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 FRIDAY: NOVEMBER 11 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .7 1.5 47* 4.3 3.2 134 COTTONWOOD CREEK 7670 .5 1.9 26* 5.1 4.6 111 GRAND TARGHEE 9260 4.1 -M * 6.3 -M * GRANITE CREEK 6770 .3 1.2 25* 2.7 2.8 96 GRASSY LAKE 7265 1.0 3.1 32* 6.1 5.2 117 GROS VENTRE SUMMIT 8750 .7 2.1 33 2.4 2.6 92 GUNSIGHT PASS 9820 1.2 -M * 3.0 -M * LEWIS LAKE DIVIDE 7850 .8 3.0 27* 5.2 5.0 104 PHILLIPS BENCH 8200 .2 2.8 7* 2.8 3.8 74 SALT RIVER SUMMIT 7760 .4 .9 44* 2.3 2.9 79 SNAKE RIVER STATION 6920 .6 1.4 43* 4.7 3.4 138 SPRING CREEK DIVIDE 9000 1.7 2.9 59 3.6 4.0 90 THUMB DIVIDE 7980 .5 1.7 29* 3.5 3.1 113 TOGWOTEE PASS 9580 2.1 4.0 53 4.1 4.2 98 TWO OCEAN PLATEAU 9240 5.2 4.7 111 4.7 4.6 102 WILLOW CREEK 8380 .7 3.5 20 6.1 5.4 113 ----- ----- Basin wide percent of average 44* 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.9 4.1 95 4.4 3.2 138 BLACK BEAR 8170 3.8 4.6 83 6.8 5.6 121 CANYON 7870 1.0 1.3 77* 2.9 2.8 104 FISHER CREEK 9100 3.4 4.6 74 6.0 5.2 115 MADISON PLATEAU 7750 1.5 2.8 54 5.4 3.8 142 NORTHEAST ENTRANCE 7350 .4 .9 44* 2.7 2.3 117 PARKER PEAK 9400 3.3 3.9 85 5.4 3.3 164 SYLVAN LAKE 8420 1.7 3.3 52 5.7 3.9 146 THUMB DIVIDE 7980 .5 1.7 29* 3.5 3.1 113 TWO OCEAN PLATEAU 9240 5.2 4.7 111 4.7 4.6 102 WHISKEY CREEK 6800 1.0 1.5 67* 4.4 3.4 129 WHITE MILL 8700 1.9 3.3 58 4.5 4.1 110 WOLVERINE 7650 1.6 1.1 145* 3.9 2.6 150 ----- ----- Basin wide percent of average 77 126 WIND RIVER BURROUGHS CREEK 8750 .7 1.8 39 2.0 2.6 77 CASTLE CREEK 8400 .7 -M * 1.7 -M * COLD SPRINGS 9630 1.1 1.8 61 2.4 2.8 86 DEER PARK 9700 1.6 3.6 44 3.7 4.1 90 HOBBS PARK 10100 2.9 3.1 94 3.3 3.1 106 LITTLE WARM 9370 .3 1.8 17 2.2 2.7 81 SOUTH PASS 9040 1.2 2.7 44 2.9 3.4 85 ST. LAWRENCE ALT 8620 .4 1.5 27 1.7 2.4 71 TOGWOTEE PASS 9580 2.1 4.0 53 4.1 4.2 98 TOWNSEND CREEK 8700 1.1 1.7 65 3.5 3.0 117 ----- ----- Basin wide percent of average 52 91 BIGHORN BASIN BALD MTN. 9380 4.8 3.9 123 4.9 3.4 144 BEAR TRAP MEADOW 8200 .5 1.0 50 2.5 2.4 104 BLACKWATER 9780 4.5 4.4 102 4.8 4.0 120 BONE SPRINGS DIV 9350 4.9 3.7 132 5.3 3.4 156 EVENING STAR 9200 3.3 4.5 73 6.5 4.4 148 GRAVE SPRINGS 8550 .6 1.8 33 2.8 2.6 108 KIRWIN 9550 2.6 2.7 96 3.7 2.7 137 MARQUETTE 8760 .8 -M * 4.3 3.1 139 MIDDLE POWDER 7760 1.1 2.1 52 4.9 3.5 140 OWL CREEK 8975 1.2 1.3 92 2.1 1.6 131 POWDER RIVER PASS 9480 2.5 2.1 119 3.8 2.7 141 SHELL CREEK 9580 5.1 3.6 142 4.8 2.9 166 SYLVAN LAKE 8420 1.7 3.3 52 5.7 3.9 146 SYLVAN ROAD 7120 .9 1.3 69 3.4 3.4 100 TIMBER CREEK 7950 .7 1.6 44 4.2 2.2 191 YOUNTS PEAK 8350 1.3 2.4 54 3.0 2.9 103 ----- ----- Basin wide percent of average 90 136 SHOSHONE RIVER BLACKWATER 9780 4.5 4.4 102 4.8 4.0 120 EVENING STAR 9200 3.3 4.5 73 6.5 4.4 148 KIRWIN 9550 2.6 2.7 96 3.7 2.7 137 MARQUETTE 8760 .8 -M * 4.3 3.1 139 SYLVAN LAKE 8420 1.7 3.3 52 5.7 3.9 146 SYLVAN ROAD 7120 .9 1.3 69 3.4 3.4 100 YOUNTS PEAK 8350 1.3 2.4 54 3.0 2.9 103 ----- ----- Basin wide percent of average 77 129 POWDER-TONGUE BEAR TRAP MEADOW 8200 .5 1.0 50 2.5 2.4 104 BIG GOOSE 7990 2.4 1.3 185 6.0 2.5 240 BONE SPRINGS DIV 9350 4.9 3.7 132 5.3 3.4 156 BURGESS JUNCTION 7880 2.4 2.4 100 5.6 3.0 187 CLOUD PEAK RESERVOIR 9860 3.1 2.4 129 5.2 3.5 149 DOME LAKE 8880 3.4 2.9 117 6.3 3.4 185 GRAVE SPRINGS 8550 .6 1.8 33 2.8 2.6 108 HANSEN SAWMILL 8360 1.0 1.3 77 2.8 2.4 117 LITTLE GOOSE 8870 2.8 -M * 6.5 -M * MIDDLE POWDER 7760 1.1 2.1 52 4.9 3.5 140 POWDER RIVER PASS 9480 2.5 2.1 119 3.8 2.7 141 SOLDIER PARK 8720 .3 -M * 3.8 -M * SUCKER CREEK 8880 4.2 2.1 200 5.5 3.2 172 TIE CREEK 6870 1.0 1.2 83 6.0 3.0 200 ----- ----- Basin wide percent of average 112 159 BELLE FOURCHE BLIND PARK 6890 .8 1.4 57 1.5 3.3 45 COLE CANYON 5910 .0 1.4 0 1.6 2.3 70 NORTH RAPID CREEK 6130 1.2 .9 133 1.2 3.0 40 ----- ----- Basin wide percent of average 54 50 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 3.4 -M * 5.0 -M * CINNABAR PARK 9574 2.0 2.9 69 4.4 4.0 110 COLUMBINE 9160 1.1 2.1 52* 3.6 3.6 100 DIVIDE PEAK 8880 2.0 2.8 71 5.1 3.8 134 ELK RIVER 8700 .8 1.3 62* 3.0 3.1 97 JOE WRIGHT 10120 1.9 4.0 48 5.4 4.9 110 NORTH FRENCH CREEK 10130 3.2 4.7 68 4.5 4.8 94 OLD BATTLE 10000 3.7 4.9 76 5.3 5.3 100 SAGE CREEK BASIN 7850 1.1 1.6 69 2.8 2.2 127 SOUTH BRUSH CREEK 8440 .8 1.4 57 3.5 3.6 97 TOWER 10500 4.0 6.4 63 5.3 6.0 88 WEBBER SPRINGS 9250 1.7 3.4 50 4.6 4.6 100 WILLOW CREEK PASS 9540 2.7 2.0 135 2.9 2.8 104 ----- ----- Basin wide percent of average 67 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.6 3.3 48 3.9 3.7 105 CASPER MTN. 7900 2.9 2.7 107 6.5 3.6 181 DEADMAN HILL 10220 4.1 3.2 128 4.5 3.4 132 DEER PARK 9700 1.6 3.6 44 3.7 4.1 90 LAPRELE CREEK 8375 1.5 1.7 88 3.8 2.8 136 RENO HILL 8400 3.2 2.6 123 5.0 3.5 143 ROACH 9700 2.4 2.2 109 4.4 3.3 133 SAND LAKE 10050 4.3 5.2 83 5.2 4.4 118 SOUTH PASS 9040 1.2 2.7 44 2.9 3.4 85 WINDY PEAK 7900 1.4 1.1 127 2.9 2.4 121 ----- ----- Basin wide percent of average 86 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.0 1.0 100* 2.6 2.7 96 DIVIDE PEAK 8880 2.0 2.8 71 5.1 3.8 134 OLD BATTLE 10000 3.7 4.9 76 5.3 5.3 100 SANDSTONE RS 8150 1.0 1.0 100* 2.6 3.4 76 WHISKEY PARK 8950 1.1 3.1 35 4.3 4.4 98 ----- ----- Basin wide percent of average 69 102 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.4 2.1 67 2.5 2.6 96 BLIND BULL SUM 8650 1.0 3.2 31 2.5 3.4 74 EAST RIM DIVIDE 7930 .3 1.3 23* 2.3 2.1 110 ELKHART PARK G.S. 9400 1.4 1.6 88 3.3 2.8 118 GROS VENTRE SUMMIT 8750 .7 2.1 33 2.4 2.6 92 GUNSIGHT PASS 9820 1.2 -M * 3.0 -M * KENDALL R.S. 7740 .6 1.4 43* 2.4 2.4 100 LOOMIS PARK 8240 .3 1.9 16 2.8 2.8 100 NEW FORK LAKE 8340 1.1 1.2 92 2.9 2.3 126 POCKET CREEK 9360 1.8 -M * 3.0 -M * SNIDER BASIN 8060 .3 1.5 20 1.8 2.5 72 SPRING CREEK DIVIDE 9000 1.7 2.9 59 3.6 4.0 90 TRIPLE PEAK 8500 1.1 2.6 42 3.4 3.5 97 ----- ----- Basin wide percent of average 45 96 LOWER GREEN RIVER HAMS FORK 7840 .1 .9 11* 2.8 2.1 133 HEWINTA 9519 .7 1.3 54 3.7 3.3 112 HICKERSON PARK 9145 .6 .8 75* 4.8 2.3 209 HOLE-IN-ROCK 9150 1.2 .8 150 4.4 2.2 200 INDIAN CREEK 9425 1.9 3.0 63 3.6 3.9 92 KELLEY R.S. 8180 1.0 1.9 53 3.3 3.3 100 STEEL CREEK PARK 10200 1.5 2.4 63 4.4 3.3 133 ----- ----- Basin wide percent of average 63 132 UPPER BEAR RIVER BUG LAKE 7950 .0 2.1 0* 2.9 3.4 85 HAYDEN FORK 9212 1.0 1.5 67* 4.9 3.6 136 KELLEY R.S. 8180 1.0 1.9 53 3.3 3.3 100 LILY LAKE 9156 .4 1.6 25 3.5 3.5 100 MONTE CRISTO 8960 1.2 2.6 46* 3.5 4.1 85 SALT RIVER SUMMIT 7760 .4 .9 44* 2.3 2.9 79 TRIAL LAKE 9992 2.0 3.1 65 2.8 4.0 70 ----- ----- Basin wide percent of average 44* 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 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.