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<br />,\ ".-.Il <br /> <br />o 0 l'j 3 0 <br /> <br />as of March I, 1984 . <br /> <br /> <br />WATER SUPPLY OUTLOOK FOR UTAH <br /> <br />NORTHERN UTAH: The <br />well above normal. <br />ranging from 125 to <br /> <br />water supply outlook for northern Utah continues to remain <br />Forecastsvaried only slightly from last month, generally <br />210 percent of normal. <br /> <br />February precipitation was very erratic over northern Utah with amounts ranging <br />from 16 percent at Laketown to 149 percent at Park Valley. The general trend <br />was below 100 percent from Ogden to the south and east and above 100 percent in <br />Box Elder and Cache Counties. <br /> <br />Seasonal precipitation generally remains well above normal over most of northern <br />Utah with portions of Davis, Weber and Cache counties reporting over 175 percent <br />of average. The upper Provo and Weber drainage basins are showing 100 to 125 <br />percent of average. <br /> <br />Observed streamflow throughout northern Utah continues to run well above normal. <br />However, the cold dry months of January and February have reduced flows from the <br />170 to 190 percent range to near 150 percent. <br /> <br />Reservoir storages throughout northern Utah are generally slightly less than last <br />month and in many cases considerably less than a year ago at this time. <br /> <br />Average basin snow measurements on March 1 were much above normal over northern <br />Utah: Bear Ri'ler drainage-134%; Logan-128%; Ogden-164%; Weber-138%; Jordan -136%; <br />Provo - 1240. <br /> <br />The ele'lation of the Great Salt Lake on March 1 was 4206.70 feet msl. This is <br />0.40 feet higher than the February 1, 1984 reading and 4.45 feet higher than a <br />year ago at this time. The Lake is expected to continue to rise to a level of <br />4208.00 to 4209.00 feet, three to four feet higher than the peak last year. <br />The March 1, Utah Lake level at the Lehi Pumping Plant gage was 3.20 feet above <br />compromise. This is down O.16 feet since Februar:' 1, 1984 hut is 1.17 feet higher <br />than a year ago at this time. Inflow to Utah Lake during February was 79,000 <br />acre-feet, 136 percent of normal while outflow was 90,000 acre-feet, more than <br />nine times normal. Utah Lake is expected to rise to 5.00 to 6.00 feet above <br />compromise this spring which will be the highest level on record. <br /> <br />. <br /> <br />Flood potential for this spring snowmelt continues to look threatening. April <br />through July forecasts indicate volumetric amounts only slightly less than those <br />received last year. Spring weather conditions will playa veFJ significant role <br />in how severe the flooding will be. If northern Utall has a cool, wet spring <br />similar to last, runoff conditions will be extremely critical. But if precipita- <br />cion is below normal and moderate temperatures prevail, the flood potential <br />could be dramatically reduced. <br /> <br />NOAA - NATIONAL '~~THER SERVICE <br />Colorado Basin River Forecast Center, Salt Lake City, Utah <br />Gerald Williams, Hydrologist-in-Charge <br />