This week's tip is from the new edition of Thermal Flying by Burkhard Martens

If you find yourself descending down into the valley wind long before the day is over you must check your options carefully.

Often more than one soarable place presents itself, and it is important to choose the right one.

Look for a ridge with a good connection to a mountain behind it, as these will be much easier to get away from.

It is not uncommon to find a small ridge where one can soar until sundown yet never climb out from. Finding yourself there early in the day is almost worse than landing prematurely.

The best possibilities then are found on ridges tall enough to rise above the valley wind, as a strong valley wind effectively disrupts any thermal development.