Yesterday I started seeing clouds ,wispy but clouds weather says no rain but I would watch if we start to see a build up and the clouds turn to a darker grey.?
Ok a person ask yesterday if it was cold on top , I answered mid 30's most likely at night , they ask if that was cold ? hard to answer question walking/moving with lite layers ,head cover , lite gloves and no wind upper body cover not pumping out your heat 30''s are often a gift vs hot days.
The problem is stopping to rest or eat ,30 is cold quick and above tree line as soon as the sun sets it is chilly .Low 40's and below sets you up for hypothermia, moving your body creates heat maybe 7-8 times of at rest plus your clothing may be moist from sweating and as you stop to cool down you open your wind breaker. So 30's become a serious concern, How long you stay at rest and are your retaining some of that generated heat? Notice often you will start to shiver after a few minutes of rest?
As with most of the issues outdoors it isn't the out it is the human element that hasn't been out in changing conditions or are prepare for the changes , going from sea level to alpine your body needs to be aware of all the levels of exposure you will encounter and you need to focus on these changes as you travel. Best way to train is be in the element , you can do body training that is great but the adaptation back to the outside is needed.
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