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 THURSDAY: MAY 29 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.4 .0 32.7 26.8 122 COTTONWOOD CREEK 7670 11.3 6.7 169 31.4 35.5 88 GRAND TARGHEE 9260 55.9 -M * 44.1 -M * GRANITE CREEK 6770 3.4 2.1 162 28.1 24.7 114 GRASSY LAKE 7265 24.3 16.6 146 52.7 44.7 118 GROS VENTRE SUMMIT 8750 4.5 4.9 92 18.6 17.4 107 GUNSIGHT PASS 9820 7.5 -M * 19.4 -M * LEWIS LAKE DIVIDE 7850 26.8 20.2 133 44.7 45.1 99 PHILLIPS BENCH 8200 23.5 15.9 148 41.9 36.3 115 SALT RIVER SUMMIT 7760 .0 .0 100 20.4 23.9 85 SNAKE RIVER STATION 6920 .0 .0 100 33.2 28.1 118 SPRING CREEK DIVIDE 9000 16.7 17.0 98 29.7 32.9 90 THUMB DIVIDE 7980 4.0 3.4 118 25.5 24.6 104 TOGWOTEE PASS 9580 29.4 23.3 126 37.9 32.4 117 TWO OCEAN PLATEAU 9240 43.2 26.5 163 40.6 36.0 113 WILLOW CREEK 8380 22.2 16.5 135 49.2 42.2 117 ----- ----- Basin wide percent of average 137 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 28.3 21.6 131 31.6 26.7 118 BLACK BEAR 8170 44.1 28.4 155 51.9 49.9 104 CANYON 7870 7.8 2.3 339 25.8 20.2 128 FISHER CREEK 9100 -M 31.3 * 48.4 46.3 105 MADISON PLATEAU 7750 24.5 10.9 225 39.9 33.9 118 NORTHEAST ENTRANCE 7350 .0 .6 0 19.3 17.3 112 PARKER PEAK 9400 30.2 19.9 152 -M 22.9 * SYLVAN LAKE 8420 20.9 13.3 157 35.4 28.6 124 THUMB DIVIDE 7980 4.0 3.4 118 25.5 24.6 104 TWO OCEAN PLATEAU 9240 43.2 26.5 163 40.6 36.0 113 WHISKEY CREEK 6800 11.2 2.2 509 31.1 27.0 115 WHITE MILL 8700 28.0 19.4 144 35.1 34.8 101 WOLVERINE 7650 .0 .1 0 20.3 18.0 113 ----- ----- Basin wide percent of average 163 111 WIND RIVER BURROUGHS CREEK 8750 11.6 4.6 252 24.8 22.3 111 COLD SPRINGS 9630 1.6 1.1 145 17.0 16.8 101 DEER PARK 9700 14.8 10.1 147 28.4 30.6 93 HOBBS PARK 10100 16.3 11.3 144 23.3 20.7 113 LITTLE WARM 9370 1.5 2.7 56 20.0 19.8 101 SOUTH PASS 9040 9.1 7.9 115 25.1 25.8 97 ST. LAWRENCE ALT 8620 1.7 .7 243 15.3 14.9 103 TOGWOTEE PASS 9580 29.4 23.3 126 37.9 32.4 117 TOWNSEND CREEK 8700 2.1 2.2 95 19.9 18.6 107 ----- ----- Basin wide percent of average 138 105 BIGHORN BASIN BALD MTN. 9380 20.2 18.0 112 24.6 25.0 98 BEAR TRAP MEADOW 8200 .0 .0 100 18.4 13.9 132 BLACKWATER 9780 31.6 26.1 121 33.7 28.5 118 BONE SPRINGS DIV 9350 16.4 10.2 161 26.9 22.0 122 EVENING STAR 9200 30.5 28.0 109 44.5 34.0 131 GRAVE SPRINGS 8550 8.7 2.4 362 18.5 15.9 116 KIRWIN 9550 10.4 6.6 158 21.7 17.2 126 MARQUETTE 8760 8.8 5.1 173 20.1 17.6 114 MIDDLE POWDER 7760 6.8 4.0 170 17.5 18.8 93 OWL CREEK 8975 2.6 .7 371 12.9 10.8 119 POWDER RIVER PASS 9480 9.2 3.1 297 24.1 19.3 125 SHELL CREEK 9580 18.6 12.0 155 24.5 20.2 121 SYLVAN LAKE 8420 20.9 13.3 157 35.4 28.6 124 SYLVAN ROAD 7120 .0 .2 0 27.7 23.0 120 TIMBER CREEK 7950 4.0 .8 500 18.0 14.1 128 YOUNTS PEAK 8350 13.2 8.8 150 23.8 21.8 109 ----- ----- Basin wide percent of average 145 119 SHOSHONE RIVER BLACKWATER 9780 31.6 26.1 121 33.7 28.5 118 EVENING STAR 9200 30.5 28.0 109 44.5 34.0 131 KIRWIN 9550 10.4 6.6 158 21.7 17.2 126 MARQUETTE 8760 8.8 5.1 173 20.1 17.6 114 SYLVAN LAKE 8420 20.9 13.3 157 35.4 28.6 124 SYLVAN ROAD 7120 .0 .2 0 27.7 23.0 120 YOUNTS PEAK 8350 13.2 8.8 150 23.8 21.8 109 ----- ----- Basin wide percent of average 131 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 18.4 13.9 132 BIG GOOSE 7990 7.0 4.4 159 21.9 16.2 135 BONE SPRINGS DIV 9350 16.4 10.2 161 26.9 22.0 122 BURGESS JUNCTION 7880 13.0 4.1 317 23.4 18.3 128 CLOUD PEAK RESERVOIR 9860 20.9 9.3 225 29.5 21.3 138 DOME LAKE 8880 11.3 4.2 269 26.0 20.3 128 GRAVE SPRINGS 8550 8.7 2.4 362 18.5 15.9 116 HANSEN SAWMILL 8360 4.2 .4 1050 21.7 13.8 157 MIDDLE POWDER 7760 6.8 4.0 170 17.5 18.8 93 POWDER RIVER PASS 9480 9.2 3.1 297 24.1 19.3 125 SUCKER CREEK 8880 16.6 4.8 346 28.0 21.2 132 TIE CREEK 6870 -M .0 * 22.1 16.9 131 ----- ----- Basin wide percent of average 243 128 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 18.5 17.5 106 COLE CANYON 5910 .0 .0 100 17.8 12.6 141 NORTH RAPID CREEK 6130 -M .0 * 19.7 13.8 143 ----- ----- Basin wide percent of average * 128 UPPER N. PLATTE RIVER COLUMBINE 9160 8.3 3.4 244 35.5 32.0 111 DIVIDE PEAK 8880 8.4 5.0 168 30.1 27.2 111 ELK RIVER 8700 1.7 1.9 89 29.6 25.8 115 JOE WRIGHT 10120 23.7 18.7 127 38.0 34.5 110 NORTH FRENCH CREEK 10130 27.7 26.1 106 38.9 34.0 114 OLD BATTLE 10000 34.1 27.8 123 49.2 43.9 112 SAGE CREEK BASIN 7850 .0 2.9 0 21.3 15.8 135 SOUTH BRUSH CREEK 8440 .1 2.3 4 23.4 23.4 100 TOWER 10500 42.8 45.0 95 51.8 49.6 104 WEBBER SPRINGS 9250 14.6 8.4 174 38.5 34.4 112 WILLOW CREEK PASS 9540 14.6 4.4 332 21.9 18.5 118 ----- ----- Basin wide percent of average 121 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.6 13.7 107 30.4 30.8 99 CASPER MTN. 7900 9.1 5.2 175 25.6 23.7 108 DEADMAN HILL 10220 18.3 12.7 144 27.5 24.4 113 DEER PARK 9700 14.8 10.1 147 28.4 30.6 93 LAPRELE CREEK 8375 -M 1.1 * 20.6 19.8 104 RENO HILL 8400 10.5 4.3 244 29.9 24.4 123 ROACH 9700 13.2 7.2 183 29.6 26.1 113 SAND LAKE 10050 32.6 28.1 116 40.2 33.9 119 SOUTH PASS 9040 9.1 7.9 115 25.1 25.8 97 WINDY PEAK 7900 .8 .2 400 18.4 16.8 110 ----- ----- Basin wide percent of average 138 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 21.4 20.8 103 DIVIDE PEAK 8880 8.4 5.0 168 30.1 27.2 111 OLD BATTLE 10000 34.1 27.8 123 49.2 43.9 112 SANDSTONE RS 8150 .2 .5 40 26.8 24.6 109 WHISKEY PARK 8950 31.3 16.2 193 44.2 37.5 118 ----- ----- Basin wide percent of average 149 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.1 2.9 72 18.6 18.4 101 BLIND BULL SUM 8650 24.3 19.4 125 23.4 27.9 84 EAST RIM DIVIDE 7930 .0 3.0 0 15.0 15.9 94 ELKHART PARK G.S. 9400 2.8 4.5 62 15.9 18.8 85 GROS VENTRE SUMMIT 8750 4.5 4.9 92 18.6 17.4 107 GUNSIGHT PASS 9820 7.5 -M * 19.4 -M * KENDALL R.S. 7740 .1 .0 17.6 18.4 96 LOOMIS PARK 8240 1.4 3.7 38 22.8 22.3 102 NEW FORK LAKE 8340 .0 .0 100 13.3 15.7 85 SNIDER BASIN 8060 .0 1.0 0 18.2 20.3 90 SPRING CREEK DIVIDE 9000 16.7 17.0 98 29.7 32.9 90 TRIPLE PEAK 8500 14.7 7.2 204 36.5 31.7 115 ----- ----- Basin wide percent of average 105 96 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 14.7 16.8 87 HEWINTA 9519 -M 1.0 * 21.7 20.1 108 HICKERSON PARK 9145 .0 .1 0 12.8 12.4 103 HOLE-IN-ROCK 9150 .0 .1 0 13.7 12.0 114 INDIAN CREEK 9425 18.9 16.5 115 -M 32.2 * KELLEY R.S. 8180 3.5 2.8 125 23.1 26.0 89 STEEL CREEK PARK 10200 17.6 13.2 133 24.4 22.9 107 ----- ----- Basin wide percent of average 122 100 UPPER BEAR RIVER BUG LAKE 7950 6.8 3.7 184 22.0 24.9 88 HAYDEN FORK 9212 .2 2.1 10 29.8 28.2 106 KELLEY R.S. 8180 3.5 2.8 125 23.1 26.0 89 LILY LAKE 9156 .7 2.1 33 23.9 23.9 100 MONTE CRISTO 8960 17.0 14.5 117 32.0 33.8 95 SALT RIVER SUMMIT 7760 .0 .0 100 20.4 23.9 85 TRIAL LAKE 9992 13.7 16.3 84 30.8 33.0 93 ----- ----- Basin wide percent of average 101 94 ----------------------------------------------------------------------------- -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.