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<br /> <br />450" <br />, <br /> <br />350 <br /> <br />D. <br /> <br />1000 <br /> <br />.G'MT,l :AuguSfi9i&"'~~~A!~'.;ege~d'ol"'Ffg~!7;io;'d~tii~s~f <br />'''.' "G' ~'.f11.. ". ~Ifci '''. "-@t'~.. &l\!iI.i'.'~ c; <br />.. ,,,. > . A . ,... !!I" ,aATO"'. " <br />~1I ' .~'",U;;o:a;._; <br /> <br />large area of unstable conditions tbat <br />stretched from New Mexico to .Montana. <br />Thunderstorms were occurring throughout <br />this region and Totals of 50 to 52, along with <br />L.I. values of -2 to -4, indicated the po- <br />tential for moderate to heavy storm activity. <br />The 0000 GMT Denver sounding <br />(Fig. 27) showed that the air mass structure <br />had modified significantly during the day. <br />The temperature inversion had lifted 80 mh <br />to the 590 mh level. Strong diurnal heating <br />was prohahly responsible for this lifting <br />since a dry adiabatic lapse rate existed <br /> <br />below the inversion, The low cloud layer <br />had dissipated during the morning, and the <br />mean vapor mixing ratio in the lowest 100 <br />mh laver had decreased from 12.0 to 9.5 g <br />kg-I "Easterly flow had increased slightly <br />and the LFC had lowered to 620 mb. The <br />L.1. was - 2 and thunderstorm activity was <br />developing in the vicinity. Precipitahle <br />water for the sUlface-to-500 mb layer was <br />2.47 cm, little different from the 2.54 cm <br />value at 1200 GMT. Strong afternoon heat- <br />ing and mixing had redistrihuted the mois- <br />ture through a deeper layer. The Denver <br /> <br />28 <br /> <br />~. <br /> <br />~ <br /> <br />s;' <br /> <br />Ii! <br />~- <br />