This is the fourth Monday Morning Report for the 2009-2010 snow season. Remember that at this early time of year these values are very subjective and fluctuate wildly. Nine basins lost SWE, 3 basins gained SWE and 1 stayed the same. Last year at this time the state average was 92% with a low of 54% and a high of 258% of average. This year the state average is 100% with a low of 50% and a high of 126% of average. See the table & map below for more information. The map may differ slightly from the table depending upon how many stations were reporting at the time.
For those of you with INTERNET capability, this report and map showing SWE percentages for the state can be found at “http://www.wrds.uwyo.edu/wrds/nrcs/nrcs.html”
Figure 1 -- SNOW WATER EQUIVALENT AS PERCENT OF AVERAGE. The following table shows the current, last year and preceding weeks' % of average snow water equivalent (SWE) amounts for Wyoming basins. Average is based on all reporting SNOTEL sites in the basin, not the snow courses. The reference period for average comparison is 1971-2000.
|
DRAINAGE BASIN |
11/16/2009 |
11/9/2009 |
11/2/2009 |
11/16/2008 |
11/9/2008 |
|
|
SNAKE RIVER |
77 |
81 |
117 |
93 |
94 |
|
|
UPPER YELLOWSTONE |
114 |
109 |
145 |
95 |
83 |
|
|
WIND RIVER |
126 |
144 |
210 |
98 |
84 |
|
|
BIGHORN BASIN |
101 |
112 |
147 |
98 |
72 |
|
|
SHOSHONE |
104 |
108 |
136 |
81 |
64 |
|
|
POWDER - TONGUE |
104 |
119 |
172 |
104 |
62 |
|
|
BELLE FOURCHE |
50 |
50 |
143 |
258 |
262 |
|
|
UPPER NORTH PLATTE |
114 |
110 |
168 |
68 |
61 |
|
|
LOWER N PLATTE,SWT |
124 |
135 |
192 |
69 |
50 |
|
|
LITTLE SNAKE RIVER |
115 |
116 |
151 |
66 |
53 |
|
|
UPPER GREEN RIVER |
74 |
96 |
156 |
84 |
64 |
|
|
LOWER GREEN RIVER |
92 |
95 |
175 |
54 |
55 |
|
|
UPPER BEAR RIVER |
62 |
48 |
90 |
75 |
76 |
|
|
Weighted State Average |
100 |
108 |
162 |
92 |
76 |
|
* red = down * blue = up * green = even
For more information, contact:
Lee Hackleman or Ken Von Buettner (307) 233-6744, 6743
NRCS Snow Surveys
100 East B St., Room 3124
Casper, WY