Mammoth Mountain Ski Patrol 2013-14 Storm Summary - Sesame Snow Study Site 9,000' (2,743m)
Date	HN24(")	Base Depth	SWE	Rain	% Density	StormSnow "	Storm SWE "	Season Snow	Season SWE	Season Precip	Base Hi Temp	Base Lo Temp	Notes
10/10/2013	2.0	2.0	0.25	Y		1.0	0.03	2.0	0.03	0.03	29	25	NOT sure how much rain. Rain snow mix  SWE IS COMBINED H2O
10/28/2013	10.0	10.0	0.90		9	10.0	0.90	12.0	0.93	0.93	28	20
OCT	12.0
11/20/2013	4.0	5.5	0.40		10						40	30
11/21/2013	3.0	6.5	0.30		10						32	24
11/22/2013	4.5	10.0	0.35		7.5						24	12
11/23/2013	1.0	11.0	0.08		8	12.5	1.34	24.5	2.06	2.06	20	13
NOV	12.5
12/3/2013	0.5	8.5	0.01		2						44	25
12/4/2013	6.0	15.0	1.28		21	6.5	1.29	31.0	3.35	3.35	28	2
12/7/2013	10.0	25.0	0.82		8	10.0	0.82	41.0	4.17	4.17	19	8
12/19/2013	0.5	15.5	0.07		14						40	23
12/20/2013	1.0	17.0	0.07		7	1.5	0.14	42.5	4.45	4.45	23	8
DEC	18.0
1/12/2014	0.5	14.5	0.01		2	0.5	0.01	43.0	4.46	4.46	37	23
1/24/2014	0.5	13.0	0.01		2	0.5	0.01	43.5	4.47	4.47	29	20
1/30/2014	3.0	16.0	0.65	Y	22						43	28
1/31/2014	9.5	25.5	1.42		15						26	14
JAN	13.5
2/1/2014	1.0	26.5	0.07		7	13.5	2.14	57.0	6.61	6.61	20	5
2/3/2014	4.0	26.0	0.19		19	4.0	0.19	63.0	6.80	6.80	20	14
2/6/2014	1.0	25.0	0.07		5						29	20
2/7/2014	1.5	26.0	0.19		11	2.5	0.26	65.5	7.06	7.06	26	19
2/8/2014	7.5	29.0	0.48		7						29	19
2/9/2014	9.5	35.0	1.19	Y	13						32	28	Rain was intermettent and level was around top of Ch 16
2/10/2014	6.0	40.0	0.99		17	23.0	2.66	88.5	9.72	9.72	32	27
2/16/2014	5.5	39.0	0.84		15	5.5	0.84	94.0	10.56	10.56	43	26
Date	HN24(")	Base Depth	SWE	Rain	% Density	StormSnow "	Storm SWE "	Season Snow	Season SWE	Season Precip	Base Hi Temp	Base Lo Temp	Notes
2/27/2014	12.5	43.0	1.59		13						35	22
2/28/2014	2.0	42.0	0.39		19	14.5	1.98	108.5	12.54	12.54	28	22
FEB	36.0
3/1/2014	23.5	65.0	2.75		12	23.5	2.75	132.0	15.29	15.29	28	20	Most of snow fell during day on 2/28.  Had a period of 4"/hr snowfall
3/2/2014	1.5	63.0	0.10		6	1.5	0.10	133.5	15.39	15.39	31	20
3/4/2014	1.0	61.0	0.14		14	1.0	0.14	134.5	15.53	15.53	29	25
3/6/2014	1.0	57.0	0.16		16						44	29	Had some rain during the day
3/7/2014	0.5	57.0	0.09	Y	18	1.5	0.25	136.0	15.78	15.94	34	16
3/26/2014	4.0	40.0	0.54		13.5						39	23
3/27/2014	5.0	46.0	0.37		7.5						23	19
3/28/2014	0.5	45.0	0.01		2	9.5	0.92	145.5	16.70	16.86	28	18
3/30/2014	8.0	49.5	0.83		10						34.5	18
MAR
4/1/2014	16.0	60.0	1.50		9	16.0	1.50	161.5	18.20	18.36	23	11	minor wind impact on lower hill.  Good cornice development up top
4/2/2014	3.0	60.0	0.18		6	3.0	0.18	164.5	18.38	18.54	18	11
4/25/2014	18.0	31.0	2.27		12.5						45	26	4"/.59swe before opening and 14/1.68swe during operations
4/26/2014	6.0	39.5	0.94		15	24.0	3.21	188.5	21.59	21.75	27	15
5/5/2014	0.5	3.5	0.04		8						34	22
5/6/2014	1.5	5.0	0.22		14.5	2.0	0.26	190.5	21.85	22.01	30	22
5/20/2014	1.5	1.5	0.12		8						32	27
5/21/2014	2.5	2.5	0.27		11						42	26
5/22/2104	0.5	1.0	0.04		8	4.5	0.43	195.0	22.28	22.44	30	41
Units for Base Depth, New Snow, Storm Total, and Season Snowfall are in inches.
SWE≡Snow Water Equivalent, the amount of water produced from melting a known volume of snow.  Measured in inches of H2O.
Season Precip includes SWE and rain since October 1st.
Units for 24 Hour Base Hi Temp and Base Lo Temp are degrees Fahrenheit.
Line breaks indicate clearing between storms, despite occasional consecutive days.
All data subject to revision.