would not be good climbing weather!

Himalayan Weather
Winds at 200 mb close to 35,000 foot level close 140 knots

This content is provided by Operational Meteorologist Michael Fagin of Everest Weather. Contact us if you would like some weather information on Mt. Everest climbing or trekking region.