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 WEDNESDAY: MARCH 6 , 2002 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.9 16.5 66 15.5 19.0 82 COTTONWOOD CREEK 7600 15.1 19.5 77 17.8 23.7 75 GRANITE CREEK 6770 -M 16.7 * -M 17.8 * GRASSY LAKE 7265 22.5 30.7 73 26.8 31.7 85 GROS VENTRE SUMMIT 8775 -M 12.0 * -M 11.1 * LEWIS LAKE DIVIDE 7860 22.2 30.8 72 23.9 32.2 74 PHILLIPS BENCH 8200 18.3 24.8 74 20.1 25.3 79 SALT RIVER SUMMIT 7600 9.0 12.6 71 10.8 16.2 67 SNAKE RIVER STATION 6920 -M 17.2 * -M 19.9 * SPRING CREEK DIVIDE 9000 17.3 23.0 75 17.7 23.0 77 THUMB DIVIDE 7980 11.2 16.1 70 13.2 16.4 80 TOGWOTEE PASS 9580 16.6 21.4 78 15.6 21.2 74 TWO OCEAN PLATEAU 9360 21.0 24.1 87 18.5 24.0 77 WILLOW CREEK 8450 18.0 26.3 68 24.2 27.7 87 ----- ----- Basin wide percent of average 74 78 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 15.2 20.5 74 14.3 18.1 79 BLACK BEAR 8170 -M 34.1 * -M 33.8 * CANYON 8090 11.1 11.8 94 12.4 13.9 89 FISHER CREEK 9100 23.7 30.6 77 22.7 27.3 83 MADISON PLATEAU 7750 17.7 21.7 82 21.9 22.1 99 NORTHEAST ENTRANCE 7350 5.8 10.0 58 7.8 10.9 72 PARKER PEAK 9400 14.8 18.8 79 12.5 15.6 80 SYLVAN LAKE 8420 14.5 19.4 75 17.2 20.5 84 THUMB DIVIDE 7980 11.2 16.1 70 13.2 16.4 80 TWO OCEAN PLATEAU 9360 21.0 24.1 87 18.5 24.0 77 WHISKEY CREEK 6800 12.4 14.9 83 17.2 17.9 96 WHITE MILL 8700 15.5 21.0 74 14.1 21.7 65 WOLVERINE 7650 6.1 10.8 56 8.2 11.5 71 ----- ----- Basin wide percent of average 77 82 WIND RIVER BURROUGHS CREEK 8750 10.2 12.9 79 10.9 14.4 76 COLD SPRINGS 9630 3.7 7.5 49 4.7 8.9 53 DEER PARK 9700 9.6 14.7 65 12.5 -M * HOBBS PARK 10100 7.7 12.3 63 7.0 10.6 66 LITTLE WARM 9370 7.7 9.9 78 8.7 10.8 81 SOUTH PASS 9040 9.3 14.5 64 9.7 15.1 64 ST. LAWRENCE ALT 8620 3.1 6.2 50 4.2 7.2 58 TOGWOTEE PASS 9580 16.6 21.4 78 15.6 21.2 74 TOWNSEND CREEK 8700 4.3 7.2 60 4.8 9.7 49 ----- ----- Basin wide percent of average 68 67 BIGHORN BASIN BALD MTN. 9380 13.3 16.6 80 11.7 14.6 80 BEAR TRAP MEADOW 8200 4.8 4.5 107 6.6 7.0 94 BLACKWATER 9780 14.5 21.1 69 13.5 18.2 74 BONE SPRINGS DIV 9350 10.2 13.6 75 10.2 12.9 79 EVENING STAR 9200 18.0 25.8 70 19.2 23.4 82 GRAVE SPRINGS 8550 5.6 7.6 74 7.4 10.4 71 KIRWIN 9550 6.7 9.5 71 7.3 9.7 75 MARQUETTE 8760 4.6 7.2 64 4.7 7.6 62 MIDDLE POWDER 7760 5.6 9.4 60 6.9 9.9 70 OWL CREEK 8975 2.7 4.3 63 3.1 4.7 66 POWDER RIVER PASS 9480 7.8 9.1 86 9.4 10.4 90 SHELL CREEK 9580 10.8 12.2 89 10.0 11.3 88 SYLVAN LAKE 8420 14.5 19.4 75 17.2 20.5 84 SYLVAN ROAD 7120 7.9 11.7 68 12.9 17.8 72 TIMBER CREEK 7950 1.7 4.5 38 3.0 6.4 47 YOUNTS PEAK 8350 10.0 15.0 67 10.8 14.1 77 ----- ----- Basin wide percent of average 72 77 SHOSHONE RIVER BLACKWATER 9780 14.5 21.1 69 13.5 18.2 74 EVENING STAR 9200 18.0 25.8 70 19.2 23.4 82 KIRWIN 9550 6.7 9.5 71 7.3 9.7 75 MARQUETTE 8760 4.6 7.2 64 4.7 7.6 62 SYLVAN LAKE 8420 14.5 19.4 75 17.2 20.5 84 SYLVAN ROAD 7120 7.9 11.7 68 12.9 17.8 72 YOUNTS PEAK 8350 10.0 15.0 67 10.8 14.1 77 ----- ----- Basin wide percent of average 69 77 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.8 4.5 107 6.6 7.0 94 BIG GOOSE 7990 5.9 8.1 73 8.0 7.6 105 BONE SPRINGS DIV 9350 10.2 13.6 75 10.2 12.9 79 BURGESS JUNCTION 7880 6.5 9.4 69 7.7 9.8 79 CLOUD PEAK RESERVOIR 9860 9.9 10.5 94 9.3 11.1 84 DOME LAKE 8880 7.8 9.9 79 9.6 10.9 88 GRAVE SPRINGS 8550 5.6 7.6 74 7.4 10.4 71 HANSEN SAWMILL 8360 3.7 5.4 69 5.6 6.9 81 MIDDLE POWDER 7760 5.6 9.4 60 6.9 9.9 70 POWDER RIVER PASS 9480 7.8 9.1 86 9.4 10.4 90 SUCKER CREEK 8880 7.9 9.5 83 10.4 11.1 94 TIE CREEK 6870 3.1 5.2 60 7.4 7.7 96 ----- ----- Basin wide percent of average 77 85 BELLE FOURCHE BLIND PARK 6890 4.3 7.5 57 7.2 8.8 82 COLE CANYON 5910 3.5 5.3 66 4.3 -M * NORTH RAPID CREEK 6130 4.7 7.0 67 5.6 7.1 79 ----- ----- Basin wide percent of average 63 81 UPPER N. PLATTE RIVER COLUMBINE 9400 15.4 22.6 68 15.5 21.4 72 DIVIDE PEAK 8800 11.2 16.3 69 12.9 17.5 74 ELK RIVER 8700 11.7 16.7 70 12.4 16.6 75 JOE WRIGHT 10120 -M 17.9 * -M 20.8 * NORTH FRENCH CREEK 10100 14.0 23.7 59 16.6 20.8 80 OLD BATTLE 10000 16.5 27.3 60 19.7 29.2 67 SAGE CREEK BASIN 7850 7.7 -M * 9.1 -M * SOUTH BRUSH CREEK 8400 8.3 10.6 78 9.5 13.7 69 TOWER 10500 -M 38.9 * -M 32.8 * WEBBER SPRINGS 9200 13.1 22.4 58 15.1 22.7 67 WILLOW CREEK PASS 9540 6.8 10.0 68 7.9 10.7 74 ----- ----- Basin wide percent of average 65 72 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 10.6 19.7 54 9.4 18.1 52 CASPER MTN. 7900 7.7 11.7 66 8.3 11.5 72 DEADMAN HILL 10220 8.1 13.5 60 9.9 13.8 72 DEER PARK 9700 9.6 14.7 65 12.5 -M * LAPRELE CREEK 8320 5.2 9.3 56 7.9 10.4 76 RENO HILL 8400 7.4 11.0 67 8.3 11.9 70 ROACH 9700 7.1 14.4 49 9.2 15.3 60 SAND LAKE 10080 9.9 26.4 38 16.0 20.0 80 SOUTH PASS 9040 9.3 14.5 64 9.7 15.1 64 WINDY PEAK 7840 3.7 6.4 58 6.8 8.7 78 ----- ----- Basin wide percent of average 56 69 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.2 10.2 90 7.8 12.8 61 DIVIDE PEAK 8800 11.2 16.3 69 12.9 17.5 74 OLD BATTLE 10000 16.5 27.3 60 19.7 29.2 67 SANDSTONE RS 8150 6.6 13.1 50 11.8 16.0 74 WHISKEY PARK 8950 15.4 25.1 61 18.0 24.2 74 ----- ----- Basin wide percent of average 64 70 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.0 12.5 80 8.7 11.6 75 BLIND BULL SUM 8650 16.9 24.0 70 14.0 19.5 72 EAST RIM DIVIDE 7930 8.4 11.4 74 8.4 10.5 80 ELKHART PARK G.S. 9400 -M 11.5 * -M 11.3 * GROS VENTRE SUMMIT 8775 -M 12.0 * -M 11.1 * KENDALL R.S. 7740 8.2 12.9 64 10.1 12.8 79 LOOMIS PARK 8240 12.4 15.1 82 12.1 15.2 80 NEW FORK LAKE 8340 7.0 9.9 71 7.3 9.9 74 SNIDER BASIN 8250 8.5 12.8 66 10.6 14.0 76 SPRING CREEK DIVIDE 9000 17.3 23.0 75 17.7 23.0 77 TRIPLE PEAK 8500 16.0 21.7 74 18.1 21.3 85 ----- ----- Basin wide percent of average 73 78 LOWER GREEN RIVER HAMS FORK 7840 9.2 11.4 81 7.3 10.6 69 HEWINTA 9500 6.4 9.6 67 10.1 12.0 84 HICKERSON PARK 9150 4.1 6.0 68 6.3 6.5 97 HOLE-IN-ROCK 9150 4.2 6.0 70 6.0 6.0 100 INDIAN CREEK 9425 17.2 23.3 74 14.9 21.7 69 KELLEY R.S. 8180 10.6 14.6 73 12.6 17.6 72 STEEL CREEK PARK 10100 9.2 13.2 70 9.8 13.3 74 ----- ----- Basin wide percent of average 72 76 UPPER BEAR RIVER BUG LAKE 7950 14.7 17.8 83 13.3 16.5 81 HAYDEN FORK 9400 10.3 13.8 75 14.6 17.6 83 KELLEY R.S. 8180 10.6 14.6 73 12.6 17.6 72 LILY LAKE 9050 8.1 11.2 72 11.8 14.7 80 MONTE CRISTO 8960 16.6 25.7 65 17.8 21.7 82 SALT RIVER SUMMIT 7600 9.0 12.6 71 10.8 16.2 67 TRIAL LAKE 9960 13.0 21.5 60 15.6 21.1 74 ----- ----- Basin wide percent of average 70 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 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.