The Tempature Baller Index

[Horton]

I have a lot of real work to do today so instead of doing it I am working on this random silliness.

 

Below is a chart for the "Baller Index".

Here is how it works.

If the perfect day is 80 degree F water & 80 degree F air (a total of 160) then the Baller Index = 100

We all know that 50 degree F air and 50 degree F water (a total of 100) is the limit of insanity so it has a Baller Index of 0

 

I included C for the rest of the planet. I think It is correct.

If we can all use B we no longer have to be confused by C and F

[Bill22]

Ok..I am around a B = 40 to 50.

[MISkier]

I prefer B about 120 or so.

 

I want water a bit over 82 (optimal muscle temp) and air 90 or better.

[Andy]

@horton get back to work. I may need a vacation at your lake sooner than later.

[Horton]

The BI here is about -25 and I would not be at all surprised to if someone skied.

[Horton]

@OB 180 F or 180 BI?

[Horton]

Is someone smart wants to create a formula for conversion - feel free. Creating the table was easy but don't ask me to calc on the fly.

[Horton]

@ob I never said it was a "good" idea

[E_T]

@Horton your chart is well a horton chart...

[aussiemc]

@Horton You may have to do a slight adjustment to your table.

80 degF = 26.7 degC so 100 B should be 53.4 degC The problem is with F to C conversion, it's not a set formula. If we (Down Under) had 80F / 27C water, we would then have a air temp of freak'n hot 111F / 44C to reach 100B.

Good luck trying to figure the entire table though :).

[BRY]

@Horton If 160 (80+80) is ideal then shouldn't that be 0? So the larger then absolute number the larger the "crazy" factor? I would submit that your 210 (105+105) is crazier than your 0 (50+50).

Having skied about 188 a bit this year I had issues with equipment being soft, water just freaky, and cooling down after the set.

Having done a lot of 0 and -16ish over the years, a good drysuit, F&R hardshells (put hot water in the liners, good for a set), enclosed bimini, 4 outlet heaters w/3 snorkles, hot tub its actually pretty good. Skis don't ski the same though. Beer & Rum afterword not too bad either.

[BRY]

I would also say something about the ladies and bikini's and cold weather and hot tubs and alcohol but it's supposed to be a family friendly site.

[Wish]

I put my big toe in. If its cold, I'll decide what level of neoprene will be worn. WAY easier then doing math...

[PJ]

If there is snow on the dock, @otf is up first

[RazorRoss3]

@Horton, writing an equation for that would be interesting because for Baller values less than 100 B increases by 16.66666... for every 10 degree increase in F and for Baller values greater than 100 B increases by 12.5 for every 10 degree increase in F. Also I believe that all of us Northern Midwest skiers qualify as insane if since plenty of us have skied 40 degree air and 33 degree water.

[Horton]

@RazorRoss3 Aaaahhhh crap.

 

Yes that is an error. Should be 16.666666 increase per 10 F above 100 BI not 12.5.

 

12.5 was the increment in the first version that had 180F = 100 BI

 

I will fix that later.

[Horton]

@RazorRoss3 maybe it should not be linear. From 160F to 180F is the sweetspot to me.

[Horton]

corrected

[Horton]

@aussiemc I checked the F to C and not see my error. Are you sure?

[mwetskier]

according to ur latest chart my friends in alaska skied there last week of the season at a baller temperature index value of about -35. pretty sure i would wimp out at a little under a bti of 0.

[Horton]

@mwetskier Air Temp + Plus Water Temp less that 80F? Holy Crap! Why?

[Monkstr6100]

Skied yesterday at a charity event in Lake Geneva WI. Air temp 13 and water at 38! And of course they had ALL HUGE wake boats so the first time I went to go through the wakes I OTF HARD! Awesome.

[mwetskier]

@horton -i think those guys at broho ski in similar conditions. if the water is still liquid and your dressed for cold air then why not? altho some of the stories they tell about coping with the cold would curl your hair like breaking out thin layers of ice in the course and keeping an ice chest of hot water in the boat to warm hands between passes and stuff like that

[Waternut]

So is this supposed to be an index for what we prefer or the lowest we're willing to ski? A poll for this would be interesting.

[fu_man]

@Monkstr6100 There is a slalom course on Lake Geneva? Or was this just free skiing? Back in the 60's my dad and his friends used to drive up to Lake Geneva rent a boat at Gordy's and ski (with floatation belts...haha).

[Monkstr6100]

@fu_man no I don't think there is a course ever set up out there. Really there are NO public courses in this area. It was a water sports based charity event. www.freeze4life.com. Very cool.

 

[Monkstr6100]

Yes, that's ice on my face and hands. And my hair froze like a rock!

[RazorRoss3]

@Horton, with the corrected chart I believe it should be B = (5/3)*(F-100). That creates a ratio of 16.66666 B for every 10 F and matches the chart as far as I can tell. For an equation using Celsius I believe you would just have to apply whatever the Fahrenheit to Celsius equation is to the F value and the 100 and that should give you a C to B equation.

 

Also, I'm pretty sure I've seen B's below -30 a few times.

[aussiemc]

@Horton Your conversion of 160F to 71.1C is correct. The problem is 80F (individually water or air)= 26.7C x 2 (each water and air) = 53.4C

This is why it wont be an easy conversion table to convert imperial to metric.

Metric is easy 0 degC = Frozen water, 100 degC = Boiling water.

Someone with a lot more time and desire than me, may be able to work it out.

[mwetskier]

converting celcius to farenheit is pretty straight forward just multiply the c* x 1.8 and add 32 -at least thats how i learned it in grade school.

[DefectiveDave]

I got down to 120F several times this year, once with a drysuit, several times with a wetsuit, and once bare. The wetsuit definitely takes the bite out of the chill after a run through the course and was a great improvement, but the thought of initially hitting the water still saps a lot of the fun for me. If only drysuits were easier to wear! The one time I wore it I was nice and toasty. However, I almost went bald and nearly twisted an ankle getting the thing on and then I nearly choked to death as I skied. Wish I lived in Florida.

[Moggie]

For what it's worth:

 

Fahrenheit

B=((Air+Water)-100)x1.667)

 

Celsius

B=((Air+Water)-37.8)x3)

[E_T]

If excell is used. It will do a F to C conversion on it's own

[ral]

I really think cold weather after a ski season has a very negative impact in the brain cells...

[ral]

by the way, @aussiemc is correct, 71 total for celsius would be really crappy conditions for hands and soul...

[Skoot1123]

BI = 50 for me

[gsm_peter]

We stopped skiing in mid October.

Water 7 c. Air 7 c. That would be type BI -50.

We seldom gets Bl above 30 and then most folks ski in only shorts.

I have never skied above BI 50.

[Skoot1123]

@gsm_peter - now THAT is dedication my friend!!

[Chef23]

For me I hang it up with a BI of around 33. In the fall I like to not dip much below 60* air and 55* water. In the spring I am a little more excited to ski and if it isn't windy I will get closer to the 50* 50* mark if there is no good weather in the immediate future.

[The_MS]

BI=0 in the spring, 70 in fall

[04196]

Water don't really care as long as it's liquid and air, our minimum is 36 so may be around a 76 total. What's that equate to?? Besides insanity?

[RazorRoss3]

The problem with BI is that it is a multi variable equation where in Fahrenheit it is (air temp + water temp - 100) * (5/3). Because of the two variables there are multiple values of air and water temp that produce the same BI. I think that while a skier with air 70 water 40 and a skier with air and water 55 would have different opinions on how the weather was even though they both had the same BI. I don't want to scare anyone but I don't think we're using highschool algebra anymore.

[Horton]

meh. I never said it was a genius idea. 70 air and 70 water and 70 wind also sucks

 

 

[RazorRoss3]

Very true, wind chill/is this talk of chop worth it does play into it. Good idea but it might be easier just to say what the conditions are than do the multi variable Calc required to solve for BI

[MattP]

Uncle

[Ham_Wallace]

50 air + 50 water = 100 or Baller Index of Zero. Anything less and rubber is permissible!

[skihard]

It's 52F here today and I don't know what the water temp is..........I just want to go for a set!

[ampacdan]

Had a great ski this morning +5c water and air - drysuit/hat/ neoprene socks - cozy warm. Last weekend -5c was a bit frosty on the hands and feet.

[Zman]

When snow skiing in BC Canada temps of course are in Celcius. An easy in the head conversion goes like this....using 25C as an example...

25 x 2 equals 50. Reduce the absolute value of +50 by 10 percent. That is easily 45. Add 32 and you have 77 F.

Easy to do in your head vs C x 9/5 + 32 = F.

And I don't worry about fractions, I just wanna know how many layers to wear when the mountain report says minus 10 C (14 F).

For minus C temps you have to be to reduce the absolute value of the first step.

-10 C x 2 = -20. Reduce the abs value of -20 by 10% is easily -18. Add 32 and you have + 14 F.

Can do the conversions all day easily in your head until the beers start flowing.

 

Another post used 1.8 in the conversion instead of 9/5th, but I cannot multiply 25 by 1.8 in my head but I can do 25 dbls to 50 becomes 45, add 32 is 77F in a Nano XT second.

[madcityskier]

Did air 30 and water 32 before. Had to really watch as calm water and thin ice can be hard to differentiate.