Colorado SNOTEL Snowpack Update Report

Colorado SNOTEL Snowpack Update Report

Based on Mountain Data from NRCS SNOTEL Sites

**Provisional data, subject to revision**

Data based on the first reading of the day (typically 00:00) for Thursday, November 21, 2024

Basin Site Name	Elev (ft)	Snow Water Equivalent				Percent of
Basin Site Name	Elev (ft)	Current (in)	Today's Median (in)	Median Peak (in)	Median Peak Date	Today's Median	Median Peak
GUNNISON RIVER BASIN
Butte	10200	2.5	1.8	13.7	Apr 08	139	18
Castle Peak	11500	5.0	N/A	N/A	N/A	*	*
Cochetopa Pass	10061	2.0	0.6₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	333	42
Columbine Pass	9171	2.7	1.6	18.0	Mar 26	169*	15*
Idarado	9812	2.2	1.9	14.4	Apr 06	116	15
Mc Clure Pass	8774	2.7	2.0	16.6	Apr 04	135	16
Mesa Lakes	10168	3.1	2.4	19.0	Apr 15	129	16
Overland Res.	9893	2.7	1.8	12.4	Apr 05	150	22
Park Cone	9621	1.8	1.5	10.4	Apr 09	120	17
Park Reservoir	9987	4.0	4.0	27.4	Apr 26	100	15
Porphyry Creek	10788	3.6	2.6	17.0	Apr 15	138	21
Rat Creek	11680	4.8	N/A	N/A	N/A	*	*
Red Mountain Pass	11080	6.1	3.6	25.0	Apr 25	169	24
Sargents Mesa	11499	2.0	1.3₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	154	18
Schofield Pass	10653	4.6	5.2	35.1	Apr 19	88	13
Slumgullion	11560	4.8	3.2	15.0	Apr 21	150	32
Upper Taylor	10717	2.4	1.7₍₁₁₎	13.6₍₁₁₎	Apr 03₍₁₁₎	141	18
Wager Gulch	11132	4.4	N/A	N/A	N/A	*	*
Basin Index (%)		134
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10976	4.8	5.0₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	96	19
Bear River	9112	2.6	1.8₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	144	22
Beaver Ck Village	8565	2.5	1.5₍₁₇₎	11.7₍₁₇₎	Apr 02₍₁₇₎	167	21
Berthoud Summit	11314	3.1	2.8	23.2	May 03	111	13
Bison Lake	10964	4.1	4.6	26.9	Apr 29	89	15
Buffalo Park	9249	2.2	2.6₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	85	15
Castle Peak	11500	5.0	N/A	N/A	N/A	*	*
Chapman Tunnel	10100	3.0	2.4₍₁₃₎	15.4₍₁₃₎	Apr 19₍₁₃₎	125	19
Columbine	9167	2.6	3.2	24.6	Apr 05	81	11
Copper Mountain	10523	3.3	2.4	17.4	Apr 26	138	19
Elliot Ridge	10549	3.1	2.7₍₁₁₎	23.2₍₁₁₎	Apr 25₍₁₁₎	115	13
Fool Creek	11156	3.7	N/A	N/A	N/A	*	*
Fremont Pass	11326	4.0	3.4	20.8	May 11	118	19
Grizzly Peak	11139	3.2	3.2	19.6	Apr 21	100	16
High Lonesome	10638	2.7	N/A	N/A	N/A	*	*
Hoosier Pass	11611	-M	3.4	17.3	Apr 27	*	*
Independence Pass	10598	3.3	3.2	17.4	Apr 18	103	19
Ivanhoe	10541	3.6	2.8₍₂₉₎	17.2₍₂₉₎	Apr 26₍₂₉₎	129	21
Jones Pass	10426	2.8	2.4₍₂₁₎	16.8₍₂₁₎	Apr 27₍₂₁₎	117	17
Kiln	9624	2.3	2.0	13.2	Apr 07	115	17
Lake Irene	10682	2.7	3.6	25.4	Apr 26	75	11
Lynx Pass	8919	1.7	1.8	11.5	Apr 04	94	15
Mc Clure Pass	8774	2.7	2.0	16.6	Apr 04	135	16
Mccoy Park	9516	2.2	1.7₍₁₈₎	14.6₍₁₈₎	Apr 07₍₁₈₎	129	15
Mesa Lakes	10168	3.1	2.4	19.0	Apr 15	129	16
Middle Fork Camp	8969	1.6	1.8₍₁₉₎	11.5₍₁₉₎	Apr 04₍₁₉₎	89	14
Nast Lake	8731	1.7	0.7	8.8	Mar 28	243*	19*
North Lost Trail	9219	2.7	2.2	17.4	Apr 04	123	16
Overland Res.	9893	2.7	1.8	12.4	Apr 05	150	22
Park Reservoir	9987	4.0	4.0	27.4	Apr 26	100	15
Phantom Valley	9045	1.0	1.5	10.4	Mar 30	67	10
Schofield Pass	10653	4.6	5.2	35.1	Apr 19	88	13
Stillwater Creek	8880	0.1	N/A	N/A	N/A	*	*
Summit Ranch	9371	2.2	1.7	11.4	Apr 09	129	19
Vail Mountain	10310	2.9	3.1	20.8	Apr 27	94	14
Willow Creek Pass	9523	3.2	3.0	16.4	May 03	107	20
Basin Index (%)		108
SOUTH PLATTE RIVER BASIN
Bear Lake	9522	2.3	2.4	19.8	Apr 27	96	12
Berthoud Summit	11314	3.1	2.8	23.2	May 03	111	13
Black Mountain	8980	2.1	2.3₍₁₀₎	12.5₍₁₀₎	Apr 17₍₁₀₎	91	17
Buckskin Joe	11166	2.3	1.8₍₂₁₎	12.6₍₂₁₎	May 02₍₂₁₎	128	18
Copeland Lake	8555	1.3	0.5	6.0	Mar 08	260*	22*
Deadman Hill	10239	3.0	4.0	21.8	May 04	75	14
Echo Lake	10694	3.1	1.4₍₂₂₎	9.0₍₂₂₎	Apr 29₍₂₂₎	221	34
Hoosier Pass	11611	-M	3.4	17.3	Apr 27	*	*
Hourglass Lake	9417	3.2	2.0₍₁₂₎	13.0₍₁₂₎	Apr 19₍₁₂₎	160	25
Jackwhacker Gulch	11054	1.6	2.2₍₂₂₎	14.4₍₂₂₎	Apr 25₍₂₂₎	73	11
Joe Wright	10158	3.8	4.4	24.0	May 05	86	16
Lake Eldora	9728	1.9	1.9	14.0	Apr 09	100	14
Lake Irene	10682	2.7	3.6	25.4	Apr 26	75	11
Long Draw Resv	10008	2.2	3.5₍₁₁₎	18.3₍₁₁₎	Apr 27₍₁₁₎	63	12
Loveland Basin	11427	3.6	4.0₍₂₈₎	24.4₍₂₈₎	May 02₍₂₈₎	90	15
Michigan Creek	10702	1.4	1.9₍₂₂₎	13.2₍₂₂₎	Apr 26₍₂₂₎	74	11
Niwot	9979	2.7	2.2	15.0	Apr 19	123	18
Rough And Tumble	10432	2.8	1.0₍₂₂₎	8.3₍₂₂₎	Apr 24₍₂₂₎	280	34
Sawtooth	9676	3.9	N/A	N/A	N/A	*	*
University Camp	10360	2.6	2.6	19.9	May 07	100	13
Wild Basin	9439	2.8	2.7₍₁₅₎	18.6₍₁₅₎	Apr 25₍₁₅₎	104	15
Willow Park	10732	2.6	3.4	21.0	Apr 29	76	12
Basin Index (%)		101
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10976	4.8	5.0₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	96	19
Blackhall Mtn	9839	3.4	5.6₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	61	10
Columbine	9167	2.6	3.2	24.6	Apr 05	81	11
Deadman Hill	10239	3.0	4.0	21.8	May 04	75	14
Joe Wright	10158	3.8	4.4	24.0	May 05	86	16
Never Summer	10323	3.6	4.6₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	78	15
Rawah	9069	2.2	2.2₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	100	18
Roach	9740	2.8	3.4	17.5	Apr 25	82	16
Tower	10620	4.6	8.1	49.0	May 07	57	9
Whiskey Park	9020	2.9	3.8	30.8	Apr 17	76	9
Willow Creek Pass	9523	3.2	3.0	16.4	May 03	107	20
Zirkel	9338	2.1	4.0₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	52	7
Basin Index (%)		76
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7498	0.8	1.0	12.6	Mar 27	80*	6*
Bear River	9112	2.6	1.8₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	144	22
Bison Lake	10964	4.1	4.6	26.9	Apr 29	89	15
Buffalo Park	9249	2.2	2.6₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	85	15
Burro Mountain	9317	2.9	1.9	16.6	Apr 13	153	17
Columbine	9167	2.6	3.2	24.6	Apr 05	81	11
Crosho	8973	2.5	1.7	12.6	Apr 05	147	20
Divide Peak	8730	2.1	3.0	21.4	Apr 15	70	10
Dry Lake	8271	1.8	2.8	22.3	Apr 04	64	8
Elk River	8739	1.9	2.2	19.4	Apr 05	86	10
Elkhead Divide	8800	1.8	N/A	N/A	N/A	*	*
Little Snake River	8928	1.9	3.0₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	63	7
Lost Dog	9327	1.8	3.0₍₂₂₎	24.5₍₂₂₎	Apr 10₍₂₂₎	60	7
Lynx Pass	8919	1.7	1.8	11.5	Apr 04	94	15
Old Battle	9860	3.5	5.9	38.8	May 05	59	9
Rabbit Ears	9411	2.5	3.6	27.9	Apr 21	69	9
Ripple Creek	10350	4.5	4.4	29.3	Apr 25	102	15
Sage Creek Basin	7850	1.7	1.6₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	106	11
Sandstone RS	8152	1.5	1.2	14.2	Apr 05	125*	11*
Tower	10620	4.6	8.1	49.0	May 07	57	9
Trapper Lake	9759	1.6	N/A	N/A	N/A	*	*
Whiskey Park	9020	2.9	3.8	30.8	Apr 17	76	9
Basin Index (%)		82
ARKANSAS RIVER BASIN
Apishapa	10027	2.0	0.4	7.6	Mar 16	500*	26*
Brumley	10594	2.2	2.0	11.8	Apr 19	110	19
Fremont Pass	11326	4.0	3.4	20.8	May 11	118	19
Glen Cove	11391	2.6	0.6₍₁₆₎	5.7₍₁₆₎	Apr 23₍₁₆₎	433	46
Hayden Pass	10699	5.9	1.8₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	328	36
Medano Pass	9668	2.0	0.3₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	667*	27*
Porphyry Creek	10788	3.6	2.6	17.0	Apr 15	138	21
Saint Elmo	10450	3.1	2.0₍₁₃₎	11.5₍₁₃₎	Apr 09₍₁₃₎	155	27
South Colony	10868	5.4	4.0₍₂₉₎	20.9₍₂₉₎	Apr 23₍₂₉₎	135	26
Ute Creek	10734	3.1	1.6₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	194	25
Whiskey Ck	10290	1.7	1.3	11.1	Apr 01	131	15
Basin Index (%)		178
UPPER RIO GRANDE BASIN
Beartown	11600	7.1	3.4	23.2	Apr 17	209	31
Cochetopa Pass	10061	2.0	0.6₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	333	42
Culebra #2	10562	3.0	1.9	14.0	Apr 05	158	21
Cumbres Trestle	10035	2.5	3.8	26.2	Apr 06	66	10
Elwood Pass	11680	5.3	N/A	N/A	N/A	*	*
Grayback	11626	3.4	N/A	N/A	N/A	*	*
Hayden Pass	10699	5.9	1.8₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	328	36
Lily Pond	11069	2.9	2.3	14.8	Apr 04	126	20
Medano Pass	9668	2.0	0.3₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	667*	27*
Middle Creek	11269	5.9	3.2	19.2	Apr 15	184	31
Moon Pass	11128	2.8	0.8₍₁₂₎	6.8₍₁₂₎	Apr 08₍₁₂₎	350	41
North Costilla	10598	1.0	1.0	7.0	Mar 20	100	14
Rat Creek	11680	4.8	N/A	N/A	N/A	*	*
San Antonio Sink	9143	2.1	N/A	N/A	N/A	*	*
Sargents Mesa	11499	2.0	1.3₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	154	18
Shuree	10092	1.8	0.5₍₁₀₎	6.0₍₁₀₎	Mar 08₍₁₀₎	360*	30*
Slumgullion	11560	4.8	3.2	15.0	Apr 21	150	32
Trinchera	10922	3.6	1.9	11.2	Apr 05	189	32
Upper Rio Grande	9379	1.8	0.6	6.6	Mar 18	300*	27*
Ute Creek	10734	3.1	1.6₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	194	25
Wager Gulch	11132	4.4	N/A	N/A	N/A	*	*
Wolf Creek Summit	10957	6.2	6.2	35.5	Apr 29	100	17
Basin Index (%)		170
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11600	7.1	3.4	23.2	Apr 17	209	31
Black Mesa	11564	4.6	N/A	N/A	N/A	*	*
Cascade	8880	-M	0.6	12.7	Mar 10	*	*
Cascade #2	9012	1.0	0.8	10.4	Mar 06	125*	10*
Columbine Pass	9171	2.7	1.6	18.0	Mar 26	169*	15*
Columbus Basin	10781	5.7	3.4₍₂₆₎	25.8₍₂₆₎	Apr 17₍₂₆₎	168	22
El Diente Peak	10217	0.6	1.6	14.6	Apr 04	38	4
Elwood Pass	11680	5.3	N/A	N/A	N/A	*	*
Lizard Head Pass	10193	3.3	2.5	15.2	Apr 05	132	22
Lone Cone	9755	2.0	2.6	15.2	Apr 01	77	13
Mancos	10044	0.0	1.1₍₂₆₎	16.3₍₂₆₎	Mar 23₍₂₆₎	0*	0*
Mineral Creek	10046	3.3	1.9	15.6	Apr 09	174	21
Molas Lake	10631	4.2	2.4	22.0	Apr 11	175	19
Red Mountain Pass	11080	6.1	3.6	25.0	Apr 25	169	24
Scotch Creek	9195	2.5	1.0	12.0	Mar 18	250*	21*
Sharkstooth	10747	2.8	1.8₍₁₆₎	18.8₍₁₆₎	Apr 12₍₁₆₎	156*	15*
Spud Mountain	10674	3.6	2.8	25.6	Apr 04	129	14
Stump Lakes	11248	5.6	3.3	18.8	Apr 22	170	30
Upper San Juan	10140	2.9	3.2	29.7	Apr 09	91	10
Vallecito	10782	2.7	1.4	14.8	Apr 05	193*	18*
Weminuche Creek	10749	4.0	1.8₍₁₀₎	16.4₍₁₀₎	Mar 28₍₁₀₎	222	24
Wolf Creek Summit	10957	6.2	6.2	35.5	Apr 29	100	17
Basin Index (%)		143

-M = Missing data.
* = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

The snow water equivalent percent of median (or average) represents the current snow water
equivalent found at selected SNOTEL sites in or near the basin compared to the median (or average) value
for those sites on this day.

The snow water equivalent percent of median (or average) peak represents the current
snow water equivalent at selected SNOTEL sites in or near the basin compared to the median (or average)
of the maximum seasonal values observed each water year for those sites.

Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1991-2020.

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 or average for the day is less than 10% of the maximum median or average value for the year.

* Basin - More than half of the stations for a basin with normals report missing or invalid data.

The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.