Is it flyable at your chosen sites?
For each day/site a color gradient shows hourly conditions according to the below algorithim.
The day/site is daylight hours only.
For the current day/site only remaining daylight condition color is shown.
Your skill or experiance may not match the parameters, use your own best judgement.
Click table cell to jump to forecast day detail.
Speed < 5 = yellow
5 ≦ Speed ≦ 12 = green
12 ≦ Speed ≦ 14 = yellow
Speed > 14 = red
Gust < 4 = green
4 ≦ Gust ≦ 5 = yellow
Gust > 5 = red
Temp < 50 = yellow
50 ≦ Temp ≦ 90 = green
90 ≦ Temp ≦ 105 = yellow
Temp > 105 = red
Probability of Precipation (POP)
POP < 30 = green
30 ≦ POP ≦ 60 = yellow
POP > 60 = red
Switching wind (more than 10 degrees). Values: red
Wind within defined (left/right) of straight in launch direction. Values: red
Winds Aloft (WA) see thermal index
Wind Aloft and Thermal Index?
The Thermal Index (TI) is a frequently used indicator of thermal strength.
Maximum forecast temperature is lifted dry-adiabatically.
As it intersects sounding temperature line, it indicates stability level-attitude.
Thus, TI can be measured for any altitude by subtracting the temperature of the lifted air parcel from the sounding temperature.
The more negative the number, the stronger the thermals will be.
For arrows and lines see picture above.
greater than -3 barely to not soaring conditions.
-3 to -5 minimal soaring.
-5 to -9 produces best soaring conditions.
greater than -9 leads to over development and thunderstorm.