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<br />
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<br />'_:0
<br />i&f! !~}
<br />
<br />
<br />~.~
<br />
<br />1250 120" 1150 1100 1050 1000
<br />I
<br />o..~~ /~
<br />48----------
<br />
<br />",.
<br />
<br />
<br />
<br />130"
<br />
<br />0<'
<br />
<br />N
<br />
<br />1150
<br />
<br />95"
<br />
<br />
<br />50'
<br />
<br />90'
<br />
<br />85'
<br />
<br />~
<br />"
<br />
<br />1050
<br />
<br />100'
<br />
<br />95"
<br />
<br />90"
<br />
<br />-y-';.,'" b,l,"Jil'--:"Ji..,'7,y 8.,*,f.'~~!fJ ".',1~!IW;,?,"" * Itt~ft , ,:U<~\~ '''\.''' '~ ~51r 'f
<br />,'.'': 'y, '{It'( '<ti,'L"1;,\f/'- /,4, "'-:-' '::0;;1:: '''W''f!' l'l'';tj ~ir\\i, r'~;~t;;-_ :_w. ,b,' /
<br />Figure 26.' Stability chart for'OOOO' .1976. Refer to legend of~Fig. 9 for details.
<br />NY ~,vt:~'0:'~;,? ~4!i'0f "k!l :ti ~k ,",', . '.'{jfJ:' :::*'\S:" , ~
<br />f(,;f' A 'L" ,IN- ~i ' J"'" 'W~fIrr
<br />14" 'i",'!ij.f#:fi.' .5 m ,_ ~ ":i:, iJ~' v~'i0; ':'
<br />j%.f0P0J,-,P:v.- 1:;' tAt Jf~"'\ ~:,' ii
<br />:":: c, ':.c, a ;>:i. *",,:;\s,,\\jj
<br />'tIT f.~ ~~' 'f;,~ ,:.''{t'Z, '~i
<br />"'- "" I"""
<br />;t't', ~~->"Mt-- ;,.~~ ~ ~
<br />
<br />
<br />1-
<br />
<br />
<br />0000 GNIT were similar and indicated that
<br />the air mass hetween the leading and trail-
<br />ing fronts had heen modified hy heating
<br />and mixing ofhoundary layer air; thus, lit-
<br />tle contrast remained across the leading
<br />front. The narrow hand of very moist, con-
<br />ditionally unstahle air, which played a vital
<br />role in the development of the Big
<br />Thompson storm, was not sampled hy the
<br />synoptic rawinsonde network Denver was
<br />located just south and west of the important
<br />
<br />air mass at 0000 GMT, and North Platte
<br />\Vas located just east of the deep moist layer
<br />at 1200 GMT. However. slnface reports
<br />from snch locations as Imperial and
<br />McCook, Nehraska; Goodland, Kansas;
<br />and Akron, Limon, and Ft. Collins. Col,
<br />orado, indicated the presence and helped
<br />delineate the extent of the moist tongue of
<br />
<br /><Uf.
<br />
<br />All availahle data suggest that the air
<br />mass that fed the Big Thompson storm was
<br />
<br />31
<br />
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