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 SUNDAY: NOVEMBER 15 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .9 1.9 47 3.5 3.6 97 COTTONWOOD CREEK 7670 -M 2.2 * -M 5.0 * GRAND TARGHEE 9260 7.6 -M * 6.4 -M * GRANITE CREEK 6770 .1 1.5 7 2.7 3.1 87 GRASSY LAKE 7265 2.3 3.7 62 5.0 5.8 86 GROS VENTRE SUMMIT 8750 2.2 2.4 92 2.3 2.9 79 GUNSIGHT PASS 9820 1.7 -M * 3.2 -M * LEWIS LAKE DIVIDE 7850 -M 3.6 * -M 5.7 * PHILLIPS BENCH 8200 1.6 3.3 48 3.6 4.2 86 SALT RIVER SUMMIT 7760 .1 1.1 9 2.5 3.1 81 SNAKE RIVER STATION 6920 1.0 1.8 56 4.7 3.8 124 SPRING CREEK DIVIDE 9000 3.6 3.4 106 4.4 4.5 98 THUMB DIVIDE 7980 2.2 2.0 110 5.3 3.4 156 TOGWOTEE PASS 9580 4.8 4.4 109 5.1 4.6 111 TWO OCEAN PLATEAU 9240 6.8 5.2 131 5.3 5.1 104 WILLOW CREEK 8380 2.4 4.1 59 6.3 6.0 105 ----- ----- Basin wide percent of average 80 101 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 4.9 4.6 107 3.8 3.5 109 BLACK BEAR 8170 6.4 5.3 121 7.6 6.3 121 CANYON 7870 2.4 1.7 141 3.8 3.1 123 FISHER CREEK 9100 7.4 5.1 145 7.3 5.8 126 MADISON PLATEAU 7750 3.9 3.2 122 7.0 4.2 167 NORTHEAST ENTRANCE 7350 .5 1.0 50 3.4 2.5 136 PARKER PEAK 9400 5.5 4.3 128 4.2 3.5 120 SYLVAN LAKE 8420 2.6 3.8 68 4.7 4.3 109 THUMB DIVIDE 7980 2.2 2.0 110 5.3 3.4 156 TWO OCEAN PLATEAU 9240 6.8 5.2 131 5.3 5.1 104 WHISKEY CREEK 6800 1.6 1.8 89 4.3 3.7 116 WHITE MILL 8700 5.4 3.8 142 4.8 4.6 104 WOLVERINE 7650 .9 1.4 64 2.4 2.9 83 ----- ----- Basin wide percent of average 117 121 WIND RIVER BURROUGHS CREEK 8750 3.0 2.1 143 2.6 2.9 90 COLD SPRINGS 9630 2.3 2.0 115 3.1 3.0 103 DEER PARK 9700 5.0 3.7 135 6.0 4.6 130 HOBBS PARK 10100 5.4 3.6 150 5.1 3.3 155 LITTLE WARM 9370 1.7 2.1 81 2.5 3.0 83 SOUTH PASS 9040 4.1 3.0 137 5.0 3.8 132 ST. LAWRENCE ALT 8620 1.7 1.6 106 3.8 2.6 146 TOGWOTEE PASS 9580 4.8 4.4 109 5.1 4.6 111 TOWNSEND CREEK 8700 2.9 1.9 153 4.8 3.2 150 ----- ----- Basin wide percent of average 127 123 BIGHORN BASIN BALD MTN. 9380 3.9 4.3 91 3.2 3.7 86 BEAR TRAP MEADOW 8200 1.1 1.1 100 2.1 2.6 81 BLACKWATER 9780 6.2 5.0 124 5.3 4.4 120 BONE SPRINGS DIV 9350 3.5 4.1 85 3.1 3.6 86 EVENING STAR 9200 6.0 5.1 118 7.0 4.9 143 GRAVE SPRINGS 8550 2.4 2.0 120 3.8 2.7 141 KIRWIN 9550 3.1 2.9 107 2.6 2.9 90 MARQUETTE 8760 2.8 2.7 104 3.2 3.2 100 MIDDLE POWDER 7760 2.2 2.4 92 2.8 3.8 74 OWL CREEK 8975 2.4 1.4 171 1.9 1.7 112 POWDER RIVER PASS 9480 2.2 2.3 96 2.3 2.9 79 SHELL CREEK 9580 3.8 3.9 97 3.6 3.1 116 SYLVAN LAKE 8420 2.6 3.8 68 4.7 4.3 109 SYLVAN ROAD 7120 1.1 1.7 65 3.8 3.8 100 TIMBER CREEK 7950 .8 1.7 47 2.4 2.3 104 YOUNTS PEAK 8350 3.0 2.7 111 2.5 3.2 78 ----- ----- Basin wide percent of average 100 102 SHOSHONE RIVER BLACKWATER 9780 6.2 5.0 124 5.3 4.4 120 EVENING STAR 9200 6.0 5.1 118 7.0 4.9 143 KIRWIN 9550 3.1 2.9 107 2.6 2.9 90 MARQUETTE 8760 2.8 2.7 104 3.2 3.2 100 SYLVAN LAKE 8420 2.6 3.8 68 4.7 4.3 109 SYLVAN ROAD 7120 1.1 1.7 65 3.8 3.8 100 YOUNTS PEAK 8350 3.0 2.7 111 2.5 3.2 78 ----- ----- Basin wide percent of average 104 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.1 1.1 100 2.1 2.6 81 BIG GOOSE 7990 1.7 1.4 121 3.3 2.6 127 BONE SPRINGS DIV 9350 3.5 4.1 85 3.1 3.6 86 BURGESS JUNCTION 7880 3.1 2.6 119 3.7 3.2 116 CLOUD PEAK RESERVOIR 9860 3.6 2.7 133 3.1 3.8 82 DOME LAKE 8880 2.3 3.2 72 3.6 3.6 100 GRAVE SPRINGS 8550 2.4 2.0 120 3.8 2.7 141 HANSEN SAWMILL 8360 1.2 1.3 92 2.1 2.5 84 MIDDLE POWDER 7760 2.2 2.4 92 2.8 3.8 74 POWDER RIVER PASS 9480 2.2 2.3 96 2.3 2.9 79 SUCKER CREEK 8880 3.7 2.3 161 4.1 3.4 121 TIE CREEK 6870 .1 1.2 8 4.0 3.1 129 ----- ----- Basin wide percent of average 102 101 BELLE FOURCHE BLIND PARK 6890 .8 1.5 53 4.1 3.5 117 COLE CANYON 5910 .0 1.5 0 3.9 2.5 156 NORTH RAPID CREEK 6130 .9 1.0 90 4.1 3.2 128 ----- ----- Basin wide percent of average 43 132 UPPER N. PLATTE RIVER COLUMBINE 9160 1.5 2.5 60 4.8 4.0 120 DIVIDE PEAK 8880 3.8 3.1 123 6.9 4.2 164 ELK RIVER 8700 1.3 1.5 87 4.4 3.4 129 JOE WRIGHT 10120 3.5 4.4 80 5.6 5.3 106 NORTH FRENCH CREEK 10130 8.8 5.1 173 9.0 5.2 173 OLD BATTLE 10000 9.1 5.5 165 9.4 5.8 162 SAGE CREEK BASIN 7850 1.9 1.8 106 4.1 2.4 171 SOUTH BRUSH CREEK 8440 2.2 1.6 138 5.7 3.8 150 TOWER 10500 8.4 7.4 114 8.5 6.7 127 WEBBER SPRINGS 9250 4.5 3.8 118 7.7 5.0 154 WILLOW CREEK PASS 9540 1.5 2.3 65 3.2 3.1 103 ----- ----- Basin wide percent of average 119 142 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 5.6 3.7 151 6.6 4.1 161 CASPER MTN. 7900 2.9 3.0 97 4.2 3.8 111 DEADMAN HILL 10220 2.2 3.5 63 6.0 3.7 162 DEER PARK 9700 5.0 3.7 135 6.0 4.6 130 LAPRELE CREEK 8375 2.0 2.0 100 4.2 3.0 140 RENO HILL 8400 3.9 2.8 139 5.2 3.8 137 ROACH 9700 4.6 2.5 184 6.2 3.6 172 SAND LAKE 10050 9.1 5.8 157 9.4 4.8 196 SOUTH PASS 9040 4.1 3.0 137 5.0 3.8 132 WINDY PEAK 7900 1.4 1.3 108 3.9 2.6 150 ----- ----- Basin wide percent of average 130 150 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .9 1.1 82 3.2 3.0 107 DIVIDE PEAK 8880 3.8 3.1 123 6.9 4.2 164 OLD BATTLE 10000 9.1 5.5 165 9.4 5.8 162 SANDSTONE RS 8150 .0 1.2 0 3.7 3.7 100 WHISKEY PARK 8950 3.6 3.5 103 7.3 4.8 152 ----- ----- Basin wide percent of average 121 142 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.9 2.3 126 3.1 2.9 107 BLIND BULL SUM 8650 2.9 3.7 78 2.8 3.8 74 EAST RIM DIVIDE 7930 .1 1.6 6 1.9 2.3 83 ELKHART PARK G.S. 9400 2.1 1.9 111 2.7 3.0 90 GROS VENTRE SUMMIT 8750 2.2 2.4 92 2.3 2.9 79 GUNSIGHT PASS 9820 1.7 -M * 3.2 -M * KENDALL R.S. 7740 .1 1.6 6 2.1 2.6 81 LOOMIS PARK 8240 .4 2.2 18 2.6 3.1 84 NEW FORK LAKE 8340 .2 1.4 14 1.3 2.6 50 SNIDER BASIN 8060 1.1 1.8 61 2.7 2.8 96 SPRING CREEK DIVIDE 9000 3.6 3.4 106 4.4 4.5 98 TRIPLE PEAK 8500 3.3 3.1 106 4.8 3.9 123 ----- ----- Basin wide percent of average 74 89 LOWER GREEN RIVER HAMS FORK 7840 .3 1.1 27 3.2 2.3 139 HEWINTA 9519 .9 1.4 64 3.0 3.5 86 HICKERSON PARK 9145 1.3 .9 144 3.5 2.5 140 HOLE-IN-ROCK 9150 1.2 .9 133 3.9 2.3 170 INDIAN CREEK 9425 4.4 3.5 126 4.7 4.3 109 KELLEY R.S. 8180 -M 2.2 * -M 3.6 * STEEL CREEK PARK 10200 2.4 2.6 92 3.9 3.6 108 ----- ----- Basin wide percent of average 101 120 UPPER BEAR RIVER BUG LAKE 7950 .7 2.3 30 3.9 3.7 105 HAYDEN FORK 9212 1.1 1.7 65 3.9 4.0 98 KELLEY R.S. 8180 -M 2.2 * -M 3.6 * LILY LAKE 9156 1.7 1.7 100 3.3 3.8 87 MONTE CRISTO 8960 2.1 2.9 72 4.4 4.5 98 SALT RIVER SUMMIT 7760 .1 1.1 9 2.5 3.1 81 TRIAL LAKE 9992 2.9 3.4 85 3.6 4.4 82 ----- ----- Basin wide percent of average 66 92 ----------------------------------------------------------------------------- -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.