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 MONDAY: MARCH 26 , 2012 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 19.1 18.0 106 23.5 21.1 111 BLACK BEAR 8170 38.6 38.4 101 38.8 39.6 98 BLIND BULL SUM 8650 22.0 27.6 80 16.9 21.8 78 COTTONWOOD CREEK 7670 17.7 23.5 75 23.8 26.8 89 EAST RIM DIVIDE 7930 10.0 12.9 78 11.4 11.8 97 GRAND TARGHEE 9260 36.1 -M * 28.9 -M * GRANITE CREEK 6770 14.6 18.7 78 16.4 19.7 83 GRASSY LAKE 7265 32.0 35.1 91 36.1 35.4 102 GROS VENTRE SUMMIT 8750 9.4 14.0 67 10.4 12.6 83 GUNSIGHT PASS 9820 12.1 -M * 13.7 -M * LEWIS LAKE DIVIDE 7850 30.8 34.9 88 33.2 36.2 92 PHILLIPS BENCH 8200 23.7 28.4 83 25.0 28.5 88 SALT RIVER SUMMIT 7760 10.0 14.2 70 11.4 18.3 62 SNAKE RIVER STATION 6920 16.0 19.1 84 24.0 21.9 110 SPRING CREEK DIVIDE 9000 22.3 26.1 85 22.0 25.9 85 THUMB DIVIDE 7980 16.5 18.8 88 17.4 18.5 94 TOGWOTEE PASS 9580 21.2 24.3 87 23.3 24.0 97 TWO OCEAN PLATEAU 9240 31.8 27.4 116 27.0 27.2 99 WILLOW CREEK 8380 23.6 29.8 79 30.4 31.5 97 YOUNTS PEAK 8350 15.9 16.8 95 15.3 15.8 97 ----- ----- Basin wide percent of average 88 93 MADISON-GALLATIN BLACK BEAR 8170 38.6 38.4 101 38.8 39.6 98 CANYON 7870 12.1 13.5 90 14.2 15.1 94 MADISON PLATEAU 7750 24.2 24.6 98 28.4 26.1 109 WEST YELLOWSTONE 6700 10.4 12.7 82 16.3 12.8 127 WHISKEY CREEK 6800 15.9 16.8 95 21.2 20.5 103 ----- ----- Basin wide percent of average 95 104 YELLOWSTONE BEARTOOTH LAKE 9360 24.1 23.0 105 23.3 19.7 118 BURNT MTN 5880 2.4 6.0 40 11.3 14.4 78 CANYON 7870 12.1 13.5 90 14.2 15.1 94 COLE CREEK 7850 14.2 15.1 94 11.3 15.7 72 EVENING STAR 9200 28.4 29.1 98 30.8 24.7 125 FISHER CREEK 9100 34.1 34.2 100 32.5 35.7 91 NORTHEAST ENTRANCE 7350 9.2 11.2 82 12.5 12.4 101 PARKER PEAK 9400 22.8 21.2 108 22.2 15.9 140 SYLVAN LAKE 8420 17.9 22.1 81 23.9 20.5 117 THUMB DIVIDE 7980 16.5 18.8 88 17.4 18.5 94 TWO OCEAN PLATEAU 9240 31.8 27.4 116 27.0 27.2 99 WHITE MILL 8700 21.8 23.8 92 22.6 26.5 85 WOLVERINE 7650 10.9 11.5 95 12.8 12.6 102 ----- ----- Basin wide percent of average 96 101 WIND RIVER BURROUGHS CREEK 8750 13.8 14.4 96 14.3 15.9 90 CASTLE CREEK 8400 7.0 -M * 8.7 -M * COLD SPRINGS 9630 6.8 8.6 79 9.2 10.1 91 DEER PARK 9700 10.6 16.5 64 16.6 21.2 78 HOBBS PARK 10100 13.7 14.2 96 12.9 12.2 106 KIRWIN 9550 12.0 10.9 110 14.0 10.8 130 LITTLE WARM 9370 8.3 11.6 72 11.1 12.9 86 OWL CREEK 8975 4.0 5.3 75 5.6 5.5 102 SOUTH PASS 9040 12.8 16.3 79 13.2 17.8 74 ST. LAWRENCE ALT 8620 2.1 7.0 30 7.3 8.4 87 TOGWOTEE PASS 9580 21.2 24.3 87 23.3 24.0 97 TOWNSEND CREEK 8700 7.4 8.3 89 11.0 11.0 100 ----- ----- Basin wide percent of average 82 92 BIGHORN BASIN BALD MTN. 9380 20.4 19.0 107 15.3 16.8 91 BEAR TRAP MEADOW 8200 7.3 5.2 140 8.8 7.8 113 BONE SPRINGS DIV 9350 17.7 15.6 113 15.4 14.0 110 GRAVE SPRINGS 8550 8.2 8.9 92 10.1 9.3 109 KIRWIN 9550 12.0 10.9 110 14.0 10.8 130 MARQUETTE 8760 8.9 -M * 11.6 9.2 126 MIDDLE POWDER 7760 10.3 11.2 92 10.6 11.8 90 OWL CREEK 8975 4.0 5.3 75 5.6 5.5 102 POWDER RIVER PASS 9480 11.3 10.5 108 15.0 11.8 127 SHELL CREEK 9580 17.9 14.2 126 15.6 12.8 122 TIMBER CREEK 7950 2.7 5.4 50 8.7 7.0 124 ----- ----- Basin wide percent of average 105 112 SHOSHONE RIVER BLACKWATER 9780 24.0 23.9 100 23.8 20.0 119 EVENING STAR 9200 28.4 29.1 98 30.8 24.7 125 MARQUETTE 8760 8.9 -M * 11.6 9.2 126 SYLVAN ROAD 7120 11.1 12.6 88 17.6 17.4 101 YOUNTS PEAK 8350 15.9 16.8 95 15.3 15.8 97 ----- ----- Basin wide percent of average 96 114 POWDER RIVER BEAR TRAP MEADOW 8200 7.3 5.2 140 8.8 7.8 113 CLOUD PEAK RESERVOIR 9860 14.6 12.7 115 15.0 12.2 123 GRAVE SPRINGS 8550 8.2 8.9 92 10.1 9.3 109 HANSEN SAWMILL 8360 4.3 6.3 68 8.5 7.8 109 MIDDLE POWDER 7760 10.3 11.2 92 10.6 11.8 90 POWDER RIVER PASS 9480 11.3 10.5 108 15.0 11.8 127 SOLDIER PARK 8720 11.4 -M * 9.8 -M * ----- ----- Basin wide percent of average 102 112 TONGUE RIVER BIG GOOSE 7990 9.3 9.9 94 13.6 8.1 168 BONE SPRINGS DIV 9350 17.7 15.6 113 15.4 14.0 110 BURGESS JUNCTION 7880 11.7 11.1 105 14.0 11.6 121 DOME LAKE 8880 13.8 11.8 117 14.3 12.5 114 LITTLE GOOSE 8870 9.6 -M * 15.5 -M * SUCKER CREEK 8880 12.9 11.2 115 14.7 12.9 114 TIE CREEK 6870 2.6 5.8 45 13.4 9.4 143 ----- ----- Basin wide percent of average 104 125 BELLE FOURCHE COLE CANYON 5910 3.3 6.7 49 8.1 6.4 127 ----- ----- Basin wide percent of average 49 127 CHEYENNE RIVER BASIN BLIND PARK 6890 2.2 8.6 26 9.9 10.7 93 NORTH RAPID CREEK 6130 3.8 8.0 48 7.9 8.4 94 ----- ----- Basin wide percent of average 36 93 UPPER N. PLATTE ARAPAHOE 4020 -M -M * -M -M * BLACKHALL MTN 9820 21.1 -M * 23.1 -M * COLUMBINE 9160 15.2 24.7 62 19.6 24.5 80 DIVIDE PEAK 8880 13.1 19.3 68 18.6 20.1 93 JOE WRIGHT 10120 12.9 20.6 63 18.5 23.9 77 LAPRELE CREEK 8375 8.4 10.7 79 11.6 12.1 96 NORTH FRENCH CREEK 10130 18.4 28.1 65 19.2 23.9 80 NEVER SUMMER 10280 11.3 19.6 58 10.9 22.7 48 OLD BATTLE 10000 22.8 31.4 73 26.8 33.7 80 RAWAH 9020 5.8 14.5 40 10.9 15.8 69 SAGE CREEK BASIN 7850 8.2 11.2 73 10.1 11.7 86 SAND LAKE 10050 22.9 31.4 73 22.7 23.2 98 SOUTH BRUSH CREEK 8440 5.6 12.7 44 11.6 15.8 73 TOWER 10500 28.7 44.2 65 30.5 37.4 82 WEBBER SPRINGS 9250 15.8 25.9 61 21.0 25.9 81 WILLOW CREEK PASS 9540 -M 11.5 * 9.2 12.4 74 ZIRKEL 9340 20.7 25.4 81 -M 25.3 * ----- ----- Basin wide percent of average 66 80 SWEETWATER DEER PARK 9700 10.6 16.5 64 16.6 21.2 78 LARSEN CREEK 9000 10.0 -M * 13.0 -M * SOUTH PASS 9040 12.8 16.3 79 13.2 17.8 74 ----- ----- Basin wide percent of average 71 76 LOWER N. PLATTE CASPER MTN. 7900 17.5 13.8 127 17.5 13.7 128 LAPRELE CREEK 8375 8.4 10.7 79 11.6 12.1 96 RENO HILL 8400 14.4 13.5 107 17.1 14.2 120 WINDY PEAK 7900 6.2 7.8 79 8.6 10.1 85 ----- ----- Basin wide percent of average 102 109 LARAMIE RIVER BROOKLYN LAKE 10240 16.5 22.8 72 18.6 21.2 88 CINNABAR PARK 9574 14.7 17.7 83 19.2 19.5 98 CROW CREEK 8330 5.7 8.7 66 10.1 9.6 105 DEADMAN HILL 10220 15.7 15.7 100 14.9 16.2 92 RAWAH 9020 5.8 14.5 40 10.9 15.8 69 ROACH 9700 12.5 16.5 76 15.8 18.0 88 ----- ----- Basin wide percent of average 74 89 S. PLATTE BLACK MOUNTAIN 8920 9.7 -M * 12.2 -M * CROW CREEK 8330 5.7 8.7 66 10.1 9.6 105 DEADMAN HILL 10220 15.7 15.7 100 14.9 16.2 92 ----- ----- Basin wide percent of average 88 97 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.1 11.5 62 11.8 15.3 77 DIVIDE PEAK 8880 13.1 19.3 68 18.6 20.1 93 ELK RIVER 8700 11.4 19.0 60 15.3 19.0 81 LITTLE SNAKE RIVER 8915 16.6 -M * 23.9 -M * OLD BATTLE 10000 22.8 31.4 73 26.8 33.7 80 SAGE CREEK BASIN 7850 8.2 11.2 73 10.1 11.7 86 SANDSTONE RS 8150 7.9 15.0 53 12.0 18.3 66 WHISKEY PARK 8950 19.0 29.6 64 23.7 27.9 85 ----- ----- Basin wide percent of average 65 81 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.8 14.2 90 12.8 13.1 98 BLIND BULL SUM 8650 22.0 27.6 80 16.9 21.8 78 EAST RIM DIVIDE 7930 10.0 12.9 78 11.4 11.8 97 ELKHART PARK G.S. 9400 12.9 13.2 98 14.1 13.0 108 GROS VENTRE SUMMIT 8750 9.4 14.0 67 10.4 12.6 83 GUNSIGHT PASS 9820 12.1 -M * 13.7 -M * KENDALL R.S. 7740 13.4 14.6 92 14.8 14.3 103 LOOMIS PARK 8240 13.2 17.2 77 16.2 17.1 95 NEW FORK LAKE 8340 10.7 11.1 96 10.6 11.1 95 POCKET CREEK 9360 9.5 -M * 11.7 -M * SNIDER BASIN 8060 12.0 14.4 83 12.8 15.8 81 SPRING CREEK DIVIDE 9000 22.3 26.1 85 22.0 25.9 85 TRIPLE PEAK 8500 21.3 24.6 87 24.5 24.3 101 ----- ----- Basin wide percent of average 84 92 LOWER GREEN RIVER BLACKS FORK JCT 8870 3.8 -M * 10.3 -M * BUCK PASTURE 9700 .1 -M * 3.6 -M * EF BLACKS FORK GS 9308 7.3 -M * 9.0 -M * HAMS FORK 7840 8.6 12.4 69 9.3 12.0 78 HEWINTA 9519 7.5 11.5 65 12.1 14.0 86 HICKERSON PARK 9145 7.2 7.2 100 12.0 7.6 158 HOLE-IN-ROCK 9150 7.0 6.9 101 11.7 7.1 165 INDIAN CREEK 9425 19.2 27.2 71 17.4 24.8 70 KELLEY R.S. 8180 12.4 16.7 74 14.7 19.9 74 SPIRIT LK 10223 11.1 -M * 17.4 -M * STEEL CREEK PARK 10200 -M 15.3 * 13.9 15.6 89 ----- ----- Basin wide percent of average 76 90 UPPER BEAR RIVER BEAR RIVER RS 8500 3.5 -M * 9.7 -M * BUG LAKE 7950 14.3 20.5 70 15.3 18.8 81 BURTS MILLER RANCH 8000 3.4 -M * 9.8 -M * CHALK CREEK #1 8993 14.8 24.2 61 17.9 24.4 73 HAYDEN FORK 9212 9.0 16.1 56 17.1 20.4 84 KELLEY R.S. 8180 12.4 16.7 74 14.7 19.9 74 LILY LAKE 9156 8.5 12.8 66 11.6 16.9 69 MONTE CRISTO 8960 17.2 29.4 59 18.2 24.9 73 SALT RIVER SUMMIT 7760 10.0 14.2 70 11.4 18.3 62 ----- ----- Basin wide percent of average 64 74 ----------------------------------------------------------------------------- -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.