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 27 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.3 3.4 38 3.8 5.3 72 COTTONWOOD CREEK 7670 1.4 3.9 36 5.3 7.1 75 GRAND TARGHEE 9260 9.5 -M * 7.6 -M * GRANITE CREEK 6770 .6 2.8 21 3.2 4.7 68 GRASSY LAKE 7265 3.3 6.5 51 6.1 8.5 72 GROS VENTRE SUMMIT 8750 2.4 3.4 71 2.6 3.9 67 GUNSIGHT PASS 9820 2.2 -M * 3.5 -M * LEWIS LAKE DIVIDE 7850 4.0 6.4 62 6.5 8.6 76 PHILLIPS BENCH 8200 2.6 5.4 48 4.7 6.5 72 SALT RIVER SUMMIT 7760 .7 2.1 33 2.9 4.4 66 SNAKE RIVER STATION 6920 1.6 3.3 48 5.6 5.6 100 SPRING CREEK DIVIDE 9000 4.2 5.8 72 5.1 6.5 78 THUMB DIVIDE 7980 2.8 3.4 82 6.1 4.8 127 TOGWOTEE PASS 9580 5.7 6.3 90 5.9 6.5 91 TWO OCEAN PLATEAU 9240 7.6 7.4 103 6.0 7.3 82 WILLOW CREEK 8380 4.0 6.6 61 7.8 8.3 94 ----- ----- Basin wide percent of average 63 81 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 5.6 6.2 90 4.7 5.2 90 BLACK BEAR 8170 7.9 8.4 94 9.1 9.3 98 CANYON 7870 2.9 2.8 104 4.5 4.3 105 FISHER CREEK 9100 8.4 8.0 105 8.6 8.6 100 MADISON PLATEAU 7750 5.0 5.3 94 8.1 6.3 129 NORTHEAST ENTRANCE 7350 1.0 2.0 50 3.7 3.6 103 PARKER PEAK 9400 6.6 6.0 110 4.9 4.9 100 SYLVAN LAKE 8420 3.4 5.7 60 5.4 6.2 87 THUMB DIVIDE 7980 2.8 3.4 82 6.1 4.8 127 TWO OCEAN PLATEAU 9240 7.6 7.4 103 6.0 7.3 82 WHISKEY CREEK 6800 2.2 3.2 69 5.1 5.2 98 WHITE MILL 8700 6.2 5.7 109 5.9 6.8 87 WOLVERINE 7650 1.4 2.4 58 2.9 4.0 72 ----- ----- Basin wide percent of average 92 98 WIND RIVER BURROUGHS CREEK 8750 3.3 3.3 100 2.8 4.3 65 COLD SPRINGS 9630 2.5 2.8 89 3.3 3.9 85 DEER PARK 9700 5.2 4.1 127 6.5 6.4 102 HOBBS PARK 10100 5.6 4.8 117 5.4 4.2 129 LITTLE WARM 9370 2.1 2.9 72 2.8 4.1 68 SOUTH PASS 9040 4.4 4.4 100 5.4 5.3 102 ST. LAWRENCE ALT 8620 2.2 2.3 96 3.9 3.2 122 TOGWOTEE PASS 9580 5.7 6.3 90 5.9 6.5 91 TOWNSEND CREEK 8700 3.2 2.6 123 5.1 4.1 124 ----- ----- Basin wide percent of average 102 98 BIGHORN BASIN BALD MTN. 9380 4.5 5.3 85 3.7 4.8 77 BEAR TRAP MEADOW 8200 1.4 1.5 93 2.3 3.2 72 BLACKWATER 9780 6.9 6.9 100 6.0 6.4 94 BONE SPRINGS DIV 9350 4.0 4.9 82 3.7 4.5 82 EVENING STAR 9200 6.8 7.4 92 8.1 7.3 111 GRAVE SPRINGS 8550 2.9 2.4 121 4.0 3.4 118 KIRWIN 9550 3.4 3.8 89 2.9 3.8 76 MARQUETTE 8760 3.0 3.4 88 3.6 3.9 92 MIDDLE POWDER 7760 3.1 3.1 100 3.8 4.6 83 OWL CREEK 8975 2.4 1.7 141 2.1 2.1 100 POWDER RIVER PASS 9480 2.4 2.9 83 2.8 3.8 74 SHELL CREEK 9580 4.3 4.7 91 3.7 4.1 90 SYLVAN LAKE 8420 3.4 5.7 60 5.4 6.2 87 SYLVAN ROAD 7120 1.9 3.0 63 4.8 5.9 81 TIMBER CREEK 7950 1.0 2.1 48 2.6 2.8 93 YOUNTS PEAK 8350 3.7 4.1 90 3.0 4.6 65 ----- ----- Basin wide percent of average 88 88 SHOSHONE RIVER BLACKWATER 9780 6.9 6.9 100 6.0 6.4 94 EVENING STAR 9200 6.8 7.4 92 8.1 7.3 111 KIRWIN 9550 3.4 3.8 89 2.9 3.8 76 MARQUETTE 8760 3.0 3.4 88 3.6 3.9 92 SYLVAN LAKE 8420 3.4 5.7 60 5.4 6.2 87 SYLVAN ROAD 7120 1.9 3.0 63 4.8 5.9 81 YOUNTS PEAK 8350 3.7 4.1 90 3.0 4.6 65 ----- ----- Basin wide percent of average 85 89 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.4 1.5 93 2.3 3.2 72 BIG GOOSE 7990 2.3 2.0 115 3.9 2.9 134 BONE SPRINGS DIV 9350 4.0 4.9 82 3.7 4.5 82 BURGESS JUNCTION 7880 3.5 3.2 109 4.3 3.9 110 CLOUD PEAK RESERVOIR 9860 4.2 3.4 124 4.3 4.6 93 DOME LAKE 8880 2.8 3.8 74 4.1 4.5 91 GRAVE SPRINGS 8550 2.9 2.4 121 4.0 3.4 118 HANSEN SAWMILL 8360 1.4 1.8 78 2.3 3.0 77 MIDDLE POWDER 7760 3.1 3.1 100 3.8 4.6 83 POWDER RIVER PASS 9480 2.4 2.9 83 2.8 3.8 74 SUCKER CREEK 8880 4.1 2.8 146 4.9 4.2 117 TIE CREEK 6870 .0 1.1 0 4.4 3.5 126 ----- ----- Basin wide percent of average 98 97 BELLE FOURCHE BLIND PARK 6890 1.6 1.7 94 4.4 4.2 105 COLE CANYON 5910 .3 1.9 16 4.2 2.8 150 NORTH RAPID CREEK 6130 2.0 1.5 133 4.7 3.6 131 ----- ----- Basin wide percent of average 76 125 UPPER N. PLATTE RIVER COLUMBINE 9160 2.4 4.2 57 5.6 5.6 100 DIVIDE PEAK 8880 4.7 4.4 107 7.7 5.6 138 ELK RIVER 8700 1.7 2.6 65 5.0 4.7 106 JOE WRIGHT 10120 6.6 5.8 114 6.7 7.0 96 NORTH FRENCH CREEK 10130 9.8 7.0 140 10.1 6.8 149 OLD BATTLE 10000 9.9 8.0 124 10.5 8.2 128 SAGE CREEK BASIN 7850 2.3 2.6 88 4.4 3.2 138 SOUTH BRUSH CREEK 8440 3.1 2.5 124 6.7 4.8 140 TOWER 10500 9.5 11.1 86 9.6 9.5 101 WEBBER SPRINGS 9250 5.0 5.8 86 8.3 6.9 120 WILLOW CREEK PASS 9540 2.6 3.2 81 3.8 4.0 95 ----- ----- Basin wide percent of average 101 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 5.9 5.3 111 7.0 5.6 125 CASPER MTN. 7900 3.3 4.2 79 4.7 4.8 98 DEADMAN HILL 10220 -M 4.6 * 6.3 4.8 131 DEER PARK 9700 5.2 4.1 127 6.5 6.4 102 LAPRELE CREEK 8375 2.2 2.8 79 4.6 3.9 118 RENO HILL 8400 4.3 3.8 113 5.8 4.7 123 ROACH 9700 4.8 3.8 126 6.8 4.8 142 SAND LAKE 10050 9.7 8.2 118 10.2 6.5 157 SOUTH PASS 9040 4.4 4.4 100 5.4 5.3 102 WINDY PEAK 7900 1.8 2.0 90 4.3 3.4 126 ----- ----- Basin wide percent of average 108 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.5 1.6 94 3.9 4.0 98 DIVIDE PEAK 8880 4.7 4.4 107 7.7 5.6 138 OLD BATTLE 10000 9.9 8.0 124 10.5 8.2 128 SANDSTONE RS 8150 .3 2.0 15 4.3 5.0 86 WHISKEY PARK 8950 4.2 5.4 78 8.3 6.9 120 ----- ----- Basin wide percent of average 96 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.2 3.5 91 3.5 3.9 90 BLIND BULL SUM 8650 3.6 6.0 60 3.2 5.6 57 EAST RIM DIVIDE 7930 .4 2.7 15 2.3 3.1 74 ELKHART PARK G.S. 9400 2.5 3.0 83 3.1 4.0 78 GROS VENTRE SUMMIT 8750 2.4 3.4 71 2.6 3.9 67 GUNSIGHT PASS 9820 2.2 -M * 3.5 -M * KENDALL R.S. 7740 .4 2.7 15 2.3 3.7 62 LOOMIS PARK 8240 .7 3.7 19 2.8 4.4 64 NEW FORK LAKE 8340 .4 2.3 17 2.2 3.5 63 SNIDER BASIN 8060 1.6 3.1 52 3.2 4.0 80 SPRING CREEK DIVIDE 9000 4.2 5.8 72 5.1 6.5 78 TRIPLE PEAK 8500 4.7 5.3 89 5.7 5.8 98 ----- ----- Basin wide percent of average 58 74 LOWER GREEN RIVER HAMS FORK 7840 .5 2.1 24 3.4 3.2 106 HEWINTA 9519 1.2 1.9 63 3.5 4.5 78 HICKERSON PARK 9145 1.4 1.3 108 3.9 3.0 130 HOLE-IN-ROCK 9150 1.8 1.3 138 4.1 2.8 146 INDIAN CREEK 9425 5.1 5.7 89 5.7 6.2 92 KELLEY R.S. 8180 2.6 3.6 72 4.4 5.1 86 STEEL CREEK PARK 10200 3.1 3.6 86 4.4 4.7 94 ----- ----- Basin wide percent of average 81 100 UPPER BEAR RIVER BUG LAKE 7950 .7 3.5 20 4.6 5.1 90 HAYDEN FORK 9212 1.6 2.6 62 4.5 5.5 82 KELLEY R.S. 8180 2.6 3.6 72 4.4 5.1 86 LILY LAKE 9156 2.3 2.5 92 3.8 5.1 75 MONTE CRISTO 8960 2.9 4.5 64 5.2 6.4 81 SALT RIVER SUMMIT 7760 .7 2.1 33 2.9 4.4 66 TRIAL LAKE 9992 3.1 4.9 63 3.6 6.0 60 ----- ----- Basin wide percent of average 59 77 ----------------------------------------------------------------------------- -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.