To many, the phrase "English weather" conjures images of fog, clouds, and rain. To Bob Stanley and Pete Wiggs, English weather means something "melodic, melancholy, with jazz and folk touches, and the same similar shrug of resignation..." So explains the compilers of the recent English Weather, an absorbing 18-track compendium from Ace Records collecting rare and unusual songs that might be, in their words, akin to "an unfamiliar album with a hint of Crosby, Stills and Nash, but an identifiably