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 24 , 2002 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.7 3.2 116 4.2 5.2 81 COTTONWOOD CREEK 7600 5.3 3.7 143 6.5 6.9 94 GRANITE CREEK 6770 3.4 2.6 131 4.3 4.6 93 GRASSY LAKE 7265 5.0 6.0 83 6.3 8.2 77 GROS VENTRE SUMMIT 8775 3.1 3.2 97 3.1 3.7 84 LEWIS LAKE DIVIDE 7860 4.6 6.0 77 5.9 8.4 70 PHILLIPS BENCH 8200 4.8 5.1 94 5.8 6.3 92 SALT RIVER SUMMIT 7600 2.2 2.0 110 3.6 4.3 84 SNAKE RIVER STATION 6920 3.3 3.1 106 4.7 5.4 87 SPRING CREEK DIVIDE 9000 4.9 5.4 91 5.2 6.2 84 THUMB DIVIDE 7980 3.5 3.2 109 4.6 4.6 100 TOGWOTEE PASS 9580 5.6 5.9 95 5.4 6.3 86 TWO OCEAN PLATEAU 9360 8.0 7.0 114 5.4 7.0 77 WILLOW CREEK 8450 5.5 6.2 89 8.0 8.1 99 ----- ----- Basin wide percent of average 100 86 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 5.0 6.0 83 3.8 5.0 76 BLACK BEAR 8170 5.8 7.8 74 5.8 8.9 65 CANYON 8090 2.7 2.5 108 3.4 4.1 83 FISHER CREEK 9100 4.8 7.4 65 4.6 8.3 55 MADISON PLATEAU 7750 3.1 4.9 63 3.8 6.1 62 NORTHEAST ENTRANCE 7350 1.4 1.9 74 2.5 3.4 74 PARKER PEAK 9400 -M 5.7 * 5.6 4.8 117 SYLVAN LAKE 8420 5.0 5.3 94 6.7 6.1 110 THUMB DIVIDE 7980 3.5 3.2 109 4.6 4.6 100 TWO OCEAN PLATEAU 9360 8.0 7.0 114 5.4 7.0 77 WHISKEY CREEK 6800 2.2 3.0 73 3.0 5.1 59 WHITE MILL 8700 4.3 5.4 80 3.7 6.6 56 WOLVERINE 7650 -M 2.3 * 3.4 3.9 87 ----- ----- Basin wide percent of average 84 76 WIND RIVER BURROUGHS CREEK 8750 4.7 3.1 152 5.3 4.2 126 COLD SPRINGS 9630 2.2 2.7 81 3.4 3.7 92 DEER PARK 9700 4.0 4.2 95 4.5 6.0 75 HOBBS PARK 10100 4.3 4.6 93 3.9 4.0 98 LITTLE WARM 9370 2.7 2.9 93 3.2 3.9 82 SOUTH PASS 9040 3.4 4.1 83 4.3 5.1 84 ST. LAWRENCE ALT 8620 2.0 2.3 87 3.6 3.1 116 TOGWOTEE PASS 9580 5.6 5.9 95 5.4 6.3 86 TOWNSEND CREEK 8700 2.3 2.6 88 3.9 4.0 98 ----- ----- Basin wide percent of average 96 93 BIGHORN BASIN BALD MTN. 9380 5.5 5.3 104 5.0 4.6 109 BEAR TRAP MEADOW 8200 1.1 1.4 79 1.9 3.0 63 BLACKWATER 9780 5.5 6.6 83 5.1 6.2 82 BONE SPRINGS DIV 9350 4.7 4.8 98 4.0 4.4 91 EVENING STAR 9200 4.7 7.1 66 5.7 7.0 81 GRAVE SPRINGS 8550 .9 2.4 38 2.1 3.3 64 KIRWIN 9550 2.9 3.7 78 2.9 3.6 81 MARQUETTE 8760 2.8 3.4 82 -M 3.7 * MIDDLE POWDER 7760 1.4 3.1 45 2.0 4.4 45 OWL CREEK 8975 2.6 1.7 153 2.5 2.0 125 POWDER RIVER PASS 9480 2.9 2.9 100 3.7 3.6 103 SHELL CREEK 9580 4.7 4.6 102 4.5 3.9 115 SYLVAN LAKE 8420 5.0 5.3 94 6.7 6.1 110 SYLVAN ROAD 7120 -M 2.7 * 5.0 5.6 89 TIMBER CREEK 7950 1.7 2.1 81 2.9 2.7 107 YOUNTS PEAK 8350 3.9 3.9 100 3.8 4.4 86 ----- ----- Basin wide percent of average 86 89 SHOSHONE RIVER BLACKWATER 9780 5.5 6.6 83 5.1 6.2 82 EVENING STAR 9200 4.7 7.1 66 5.7 7.0 81 KIRWIN 9550 2.9 3.7 78 2.9 3.6 81 MARQUETTE 8760 2.8 3.4 82 -M 3.7 * SYLVAN LAKE 8420 5.0 5.3 94 6.7 6.1 110 SYLVAN ROAD 7120 -M 2.7 * 5.0 5.6 89 YOUNTS PEAK 8350 3.9 3.9 100 3.8 4.4 86 ----- ----- Basin wide percent of average 83 89 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.1 1.4 79 1.9 3.0 63 BIG GOOSE 7990 -M 2.0 * 3.7 2.8 132 BONE SPRINGS DIV 9350 4.7 4.8 98 4.0 4.4 91 BURGESS JUNCTION 7880 2.7 3.1 87 3.6 3.8 95 CLOUD PEAK RESERVOIR 9860 3.3 3.3 100 3.3 4.4 75 DOME LAKE 8880 3.9 3.7 105 4.3 4.4 98 GRAVE SPRINGS 8550 .9 2.4 38 2.1 3.3 64 HANSEN SAWMILL 8360 2.9 1.7 171 3.5 2.9 121 MIDDLE POWDER 7760 1.4 3.1 45 2.0 4.4 45 POWDER RIVER PASS 9480 2.9 2.9 100 3.7 3.6 103 SUCKER CREEK 8880 3.2 2.8 114 3.9 4.0 98 TIE CREEK 6870 -M 1.2 * -M 3.4 * ----- ----- Basin wide percent of average 92 88 BELLE FOURCHE BLIND PARK 6890 1.5 1.8 83 2.7 4.1 66 COLE CANYON 5910 .2 -M * 1.6 -M * NORTH RAPID CREEK 6130 1.0 1.4 71 2.2 3.5 63 ----- ----- Basin wide percent of average 78 64 UPPER N. PLATTE RIVER COLUMBINE 9400 4.3 4.0 108 6.5 5.5 118 DIVIDE PEAK 8800 3.2 4.3 74 5.4 5.4 100 ELK RIVER 8700 2.8 2.4 117 5.0 4.5 111 JOE WRIGHT 10120 4.7 5.5 85 6.7 6.7 100 NORTH FRENCH CREEK 10100 5.2 6.8 76 6.3 6.6 95 OLD BATTLE 10000 5.6 7.6 74 8.4 8.0 105 SAGE CREEK BASIN 7850 1.9 2.5 76 4.1 -M * SOUTH BRUSH CREEK 8400 2.6 2.4 108 4.6 4.6 100 TOWER 10500 10.7 10.5 102 11.6 9.1 127 WEBBER SPRINGS 9200 4.0 5.5 73 5.7 6.7 85 WILLOW CREEK PASS 9540 5.1 3.1 165 4.8 3.9 123 ----- ----- Basin wide percent of average 92 107 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.4 5.0 68 5.9 5.4 109 CASPER MTN. 7900 2.1 3.9 54 2.7 4.6 59 DEADMAN HILL 10220 2.7 4.4 61 4.2 4.7 89 DEER PARK 9700 4.0 4.2 95 4.5 6.0 75 LAPRELE CREEK 8320 1.4 2.7 52 2.6 3.8 68 RENO HILL 8400 2.2 3.7 59 3.0 4.5 67 ROACH 9700 4.0 3.6 111 4.5 4.5 100 SAND LAKE 10080 4.3 7.8 55 5.6 6.3 89 SOUTH PASS 9040 3.4 4.1 83 4.3 5.1 84 WINDY PEAK 7840 2.0 1.9 105 2.9 3.3 88 ----- ----- Basin wide percent of average 71 83 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.7 1.6 106 4.6 3.8 121 DIVIDE PEAK 8800 3.2 4.3 74 5.4 5.4 100 OLD BATTLE 10000 5.6 7.6 74 8.4 8.0 105 SANDSTONE RS 8150 1.6 1.9 84 5.2 4.8 108 WHISKEY PARK 8950 4.1 5.0 82 6.3 6.7 94 ----- ----- Basin wide percent of average 79 104 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.1 3.3 94 3.0 3.7 81 BLIND BULL SUM 8650 3.9 5.7 68 3.9 5.4 72 EAST RIM DIVIDE 7930 1.9 2.5 76 2.9 3.0 97 ELKHART PARK G.S. 9400 3.6 2.8 129 3.4 3.8 89 GROS VENTRE SUMMIT 8775 3.1 3.2 97 3.1 3.7 84 KENDALL R.S. 7740 2.6 2.5 104 3.0 3.5 86 LOOMIS PARK 8240 3.5 3.5 100 4.0 4.2 95 NEW FORK LAKE 8340 2.4 2.2 109 2.4 3.3 73 SNIDER BASIN 8250 2.5 2.9 86 3.2 3.8 84 SPRING CREEK DIVIDE 9000 4.9 5.4 91 5.2 6.2 84 TRIPLE PEAK 8500 4.8 5.0 96 6.4 5.5 116 ----- ----- Basin wide percent of average 93 88 LOWER GREEN RIVER HAMS FORK 7840 2.8 1.9 147 3.7 3.0 123 HEWINTA 9500 1.9 1.8 106 3.5 4.3 81 HICKERSON PARK 9150 .2 1.2 17 2.8 2.9 97 HOLE-IN-ROCK 9150 1.8 1.3 138 3.1 2.7 115 INDIAN CREEK 9425 4.9 5.4 91 4.7 6.0 78 KELLEY R.S. 8180 2.8 3.4 82 3.6 4.9 73 STEEL CREEK PARK 10100 2.1 3.4 62 3.4 4.5 76 ----- ----- Basin wide percent of average 90 88 UPPER BEAR RIVER BUG LAKE 7950 4.0 3.4 118 4.8 4.9 98 HAYDEN FORK 9400 3.1 2.5 124 5.5 5.3 104 KELLEY R.S. 8180 2.8 3.4 82 3.6 4.9 73 LILY LAKE 9050 2.5 2.4 104 4.4 5.0 88 MONTE CRISTO 8960 4.9 4.2 117 6.2 6.3 98 SALT RIVER SUMMIT 7600 2.2 2.0 110 3.6 4.3 84 TRIAL LAKE 9960 3.6 4.7 77 5.8 5.8 100 ----- ----- Basin wide percent of average 102 93 ----------------------------------------------------------------------------- -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.