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<br /> <br /> <br />METEOROLOGY, HYDROLOGY, BIG THOMPSON RIVER AND CACHE LA POUDRE RIVER BASINS 33 <br /> <br /> <br />50" <br /> <br /> <br />45" <br /> <br />40" <br /> <br />35" <br /> <br />30" <br /> <br />25" <br /> <br />25" <br /> <br />1150 <br /> <br />1100 <br /> <br />1050 <br /> <br />1000 <br /> <br />goo <br /> <br />90" <br /> <br />o <br />I <br /> <br />500 MILES <br />I <br /> <br />6065707580 <br />~ <br /> <br />EXPLANATION <br /> <br />AREA WHERE DEWPQINT TEMPERATURE EXCEEDEO 60 <br />DEGREES FAHRENHEIT <br /> <br />LINE OF EQUAL DEWPDINT TEMPEAATURE. -Interval 5 <br />degrees Fahrenheit <br /> <br />LINE OF EQUAL AIR TEMPERATURE. -Interval 5 degrees <br />Fahrenheit <br /> <br />LINE OF EQUAL ATMOSPHERIC PRESSURE AT SEA <br />LEVEL.~12=1012 millibars. Interval 2 millibars; <br />l-millibarinterval shown by dashed line <br /> <br />COLD FRDNT.---Dashed where dissipating <br />STATIONARY FRONT. -Dashed where dissipa.ing <br />SQUAll LINE <br />GEOGRAPHIC CENTER OF HIGH-PAESSURE SYSTEM <br /> <br />. <br /> <br />. <br /> <br />- <br /> <br />-70- <br />--65-- <br />-12- <br /> <br />H <br />L <br /> <br />GEOGRAPHIC CENTER OF LOW.PRESSURE SYSTEM <br /> <br />FIGURE 28.-Surface analysis. 1800 MDT, July 31, 1976. <br />