Tuesday, July 5, 2011

WBGT* Wet Bulb Globe Temperature Index

Started writting this on 6-24-2011

Thursday and Friday were hot with a heat index of 107 degrees, I know for some folks that maybe a normal high for where they live. Minnesota is known more for our cold and snow and after last winter with temperature well below zero for weeks at a time and that doesn't including the windchill factor. With the heat index that high I stayed inside with the A/C set at 78 degree's needless to say I didn't venture out at all. So I started thinking back to the best mistake I've made so far.

It was back in July of 1980 I had just graduated from High School and was waiting to hear about a full scholarship I was the first alternate on. The scholarship included paid on the job training, all classes as well as housing for up to 4 years to become a Forest Ranger, I had already meet all the requirements having worked for the Youth Conservation Corps in 1979 for six weeks and had passed the skill tests on conservation and plant identification, the only tests in my life I had or have gotten every answer a 100% right and  had been recommended by 2 crew leaders as well as the director and one of the ranger's that supervised work we had done. The last was a essay in at least 500 word on why I thought I would make a good Forest ranger. I knew the first six month's of the training would be in Washington State at a fire station and that my only human contact would more than likely be with the two trainers, after living through high school it sounded like haven to me anyway. So I didn't think for one minute that the person who got it would ever turn to down. I didn't want just a  job to pay the bills, I wanted a job I could be proud of having doing... Hell! I wanted the chance to become a Forest Ranger! Thinking I had no direction feeling lost and at my lowest point. The phone rang it was an Army recruiter long  story short,  I joined the U.S. Army serving the county. Now this fixed two problems I had at the same time. Now I had a job and a direction I could be proud of. Three weeks into my basic training, I called my mother that's when she told me the scholarship people had called, to let me know the scholarship was mine if I still wanted it. She let them know I had joined the Army. It was one of many paths I've not taken, I didn't and still don't regret my decision. Because it was the best choice I thought I had at the time I made it. At that time the only other choice I was told and believed I had was to find a job working for minimum wage for the rest of my life. Everything worked out the way it should. Learning a lesson that's still true today. Not everything I am told is the truth, when it come to that I capable of accomplishing and at times that also includes me! 

In less then 24 hours I was on a plane going to Basic training. When I got to Fort Jackson in South Carolina the Army used WBGT* index category for work and rest and being from Minnesota I'm very glad they did, it worked fairly will I only had heat exhaustion four or five times. So since I couldn't to much I decided to fix it so next year when it starts to get hot I'll have a guideline for next year, instead of relearning my lesson over again next year.

This is globe standard:                                                  My M.S
Category          Temperature           work / rest         work/rest
                1            78-81.9                     40  /  20              30/30 
(green)  2            82-84.9                    30  /  30              20/40
(yellow)3             85-87.9                    30  /  30              10/50
(red)     4             88-89.9                    20  /  40               5/55
(black) 5               > 90                         10  /  50               0/60

For each hour of work using this chart decrease work by 10 minutes and increase rest by 20 minutes, anything after 4 hours increase rest by one hour.


Kim @ Stuff could... said...

I feel for yall in MN and the heat. We do have a/c everywhere but lots of humidity like you saw in SC...True post

Mary K. Mennenga said...

Thanks Kim @ Stuff, This time of year for me is the hardest because of having had heat exhaustion.

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