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<br />26 <br /> <br />FLOOD, JULY 3I-AUGUST 1,1976, BIG THOMPSON RIVER. COLORADO <br /> <br />1150 <br /> <br />1100 <br /> <br />1050 <br /> <br />1000 <br /> <br />95" <br /> <br />35" <br /> <br /> <br />( <br /> <br />l. <br /> <br />, <br />" <br /> <br />i--/ <br />, <br /> <br />--- <br /> <br />___61}~- <br />P <br />56 <br /> <br />40" <br /> <br />Gd <br />~3C12 <br />J <br /> <br />35" <br /> <br /> 30.05 <br /> \ <br /> I <br />1100 1050 100" <br />0 100 200 300 400 MILES <br />I I I I I <br /> EXPLANATION <br /> <br />60657075 <br />~ <br /> <br />AREA WHERE DEWPOINT TEMPERATURE EXCEEDED <br />60 DEGREES FAHRENHEIT <br />LINE OF EQUAL DEWPOINT TEMPERATURE. --loteNal <br />5 degrees Fahrenheit <br /> <br />L <br /> <br />GEOGRAPHIC CENTER OF LOW-PRESSURE SYSTEM <br /> <br />-70- <br /> <br />82(,30.11 <br />56,\ <br />) <br /> <br />OBSERVATION STATION. -Upper left number is air <br />temperature, in degrees Fahrenheit. Lower left <br />number is dewpoint temperature, in degrees <br />Fahrenheit. Number at right is altimeter setting, in <br />inches of mercury. Shaft indicates wind direction. <br />Barbs on shaft indicate wind speed, in knots. Long <br />barb=10 knots, short barb=5 knots.,Z,'=calm winds, <br />less than 2 knots. Additional symbols and notes <br />explained below: <br /> <br />'\ =Thunder heard, but no precipitation at station <br /> <br />~ =Slight rain shower(s) <br /> <br />" =lighting observed <br /> <br />G2:2=Peak wind gust observed during last hour <br /> <br />-30.15- <br /> <br />. <br /> <br />- <br /> <br />LINE OF EQUAL ALTIMETER SmING, IN INCHES OF <br />MERCURY.--1nterval 0.05 inch <br />COLD FRONT. -Dashed where dissipating <br />STATIONARY FRONT <br />SQUALL LINE <br /> <br />GEOGRAPHIC CENTER OF HIGH-PRESSURE SYSTEM <br /> <br />. <br /> <br />. <br /> <br />H <br /> <br />FIGURE 21.-Regional surface analysis, 1600 MDT, July 31, 1976. <br />