Supercell over Laramie
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Wyoming Snow Precipitation Update

United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of MONDAY: MAY 26 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 5.2 1.4 371 32.4 26.6 122 COTTONWOOD CREEK 7670 12.7 8.3 153 30.7 35.2 87 GRAND TARGHEE 9260 54.9 -M * 43.8 -M * GRANITE CREEK 6770 4.6 3.4 135 27.1 24.4 111 GRASSY LAKE 7265 26.3 19.0 138 52.2 44.3 118 GROS VENTRE SUMMIT 8750 4.6 6.0 77 18.2 17.2 106 GUNSIGHT PASS 9820 7.6 -M * 19.2 -M * LEWIS LAKE DIVIDE 7850 28.5 22.3 128 44.6 44.7 100 PHILLIPS BENCH 8200 23.3 17.8 131 41.4 36.0 115 SALT RIVER SUMMIT 7760 .2 .0 19.8 23.7 84 SNAKE RIVER STATION 6920 .4 .0 33.2 27.9 119 SPRING CREEK DIVIDE 9000 16.6 18.9 88 28.5 32.6 87 THUMB DIVIDE 7980 6.3 4.8 131 25.5 24.3 105 TOGWOTEE PASS 9580 29.1 24.4 119 37.4 32.1 117 TWO OCEAN PLATEAU 9240 43.0 27.7 155 40.3 35.6 113 WILLOW CREEK 8380 22.8 18.6 123 48.2 41.8 115 ----- ----- Basin wide percent of average 129 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 28.4 22.9 124 31.2 26.4 118 BLACK BEAR 8170 44.7 30.9 145 51.8 49.5 105 CANYON 7870 9.3 3.1 300 25.6 20.0 128 FISHER CREEK 9100 47.5 32.7 145 48.2 45.8 105 MADISON PLATEAU 7750 25.6 13.0 197 39.8 33.5 119 NORTHEAST ENTRANCE 7350 .2 .8 25 19.2 17.0 113 PARKER PEAK 9400 30.1 21.1 143 -M 22.5 * SYLVAN LAKE 8420 23.1 15.0 154 35.2 28.1 125 THUMB DIVIDE 7980 6.3 4.8 131 25.5 24.3 105 TWO OCEAN PLATEAU 9240 43.0 27.7 155 40.3 35.6 113 WHISKEY CREEK 6800 -M 3.9 * 30.9 26.7 116 WHITE MILL 8700 28.5 20.9 136 34.7 34.5 101 WOLVERINE 7650 .0 .4 0 20.1 17.8 113 ----- ----- Basin wide percent of average 148 112 WIND RIVER BURROUGHS CREEK 8750 11.3 6.0 188 23.9 22.0 109 COLD SPRINGS 9630 .9 1.2 75 15.9 16.5 96 DEER PARK 9700 14.2 12.7 112 27.5 30.3 91 HOBBS PARK 10100 15.2 12.8 119 21.9 20.3 108 LITTLE WARM 9370 1.6 3.5 46 19.4 19.5 99 SOUTH PASS 9040 8.8 8.8 100 24.0 25.5 94 ST. LAWRENCE ALT 8620 1.1 1.0 110 14.0 14.7 95 TOGWOTEE PASS 9580 29.1 24.4 119 37.4 32.1 117 TOWNSEND CREEK 8700 1.3 2.6 50 18.5 18.3 101 ----- ----- Basin wide percent of average 114 102 BIGHORN BASIN BALD MTN. 9380 19.6 19.5 101 23.8 24.7 96 BEAR TRAP MEADOW 8200 .9 .1 900 17.5 13.6 129 BLACKWATER 9780 30.7 27.3 112 32.9 28.1 117 BONE SPRINGS DIV 9350 17.0 11.8 144 26.6 21.6 123 EVENING STAR 9200 30.0 29.1 103 43.9 33.5 131 GRAVE SPRINGS 8550 8.9 2.8 318 17.8 15.6 114 KIRWIN 9550 10.0 7.8 128 21.0 16.9 124 MARQUETTE 8760 7.7 6.0 128 18.9 17.2 110 MIDDLE POWDER 7760 8.6 5.5 156 17.5 18.6 94 OWL CREEK 8975 2.0 1.0 200 11.9 10.6 112 POWDER RIVER PASS 9480 9.6 3.9 246 23.6 18.9 125 SHELL CREEK 9580 18.5 13.1 141 23.9 19.9 120 SYLVAN LAKE 8420 23.1 15.0 154 35.2 28.1 125 SYLVAN ROAD 7120 .0 .3 0 27.5 22.8 121 TIMBER CREEK 7950 3.0 1.1 273 16.5 13.7 120 YOUNTS PEAK 8350 13.7 10.3 133 23.2 21.5 108 ----- ----- Basin wide percent of average 132 117 SHOSHONE RIVER BLACKWATER 9780 30.7 27.3 112 32.9 28.1 117 EVENING STAR 9200 30.0 29.1 103 43.9 33.5 131 KIRWIN 9550 10.0 7.8 128 21.0 16.9 124 MARQUETTE 8760 7.7 6.0 128 18.9 17.2 110 SYLVAN LAKE 8420 23.1 15.0 154 35.2 28.1 125 SYLVAN ROAD 7120 .0 .3 0 27.5 22.8 121 YOUNTS PEAK 8350 13.7 10.3 133 23.2 21.5 108 ----- ----- Basin wide percent of average 120 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .1 900 17.5 13.6 129 BIG GOOSE 7990 7.7 5.8 133 21.5 15.9 135 BONE SPRINGS DIV 9350 17.0 11.8 144 26.6 21.6 123 BURGESS JUNCTION 7880 13.7 5.5 249 22.9 18.0 127 CLOUD PEAK RESERVOIR 9860 20.8 10.9 191 -M 20.9 * DOME LAKE 8880 11.3 5.3 213 25.2 20.0 126 GRAVE SPRINGS 8550 8.9 2.8 318 17.8 15.6 114 HANSEN SAWMILL 8360 4.2 .6 700 -M 13.5 * MIDDLE POWDER 7760 8.6 5.5 156 17.5 18.6 94 POWDER RIVER PASS 9480 9.6 3.9 246 23.6 18.9 125 SUCKER CREEK 8880 17.0 6.0 283 27.6 20.9 132 TIE CREEK 6870 .2 .0 21.1 16.6 127 ----- ----- Basin wide percent of average 206 123 BELLE FOURCHE BLIND PARK 6890 -M .0 * 17.9 17.2 104 COLE CANYON 5910 .0 .0 100 16.4 12.3 133 NORTH RAPID CREEK 6130 -M .0 * 19.0 13.6 140 ----- ----- Basin wide percent of average * 124 UPPER N. PLATTE RIVER COLUMBINE 9160 11.7 5.2 225 35.3 31.8 111 DIVIDE PEAK 8880 12.5 6.5 192 30.0 27.0 111 ELK RIVER 8700 6.6 2.7 244 29.4 25.5 115 JOE WRIGHT 10120 24.8 20.2 123 37.6 34.1 110 NORTH FRENCH CREEK 10130 29.1 28.1 104 38.3 33.6 114 OLD BATTLE 10000 36.2 29.9 121 49.1 43.6 113 SAGE CREEK BASIN 7850 .0 3.8 0 21.2 15.6 136 SOUTH BRUSH CREEK 8440 .2 3.0 7 22.8 23.1 99 TOWER 10500 46.2 47.1 98 51.7 49.3 105 WEBBER SPRINGS 9250 17.0 10.4 163 38.5 34.1 113 WILLOW CREEK PASS 9540 17.0 5.9 288 21.8 18.2 120 ----- ----- Basin wide percent of average 124 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.5 15.9 97 29.7 30.5 97 CASPER MTN. 7900 10.7 6.4 167 25.1 23.3 108 DEADMAN HILL 10220 19.6 14.1 139 27.1 24.1 112 DEER PARK 9700 14.2 12.7 112 27.5 30.3 91 LAPRELE CREEK 8375 .5 1.5 33 20.3 19.5 104 RENO HILL 8400 12.3 5.2 237 29.0 24.1 120 ROACH 9700 15.0 8.4 179 29.1 25.8 113 SAND LAKE 10050 33.2 30.3 110 39.7 33.5 119 SOUTH PASS 9040 8.8 8.8 100 24.0 25.5 94 WINDY PEAK 7900 .8 .4 200 18.1 16.4 110 ----- ----- Basin wide percent of average 126 107 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 21.3 20.6 103 DIVIDE PEAK 8880 12.5 6.5 192 30.0 27.0 111 OLD BATTLE 10000 36.2 29.9 121 49.1 43.6 113 SANDSTONE RS 8150 .1 .9 11 26.6 24.3 109 WHISKEY PARK 8950 38.8 18.8 206 44.2 37.2 119 ----- ----- Basin wide percent of average 156 112 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.6 4.3 60 17.9 18.1 99 BLIND BULL SUM 8650 24.1 20.8 116 22.3 27.6 81 EAST RIM DIVIDE 7930 .0 4.4 0 14.6 15.7 93 ELKHART PARK G.S. 9400 2.6 5.6 46 15.1 18.5 82 GROS VENTRE SUMMIT 8750 4.6 6.0 77 18.2 17.2 106 GUNSIGHT PASS 9820 7.6 -M * 19.2 -M * KENDALL R.S. 7740 .1 .0 17.3 18.2 95 LOOMIS PARK 8240 2.0 5.1 39 22.1 22.1 100 NEW FORK LAKE 8340 .0 .0 100 12.7 15.4 82 SNIDER BASIN 8060 .0 2.5 0 16.8 20.1 84 SPRING CREEK DIVIDE 9000 16.6 18.9 88 28.5 32.6 87 TRIPLE PEAK 8500 14.3 9.5 151 35.2 31.4 112 ----- ----- Basin wide percent of average 87 93 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 13.8 16.6 83 HEWINTA 9519 -M 1.4 * 21.6 19.9 109 HICKERSON PARK 9145 .0 .3 0 12.8 12.2 105 HOLE-IN-ROCK 9150 .0 .3 0 13.6 11.8 115 INDIAN CREEK 9425 -M 18.2 * -M 32.0 * KELLEY R.S. 8180 4.2 4.2 100 22.3 25.8 86 STEEL CREEK PARK 10200 18.2 14.5 126 24.2 22.7 107 ----- ----- Basin wide percent of average 116 99 UPPER BEAR RIVER BUG LAKE 7950 8.6 5.0 172 21.7 24.7 88 HAYDEN FORK 9212 .2 3.0 7 29.4 27.9 105 KELLEY R.S. 8180 4.2 4.2 100 22.3 25.8 86 LILY LAKE 9156 1.6 2.8 57 23.2 23.6 98 MONTE CRISTO 8960 18.2 16.4 111 31.8 33.5 95 SALT RIVER SUMMIT 7760 .2 .0 19.8 23.7 84 TRIAL LAKE 9992 13.9 18.0 77 30.0 32.7 92 ----- ----- Basin wide percent of average 95 93 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. Contact your state water supply staff for assistance. Reference period for average conditions is 1961-90. Provisional data, subject to revision. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.