vagaries of weather

Amazingly enough, we have had nearly a week of absolutely beautiful weather.  Why then are all the vegetables now starting to develop problems.  While we were being deluged, everything looked good.  Of course as an old gardening hand, I know the root systems of the crops migrated as close to the surface as possible during the storms..  Now, as the top few inches of the soil dry out, the roots can't migrate down fast enough to maintain the health of the plants.  It still seems unfair that the problems show up when the weather straightens out.  With a little luck, the plants will send new roots down to the plentiful moisture below and in the next couple of weeks the crops will reflect the newly clement weather.