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Snow Course Measurements for May 2006
May measurements received as of Monday, May 15, 06:01 PM
Num Name Elev. Date Depth Water Density April 1 Average
Content
Scott River Basin
5 Middle Boulder 1 6,600 27-APR 126.3 61.0 48% 32.4 188%
311 Middle Boulder 3 6,200 27-APR 113.3 52.8 47% 28.3 187%
298 Dynamite Meadow 5,700 27-APR 72.4 30.8 43% 18.6 166%
285 Swampy John 5,500 27-APR 72.4 30.0 41% 34.0 88%
Basin Average Pct. of April 1: 157%
May 1: 225%
Trinity River Basin
9 Deadfall Lakes 7,200 27-APR 119.2 54.8 46% 34.2 160%
10 Red Rock Mountain 6,700 29-APR 159.3 76.6 48% 44.1 174%
11 Bear Basin 6,500 29-APR 134.9 63.2 47% 39.1 162%
12 Shimmy Lake 6,400 20-APR 201.1 88.7 44% 50.3 176%
16 Highland Lakes 6,030 29-APR 130.9 67.2 51% 35.2 191%
437 Paradise Peak 5,800 Scheduled for measurement by Hayfork Ranger District
17 Big Flat (Course) 5,100 29-APR 44.9 25.0 56% 13.1 191%
Basin Average Pct. of April 1: 176%
May 1: 251%
Sacramento River Basin
18 Mount Shasta 7,900 Scheduled for measurement by Mount Shasta Ranger District
19 Sand Flat (Course) 6,800 27-APR 148.3 74.0 50% 43.6 170%
22 Slate Creek 5,700 29-APR 138.1 70.4 51% 30.1 234%
Basin Average Pct. of April 1: 202%
May 1: 280%
Mc Cloud River Basin
23 Brewer Creek 6,250 27-APR 128.0 62.5 49% 36.2 173%
25 Stouts Meadow 5,400 27-APR 132.2 66.9 51% 37.8 177%
Basin Average Pct. of April 1: 175%
May 1: 243%
Pit River Basin
33 Thousand Lakes 6,500 02-MAY 96.0 48.0 50% 34.6 139%
35 Adin Mountain 6,200 28-APR 34.6 14.8 43% 12.5 118%
343 New Manzanita Lake 5,900 30-APR 18.6 9.2 49% 8.0 115%
Basin Average Pct. of April 1: 124%
May 1: 172%
Cottonwood Cr Basin
436 Bully Choop 6,100 Scheduled for measurement by Hayfork Ranger District
Feather River Basin
47 Lower Lassen Peak 8,250 01-MAY 275.6 140.4 51% 80.2 175%
361 Kettle Rock 7,300 01-MAY 63.1 29.4 47% 23.4 126%
48 Mount Dyer 1 7,100 24-APR 106.5 45.1 42% 25.9 174%
359 Grizzly Ridge 6,900 27-APR 82.7 37.3 45% 30.4 123%
279 Eureka Bowl 6,800 25-APR 112.4 56.7 50% 42.7 133%
388 Pilot Peak (DWR) 6,800 27-APR 126.4 64.0 51% 45.5 141%
280 Rowland Creek 6,700 26-APR 43.9 18.6 42% 17.4 107%
75 Church Meadows 6,700 25-APR 89.7 38.9 43% 30.7 127%
360 Mount Hough 6,700 24-APR 99.6 43.6 44% 30.7 142%
53 Three Lakes 6,250 27-APR 109.0 57.8 53% 40.8 142%
52 Eureka Lake 6,200 25-APR 79.0 35.6 45% 31.7 112%
51 Harkness Flat 6,200 24-APR 92.8 41.2 44% 28.5 145%
290 Mount Dyer 2 6,050 24-APR 62.7 28.9 46% 16.6 174%
54 Mill Creek Flat 5,900 01-MAY 96.5 46.8 48% 39.0 120%
353 Frenchman Cove 5,800 26-APR 0.0 0.0 2.1 0% *
354 Antelope Ridge 5,650 01-MAY 0.0 0.0 3.0 0% *
355 Abbey 5,650 27-APR 18.6 7.7 41% 9.0 86%
49 Letterbox 5,600 27-APR 125.1 62.1 50% 49.0 127%
55 Mount Stover 5,600 25-APR 43.7 18.8 43% 14.7 128%
56 Browns Camp 5,400 27-APR 71.4 36.2 51% 23.3 155%
58 Feather River Meadow 5,400 25-APR 66.5 31.2 47% 23.1 135%
59 Warner Creek 5,100 24-APR 48.2 21.2 44% 14.7 144%
434 Humbug Summit 2 4,850 25-APR 36.9 16.8 46% 14.3 117%
Basin Average Pct. of April 1: 135%
May 1: 187%
Yuba River Basin
64 Webber Peak 7,800 28-APR 133.4 60.9 46% 41.9 145%
65 Castle Creek 5 7,400 01-MAY 141.5 69.6 49% 52.1 134%
67 Red Mountain 7,200 25-APR 149.1 69.4 47% 51.9 134%
66 Meadow Lake 7,200 25-APR 166.2 74.1 45% 55.8 133%
68 English Mountain 7,100 28-APR 111.9 58.3 52% 45.4 128%
69 Donner Summit 6,900 25-APR 107.8 47.7 44% 38.6 124%
74 Yuba Pass 6,700 01-MAY 68.4 33.6 49% 29.6 114%
76 Furnace Flat 6,700 25-APR 131.0 60.1 46% 48.4 124%
78 Findley Peak 6,500 28-APR 88.0 40.8 46% 29.8 137%
77 Lake Fordyce 6,500 Scheduled for measurement by Pacific Gas and Electric Company, Auburn
389 Robinson Cow Camp 6,480 27-APR 120.0 60.4 50% 42.5 142%
390 Sunnyside Meadow 6,300 27-APR 148.1 73.0 49% 55.4 132%
80 Cisco 5,900 25-APR 74.4 34.7 47% 27.6 126%
372 Chapman Creek 5,850 01-MAY 56.5 26.5 47% 23.7 112%
83 Bowman Lake 5,650 28-APR 57.0 26.5 46% 22.3 119%
391 Lexington 5,600 01-MAY 87.1 44.0 51% 30.7 143%
277 Gibsonville 5,400 01-MAY 62.0 28.1 45% 28.7 98%
85 Lake Spaulding 5,200 26-APR 53.6 24.8 46% 21.3 116%
Basin Average Pct. of April 1: 127%
May 1: 176%
American River Basin
106 Upper Carson Pass 8,500 26-APR 131.9 58.1 44% 36.2 160%
331 Lower Carson Pass 8,400 26-APR 133.3 67.3 50% 39.2 172%
107 Caples Lake (DWR) 8,000 26-APR 110.0 46.1 42% 30.8 150%
365 Alpha 7,600 26-APR 102.1 47.8 47% 33.8 141%
338 Lost Corner Mountain 7,500 01-MAY 106.0 47.7 45% 36.2 132%
108 Echo Summit 7,450 28-APR 86.5 40.3 47% 33.8 119%
110 Lake Audrain 7,300 28-APR 106.2 50.1 47% 35.3 142%
109 Silver Lake 7,100 27-APR 37.8 17.6 47% 21.0 84%
316 Wrights Lake 6,900 01-MAY 81.3 39.2 48% 32.8 120%
113 PHillips 6,800 27-APR 67.4 31.8 47% 27.6 115%
320 Lyons Creek 6,700 26-APR 91.8 40.2 44% 31.8 126%
115 Huysink 6,600 28-APR 91.1 42.3 46% 45.0 94%
289 Tamarack Flat 6,550 27-APR 78.1 36.1 46% 28.4 127%
114 Wabena Meadows 6,300 01-MAY 96.8 44.9 46% 42.8 105%
369 Miranda Cabin 6,200 01-MAY 91.8 45.6 50% 40.0 114%
120 Onion Creek 6,100 28-APR 54.6 25.7 47% 19.6 131%
371 Diamond Crossing 6,050 01-MAY 33.8 15.4 46% 22.0 70%
122 Talbot Camp 5,750 01-MAY 39.8 18.2 46% 20.9 87%
322 Robbs Valley 5,600 28-APR 34.9 17.4 50% 15.6 112%
127 Ice House 5,300 28-APR 18.4 8.7 47% 5.8 150%
Basin Average Pct. of April 1: 123%
May 1: 170%
Mokelumne River Basin
323 Highland Meadow 8,700 27-APR 170.9 82.9 49% 48.7 170%
364 Tragedy Creek 8,150 27-APR 158.8 47.1 30% 45.0 105%
129 Blue Lakes 8,000 27-APR 113.0 48.2 43% 36.2 133%
131 Wheeler Lake 7,800 27-APR 183.5 91.9 50% 53.3 172%
132 Pacific Valley 7,500 27-APR 118.4 54.8 46% 38.9 141%
133 Corral Flat 7,200 27-APR 127.0 66.1 52% 40.5 163%
363 Podesta 7,200 28-APR 137.5 63.5 46% 44.8 142%
134 Bear Valley Ridge 1 6,700 27-APR 74.1 35.4 48% 24.6 144%
435 Lumberyard 2 6,500 28-APR 54.5 28.0 51% 13.8 203%
136 Hams Station 5,500 28-APR 20.1 10.1 50% 5.3 191% *
137 Antelope Springs 4,350 28-APR 3.6 1.6 44% 2.9 55% *
Basin Average Pct. of April 1: 153%
May 1: 186%
Stanislaus River Basin
345 Deadman Creek 9,250 27-APR 131.8 59.6 45% 35.1 170%
344 Clark Fork Meadow 8,900 27-APR 147.7 68.7 47% 39.8 173%
427 Gianelli Meadow 8,400 29-APR 172.9 80.5 47% 52.9 152%
138 Lower Relief Valley 8,100 27-APR 137.2 66.8 49% 39.6 169%
139 Soda Creek Flat 7,800 27-APR 68.7 31.0 45% 22.0 141%
384 Stanislaus Meadow 7,750 27-APR 154.1 73.3 48% 51.0 144%
140 Eagle Meadow 7,500 27-APR 68.0 31.6 46% 24.2 131%
142 Herring Creek 7,300 27-APR 89.2 40.7 46% 28.0 145%
143 Relief Dam 7,250 27-APR 57.1 25.7 45% 19.9 129%
416 Bloods Creek 7,200 24-APR 107.0 46.7 44% 34.6 135%
373 Hells Kitchen 6,550 24-APR 68.8 30.4 44% 21.8 139%
386 Black Springs 6,500 24-APR 79.1 38.4 49% 22.0 175%
145 Niagara Flat 6,500 27-APR 60.3 27.5 46% 19.6 140%
Basin Average Pct. of April 1: 149%
May 1: 182%
Tuolumne River Basin
157 Dana Meadows 9,800 28-APR 114.1 54.4 48% 31.1 175%
159 Bond Pass 9,300 24-APR 172.9 78.4 45% 44.9 175%
368 New Grace Meadow 8,900 28-APR 164.8 86.7 53% 48.0 181%
161 Tuolumne Meadows 8,600 27-APR 82.5 40.2 49% 22.7 177%
162 Horse Meadow 8,400 25-APR 163.4 74.4 46% 46.7 159%
163 Wilma Lake 8,000 28-APR 147.8 74.6 50% 43.2 173%
165 Sachse Springs 7,900 26-APR 127.9 58.2 46% 38.1 153%
164 Spotted Fawn 7,800 26-APR 157.4 70.7 45% 45.6 155%
166 Huckleberry Lake 7,800 25-APR 147.4 68.2 46% 41.9 163%
167 Paradise Meadow 7,650 28-APR 122.8 75.2 61% 39.9 188%
348 Kerrick Corral 7,000 30-APR 57.2 26.1 46% 23.5 111%
168 Upper Kibbie Ridge 6,700 27-APR 49.5 22.7 46% 18.6 122%
169 Vernon Lake 6,700 27-APR 61.4 27.5 45% 22.4 123%
173 Lower Kibbie 6,700 27-APR 66.1 32.0 48% 26.0 123%
171 Beehive Meadow 6,500 27-APR 61.1 26.1 43% 23.5 111%
172 Bell Meadow 6,500 30-APR 21.8 9.1 42% 15.5 59%
Basin Average Pct. of April 1: 147%
May 1: 179%
Merced River Basin
176 Snow Flat 8,700 25-APR 162.4 82.5 51% 44.5 185%
177 Ostrander Lake 8,200 26-APR 125.8 59.4 47% 32.6 182%
178 Tenaya Lake 8,150 25-APR 122.6 52.6 43% 33.6 157%
179 Gin Flat (Course) 7,000 29-APR 89.0 45.0 51% 32.0 141%
180 Peregoy Meadows 7,000 27-APR 81.6 35.9 44% 29.3 123%
Basin Average Pct. of April 1: 157%
May 1: 192%
San Joaquin River Basin
183 Piute Pass 11,300 30-APR 131.8 59.7 45% 37.9 158%
184 Emerald Lake 10,600 27-APR 137.0 56.7 41% 35.4 160%
276 Pioneer Basin 10,400 25-APR 133.9 57.1 43% 34.0 168%
185 Heart Lake 10,100 25-APR 111.5 45.6 41% 27.9 163%
186 Volcanic Knob 10,050 25-APR 130.1 54.1 42% 30.7 176%
191 Dutch Lake 9,100 27-APR 115.2 48.6 42% 28.1 173%
190 Kaiser Pass 9,100 27-APR 146.0 64.7 44% 39.0 166%
192 Coyote Lake 8,850 27-APR 129.3 53.7 42% 32.2 167%
193 Cora Lakes 8,400 Scheduled for measurement by Minarets Ranger District
194 Nellie Lake 8,000 27-APR 138.2 59.5 43% 35.8 166%
324 Lake Thomas A Edison 7,800 27-APR 57.2 23.8 42% 14.7 162%
196 Chilkoot Lake 7,450 27-APR 112.9 57.8 51% 36.8 157%
347 Tamarack Creek 7,250 26-APR 84.7 37.9 45% 23.8 159%
197 Chilkoot Meadow 7,150 27-APR 114.8 56.8 49% 36.6 155%
200 Clover Meadow 7,000 Scheduled for measurement by Minarets Ranger District
201 Jackass Meadow 6,950 Scheduled for measurement by Minarets Ranger District
202 Chiquito Creek 6,800 28-APR 70.1 32.4 46% 21.7 149%
204 Poison Meadow 6,800 27-APR 69.3 34.3 49% 24.8 138%
Basin Average Pct. of April 1: 161%
May 1: 197%
Kings River Basin
398 Bench Lake 10,600 29-APR 103.3 44.4 43% 27.1 164%
223 Blackcap Basin 10,300 25-APR 135.1 54.0 40% 34.1 158%
396 Rattlesnake Creek Ba 9,900 25-APR 129.5 52.4 40% 39.8 132%
225 Beard Meadow 9,800 25-APR 129.4 51.4 40% 33.3 154%
224 Upper Burnt Corral 9,700 25-APR 147.0 59.0 40% 37.8 156%
397 Scenic Meadow 9,650 29-APR 86.9 39.1 45% 24.1 162%
229 Round Corral 9,000 27-APR 136.2 59.4 44% 35.8 166%
226 Rowell Meadow 8,850 29-APR 95.3 43.8 46% 26.5 165%
227 Woodchuck Meadow 8,800 27-APR 119.8 50.1 42% 31.5 159%
232 Long Meadow (Kings R) 8,500 25-APR 117.8 47.0 40% 29.3 160%
426 Courtright 8,350 25-APR 122.1 47.6 39% 30.7 155%
234 Post Corral Meadow 8,200 25-APR 103.9 41.4 40% 26.3 157%
308 Dodsons Meadow 8,050 25-APR 114.0 45.7 40% 29.6 154%
236 Big Meadows 7,600 29-APR 75.5 37.4 50% 24.6 152%
237 Horse Corral Meadow 7,600 29-APR 42.0 19.1 45% 16.3 117%
239 Fred Meadow 6,950 27-APR 38.0 15.8 42% 21.3 74%
240 Grant Grove 6,600 26-APR 29.1 13.3 46% 13.4 99%
Basin Average Pct. of April 1: 146%
May 1: 188%
Kaweah River Basin
292 Farewell Gap 9,500 29-APR 118.5 60.9 51% 35.8 170%
243 Panther Meadow 8,600 26-APR 137.0 62.0 45% 36.7 169%
244 Hockett Meadows 8,500 29-APR 91.3 44.4 49% 27.5 161%
245 Mineral King 8,000 27-APR 60.6 14.0 23% 20.6 68%
246 Giant Forest 6,400 28-APR 28.8 12.0 42% 14.7 82%
Basin Average Pct. of April 1: 130%
May 1: 167%
Tule River Basin
247 Quaking Aspen 7,000 04-MAY 7.6 3.2 42% 12.3 26%
248 Old Enterprise Mill 6,600 28-APR 27.6 11.5 42% 14.3 80%
Basin Average Pct. of April 1: 53%
May 1: 68%
Kern River Basin
250 Bighorn Plateau 11,350 30-APR 85.4 39.0 46% 23.7 165%
251 Cottonwood Pass 11,050 25-APR 58.4 21.4 37% 14.8 145%
252 Siberian Pass 10,900 28-APR 77.4 31.7 41% 20.0 158%
253 Crabtree Meadow 10,700 29-APR 67.2 30.4 45% 19.6 155%
275 Sandy Meadows 10,650 30-APR 62.8 27.7 44% 19.2 144%
255 Tyndall Creek 10,650 30-APR 63.3 29.9 47% 18.8 159%
254 Guyot Flat 10,650 28-APR 74.2 32.6 44% 20.8 157%
257 Big Whitney Meadow 9,750 27-APR 60.5 26.2 43% 17.2 152%
256 Rock Creek 9,600 28-APR 55.3 25.8 47% 17.8 145%
258 Round Meadow 9,000 27-APR 76.8 33.4 43% 24.1 139%
259 Ramshaw Meadows 8,700 27-APR 36.4 13.5 37% 11.5 117%
260 Little Whitney Meadow 8,500 26-APR 37.2 15.8 42% 12.9 122%
264 Quinn Ranger Station 8,350 29-APR 56.5 26.7 47% 18.9 141%
261 Bonita Meadows 8,300 27-APR 22.6 9.8 43% 13.6 72%
249 Dead Horse Meadow 7,300 02-MAY 15.3 6.8 44% 10.7 64%
Basin Average Pct. of April 1: 136%
May 1: 174%
Susan River Basin
45 Silver Lake Meadows 6,450 28-APR 82.7 43.4 52% 29.4 148%
46 Norvell Flat 5,700 28-APR 30.8 15.1 49% 15.1 100%
Basin Average Pct. of April 1: 124%
May 1: 146%
Truckee River Basin
89 Webber Lake 7,000 28-APR 92.9 44.1 47% 31.7 139%
Basin Average Pct. of April 1: 139%
May 1: 164%
Walker River Basin
150 Virginia Lakes 9,400 Scheduled for measurement by CA Dept of Water Resources
377 Virginia Lakes Ridge 9,300 02-MAY 65.9 28.8 44% 19.5 148%
152 Sonora Pass 8,750 27-APR 98.4 44.4 45% 24.9 178%
Basin Average Pct. of April 1: 163%
May 1: 192%
Owens River Basin
212 East Piute Pass 10,800 29-APR 64.1 26.3 41% 15.2 173%
221 Cottonwood Lakes 1 10,150 Scheduled for measurement by City of Los Angeles; Dept of Water and Power
205 Mammoth Pass (Ladwp) 9,300 Scheduled for measurement by City of Los Angeles; Dept of Water and Power
214 North Lake 9,300 30-APR 37.9 14.0 37% 10.2 137%
Basin Average Pct. of April 1: 155%
May 1: 180%
Summary of Snow Surveys
| Region | No. Basins | No. Courses | Avg WC | % Average April 1 | % Average May 1 |
|---|---|---|---|---|---|
| North Coast | 2 | 10 | 55.0" | 168% | 240% |
| Sacramento | 6 | 67 | 41.7" | 128% | 178% |
| San Joaquin Valley | 5 | 58 | 51.4" | 153% | 186% |
| Tulare Lake | 4 | 39 | 33.3" | 135% | 174% |
| North Lahontan | 3 | 5 | 35.2" | 143% | 168% |
| South Lahontan | 1 | 2 | 20.1" | 155% | 180% |
| Statewide Average (weighted) | 142% | 185% | |||
* This course not included in river, basin or Statewide computations.
THIS SUMMARY MAY NOT MATCH THAT PUBLISHED IN BULLETIN 120 DUE TO CHANGES IN AVERAGES AND COURSE SELECTION. USE ONLY FOR COMPARISONS BETWEEN YEARS
Data are preliminary and subject to revision. This document is updated hourly during the data-collection period.
hart@water.ca.gov
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