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: FEBRUARY 17 , 2013
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 12.6 12.8 98 15.4 15.7 98
BLACK BEAR 8170 27.7 27.3 101 26.3 28.2 93
BLIND BULL SUM 8650 13.9 16.3 85 11.0 14.6 75
COTTONWOOD CREEK 7670 13.3 15.0 89 16.8 17.9 94
EAST RIM DIVIDE 7930 7.7 7.4 104 6.5 8.6 76
GRAND TARGHEE 9260 27.0 26.9 100 21.4 23.4 91
GRANITE CREEK 6770 9.8 12.6 78 11.6 15.2 76
GRASSY LAKE 7265 19.5 24.3 80 23.0 27.2 85
GROS VENTRE SUMMIT 8750 8.0 9.0 89 8.5 9.2 92
GUNSIGHT PASS 9820 8.7 9.6 91 9.0 10.1 89
LEWIS LAKE DIVIDE 7850 20.6 23.5 88 24.2 26.4 92
PHILLIPS BENCH 8200 15.1 18.1 83 16.9 20.7 82
SALT RIVER SUMMIT 7760 7.5 9.5 79 10.5 12.2 86
SNAKE RIVER STATION 6920 10.7 13.3 80 15.8 17.3 91
SPRING CREEK DIVIDE 9000 15.5 16.5 94 15.9 17.6 90
THUMB DIVIDE 7980 11.4 10.9 105 12.5 13.5 93
TOGWOTEE PASS 9580 14.6 16.6 88 15.4 17.8 87
TWO OCEAN PLATEAU 9240 20.1 19.7 102 18.0 19.7 91
WILLOW CREEK 8380 17.1 19.8 86 21.2 24.4 87
YOUNTS PEAK 8350 9.5 11.0 86 8.9 11.7 76
----- -----
Basin wide percent 91 88
MADISON-GALLATIN
BLACK BEAR 8170 27.7 27.3 101 26.3 28.2 93
CANYON 7870 7.8 9.5 82 9.1 12.0 76
MADISON PLATEAU 7750 16.2 15.9 102 19.3 19.2 101
WEST YELLOWSTONE 6700 6.7 7.8 86 10.5 10.8 97
WHISKEY CREEK 6800 8.1 10.9 74 14.1 14.9 95
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Basin wide percent 93 93
YELLOWSTONE
BEARTOOTH LAKE 9360 12.4 15.5 80 12.8 14.5 88
BURNT MTN 5880 3.5 3.6 97 7.4 8.8 84
CANYON 7870 7.8 9.5 82 9.1 12.0 76
COLE CREEK 7850 7.3 8.9 82 6.5 8.4 77
EVENING STAR 9200 18.7 17.8 105 21.0 20.4 103
FISHER CREEK 9100 24.9 23.6 106 24.0 23.4 103
NORTHEAST ENTRANCE 7350 5.6 7.5 75 9.0 9.3 97
PARKER PEAK 9400 15.5 14.3 108 15.3 12.8 120
SYLVAN LAKE 8420 12.8 14.4 89 17.1 16.6 103
THUMB DIVIDE 7980 11.4 10.9 105 12.5 13.5 93
TWO OCEAN PLATEAU 9240 20.1 19.7 102 18.0 19.7 91
WHITE MILL 8700 16.3 16.4 99 16.7 17.5 95
WOLVERINE 7650 7.6 8.0 95 7.9 9.2 86
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Basin wide percent 96 95
WIND RIVER
BURROUGHS CREEK 8750 8.3 9.7 86 7.7 11.7 66
CASTLE CREEK 8400 4.6 -M * 6.0 -M *
COLD SPRINGS 9630 5.8 5.2 112 6.8 6.8 100
DEER PARK 9700 8.9 9.9 90 10.1 14.1 72
HOBBS PARK 10100 8.0 8.7 92 7.7 8.7 89
KIRWIN 9550 -M 6.2 * -M 8.1 *
LITTLE WARM 9370 7.1 7.4 96 8.5 9.0 94
OWL CREEK 8975 3.8 3.4 112 3.9 3.9 100
SOUTH PASS 9040 7.3 10.3 71 6.8 12.3 55
ST. LAWRENCE ALT 8620 3.1 4.6 67 5.1 5.9 86
TOGWOTEE PASS 9580 14.6 16.6 88 15.4 17.8 87
TOWNSEND CREEK 8700 3.5 5.9 59 5.6 8.0 70
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Basin wide percent 86 79
BIGHORN BASIN
BALD MTN. 9380 9.9 13.2 75 7.1 11.9 60
BEAR TRAP MEADOW 8200 6.2 3.8 163 6.6 5.7 116
BONE SPRINGS DIV 9350 10.1 10.9 93 8.5 10.7 79
GRAVE SPRINGS 8550 4.7 5.7 82 5.7 7.2 79
KIRWIN 9550 -M 6.2 * -M 8.1 *
MARQUETTE 8760 3.8 -M * 5.8 -M *
MIDDLE POWDER 7760 7.4 7.2 103 10.5 8.1 130
OWL CREEK 8975 3.8 3.4 112 3.9 3.9 100
POWDER RIVER PASS 9480 8.1 7.3 111 8.7 8.8 99
SHELL CREEK 9580 9.8 10.2 96 9.0 9.7 93
TIMBER CREEK 7950 2.4 3.1 77 4.7 4.9 96
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Basin wide percent 96 91
SHOSHONE RIVER
BLACKWATER 9780 15.5 15.7 99 15.7 14.9 105
EVENING STAR 9200 18.7 17.8 105 21.0 20.4 103
MARQUETTE 8760 3.8 -M * 5.8 -M *
SYLVAN ROAD 7120 7.1 8.7 82 12.5 13.1 95
YOUNTS PEAK 8350 9.5 11.0 86 8.9 11.7 76
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Basin wide percent 95 97
POWDER RIVER
BEAR TRAP MEADOW 8200 6.2 3.8 163 6.6 5.7 116
CLOUD PEAK RESERVOIR 9860 8.4 9.7 87 7.8 8.8 89
GRAVE SPRINGS 8550 4.7 5.7 82 5.7 7.2 79
HANSEN SAWMILL 8360 4.3 4.3 100 5.8 5.5 105
MIDDLE POWDER 7760 7.4 7.2 103 10.5 8.1 130
POWDER RIVER PASS 9480 8.1 7.3 111 8.7 8.8 99
SOLDIER PARK 8720 2.9 -M * 5.8 -M *
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Basin wide percent 103 102
TONGUE RIVER
BIG GOOSE 7990 4.7 5.7 82 6.2 7.3 85
BONE SPRINGS DIV 9350 10.1 10.9 93 8.5 10.7 79
BURGESS JUNCTION 7880 6.7 7.5 89 6.5 8.3 78
DOME LAKE 8880 6.3 7.9 80 6.7 9.2 73
LITTLE GOOSE 8870 5.3 -M * 8.2 -M *
SUCKER CREEK 8880 8.4 8.1 104 8.5 9.7 88
TIE CREEK 6870 3.8 3.9 97 7.7 7.8 99
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Basin wide percent 91 83
BELLE FOURCHE
COLE CANYON 5910 3.9 4.5 87 5.2 6.6 79
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Basin wide percent 87 79
CHEYENNE RIVER BASIN
BLIND PARK 6890 4.8 5.7 84 7.6 8.7 87
NORTH RAPID CREEK 6130 5.0 5.4 93 6.2 7.1 87
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Basin wide percent 88 87
UPPER N. PLATTE
ARAPAHO RIDGE 10960 12.5 -M * 12.4 -M *
BLACKHALL MTN 9820 17.0 -M * 18.3 -M *
COLUMBINE 9160 14.1 17.5 81 14.4 18.7 77
DIVIDE PEAK 8880 10.7 14.1 76 12.5 15.6 80
JOE WRIGHT 10120 9.1 14.8 61 16.0 18.1 88
LAPRELE CREEK 8375 3.5 6.7 52 5.3 8.5 62
MED BOW 10500 17.0 -M * 21.0 -M *
NORTH FRENCH CREEK 10130 15.8 19.3 82 16.1 19.1 84
NEVER SUMMER 10280 10.1 -M * 8.3 -M *
OLD BATTLE 10000 18.1 22.2 82 19.9 25.7 77
RAWAH 9020 6.9 -M * 9.5 -M *
SAGE CREEK BASIN 7850 7.8 9.8 80 7.9 11.0 72
SAND LAKE 10050 15.1 18.7 81 15.4 17.2 90
SOUTH BRUSH CREEK 8440 6.9 8.6 80 8.4 10.6 79
TOWER 10500 22.2 32.8 68 21.2 29.1 73
WEBBER SPRINGS 9250 13.8 16.8 82 15.2 19.3 79
WILLOW CREEK PASS 9540 8.4 8.6 98 9.6 9.4 102
ZIRKEL 9340 15.6 -M * 18.0 -M *
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Basin wide percent 77 80
SWEETWATER
DEER PARK 9700 8.9 9.9 90 10.1 14.1 72
LARSEN CREEK 9000 5.7 -M * 8.7 -M *
SOUTH PASS 9040 7.3 10.3 71 6.8 12.3 55
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Basin wide percent 80 64
LOWER N. PLATTE
CASPER MTN. 7900 4.2 9.0 47 -M 10.2 *
LAPRELE CREEK 8375 3.5 6.7 52 5.3 8.5 62
RENO HILL 8400 5.6 8.9 63 7.0 10.2 69
WINDY PEAK 7900 2.6 5.2 50 5.0 7.2 69
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Basin wide percent 53 67
LARAMIE RIVER
BROOKLYN LAKE 10240 11.8 13.9 85 11.2 14.6 77
CINNABAR PARK 9574 11.3 16.0 71 12.5 18.3 68
CROW CREEK 8330 2.7 6.4 42 4.8 7.2 67
DEADMAN HILL 10220 9.2 11.5 80 8.9 11.6 77
RAWAH 9020 6.9 -M * 9.5 -M *
ROACH 9700 8.2 11.6 71 9.7 13.4 72
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Basin wide percent 73 72
S. PLATTE
BLACK MOUNTAIN 8920 5.0 -M * 6.1 -M *
CROW CREEK 8330 2.7 6.4 42 4.8 7.2 67
DEADMAN HILL 10220 9.2 11.5 80 8.9 11.6 77
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Basin wide percent 66 73
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.2 8.7 71 7.8 11.1 70
DIVIDE PEAK 8880 10.7 14.1 76 12.5 15.6 80
ELK RIVER 8700 10.1 13.8 73 10.7 14.6 73
LITTLE SNAKE RIVER 8915 14.7 18.4 80 18.4 23.3 79
OLD BATTLE 10000 18.1 22.2 82 19.9 25.7 77
SAGE CREEK BASIN 7850 7.8 9.8 80 7.9 11.0 72
SANDSTONE RS 8150 8.2 9.9 83 9.1 13.8 66
WHISKEY PARK 8950 16.4 19.3 85 17.9 20.6 87
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Basin wide percent 79 77
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.0 9.0 89 8.2 9.4 87
BLIND BULL SUM 8650 13.9 16.3 85 11.0 14.6 75
EAST RIM DIVIDE 7930 7.7 7.4 104 6.5 8.6 76
ELKHART PARK G.S. 9400 7.5 8.6 87 8.1 9.5 85
GROS VENTRE SUMMIT 8750 8.0 9.0 89 8.5 9.2 92
GUNSIGHT PASS 9820 8.7 9.6 91 9.0 10.1 89
KENDALL R.S. 7740 7.5 9.0 83 8.8 10.5 84
LOOMIS PARK 8240 8.6 10.6 81 10.1 12.7 80
NEW FORK LAKE 8340 6.1 7.5 81 5.4 7.9 68
POCKET CREEK 9360 7.1 -M * 8.3 -M *
SNIDER BASIN 8060 7.8 9.0 87 9.6 10.5 91
SPRING CREEK DIVIDE 9000 15.5 16.5 94 15.9 17.6 90
TRIPLE PEAK 8500 13.6 15.5 88 16.0 18.2 88
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Basin wide percent 88 84
LOWER GREEN RIVER
BLACKS FORK JCT 8870 4.4 -M * 5.9 -M *
BUCK PASTURE 9700 8.4 -M * 10.7 -M *
EF BLACKS FORK GS 9308 9.5 -M * 5.9 -M *
HAMS FORK 7840 6.8 8.4 81 6.4 8.3 77
HEWINTA 9519 5.7 7.0 81 7.8 9.9 79
HICKERSON PARK 9145 4.1 5.1 80 5.7 6.9 83
HOLE-IN-ROCK 9150 5.3 4.8 110 6.3 6.5 97
INDIAN CREEK 9425 14.0 16.6 84 12.7 16.1 79
KELLEY R.S. 8180 8.8 10.7 82 9.9 13.2 75
SPIRIT LK 10223 7.2 7.1 101 10.5 13.3 79
STEEL CREEK PARK 10200 6.8 10.3 66 9.3 11.2 83
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Basin wide percent 84 80
UPPER BEAR RIVER
BEAR RIVER RS 8500 5.4 -M * 7.3 -M *
BUG LAKE 7950 11.0 13.3 83 12.5 14.1 89
BURTS MILLER RANCH 8000 3.5 3.3 106 5.1 6.8 75
CHALK CREEK #1 8993 12.1 16.1 75 14.6 17.8 82
HAYDEN FORK 9212 7.3 11.0 66 10.8 14.9 72
KELLEY R.S. 8180 8.8 10.7 82 9.9 13.2 75
LILY LAKE 9156 6.9 9.0 77 8.2 12.1 68
MONTE CRISTO 8960 13.9 18.9 74 16.1 18.6 87
SALT RIVER SUMMIT 7760 7.5 9.5 79 10.5 12.2 86
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Basin wide percent 77 80
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-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 wide percent 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.
Reference period for comparison of conditions is 1981-2010.
Provisional data, subject to revision.
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-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.
