3 =========== ---------- *AT* Chicago GLider, IL
Shear a major issue for us. This saved me from going out one atrocious day, but I missed what turned out to be a good day. I suspect that often soaring parameters for east coast flying are different than out in CA.
32 =========== ---------- *AT* Menomonie, WI
Very useful for prairie soaring
36 =========== Tony Gaechter *AT* Truckee, CA
40 =========== ---------- *AT* Boulder, CO
Need finer resolution.
46 =========== Gale Winnett *AT* Marion Municipal Airport, Marion, OH
Very influential with our flat terrain and nothing but thermals, situation.
51 =========== George Morford *AT* Mission Peak, Fremont, CA
53 =========== Terence Honikman *AT* Santa Barbara, CA
SOmetimes look here
56 =========== J Meier *AT* Mancos, CO
This has proven to be very useful in deciding whether or not to go XC. I use it as often as any prediction and it is extremely useful.
57 =========== ---------- *AT* Sterling, MA
Quite helpful in this part of the country where shredded thermals can ruin otherwise good looking days.
59 =========== Frank Peel *AT* Fremont, CA
This is one of the primary parameters I view to determine how good a day will be.
62 =========== Matt Gillis *AT* Hollister, CA; Truckee, CA
Very helpful quick indicator of whether it will be blown out OR I should be thinking wave.
71 =========== ---------- *AT* Manquin Flight Park, Manquin, VA
This appears to be some form of Richardson Number. It's an excellent threshold predictor of how well thermals will hold together on breezy days, however this quantity has less value in decision making b/c if the wind is high (surface wind > ~12 kts), then flightpark (HG) pilots usually choose no to fly, unless the wind aloft is less than ~15 kts. This is one of eight graphics I routinely use
72 =========== Colin J Barry *AT* Boulder, CO
This is the big daddy of the available parameters here in the mountains where we get strong westerlies most of the time.
77 =========== ---------- *AT* California City, CA
tends to predict worse than typical conditions on weak days at my site
88 =========== ---------- *AT* Crazy Creek, CA
I found this to be important after not believing it a few times - live and learn.
101 =========== Tom Hubbard *AT* Hollister, CA
Not used as much as top of BL
102 =========== ---------- *AT* HDH (HI), TRK (CA), MEV (NV)
Also taken into account when cosidering a soaring day.
117 =========== ---------- *AT* Caddo Mills, TX
Seems to be not too useful in our flatlands
135 =========== Harry Fox *AT* Hollister, CA ; Truckee, NV
The B/S of 5 rule of thumb for workable thermals seems to work pretty well.
142 =========== Bob Semans *AT* Minden-Tahoe Airport, NV
Use of shears in the Great Basin, particularly within 100 miles east of the Sierra, is very important for high cross country speeds and beating the theoretical maximum XC speeds of the Macready model.
167 =========== Walter Rogers *AT* California City, CA
When it's windy, thermals are broken up. Is that it ... basically?