<div class="eI2">Soaring Index</div> The Soaring Index map - updated every 6 hours - shows the modelled lift rate by thermals (convective clouds). The index is based on weather information between 5 000 feet (1 524 metres) and 20 000 feet (6 096 metres) and is expressed in Kelvin. <BR> Table 1: Characteristic values for Soaring Index for soaring<BR> <TABLE border=1> <TBODY> <TR> <TD align=middle><B>Soaring Index</B></TD> <TD align=middle><B>Soaring Conditions</B></TD> </TR> <TR> <TD align=middle>Below -10<BR> <BR>-10 to 5<BR> <BR>5 to 20<BR> <BR>Above 20</TD> <TD align=middle>Poor<BR> <BR>Moderate<BR> <BR>Good<BR> <BR>Excellent<SUP>*</SUP></TD> </TR> </TBODY> </TABLE> <BR> Table 2: Critical values for the Soaring Index<BR> <TABLE border=1> <TR> <TD><STRONG>Soaring Index</STRONG></TD> <TD><STRONG>Convective potential</STRONG></TD> </TR> <TR> <TD>15-20</TD> <TD>Isolated showers, 20% risk for thunderstorms</TD> </TR> <TR> <TD>20-25</TD> <TD>Occasionally showers, 20-40% risk for thunderstorms</TD> </TR> <TR> <TD>25-30</TD> <TD>Frequent showers, 40-60% risk for thunderstorms.</TD> </TR> <TR> <TD>30-35</TD> <TD>60-80% risk for thunderstorms.</TD> </TR> <TR> <TD>35 + </TD> <TD>>80% risk for thunderstorms </TD> <TR> </TABLE> </div>