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 TUESDAY: NOVEMBER 13 , 2007
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .8 1.6 50 5.9 3.3 179
COTTONWOOD CREEK 7670 2.4 2.0 120 5.5 4.7 117
GRANITE CREEK 6770 .9 1.3 69 4.7 2.9 162
GRASSY LAKE 7265 2.9 3.2 91 8.0 5.4 148
GROS VENTRE SUMMIT 8750 2.9 2.2 132 4.6 2.7 170
LEWIS LAKE DIVIDE 7850 2.2 3.2 69 7.2 5.2 138
PHILLIPS BENCH 8200 2.3 3.0 77 6.4 3.9 164
SALT RIVER SUMMIT 7760 .2 1.0 20 2.7 3.0 90
SNAKE RIVER STATION 6920 .4 1.5 27 5.8 3.6 161
SPRING CREEK DIVIDE 9000 2.1 3.1 68 3.6 4.2 86
THUMB DIVIDE 7980 1.1 1.8 61 5.2 3.2 162
TOGWOTEE PASS 9580 5.5 4.1 134 6.6 4.3 153
TWO OCEAN PLATEAU 9240 6.8 4.9 139 7.2 4.7 153
WILLOW CREEK 8380 2.6 3.7 70 7.6 5.6 136
----- -----
Basin wide percent of average 90 143
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 5.8 4.3 135 5.6 3.3 170
BLACK BEAR 8170 5.0 4.8 104 7.6 5.9 129
CANYON 7870 1.6 1.5 107 4.4 2.9 152
FISHER CREEK 9100 6.9 4.8 144 7.6 5.4 141
MADISON PLATEAU 7750 2.1 2.9 72 5.6 4.0 140
NORTHEAST ENTRANCE 7350 .4 .9 44 3.6 2.3 157
PARKER PEAK 9400 5.3 4.0 132 6.4 3.3 194
SYLVAN LAKE 8420 2.6 3.4 76 6.6 4.0 165
THUMB DIVIDE 7980 1.1 1.8 61 5.2 3.2 162
TWO OCEAN PLATEAU 9240 6.8 4.9 139 7.2 4.7 153
WHISKEY CREEK 6800 .8 1.6 50 4.8 3.5 137
WHITE MILL 8700 4.6 3.5 131 5.8 4.3 135
WOLVERINE 7650 .5 1.3 38 4.1 2.7 152
----- -----
Basin wide percent of average 110 151
WIND RIVER
BURROUGHS CREEK 8750 2.8 1.9 147 5.1 2.7 189
COLD SPRINGS 9630 .5 1.8 28 2.8 2.8 100
DEER PARK 9700 -M 3.6 * 3.8 4.3 88
HOBBS PARK 10100 1.7 3.3 52 3.6 3.2 112
LITTLE WARM 9370 1.3 1.9 68 3.4 2.8 121
SOUTH PASS 9040 .5 2.7 19 2.9 3.5 83
ST. LAWRENCE ALT 8620 .5 1.5 33 1.7 2.5 68
TOGWOTEE PASS 9580 5.5 4.1 134 6.6 4.3 153
TOWNSEND CREEK 8700 .3 1.7 18 2.6 3.1 84
----- -----
Basin wide percent of average 69 111
BIGHORN BASIN
BALD MTN. 9380 3.4 4.1 83 4.2 3.5 120
BEAR TRAP MEADOW 8200 1.0 1.0 100 2.5 2.5 100
BLACKWATER 9780 6.0 4.6 130 6.0 4.1 146
BONE SPRINGS DIV 9350 3.1 3.8 82 4.5 3.5 129
EVENING STAR 9200 5.1 4.7 109 7.7 4.6 167
GRAVE SPRINGS 8550 1.7 1.8 94 3.1 2.6 119
KIRWIN 9550 4.2 2.8 150 5.3 2.7 196
MARQUETTE 8760 .0 2.6 0 3.7 3.1 119
MIDDLE POWDER 7760 1.8 2.2 82 2.9 3.6 81
OWL CREEK 8975 1.4 1.3 108 3.1 1.6 194
POWDER RIVER PASS 9480 2.0 2.2 91 4.0 2.7 148
SHELL CREEK 9580 4.8 3.7 130 5.5 3.0 183
SYLVAN LAKE 8420 2.6 3.4 76 6.6 4.0 165
SYLVAN ROAD 7120 .6 1.4 43 5.8 3.5 166
TIMBER CREEK 7950 .6 1.6 37 3.7 2.2 168
YOUNTS PEAK 8350 3.3 2.5 132 6.2 3.0 207
----- -----
Basin wide percent of average 95 149
SHOSHONE RIVER
BLACKWATER 9780 6.0 4.6 130 6.0 4.1 146
EVENING STAR 9200 5.1 4.7 109 7.7 4.6 167
KIRWIN 9550 4.2 2.8 150 5.3 2.7 196
MARQUETTE 8760 .0 2.6 0 3.7 3.1 119
SYLVAN LAKE 8420 2.6 3.4 76 6.6 4.0 165
SYLVAN ROAD 7120 .6 1.4 43 5.8 3.5 166
YOUNTS PEAK 8350 3.3 2.5 132 6.2 3.0 207
----- -----
Basin wide percent of average 99 165
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.0 1.0 100 2.5 2.5 100
BIG GOOSE 7990 1.4 1.3 108 4.7 2.5 188
BONE SPRINGS DIV 9350 3.1 3.8 82 4.5 3.5 129
BURGESS JUNCTION 7880 1.6 2.4 67 4.1 3.0 137
CLOUD PEAK RESERVOIR 9860 3.2 2.5 128 6.1 3.6 169
DOME LAKE 8880 2.3 3.0 77 5.1 3.5 146
GRAVE SPRINGS 8550 1.7 1.8 94 3.1 2.6 119
HANSEN SAWMILL 8360 -M 1.3 * -M 2.5 *
MIDDLE POWDER 7760 1.8 2.2 82 2.9 3.6 81
POWDER RIVER PASS 9480 2.0 2.2 91 4.0 2.7 148
SUCKER CREEK 8880 2.4 2.1 114 4.5 3.3 136
TIE CREEK 6870 .1 1.2 8 3.2 3.0 107
----- -----
Basin wide percent of average 88 132
BELLE FOURCHE
BLIND PARK 6890 .4 1.4 29 1.7 3.4 50
COLE CANYON 5910 .0 1.4 0 1.2 2.3 52
NORTH RAPID CREEK 6130 .9 .9 100 1.4 3.1 45
----- -----
Basin wide percent of average 35 49
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 2.2 5 4.1 3.7 111
DIVIDE PEAK 8880 2.0 2.9 69 3.5 3.9 90
ELK RIVER 8700 .6 1.3 46 3.4 3.2 106
JOE WRIGHT 10120 3.0 4.1 73 5.5 5.0 110
NORTH FRENCH CREEK 10130 3.2 4.8 67 4.8 4.9 98
OLD BATTLE 10000 2.9 5.1 57 4.9 5.5 89
SAGE CREEK BASIN 7850 .1 1.7 6 2.9 2.3 126
SOUTH BRUSH CREEK 8440 1.1 1.4 79 3.9 3.7 105
TOWER 10500 3.2 6.7 48 5.3 6.3 84
WEBBER SPRINGS 9250 1.5 3.5 43 4.0 4.7 85
WILLOW CREEK PASS 9540 2.5 2.1 119 3.3 2.9 114
----- -----
Basin wide percent of average 56 99
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.7 3.5 49 3.1 3.8 82
CASPER MTN. 7900 1.2 2.8 43 4.0 3.7 108
DEADMAN HILL 10220 3.4 3.3 103 3.6 3.5 103
DEER PARK 9700 -M 3.6 * 3.8 4.3 88
LAPRELE CREEK 8375 .2 1.8 11 2.4 2.9 83
RENO HILL 8400 2.1 2.6 81 4.3 3.6 119
ROACH 9700 1.9 2.3 83 3.4 3.4 100
SAND LAKE 10050 4.5 5.4 83 5.4 4.5 120
SOUTH PASS 9040 .5 2.7 19 2.9 3.5 83
WINDY PEAK 7900 .5 1.2 42 2.0 2.5 80
----- -----
Basin wide percent of average 62 98
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M 1.0 * 2.4 2.8 86
DIVIDE PEAK 8880 2.0 2.9 69 3.5 3.9 90
OLD BATTLE 10000 2.9 5.1 57 4.9 5.5 89
SANDSTONE RS 8150 .0 1.1 0 2.5 3.5 71
WHISKEY PARK 8950 2.1 3.2 66 4.4 4.5 98
----- -----
Basin wide percent of average 57 88
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.8 2.2 82 2.4 2.7 89
BLIND BULL SUM 8650 2.3 3.4 68 3.6 3.5 103
EAST RIM DIVIDE 7930 .1 1.4 7 2.2 2.1 105
ELKHART PARK G.S. 9400 1.6 1.7 94 3.0 2.9 103
GROS VENTRE SUMMIT 8750 2.9 2.2 132 4.6 2.7 170
KENDALL R.S. 7740 .8 1.5 53 2.8 2.4 117
LOOMIS PARK 8240 .8 2.0 40 2.9 2.9 100
NEW FORK LAKE 8340 .7 1.2 58 2.4 2.4 100
SNIDER BASIN 8060 .4 1.6 25 2.2 2.6 85
SPRING CREEK DIVIDE 9000 2.1 3.1 68 3.6 4.2 86
TRIPLE PEAK 8500 2.9 2.8 104 5.0 3.6 139
----- -----
Basin wide percent of average 71 108
LOWER GREEN RIVER
HAMS FORK 7840 .0 1.0 0 1.8 2.2 82
HEWINTA 9519 -M 1.3 * 4.6 3.3 139
HICKERSON PARK 9145 .0 .8 0 3.0 2.4 125
HOLE-IN-ROCK 9150 .2 .9 22 3.6 2.2 164
INDIAN CREEK 9425 1.9 3.2 59 3.2 4.1 78
KELLEY R.S. 8180 .7 2.0 35 3.2 3.4 94
STEEL CREEK PARK 10200 1.5 2.5 60 4.9 3.4 144
----- -----
Basin wide percent of average 41 116
UPPER BEAR RIVER
BUG LAKE 7950 .0 2.1 0 1.6 3.5 46
HAYDEN FORK 9212 .3 1.5 20 3.7 3.7 100
KELLEY R.S. 8180 .7 2.0 35 3.2 3.4 94
LILY LAKE 9156 .5 1.6 31 4.1 3.6 114
MONTE CRISTO 8960 .7 2.7 26 3.7 4.3 86
SALT RIVER SUMMIT 7760 .2 1.0 20 2.7 3.0 90
TRIAL LAKE 9992 1.4 3.2 44 3.2 4.2 76
----- -----
Basin wide percent of average 27 86
-----------------------------------------------------------------------------
-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.