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: NOVEMBER 22 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.7 2.9 128 6.4 4.7 136 COTTONWOOD CREEK 7670 7.0 3.3 212 10.6 6.4 166 GRAND TARGHEE 9260 11.9 -M * 9.8 -M * GRANITE CREEK 6770 2.9 2.3 126 5.5 4.1 134 GRASSY LAKE 7265 5.9 5.5 107 9.1 7.5 121 GROS VENTRE SUMMIT 8750 3.5 3.0 117 3.7 3.5 106 GUNSIGHT PASS 9820 3.9 -M * 4.5 -M * LEWIS LAKE DIVIDE 7850 6.8 5.5 124 8.8 7.6 116 PHILLIPS BENCH 8200 7.3 4.7 155 8.6 5.7 151 SALT RIVER SUMMIT 7760 2.3 1.8 128 5.5 4.0 138 SNAKE RIVER STATION 6920 2.9 2.8 104 6.7 5.0 134 SPRING CREEK DIVIDE 9000 6.6 5.0 132 8.0 5.8 138 THUMB DIVIDE 7980 4.0 2.9 138 5.2 4.3 121 TOGWOTEE PASS 9580 7.4 5.6 132 8.3 5.9 141 TWO OCEAN PLATEAU 9240 8.3 6.7 124 6.8 6.5 105 WILLOW CREEK 8380 6.5 5.7 114 11.2 7.5 149 ----- ----- Basin wide percent of average 130 133 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 5.7 5.5 104 5.8 4.6 126 BLACK BEAR 8170 8.1 7.2 113 10.2 8.3 123 CANYON 7870 3.2 2.3 139 4.3 3.9 110 FISHER CREEK 9100 7.8 6.7 116 8.7 7.7 113 MADISON PLATEAU 7750 4.6 4.3 107 6.6 5.6 118 NORTHEAST ENTRANCE 7350 2.1 1.5 140 4.4 3.2 138 PARKER PEAK 9400 5.9 5.3 111 6.7 4.4 152 SYLVAN LAKE 8420 4.5 4.9 92 6.8 5.6 121 THUMB DIVIDE 7980 4.0 2.9 138 5.2 4.3 121 TWO OCEAN PLATEAU 9240 8.3 6.7 124 6.8 6.5 105 WHISKEY CREEK 6800 2.4 2.6 92 5.2 4.7 111 WHITE MILL 8700 5.4 4.9 110 6.6 6.0 110 WOLVERINE 7650 2.4 2.0 120 3.7 3.6 103 ----- ----- Basin wide percent of average 113 118 WIND RIVER BURROUGHS CREEK 8750 2.8 2.8 100 3.2 3.8 84 CASTLE CREEK 8400 1.3 -M * 2.1 -M * COLD SPRINGS 9630 1.7 2.5 68 1.8 3.6 50 DEER PARK 9700 4.6 4.0 115 5.2 5.7 91 HOBBS PARK 10100 3.1 4.3 72 2.7 3.9 69 LITTLE WARM 9370 2.7 2.6 104 2.3 3.7 62 SOUTH PASS 9040 3.2 3.8 84 3.3 4.8 69 ST. LAWRENCE ALT 8620 .8 2.0 40 1.5 3.0 50 TOGWOTEE PASS 9580 7.4 5.6 132 8.3 5.9 141 TOWNSEND CREEK 8700 1.3 2.3 57 2.9 3.8 76 ----- ----- Basin wide percent of average 92 82 BIGHORN BASIN BALD MTN. 9380 5.4 5.0 108 4.8 4.4 109 BEAR TRAP MEADOW 8200 1.0 1.3 77 2.3 3.0 77 BLACKWATER 9780 6.0 6.2 97 5.6 5.7 98 BONE SPRINGS DIV 9350 4.1 4.6 89 3.1 4.2 74 EVENING STAR 9200 6.1 6.4 95 7.3 6.5 112 GRAVE SPRINGS 8550 2.2 2.3 96 2.9 3.2 91 KIRWIN 9550 2.8 3.4 82 3.1 3.5 89 MARQUETTE 8760 .2 3.1 6 1.2 3.7 32 MIDDLE POWDER 7760 3.0 2.9 103 2.1 4.3 49 OWL CREEK 8975 .8 1.6 50 1.2 2.0 60 POWDER RIVER PASS 9480 3.2 2.6 123 4.0 3.5 114 SHELL CREEK 9580 4.0 4.4 91 3.4 3.8 89 SYLVAN LAKE 8420 4.5 4.9 92 6.8 5.6 121 SYLVAN ROAD 7120 2.3 2.4 96 4.6 5.2 88 TIMBER CREEK 7950 .6 2.0 30 1.2 2.7 44 YOUNTS PEAK 8350 4.1 3.5 117 3.9 4.2 93 ----- ----- Basin wide percent of average 89 88 SHOSHONE RIVER BLACKWATER 9780 6.0 6.2 97 5.6 5.7 98 EVENING STAR 9200 6.1 6.4 95 7.3 6.5 112 KIRWIN 9550 2.8 3.4 82 3.1 3.5 89 MARQUETTE 8760 .2 3.1 6 1.2 3.7 32 SYLVAN LAKE 8420 4.5 4.9 92 6.8 5.6 121 SYLVAN ROAD 7120 2.3 2.4 96 4.6 5.2 88 YOUNTS PEAK 8350 4.1 3.5 117 3.9 4.2 93 ----- ----- Basin wide percent of average 87 94 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 1.3 77 2.3 3.0 77 BIG GOOSE 7990 .8 1.8 44 2.5 2.8 89 BONE SPRINGS DIV 9350 4.1 4.6 89 3.1 4.2 74 BURGESS JUNCTION 7880 1.5 2.9 52 3.0 3.7 81 CLOUD PEAK RESERVOIR 9860 3.3 3.1 106 3.9 4.3 91 DOME LAKE 8880 1.1 3.6 31 2.9 4.3 67 GRAVE SPRINGS 8550 2.2 2.3 96 2.9 3.2 91 HANSEN SAWMILL 8360 .8 1.6 50 1.5 2.9 52 LITTLE GOOSE 8870 .9 -M * 4.2 -M * MIDDLE POWDER 7760 3.0 2.9 103 2.1 4.3 49 POWDER RIVER PASS 9480 3.2 2.6 123 4.0 3.5 114 SOLDIER PARK 8720 1.0 -M * 2.2 -M * SUCKER CREEK 8880 2.4 2.6 92 2.7 4.0 68 TIE CREEK 6870 .8 1.1 73 2.3 3.4 68 ----- ----- Basin wide percent of average 80 76 BELLE FOURCHE BLIND PARK 6890 .8 1.6 50 5.9 4.0 148 COLE CANYON 5910 1.1 1.7 65 3.2 2.7 119 NORTH RAPID CREEK 6130 .9 1.3 69 4.6 3.5 131 ----- ----- Basin wide percent of average 61 134 UPPER N. PLATTE RIVER COLUMBINE 9160 7.3 3.7 197 10.5 5.1 206 DIVIDE PEAK 8880 3.8 4.0 95 6.9 5.1 135 ELK RIVER 8700 3.7 2.2 168 7.1 4.3 165 JOE WRIGHT 10120 8.6 5.3 162 12.6 6.5 194 NORTH FRENCH CREEK 10130 10.2 6.4 159 11.0 6.3 175 OLD BATTLE 10000 9.0 7.2 125 10.6 7.4 143 SAGE CREEK BASIN 7850 2.0 2.3 87 5.3 3.0 177 SOUTH BRUSH CREEK 8440 4.3 2.2 195 7.2 4.5 160 TOWER 10500 15.0 9.9 152 16.3 8.5 192 WEBBER SPRINGS 9250 5.3 5.1 104 9.2 6.3 146 WILLOW CREEK PASS 9540 5.3 2.9 183 6.4 3.7 173 ----- ----- Basin wide percent of average 146 170 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 5.8 4.7 123 7.6 5.1 149 CASPER MTN. 7900 2.3 3.8 61 5.1 4.5 113 DEADMAN HILL 10220 4.6 4.3 107 8.0 4.5 178 DEER PARK 9700 4.6 4.0 115 5.2 5.7 91 LAPRELE CREEK 8375 2.1 2.5 84 3.8 3.6 106 RENO HILL 8400 3.1 3.5 89 5.1 4.4 116 ROACH 9700 5.0 3.3 152 7.3 4.4 166 SAND LAKE 10050 9.6 7.4 130 9.5 5.9 161 SOUTH PASS 9040 3.2 3.8 84 3.3 4.8 69 WINDY PEAK 7900 1.9 1.8 106 4.2 3.1 135 ----- ----- Basin wide percent of average 108 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.8 1.4 129 4.8 3.6 133 DIVIDE PEAK 8880 3.8 4.0 95 6.9 5.1 135 OLD BATTLE 10000 9.0 7.2 125 10.6 7.4 143 SANDSTONE RS 8150 1.3 1.7 76 6.7 4.6 146 WHISKEY PARK 8950 4.9 4.7 104 10.1 6.1 166 ----- ----- Basin wide percent of average 109 146 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.5 3.1 113 4.5 3.5 129 BLIND BULL SUM 8650 6.1 5.2 117 4.3 5.0 86 EAST RIM DIVIDE 7930 1.9 2.3 83 2.6 2.9 90 ELKHART PARK G.S. 9400 2.1 2.6 81 3.0 3.7 81 GROS VENTRE SUMMIT 8750 3.5 3.0 117 3.7 3.5 106 GUNSIGHT PASS 9820 3.9 -M * 4.5 -M * KENDALL R.S. 7740 1.6 2.3 70 3.5 3.3 106 LOOMIS PARK 8240 3.4 3.2 106 4.4 3.9 113 NEW FORK LAKE 8340 2.3 2.0 115 2.5 3.2 78 POCKET CREEK 9360 3.2 -M * 4.1 -M * SNIDER BASIN 8060 4.1 2.6 158 5.3 3.6 147 SPRING CREEK DIVIDE 9000 6.6 5.0 132 8.0 5.8 138 TRIPLE PEAK 8500 6.1 4.6 133 8.1 5.1 159 ----- ----- Basin wide percent of average 115 115 LOWER GREEN RIVER HAMS FORK 7840 2.5 1.7 147 4.1 2.9 141 HEWINTA 9519 .9 1.7 53 4.9 4.2 117 HICKERSON PARK 9145 .5 1.2 42 2.4 2.8 86 HOLE-IN-ROCK 9150 1.0 1.2 83 3.2 2.6 123 INDIAN CREEK 9425 6.7 4.9 137 7.1 5.5 129 KELLEY R.S. 8180 4.4 3.1 142 6.7 4.5 149 STEEL CREEK PARK 10200 3.1 3.2 97 6.0 4.4 136 ----- ----- Basin wide percent of average 112 128 UPPER BEAR RIVER BUG LAKE 7950 4.1 3.1 132 7.5 4.6 163 HAYDEN FORK 9212 3.1 2.3 135 8.8 5.0 176 KELLEY R.S. 8180 4.4 3.1 142 6.7 4.5 149 LILY LAKE 9156 3.7 2.3 161 7.0 4.7 149 MONTE CRISTO 8960 6.2 3.9 159 8.4 5.8 145 SALT RIVER SUMMIT 7760 2.3 1.8 128 5.5 4.0 138 TRIAL LAKE 9992 7.7 4.4 175 9.7 5.5 176 ----- ----- Basin wide percent of average 151 157 ----------------------------------------------------------------------------- -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 1971-2000. 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.