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: NOVEMBER 20 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .7 2.6 27 3.5 4.4 80 COTTONWOOD CREEK 7670 3.6 3.0 120 6.7 6.1 110 GRAND TARGHEE 9260 6.5 -M * 8.9 -M * GRANITE CREEK 6770 .5 2.1 24 4.8 3.9 123 GRASSY LAKE 7265 3.5 5.0 70 7.6 7.1 107 GROS VENTRE SUMMIT 8750 2.6 2.9 90 3.9 3.4 115 GUNSIGHT PASS 9820 2.2 -M * 3.5 -M * LEWIS LAKE DIVIDE 7850 4.4 5.0 88 7.9 7.1 111 PHILLIPS BENCH 8200 2.6 4.3 60 5.4 5.3 102 SALT RIVER SUMMIT 7760 1.0 1.6 62 3.2 3.7 86 SNAKE RIVER STATION 6920 .7 2.5 28 4.1 4.7 87 SPRING CREEK DIVIDE 9000 3.5 4.6 76 5.4 5.4 100 THUMB DIVIDE 7980 2.0 2.7 74 5.1 4.0 127 TOGWOTEE PASS 9580 5.8 5.3 109 6.7 5.5 122 TWO OCEAN PLATEAU 9240 7.0 6.3 111 5.4 6.1 89 WILLOW CREEK 8380 3.5 5.3 66 7.9 7.1 111 ----- ----- Basin wide percent of average 78 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 4.1 5.2 79 3.9 4.3 91 BLACK BEAR 8170 5.9 6.6 89 9.1 7.8 117 CANYON 7870 1.8 2.1 86 2.9 3.7 78 FISHER CREEK 9100 5.7 6.3 90 6.8 7.2 94 MADISON PLATEAU 7750 2.5 3.9 64 5.1 5.2 98 NORTHEAST ENTRANCE 7350 .0 1.4 0 3.3 3.0 110 PARKER PEAK 9400 4.6 5.0 92 3.8 4.2 90 SYLVAN LAKE 8420 2.8 4.5 62 4.9 5.2 94 THUMB DIVIDE 7980 2.0 2.7 74 5.1 4.0 127 TWO OCEAN PLATEAU 9240 7.0 6.3 111 5.4 6.1 89 WHISKEY CREEK 6800 1.5 2.4 62 4.4 4.4 100 WHITE MILL 8700 4.3 4.6 93 5.2 5.6 93 WOLVERINE 7650 .0 1.8 0 2.4 3.4 71 ----- ----- Basin wide percent of average 80 97 WIND RIVER BURROUGHS CREEK 8750 3.0 2.7 111 3.9 3.6 108 COLD SPRINGS 9630 1.8 2.4 75 3.4 3.4 100 DEER PARK 9700 3.0 4.0 75 4.8 5.5 87 HOBBS PARK 10100 3.2 4.1 78 3.7 3.8 97 LITTLE WARM 9370 2.7 2.5 108 3.9 3.5 111 SOUTH PASS 9040 2.9 3.6 81 4.9 4.5 109 ST. LAWRENCE ALT 8620 .5 1.9 26 2.7 2.9 93 TOGWOTEE PASS 9580 5.8 5.3 109 6.7 5.5 122 TOWNSEND CREEK 8700 1.9 2.2 86 3.7 3.7 100 ----- ----- Basin wide percent of average 86 104 BIGHORN BASIN BALD MTN. 9380 6.1 4.8 127 5.9 4.2 140 BEAR TRAP MEADOW 8200 .9 1.3 69 2.6 2.9 90 BLACKWATER 9780 4.1 5.9 69 4.2 5.4 78 BONE SPRINGS DIV 9350 4.8 4.5 107 4.6 4.1 112 EVENING STAR 9200 4.3 5.9 73 6.1 6.1 100 GRAVE SPRINGS 8550 1.0 2.3 43 2.8 3.1 90 KIRWIN 9550 3.2 3.3 97 3.5 3.3 106 MARQUETTE 8760 1.3 3.0 43 2.8 3.5 80 MIDDLE POWDER 7760 -M 2.8 * -M 4.2 * OWL CREEK 8975 2.4 1.6 150 2.7 1.9 142 POWDER RIVER PASS 9480 2.9 2.5 116 3.9 3.3 118 SHELL CREEK 9580 5.3 4.3 123 5.3 3.6 147 SYLVAN LAKE 8420 2.8 4.5 62 4.9 5.2 94 SYLVAN ROAD 7120 1.2 2.1 57 3.3 4.8 69 TIMBER CREEK 7950 1.5 2.0 75 3.6 2.6 138 YOUNTS PEAK 8350 3.0 3.3 91 3.8 3.9 97 ----- ----- Basin wide percent of average 87 104 SHOSHONE RIVER BLACKWATER 9780 4.1 5.9 69 4.2 5.4 78 EVENING STAR 9200 4.3 5.9 73 6.1 6.1 100 KIRWIN 9550 3.2 3.3 97 3.5 3.3 106 MARQUETTE 8760 1.3 3.0 43 2.8 3.5 80 SYLVAN LAKE 8420 2.8 4.5 62 4.9 5.2 94 SYLVAN ROAD 7120 1.2 2.1 57 3.3 4.8 69 YOUNTS PEAK 8350 3.0 3.3 91 3.8 3.9 97 ----- ----- Basin wide percent of average 71 89 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 1.3 69 2.6 2.9 90 BIG GOOSE 7990 1.0 1.7 59 3.3 2.7 122 BONE SPRINGS DIV 9350 4.8 4.5 107 4.6 4.1 112 BURGESS JUNCTION 7880 2.4 2.8 86 3.9 3.5 111 CLOUD PEAK RESERVOIR 9860 4.1 3.0 137 5.3 4.2 126 DOME LAKE 8880 3.1 3.5 89 4.4 4.1 107 GRAVE SPRINGS 8550 1.0 2.3 43 2.8 3.1 90 HANSEN SAWMILL 8360 .6 1.5 40 3.3 2.8 118 MIDDLE POWDER 7760 -M 2.8 * -M 4.2 * POWDER RIVER PASS 9480 2.9 2.5 116 3.9 3.3 118 SUCKER CREEK 8880 3.5 2.6 135 5.1 3.8 134 TIE CREEK 6870 .0 1.1 0 4.8 3.3 145 ----- ----- Basin wide percent of average 91 116 BELLE FOURCHE BLIND PARK 6890 3.3 1.6 206 5.7 3.9 146 COLE CANYON 5910 1.8 1.6 112 5.2 2.7 193 NORTH RAPID CREEK 6130 3.8 1.2 317 5.7 3.4 168 ----- ----- Basin wide percent of average 202 166 UPPER N. PLATTE RIVER COLUMBINE 9160 1.8 3.4 53 3.1 4.8 65 DIVIDE PEAK 8880 1.6 3.7 43 4.2 4.9 86 ELK RIVER 8700 .6 2.0 30 3.2 4.1 78 JOE WRIGHT 10120 4.1 5.1 80 5.8 6.2 94 NORTH FRENCH CREEK 10130 5.0 6.0 83 5.4 6.0 90 OLD BATTLE 10000 4.3 6.7 64 6.1 7.0 87 SAGE CREEK BASIN 7850 .3 2.1 14 2.2 2.8 79 SOUTH BRUSH CREEK 8440 1.7 2.0 85 3.5 4.3 81 TOWER 10500 5.1 9.2 55 6.3 8.1 78 WEBBER SPRINGS 9250 2.3 4.8 48 4.5 5.9 76 WILLOW CREEK PASS 9540 2.2 2.8 79 2.6 3.5 74 ----- ----- Basin wide percent of average 61 81 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.5 4.5 56 3.2 4.8 67 CASPER MTN. 7900 1.0 3.6 28 3.7 4.3 86 DEADMAN HILL 10220 2.8 4.1 68 2.8 4.3 65 DEER PARK 9700 3.0 4.0 75 4.8 5.5 87 LAPRELE CREEK 8375 .7 2.4 29 1.6 3.5 46 RENO HILL 8400 1.1 3.3 33 2.6 4.2 62 ROACH 9700 2.0 3.1 65 3.0 4.2 71 SAND LAKE 10050 4.8 7.0 69 4.5 5.6 80 SOUTH PASS 9040 2.9 3.6 81 4.9 4.5 109 WINDY PEAK 7900 1.0 1.7 59 1.5 3.0 50 ----- ----- Basin wide percent of average 58 74 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .5 1.3 38 3.2 3.5 91 DIVIDE PEAK 8880 1.6 3.7 43 4.2 4.9 86 OLD BATTLE 10000 4.3 6.7 64 6.1 7.0 87 SANDSTONE RS 8150 1.6 1.6 100 3.0 4.4 68 WHISKEY PARK 8950 2.4 4.4 55 4.8 5.8 83 ----- ----- Basin wide percent of average 59 83 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.9 2.9 66 2.6 3.4 76 BLIND BULL SUM 8650 4.1 4.8 85 4.7 4.7 100 EAST RIM DIVIDE 7930 .5 2.1 24 3.3 2.7 122 ELKHART PARK G.S. 9400 2.5 2.4 104 4.1 3.5 117 GROS VENTRE SUMMIT 8750 2.6 2.9 90 3.9 3.4 115 GUNSIGHT PASS 9820 2.2 -M * 3.5 -M * KENDALL R.S. 7740 1.0 2.1 48 3.6 3.1 116 LOOMIS PARK 8240 1.8 2.9 62 4.4 3.7 119 NEW FORK LAKE 8340 1.7 1.8 94 3.3 3.1 106 SNIDER BASIN 8060 1.1 2.4 46 2.9 3.4 85 SPRING CREEK DIVIDE 9000 3.5 4.6 76 5.4 5.4 100 TRIPLE PEAK 8500 3.2 4.2 76 4.8 4.8 100 ----- ----- Basin wide percent of average 72 104 LOWER GREEN RIVER HAMS FORK 7840 .0 1.6 0 2.7 2.7 100 HEWINTA 9519 .0 1.6 0 2.6 4.0 65 HICKERSON PARK 9145 .0 1.1 0 2.0 2.8 71 HOLE-IN-ROCK 9150 .4 1.1 36 2.5 2.6 96 INDIAN CREEK 9425 3.3 4.5 73 4.6 5.2 88 KELLEY R.S. 8180 3.3 2.9 114 3.7 4.3 86 STEEL CREEK PARK 10200 .5 3.1 16 3.4 4.2 81 ----- ----- Basin wide percent of average 47 83 UPPER BEAR RIVER BUG LAKE 7950 1.1 2.9 38 3.1 4.4 70 HAYDEN FORK 9212 1.3 2.1 62 4.0 4.7 85 KELLEY R.S. 8180 3.3 2.9 114 3.7 4.3 86 LILY LAKE 9156 1.4 2.1 67 3.5 4.5 78 MONTE CRISTO 8960 2.1 3.6 58 4.6 5.4 85 SALT RIVER SUMMIT 7760 1.0 1.6 62 3.2 3.7 86 TRIAL LAKE 9992 2.9 4.1 71 4.2 5.2 81 ----- ----- Basin wide percent of average 68 82 ----------------------------------------------------------------------------- -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.