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 11 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .6 1.4 43 5.5 3.0 183 COTTONWOOD CREEK 7670 2.1 1.8 117 5.1 4.4 116 GRANITE CREEK 6770 .7 1.1 64 4.4 2.7 163 GRASSY LAKE 7265 2.6 2.9 90 7.3 5.0 146 GROS VENTRE SUMMIT 8750 2.7 2.1 129 4.4 2.5 176 LEWIS LAKE DIVIDE 7850 1.7 2.8 61 6.6 4.8 138 PHILLIPS BENCH 8200 1.8 2.7 67 5.7 3.6 158 SALT RIVER SUMMIT 7760 .1 .8 12 2.6 2.8 93 SNAKE RIVER STATION 6920 .2 1.3 15 5.4 3.3 164 SPRING CREEK DIVIDE 9000 1.9 2.8 68 3.4 3.9 87 THUMB DIVIDE 7980 .8 1.6 50 4.9 2.9 169 TOGWOTEE PASS 9580 5.1 3.8 134 6.2 4.0 155 TWO OCEAN PLATEAU 9240 6.1 4.5 136 6.7 4.4 152 WILLOW CREEK 8380 2.1 3.3 64 6.9 5.2 133 ----- ----- Basin wide percent of average 87 143 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 5.5 4.0 138 5.2 3.1 168 BLACK BEAR 8170 4.7 4.5 104 7.3 5.4 135 CANYON 7870 1.5 1.3 115 4.3 2.7 159 FISHER CREEK 9100 6.3 4.4 143 7.3 5.0 146 MADISON PLATEAU 7750 2.0 2.7 74 5.5 3.7 149 NORTHEAST ENTRANCE 7350 .2 .8 25 3.5 2.2 159 PARKER PEAK 9400 5.0 3.8 132 6.2 3.2 194 SYLVAN LAKE 8420 2.4 3.2 75 6.3 3.7 170 THUMB DIVIDE 7980 .8 1.6 50 4.9 2.9 169 TWO OCEAN PLATEAU 9240 6.1 4.5 136 6.7 4.4 152 WHISKEY CREEK 6800 .8 1.5 53 4.7 3.2 147 WHITE MILL 8700 4.5 3.3 136 5.7 4.0 142 WOLVERINE 7650 .3 1.1 27 3.8 2.5 152 ----- ----- Basin wide percent of average 109 155 WIND RIVER BURROUGHS CREEK 8750 2.2 1.8 122 4.4 2.5 176 COLD SPRINGS 9630 .3 1.7 18 2.4 2.7 89 DEER PARK 9700 1.6 3.6 44 3.3 3.9 85 HOBBS PARK 10100 1.6 3.1 52 3.4 3.0 113 LITTLE WARM 9370 1.1 1.7 65 3.3 2.6 127 SOUTH PASS 9040 .1 2.6 4 2.4 3.2 75 ST. LAWRENCE ALT 8620 .3 1.4 21 1.5 2.4 62 TOGWOTEE PASS 9580 5.1 3.8 134 6.2 4.0 155 TOWNSEND CREEK 8700 .3 1.6 19 2.6 2.9 90 ----- ----- Basin wide percent of average 59 108 BIGHORN BASIN BALD MTN. 9380 3.2 3.9 82 3.9 3.3 118 BEAR TRAP MEADOW 8200 .9 1.0 90 2.3 2.3 100 BLACKWATER 9780 5.5 4.4 125 5.5 3.8 145 BONE SPRINGS DIV 9350 2.7 3.7 73 4.2 3.3 127 EVENING STAR 9200 4.7 4.4 107 7.2 4.2 171 GRAVE SPRINGS 8550 1.4 1.7 82 2.8 2.5 112 KIRWIN 9550 3.9 2.7 144 5.1 2.6 196 MARQUETTE 8760 .0 2.5 0 3.3 3.0 110 MIDDLE POWDER 7760 1.8 2.1 86 2.8 3.5 80 OWL CREEK 8975 1.0 1.2 83 2.6 1.6 162 POWDER RIVER PASS 9480 1.7 2.0 85 3.6 2.6 138 SHELL CREEK 9580 4.5 3.6 125 5.1 2.8 182 SYLVAN LAKE 8420 2.4 3.2 75 6.3 3.7 170 SYLVAN ROAD 7120 .4 1.3 31 5.5 3.2 172 TIMBER CREEK 7950 .3 1.6 19 3.4 2.2 155 YOUNTS PEAK 8350 3.0 2.4 125 5.8 2.8 207 ----- ----- Basin wide percent of average 90 146 SHOSHONE RIVER BLACKWATER 9780 5.5 4.4 125 5.5 3.8 145 EVENING STAR 9200 4.7 4.4 107 7.2 4.2 171 KIRWIN 9550 3.9 2.7 144 5.1 2.6 196 MARQUETTE 8760 .0 2.5 0 3.3 3.0 110 SYLVAN LAKE 8420 2.4 3.2 75 6.3 3.7 170 SYLVAN ROAD 7120 .4 1.3 31 5.5 3.2 172 YOUNTS PEAK 8350 3.0 2.4 125 5.8 2.8 207 ----- ----- Basin wide percent of average 95 166 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 1.0 90 2.3 2.3 100 BIG GOOSE 7990 1.4 1.2 117 4.5 2.5 180 BONE SPRINGS DIV 9350 2.7 3.7 73 4.2 3.3 127 BURGESS JUNCTION 7880 1.6 2.4 67 3.6 2.9 124 CLOUD PEAK RESERVOIR 9860 3.0 2.4 125 5.6 3.4 165 DOME LAKE 8880 2.2 2.9 76 4.8 3.3 145 GRAVE SPRINGS 8550 1.4 1.7 82 2.8 2.5 112 HANSEN SAWMILL 8360 1.2 1.3 92 3.5 2.4 146 MIDDLE POWDER 7760 1.8 2.1 86 2.8 3.5 80 POWDER RIVER PASS 9480 1.7 2.0 85 3.6 2.6 138 SUCKER CREEK 8880 2.2 2.0 110 4.2 3.1 135 TIE CREEK 6870 .1 1.2 8 3.1 3.0 103 ----- ----- Basin wide percent of average 85 129 BELLE FOURCHE BLIND PARK 6890 .3 1.4 21 1.6 3.3 48 COLE CANYON 5910 .0 1.3 0 1.4 2.3 61 NORTH RAPID CREEK 6130 .6 .8 75 1.2 3.0 40 ----- ----- Basin wide percent of average 26 49 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 2.0 5 4.0 3.4 118 DIVIDE PEAK 8880 2.0 2.7 74 3.3 3.7 89 ELK RIVER 8700 .6 1.2 50 3.4 3.0 113 JOE WRIGHT 10120 3.3 3.8 87 5.4 4.7 115 NORTH FRENCH CREEK 10130 3.1 4.5 69 4.7 4.7 100 OLD BATTLE 10000 2.8 4.7 60 4.8 5.1 94 SAGE CREEK BASIN 7850 .0 1.6 0 2.7 2.2 123 SOUTH BRUSH CREEK 8440 1.1 1.3 85 3.8 3.5 109 TOWER 10500 3.3 6.2 53 5.4 5.8 93 WEBBER SPRINGS 9250 1.4 3.2 44 3.9 4.4 89 WILLOW CREEK PASS 9540 2.9 1.9 153 3.3 2.8 118 ----- ----- Basin wide percent of average 62 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.7 3.2 53 3.1 3.6 86 CASPER MTN. 7900 1.2 2.6 46 3.8 3.5 109 DEADMAN HILL 10220 3.5 3.1 113 3.6 3.3 109 DEER PARK 9700 1.6 3.6 44 3.3 3.9 85 LAPRELE CREEK 8375 .1 1.7 6 2.3 2.7 85 RENO HILL 8400 2.1 2.5 84 4.1 3.4 121 ROACH 9700 1.9 2.1 90 3.4 3.2 106 SAND LAKE 10050 4.3 5.0 86 5.2 4.3 121 SOUTH PASS 9040 .1 2.6 4 2.4 3.2 75 WINDY PEAK 7900 .5 1.1 45 2.0 2.3 87 ----- ----- Basin wide percent of average 62 99 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .9 * 2.4 2.7 89 DIVIDE PEAK 8880 2.0 2.7 74 3.3 3.7 89 OLD BATTLE 10000 2.8 4.7 60 4.8 5.1 94 SANDSTONE RS 8150 .0 1.0 0 2.5 3.3 76 WHISKEY PARK 8950 2.1 2.9 72 4.4 4.2 105 ----- ----- Basin wide percent of average 61 92 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.4 2.0 70 2.1 2.6 81 BLIND BULL SUM 8650 1.9 3.0 63 3.2 3.3 97 EAST RIM DIVIDE 7930 .0 1.3 0 2.1 2.0 105 ELKHART PARK G.S. 9400 1.2 1.5 80 2.7 2.7 100 GROS VENTRE SUMMIT 8750 2.7 2.1 129 4.4 2.5 176 KENDALL R.S. 7740 .4 1.3 31 2.4 2.3 104 LOOMIS PARK 8240 .5 1.8 28 2.7 2.7 100 NEW FORK LAKE 8340 .6 1.1 55 2.6 2.3 113 SNIDER BASIN 8060 .3 1.5 20 2.0 2.4 83 SPRING CREEK DIVIDE 9000 1.9 2.8 68 3.4 3.9 87 TRIPLE PEAK 8500 2.6 2.5 104 4.7 3.4 138 ----- ----- Basin wide percent of average 65 107 LOWER GREEN RIVER HAMS FORK 7840 .0 .9 0 1.7 2.0 85 HEWINTA 9519 -M 1.2 * 4.5 3.2 141 HICKERSON PARK 9145 .0 .8 0 2.9 2.3 126 HOLE-IN-ROCK 9150 .2 .8 25 3.5 2.1 167 INDIAN CREEK 9425 1.6 2.8 57 2.8 3.8 74 KELLEY R.S. 8180 .6 1.8 33 3.0 3.1 97 STEEL CREEK PARK 10200 1.6 2.3 70 4.8 3.3 145 ----- ----- Basin wide percent of average 43 117 UPPER BEAR RIVER BUG LAKE 7950 .1 2.0 5 1.4 3.3 42 HAYDEN FORK 9212 .2 1.4 14 3.6 3.5 103 KELLEY R.S. 8180 .6 1.8 33 3.0 3.1 97 LILY LAKE 9156 .2 1.5 13 3.8 3.4 112 MONTE CRISTO 8960 .5 2.5 20 3.3 4.0 82 SALT RIVER SUMMIT 7760 .1 .8 12 2.6 2.8 93 TRIAL LAKE 9992 1.4 2.9 48 3.0 3.9 77 ----- ----- Basin wide percent of average 24 86 ----------------------------------------------------------------------------- -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.