OCR Text |
Show - - the high cirrus clouds, the Medium Med-ium high altocumulus and alto-stratus alto-stratus clouds - - the cumulus are distinctive and in a class by them-slves. them-slves. Cumulus clouds are the big, billowy bil-lowy clouds that form in a clear sky on a summer day. They are the clouds of vertical development which means they are formed by rising air currents. The winds that blow straight up cool as they rise; the cooling condenses invisible moisture and thus these thunder-heads thunder-heads are formed of clear, warm air. These clouds are almost an exception ex-ception to the rule that clouds don't make the weather, because their formation a self-regenerating atmospheric condition is started which may be dissipated only in a hard rainstorm or cloudburst. The localized atmospheric dis -turbance which accompanies the formation of cumulus clouds can be extremely severe. Airplanes that fly into these updrafts may be lifted three thousand feet a minute, and authorities say that vertical velocities of 200 mph mph may occur in some thunder heads. One report isJh.at Z . tUriX -&!T-- Dlane-rridi- straight rtnwn'at that :eed was nevertheless gaining alt ude in the updraft. There is und reason for the civil air reg-ation reg-ation which requires light planes i keep a distance of 500 ft. vertic ly and 2000 ft. horizontally from ouds. The turmoil within these clouds ' ay be discerned from the ground " r thev grow and change in shape Make Flight Over Valley Sunday Spencer H. Wright, merchant, mer-chant, R. S. Morrison, pilot Mer-ritt Mer-ritt Flovd inctn.Mn. -lile one watches. During a storm a thunderhead comes something more than a iss of condensing water vapor. ie forming of rain drops which 11 to earth builds up a heayv A.lrial oVi drop in the cloud, and - "-""'.iw in Lilt; xiign School, and Frank Beckwith, editor, edit-or, made an airplane trip over Pahvant Valley, the fluorspar mine in the Thomas Range, and the scenery displayed in Tule Valley,. The discharge of drainage water was carefully noted. The drains were all running freely and his-cnarging his-cnarging much water. The party flew overthe fluorspar mines of Spor Brothers, Ward Leasing Com- becomes a big electrical conden-c, conden-c, accumulating voltage until a vcharge of lightning equalizes ; .potential between the. cloud sd the earth, or another cloud. e Supercooled air or the updraft wi freeze rain into hail, and the C? of hailstones gives meteorolog gj a clue to the severity of the Olraft. I am the daughter of earth ur.nd water, trnd the nursling of the sky" trpte Shelley of the cloud. Little ioi he or Debussy conceive the ce maelstorm that is the heart Ea cumulus cloud! of pany, nesiey and Black, and Will den Brothers. Then down Tule Valley, taking pictures of Tatow Knobs (the big toes of the huge giant, whose head is the Hot Plug), past Marjum Pass. The enormous body of granite gran-ite at Painter Springs was noted and photographed. Then on to magnificent Notch Peak, which they passed over and then circled-over circled-over Amasa Valley, the site of a placer gold mine and sheelitP . erations. Then past the ancient crater near Smelter Knoll, formed a million years ago. In one field of view, passing onward on-ward four river beds of the Sevier River were in view at once from the plane, three old abandoned ones, and the fourth , the present channel. Then past the Great Stone Face and home. The party particularly noted the water impounded in the Gunnison Reservoir, and that at the Diversion Divers-ion Dam. The farmers this year : and into next will have ample wat er. |