<H1>Physical DriftWeather</H1>
   <P><UL>
   <LI><H2> wind speed/direction
   </H2>
   </UL><UL>
   <H2>    * most important
   </H2>
   </UL><UL>
   <LI><H2> temperature
   </H2>
   </UL><UL>
   <LI><H2> humidity
   </H2>
   </UL><UL>
   <LI><H2> inversions</H2>
   </UL></P>
   <P></P>
   <P>