Snow Course Measurements

Snow Course Measurements for May 2016

May measurements received as of Wednesday, May 4, 02:01 PM

Snow depth and water content are in inches. April 1 averages are based on measurements made during years 1961-2010. Courses are grouped by river basins, listed in north-south and high-low elevation order. Contact Dave Rizzardo for more information.


Num         Name                 Elev.  Date  Depth     Water   Density  April 1 Average
                                                       Content
                              Scott River Basin
  5 Middle Boulder 1          6,600	03-MAY	 20.5	 12.0	59%	 31.5	 38%	
311 Middle Boulder 3          6,200	03-MAY	  6.5	  4.0	62%	 27.8	 14%	
298 Dynamite Meadow           5,700	03-MAY	  0.0	  0.0		 18.2	  0%	
285 Swampy John               5,500	28-APR	 22.0	 11.0	50%	 30.9	 36%	
                                                Basin Average Pct. of April 1:  22%
                                                                     May 1:  31%
                              Trinity River Basin
  9 Deadfall Lakes            7,200	28-APR	 50.0	 24.5	49%	 33.1	 74%	
 10 Red Rock Mountain         6,700	30-APR	 50.5	 29.5	58%	 43.2	 68%	
 11 Bear Basin                6,500	30-APR	 43.0	 27.0	63%	 38.1	 71%	
 12 Shimmy Lake               6,400	01-MAY	 49.5	 27.5	56%	 49.5	 56%	
 16 Highland Lakes            6,030		Scheduled for measurement by Weaverville Ranger District
 17 Big Flat (Course)         5,100	03-MAY	  0.0	  0.0		 12.9	  0%	
                                                Basin Average Pct. of April 1:  54%
                                                                     May 1:  77%
                              Sacramento River Basin
 18 Mount Shasta              7,900	29-APR	116.5	 59.0	51%	 51.7	114%	
 19 Sand Flat (Course)        6,800	28-APR	 64.5	 32.5	50%	 43.1	 75%	
 22 Slate Creek               5,700	03-MAY	  0.0	  0.0		 29.5	  0%	
                                                Basin Average Pct. of April 1:  63%
                                                                     May 1:  88%
                              Mc Cloud River Basin
 23 Brewer Creek              6,250	28-APR	 33.0	 18.5	56%	 34.6	 53%	
 25 Stouts Meadow             5,400	02-MAY	  0.0	  0.0		 35.5	  0%	
                                                Basin Average Pct. of April 1:  27%
                                                                     May 1:  37%
                              Pit River Basin
 33 Thousand Lakes            6,500	02-MAY	 54.5	 28.5	52%	 32.2	 89%	
 35 Adin Mountain             6,200	02-MAY	  0.0	  0.0		 12.7	  0%	
343 New Manzanita Lake        5,900	30-APR	  0.0	  0.0		  9.1	  0%	
                                                Basin Average Pct. of April 1:  30%
                                                                     May 1:  41%
                              Feather River Basin
 47 Lower Lassen Peak         8,250	02-MAY	167.0	 82.5	49%	 78.1	106%	
361 Kettle Rock               7,300	27-APR	  8.0	  4.0	50%	 22.1	 18%	
 48 Mount Dyer 1              7,100	28-APR	 49.5	 23.0	46%	 26.2	 88%	
359 Grizzly Ridge             6,900	25-APR	 34.5	 17.0	49%	 28.9	 59%	
388 Pilot Peak (DWR)          6,800	26-APR	 41.0	 20.0	49%	 45.2	 44%	
279 Eureka Bowl               6,800		Scheduled for measurement by CA Dept of Water Resources, Beckwourth
280 Rowland Creek             6,700	25-APR	  8.5	  2.5	29%	 16.3	 15%	
 75 Church Meadows            6,700	26-APR	 36.5	 17.0	47%	 29.7	 57%	
360 Mount Hough               6,700	26-APR	 24.5	 12.0	49%	 29.3	 41%	
 53 Three Lakes               6,250	02-MAY	 30.5	 15.5	51%	 39.3	 39%	
 52 Eureka Lake               6,200		Scheduled for measurement by CA Dept of Water Resources, Beckwourth
 51 Harkness Flat             6,200	27-APR	 25.0	 13.5	54%	 26.9	 50%	
290 Mount Dyer 2              6,050	28-APR	  0.0	  0.0		 16.9	  0%	
 54 Mill Creek Flat           5,900	02-MAY	 31.5	 16.0	51%	 37.8	 42%	
353 Frenchman Cove            5,800	25-APR	  0.0	  0.0		  1.7	  0%	*
354 Antelope Ridge            5,650	27-APR	  0.0	  0.0		  2.7	  0%	*
355 Abbey                     5,650	25-APR	  0.0	  0.0		  9.0	  0%	
 49 Letterbox                 5,600	02-MAY	 35.0	 19.0	54%	 46.5	 41%	
 55 Mount Stover              5,600	27-APR	  0.0	  0.0		 13.2	  0%	
 56 Browns Camp               5,400	02-MAY	  0.0	  0.0		 22.3	  0%	
 58 Feather River Meadow      5,400	27-APR	  9.5	  5.0	53%	 22.4	 22%	
 59 Warner Creek              5,100	27-APR	  0.0	  0.0		 13.9	  0%	
434 Humbug Summit 2           4,850	28-APR	  0.0	  0.0		 14.1	  0%	
                                                Basin Average Pct. of April 1:  33%
                                                                     May 1:  46%
                              Yuba River Basin
 64 Webber Peak               7,800	02-MAY	 78.5	 38.0	48%	 41.1	 92%	
 65 Castle Creek 5            7,400	29-APR	 78.0	 39.0	50%	 48.6	 80%	
 67 Red Mountain              7,200	25-APR	 82.5	 39.0	47%	 51.2	 76%	
 66 Meadow Lake               7,200	26-APR	 89.5	 40.5	45%	 54.3	 75%	
 68 English Mountain          7,100		Scheduled for measurement by Nevada Irrigation District
 69 Donner Summit             6,900	25-APR	 42.5	 19.0	45%	 36.8	 52%	
 76 Furnace Flat              6,700	26-APR	 57.0	 26.0	46%	 47.4	 55%	
 74 Yuba Pass                 6,700	29-APR	 17.0	  8.5	50%	 27.6	 31%	
 77 Lake Fordyce              6,500	26-APR	  0.0	  0.0		 39.4	  0%	
 78 Findley Peak              6,500		Scheduled for measurement by Nevada Irrigation District
389 Robinson Cow Camp Snow    6,480	26-APR	 52.5	 25.5	49%	 42.5	 60%	
390 Sunnyside Meadow          6,300	26-APR	 81.5	 38.0	47%	 55.7	 68%	
 80 Cisco                     5,900	27-APR	  8.0	  4.0	50%	 27.6	 14%	
372 Chapman Creek             5,850	29-APR	 12.0	  6.0	50%	 23.0	 26%	
 83 Bowman Lake               5,650	02-MAY	  0.0	  0.0		 22.4	  0%	
391 Lexington                 5,600	28-APR	 22.0	 12.0	55%	 28.7	 42%	
277 Gibsonville               5,400	28-APR	  8.0	  4.0	50%	 26.7	 15%	
 85 Lake Spaulding            5,200	25-APR	  2.0	  1.0	50%	 20.8	  5%	
                                                Basin Average Pct. of April 1:  43%
                                                                     May 1:  60%
                              American River Basin
106 Upper Carson Pass         8,500	29-APR	 49.0	 23.5	48%	 34.1	 69%	
331 Lower Carson Pass         8,400	29-APR	 62.5	 31.0	50%	 37.5	 83%	
107 Caples Lake               8,000	29-APR	 43.0	 21.0	49%	 29.8	 70%	
365 Alpha                     7,600	27-APR	 34.5	 17.5	51%	 33.5	 52%	
338 Lost Corner Mountain      7,500	28-APR	 45.0	 21.0	47%	 35.7	 59%	
108 Echo Summit               7,450	29-APR	 37.0	 17.5	47%	 31.0	 56%	
110 Lake Audrain              7,300	29-APR	 39.0	 21.0	54%	 33.7	 62%	
109 Silver Lake               7,100	02-MAY	  1.5	  1.0	67%	 19.7	  5%	
316 Wrights Lake              6,900	28-APR	 33.5	 16.5	49%	 32.3	 51%	
113 PHillips                  6,800	29-APR	  4.5	  2.5	56%	 26.3	 10%	
320 Lyons Creek               6,700	27-APR	 43.0	 19.0	44%	 31.8	 60%	
115 Huysink                   6,600	28-APR	 47.5	 22.5	47%	 42.0	 54%	
289 Tamarack Flat             6,550	29-APR	 27.5	 12.0	44%	 27.8	 43%	
114 Wabena Meadows            6,300	27-APR	 36.5	 17.0	47%	 39.7	 43%	
369 Miranda Cabin             6,200	27-APR	 29.5	 14.5	49%	 37.7	 38%	
120 Onion Creek               6,100	02-MAY	  8.5	  3.5	41%	 19.2	 18%	
371 Diamond Crossing          6,050	27-APR	  3.5	  2.0	57%	 21.0	 10%	
122 Talbot Camp               5,750	27-APR	  1.0	  0.5	50%	 19.5	  3%	
322 Robbs Valley              5,600	30-APR	  0.0	  0.0		 15.4	  0%	
127 Ice House                 5,300	30-APR	  0.0	  0.0		  5.8	  0%	
                                                Basin Average Pct. of April 1:  39%
                                                                     May 1:  55%
                              Mokelumne River Basin
323 Highland Meadow           8,700	26-APR	 85.5	 44.0	51%	 46.3	 95%	
364 Tragedy Creek             8,150	03-MAY	 64.5	 33.5	52%	 44.3	 76%	
129 Blue Lakes                8,000	26-APR	 57.5	 27.5	48%	 35.0	 79%	
131 Wheeler Lake              7,800	26-APR	 88.5	 48.0	54%	 51.4	 93%	
132 Pacific Valley            7,500	26-APR	 44.0	 23.5	53%	 37.4	 63%	
133 Corral Flat               7,200	02-MAY	 49.5	 26.5	54%	 40.3	 66%	
363 Podesta                   7,200	03-MAY	 47.0	 25.0	53%	 43.6	 57%	
134 Bear Valley Ridge 1       6,700	26-APR	  0.0	  0.0		 24.2	  0%	
435 Lumberyard 2              6,500	27-APR	  0.0	  0.0		 16.7	  0%	
136 Hams Station              5,500	27-APR	  0.0	  0.0		  5.0	  0%	*
137 Antelope Springs          4,350	27-APR	  0.0	  0.0		  2.8	  0%	*
                                                Basin Average Pct. of April 1:  59%
                                                                     May 1:  72%
                              Stanislaus River Basin
345 Deadman Creek             9,250	28-APR	 64.5	 31.0	48%	 34.5	 90%	
344 Clark Fork Meadow         8,900	28-APR	 74.0	 35.5	48%	 39.2	 91%	
427 Gianelli Meadow           8,400	02-MAY	 86.5	 46.0	53%	 47.7	 96%	
138 Lower Relief Valley       8,100	28-APR	 58.0	 31.0	53%	 39.9	 78%	
139 Soda Creek Flat           7,800	28-APR	 16.5	  9.0	55%	 22.1	 41%	
384 Stanislaus Meadow         7,750	26-APR	 64.5	 35.0	54%	 45.6	 77%	
140 Eagle Meadow              7,500	28-APR	 16.0	  8.0	50%	 24.9	 32%	
142 Herring Creek             7,300	26-APR	 22.5	 12.0	53%	 27.6	 43%	
143 Relief Dam                7,250	28-APR	  7.5	  3.5	47%	 19.8	 18%	
416 Bloods Creek              7,200	28-APR	 31.5	 15.0	48%	 32.5	 46%	
373 Hells Kitchen             6,550	28-APR	  0.0	  0.0		 20.9	  0%	
145 Niagara Flat              6,500	26-APR	  7.0	  3.5	50%	 19.2	 18%	
386 Black Springs             6,500	28-APR	  0.5	  0.5	100%	 22.4	  2%	
                                                Basin Average Pct. of April 1:  49%
                                                                     May 1:  59%
                              Tuolumne River Basin
157 Dana Meadows              9,800	25-APR	 53.5	 22.5	42%	 30.7	 73%	
159 Bond Pass                 9,300	26-APR	 89.5	 45.0	50%	 43.9	103%	
368 New Grace Meadow          8,900	01-MAY	 80.5	 38.0	47%	 48.0	 79%	
161 Tuolumne Meadows          8,600	25-APR	 20.0	  9.5	48%	 22.9	 41%	
162 Horse Meadow              8,400	26-APR	 79.5	 39.5	50%	 45.9	 86%	
163 Wilma Lake                8,000	01-MAY	 69.0	 33.0	48%	 43.5	 76%	
165 Sachse Springs            7,900	26-APR	 21.5	 11.0	51%	 37.6	 29%	
164 Spotted Fawn              7,800	26-APR	 71.0	 34.0	48%	 44.8	 76%	
166 Huckleberry Lake          7,800	26-APR	 62.5	 30.0	48%	 41.2	 73%	
167 Paradise Meadow           7,650	30-APR	 60.0	 30.0	50%	 39.6	 76%	
348 Kerrick Corral            7,000	27-APR	  8.0	  4.0	50%	 23.7	 17%	
168 Upper Kibbie Ridge        6,700	26-APR	  0.0	  0.0		 18.4	  0%	
173 Lower Kibbie              6,700	26-APR	  0.0	  0.0		 25.0	  0%	
169 Vernon Lake               6,700	29-APR	  7.0	  3.5	50%	 21.9	 16%	
171 Beehive Meadow            6,500	29-APR	  0.0	  0.0		 23.5	  0%	
172 Bell Meadow               6,500	27-APR	  0.0	  0.0		 15.7	  0%	
                                                Basin Average Pct. of April 1:  47%
                                                                     May 1:  57%
                              Merced River Basin
176 Snow Flat                 8,700	24-APR	 70.5	 34.0	48%	 43.5	 78%	
177 Ostrander Lake            8,200	02-MAY	 36.0	 19.0	53%	 34.5	 55%	
178 Tenaya Lake               8,150	24-APR	 41.0	 19.5	48%	 32.4	 60%	
180 Peregoy Meadows           7,000	26-APR	 23.5	 10.5	45%	 29.0	 36%	
179 Gin Flat (Course)         7,000	29-APR	 22.0	  9.0	41%	 32.3	 28%	
                                                Basin Average Pct. of April 1:  51%
                                                                     May 1:  63%
                              San Joaquin River Basin
183 Piute Pass               11,300		Scheduled for measurement by CA Dept of Water Resources
276 Pioneer Basin            10,400	03-MAY	 59.0	 29.0	49%	 34.0	 85%	
185 Heart Lake               10,100	03-MAY	 50.0	 24.0	48%	 27.6	 87%	
187 Rose Marie               10,000	03-MAY	 45.0	 22.5	50%	 29.4	 77%	
191 Dutch Lake                9,100	03-MAY	 28.0	 14.5	52%	 28.1	 52%	
190 Kaiser Pass               9,100	25-APR	 57.5	 27.5	48%	 38.1	 72%	
193 Cora Lakes                8,400	28-APR	 34.5	 16.5	48%	 37.4	 44%	
440 Devil's Postpile          7,569	26-APR	 18.0	  8.0	44%			
196 Chilkoot Lake             7,450	28-APR	 29.0	 16.0	55%	 36.4	 44%	
197 Chilkoot Meadow           7,150	28-APR	 52.5	 26.5	50%	 37.3	 71%	
200 Clover Meadow             7,000	20-APR	 10.5	  5.0	48%	 23.5	 21%	
199 Huntington Lake           7,000	25-APR	 10.5	  5.0	48%	 20.0	 25%	
201 Jackass Meadow            6,950	27-APR	  4.5	  3.0	67%	 25.4	 12%	
204 Poison Meadow             6,800	28-APR	  7.5	  3.5	47%	 25.5	 14%	
202 Chiquito Creek            6,800	27-APR	  0.0	  0.0		 22.4	  0%	
                                                Basin Average Pct. of April 1:  46%
                                                                     May 1:  57%
                              Kings River Basin
222 Bishop Pass              11,200	24-APR	 56.5	 23.5	42%	 34.9	 67%	
223 Blackcap Basin           10,300	02-MAY	 61.0	 28.5	47%	 33.9	 84%	
396 Rattlesnake Creek Ba      9,900	02-MAY	 34.0	 15.5	46%	 36.4	 43%	
225 Beard Meadow              9,800	02-MAY	 43.0	 21.5	50%	 33.3	 65%	
224 Upper Burnt Corral        9,700	26-APR	 64.0	 29.0	45%	 37.3	 78%	
229 Round Corral              9,000	02-MAY	 38.5	 18.0	47%	 36.1	 50%	
227 Woodchuck Meadow          8,800	02-MAY	 27.5	 13.0	47%	 32.0	 41%	
232 Long Meadow (Kings R)     8,500	26-APR	 29.0	 13.5	47%	 28.9	 47%	
426 Courtright                8,350	02-MAY	 29.5	 13.0	44%	 30.4	 43%	
233 Statum Meadow             8,300	02-MAY	  9.5	  5.0	53%	 33.2	 15%	
230 Helms Meadow              8,250	26-APR	 18.0	  8.5	47%	 26.6	 32%	
234 Post Corral Meadow        8,200	26-APR	 20.5	  9.5	46%	 25.9	 37%	
308 Dodsons Meadow            8,050	26-APR	 24.5	 11.0	45%	 29.2	 38%	
438 Ridge Trail               7,500	01-MAY	  0.0	  0.0		 13.0	  0%	*
239 Fred Meadow               6,950	02-MAY	  0.0	  0.0		 20.4	  0%	
                                                Basin Average Pct. of April 1:  46%
                                                                     May 1:  58%
                              Kaweah River Basin
292 Farewell Gap              9,500	30-APR	 54.5	 26.0	48%	 35.0	 74%	
243 Panther Meadow            8,600	25-APR	 61.5	 30.5	50%	 37.2	 82%	
244 Hockett Meadows           8,500	03-MAY	 27.5	 14.5	53%	 27.3	 53%	
245 Mineral King              8,000	30-APR	  4.0	  2.0	50%	 20.9	 10%	
246 Giant Forest              6,400	30-APR	  0.0	  0.0		 15.2	  0%	
                                                Basin Average Pct. of April 1:  44%
                                                                     May 1:  56%
                              Tule River Basin
247 Quaking Aspen             7,000	28-APR	  0.0	  0.0		 12.0	  0%	
248 Old Enterprise Mill       6,600	01-MAY	  0.0	  0.0		 13.9	  0%	
                                                Basin Average Pct. of April 1:   0%
                                                                     May 1:   0%
                              Kern River Basin
250 Bighorn Plateau          11,350	01-MAY	 39.0	 17.5	45%	 22.4	 78%	
251 Cottonwood Pass          11,050	25-APR	 17.0	  6.0	35%	 15.3	 39%	
252 Siberian Pass            10,900	28-APR	 34.5	 13.0	38%	 19.2	 68%	
253 Crabtree Meadow          10,700		Scheduled for measurement by CA Dept of Water Resources
275 Sandy Meadows            10,650	01-MAY	 11.0	  4.5	41%	 18.9	 24%	
255 Tyndall Creek            10,650	02-MAY	 22.0	  9.5	43%	 19.2	 49%	
254 Guyot Flat               10,650		Scheduled for measurement by CA Dept of Water Resources
257 Big Whitney Meadow        9,750	25-APR	 16.0	  7.0	44%	 17.1	 41%	
256 Rock Creek                9,600		Scheduled for measurement by CA Dept of Water Resources
258 Round Meadow              9,000	26-APR	  0.0	  0.0		 24.5	  0%	
259 Ramshaw Meadows           8,700	27-APR	  0.0	  0.0		 12.3	  0%	
260 Little Whitney Meadow     8,500	26-APR	  0.0	  0.0		 14.2	  0%	
264 Quinn Ranger Station      8,350	02-MAY	  0.0	  0.0		 19.1	  0%	
249 Dead Horse Meadow         7,300	26-APR	  0.0	  0.0		 10.8	  0%	
                                                Basin Average Pct. of April 1:  27%
                                                                     May 1:  35%
                              Susan River Basin
 45 Silver Lake Meadows       6,450	27-APR	 23.5	 12.0	51%	 27.9	 43%	
 46 Norvell Flat              5,700	27-APR	  0.0	  0.0		 14.0	  0%	
                                                Basin Average Pct. of April 1:  22%
                                                                     May 1:  25%
                              Truckee River Basin
 89 Webber Lake               7,000	02-MAY	 44.0	 19.5	44%	 31.8	 61%	
                                                Basin Average Pct. of April 1:  61%
                                                                     May 1:  72%
                              Walker River Basin
377 Virginia Lakes Ridge      9,300	25-APR	 29.5	 11.0	37%	 19.5	 56%	
152 Sonora Pass               8,750	28-APR	 28.5	 12.5	44%	 24.5	 51%	
                                                Basin Average Pct. of April 1:  54%
                                                                     May 1:  63%
                              Owens River Basin
284 Bishop Lake              11,300	24-APR	 42.5	 17.5	41%	 22.5	 78%	
212 East Piute Pass          10,800	30-APR	 27.0	 10.5	39%	 16.4	 64%	
213 Sawmill                  10,200	24-APR	 14.0	  8.0	57%	 19.7	 41%	
221 Cottonwood Lakes 1       10,150		Scheduled for measurement by City of Los Angeles; Dept of Water and Power
214 North Lake                9,300	30-APR	  0.0	  0.0		 10.8	  0%	
205 Mammoth Pass (Ladwp)      9,300		Scheduled for measurement by City of Los Angeles; Dept of Water and Power
                                                Basin Average Pct. of April 1:  46%
                                                                     May 1:  53%

Summary of Snow Surveys

RegionNo. BasinsNo. CoursesAvg WC% Average
April 1
% Average
May 1
North Coast 2 9 15.1" 40% 57%
Sacramento 6 65 14.6" 37% 52%
San Joaquin Valley 5 56 18.6" 49% 60%
Tulare Lake 3 32 10.6" 36% 46%
North Lahontan 3 5 11.0" 42% 50%
South Lahontan 1 4 9.0" 46% 53%
Statewide Average (weighted) 42% 54%

* 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.


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