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, January 16, 2025

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	10190	7.8	6.8	13.7	Apr 08	115	57
Castle Peak	11500	12.2	N/A	N/A	N/A	*	*
Cochetopa Pass	10020	3.3	2.6₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	127	69
Columbine Pass	9160	7.0	8.3	18.0	Mar 26	84	39
Idarado	9780	6.4	6.4	14.4	Apr 06	100	44
Mc Clure Pass	8760	6.8	8.2	16.6	Apr 04	83	41
Mesa Lakes	10160	6.7	8.2	19.0	Apr 15	82	35
Overland Res.	9890	5.1	5.8	12.4	Apr 05	88	41
Park Cone	9600	5.3	4.8	10.4	Apr 09	110	51
Park Reservoir	9990	8.2	12.0	27.4	Apr 26	68	30
Porphyry Creek	10790	11.2	7.2	17.0	Apr 15	156	66
Rat Creek	11680	7.8	N/A	N/A	N/A	*	*
Red Mountain Pass	11050	11.6	11.0	25.0	Apr 25	105	46
Sargents Mesa	11490	5.1	5.4₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	94	45
Schofield Pass	10640	13.4	14.7	35.1	Apr 19	91	38
Slumgullion	11560	7.6	7.4	15.0	Apr 21	103	51
Upper Taylor	10710	7.1	6.4₍₁₁₎	13.6₍₁₁₎	Apr 03₍₁₁₎	111	52
Wager Gulch	11110	7.3	N/A	N/A	N/A	*	*
Basin Index (%)		98
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10960	11.1	11.4₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	97	44
Bear River	9100	5.6	5.8₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	97	47
Beaver Ck Village	8530	6.7	6.4₍₁₇₎	11.7₍₁₇₎	Apr 02₍₁₇₎	105	57
Berthoud Summit	11300	10.6	8.8	23.2	May 03	120	46
Bison Lake	10950	9.6	12.0	26.9	Apr 29	80	36
Buffalo Park	9240	7.0	6.8₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	103	47
Castle Peak	11500	12.2	N/A	N/A	N/A	*	*
Chapman Tunnel	10090	7.7	7.5₍₁₃₎	15.4₍₁₃₎	Apr 19₍₁₃₎	103	50
Columbine	9170	12.7	11.8	24.6	Apr 05	108	52
Copper Mountain	10500	9.5	7.3	17.4	Apr 26	130	55
Elliot Ridge	10550	10.8	8.7₍₁₁₎	23.2₍₁₁₎	Apr 25₍₁₁₎	124	47
Fool Creek	11130	10.3	N/A	N/A	N/A	*	*
Fremont Pass	11310	10.0	8.2	20.8	May 11	122	48
Grizzly Peak	11110	10.4	8.4	19.6	Apr 21	124	53
High Lonesome	10630	9.7	N/A	N/A	N/A	*	*
Hoosier Pass	11600	8.7	8.0	17.3	Apr 27	109	50
Independence Pass	10570	8.9	8.4	17.4	Apr 18	106	51
Ivanhoe	10540	9.4	7.2₍₂₉₎	17.2₍₂₉₎	Apr 26₍₂₉₎	131	55
Jones Pass	10420	8.0	7.9₍₂₁₎	16.8₍₂₁₎	Apr 27₍₂₁₎	101	48
Kiln	9610	6.7	6.2	13.2	Apr 07	108	51
Lake Irene	10680	11.2	11.7	25.4	Apr 26	96	44
Lynx Pass	8910	5.5	5.6	11.5	Apr 04	98	48
Mc Clure Pass	8760	6.8	8.2	16.6	Apr 04	83	41
Mccoy Park	9500	7.4	7.3₍₁₈₎	14.6₍₁₈₎	Apr 07₍₁₈₎	101	51
Mesa Lakes	10160	6.7	8.2	19.0	Apr 15	82	35
Middle Fork Camp	8960	5.3	5.9₍₁₉₎	11.5₍₁₉₎	Apr 04₍₁₉₎	90	46
Nast Lake	8710	5.1	4.1	8.8	Mar 28	124	58
North Lost Trail	9190	7.9	7.2	17.4	Apr 04	110	45
Overland Res.	9890	5.1	5.8	12.4	Apr 05	88	41
Park Reservoir	9990	8.2	12.0	27.4	Apr 26	68	30
Phantom Valley	9030	5.2	5.2	10.4	Mar 30	100	50
Schofield Pass	10640	13.4	14.7	35.1	Apr 19	91	38
Stillwater Creek	8760	3.4	N/A	N/A	N/A	*	*
Summit Ranch	9350	6.3	5.6	11.4	Apr 09	112	55
Vail Mountain	10290	8.5	9.0	20.8	Apr 27	94	41
Willow Creek Pass	9520	6.1	6.8	16.4	May 03	90	37
Basin Index (%)		102
SOUTH PLATTE RIVER BASIN
Bear Lake	9490	6.6	7.8	19.8	Apr 27	85	33
Berthoud Summit	11300	10.6	8.8	23.2	May 03	120	46
Black Mountain	8950	4.3	5.6₍₁₀₎	12.5₍₁₀₎	Apr 17₍₁₀₎	77	34
Buckskin Joe	11160	5.3	5.4₍₂₁₎	12.6₍₂₁₎	May 02₍₂₁₎	98	42
Copeland Lake	8570	2.9	3.0	6.0	Mar 08	97	48
Deadman Hill	10240	8.8	9.2	21.8	May 04	96	40
Echo Lake	10660	4.2	3.0₍₂₂₎	9.0₍₂₂₎	Apr 29₍₂₂₎	140	47
Hoosier Pass	11600	8.7	8.0	17.3	Apr 27	109	50
Hourglass Lake	9380	6.7	5.7₍₁₂₎	13.0₍₁₂₎	Apr 19₍₁₂₎	118	52
Jackwhacker Gulch	11030	6.0	5.8₍₂₂₎	14.4₍₂₂₎	Apr 25₍₂₂₎	103	42
Joe Wright	10140	10.4	9.8	24.0	May 05	106	43
Lake Eldora	9700	6.0	5.8	14.0	Apr 09	103	43
Lake Irene	10680	11.2	11.7	25.4	Apr 26	96	44
Long Draw Resv	9990	7.7	8.6₍₁₁₎	18.3₍₁₁₎	Apr 27₍₁₁₎	90	42
Loveland Basin	11410	9.2	9.2₍₂₈₎	24.4₍₂₈₎	May 02₍₂₈₎	100	38
Michigan Creek	10700	5.5	5.4₍₂₂₎	13.2₍₂₂₎	Apr 26₍₂₂₎	102	42
Niwot	9940	6.4	6.0	15.0	Apr 19	107	43
Rough And Tumble	10420	4.3	2.9₍₂₂₎	8.3₍₂₂₎	Apr 24₍₂₂₎	148	52
Sawtooth	9640	-M	N/A	N/A	N/A	*	*
University Camp	10330	7.2	6.8	19.9	May 07	106	36
Wild Basin	9410	6.9	7.1₍₁₅₎	18.6₍₁₅₎	Apr 25₍₁₅₎	97	37
Willow Park	10710	8.3	8.4	21.0	Apr 29	99	40
Basin Index (%)		102
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10960	11.1	11.4₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	97	44
Blackhall Mtn	9830	13.9	13.9₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	100	40
Columbine	9170	12.7	11.8	24.6	Apr 05	108	52
Deadman Hill	10240	8.8	9.2	21.8	May 04	96	40
Joe Wright	10140	10.4	9.8	24.0	May 05	106	43
Never Summer	10300	9.0	10.2₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	88	38
Rawah	9100	5.8	6.1₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	95	48
Roach	9710	6.7	8.3	17.5	Apr 25	81	38
Tower	10610	22.1	21.0	49.0	May 07	105	45
Whiskey Park	8950	13.5	12.8	30.8	Apr 17	105	44
Willow Creek Pass	9520	6.1	6.8	16.4	May 03	90	37
Zirkel	9320	10.9	14.8₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	74	38
Basin Index (%)		96
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7460	6.3	5.6	12.6	Mar 27	112	50
Bear River	9100	5.6	5.8₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	97	47
Bison Lake	10950	9.6	12.0	26.9	Apr 29	80	36
Buffalo Park	9240	7.0	6.8₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	103	47
Burro Mountain	9290	7.7	7.9	16.6	Apr 13	97	46
Columbine	9170	12.7	11.8	24.6	Apr 05	108	52
Crosho	8960	6.8	6.5	12.6	Apr 05	105	54
Divide Peak	8700	9.0	9.8	21.4	Apr 15	92	42
Dry Lake	8240	11.6	10.5	22.3	Apr 04	110	52
Elk River	8710	8.3	8.6	19.4	Apr 05	97	43
Elkhead Divide	8780	8.1	N/A	N/A	N/A	*	*
Little Snake River	8930	11.6	13.4₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	87	40
Lost Dog	9340	9.7	10.6₍₂₂₎	24.5₍₂₂₎	Apr 10₍₂₂₎	92	40
Lynx Pass	8910	5.5	5.6	11.5	Apr 04	98	48
Old Battle	9850	13.9	15.6	38.8	May 05	89	36
Rabbit Ears	9390	12.8	11.6	27.9	Apr 21	110	46
Ripple Creek	10340	12.6	12.8	29.3	Apr 25	98	43
Sage Creek Basin	7830	5.9	6.9₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	86	40
Sandstone RS	8150	7.8	6.7	14.2	Apr 05	116	55
Tower	10610	22.1	21.0	49.0	May 07	105	45
Trapper Lake	9750	6.4	N/A	N/A	N/A	*	*
Whiskey Park	8950	13.5	12.8	30.8	Apr 17	105	44
Basin Index (%)		99
ARKANSAS RIVER BASIN
Apishapa	10000	2.1	3.2	7.6	Mar 16	66	28
Brumley	10570	6.1	5.2	11.8	Apr 19	117	52
Fremont Pass	11310	10.0	8.2	20.8	May 11	122	48
Glen Cove	11410	3.0	1.8₍₁₆₎	5.7₍₁₆₎	Apr 23₍₁₆₎	167	53
Hayden Pass	10700	8.0	7.8₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	103	49
Medano Pass	9650	3.1	2.7₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	115	42
Porphyry Creek	10790	11.2	7.2	17.0	Apr 15	156	66
Saint Elmo	10420	6.6	5.4₍₁₃₎	11.5₍₁₃₎	Apr 09₍₁₃₎	122	57
South Colony	10790	7.3	9.2₍₂₉₎	20.9₍₂₉₎	Apr 23₍₂₉₎	79	35
Ute Creek	10730	4.3	6.0₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	72	35
Whiskey Ck	10260	2.7	5.4	11.1	Apr 01	50	24
Basin Index (%)		104
UPPER RIO GRANDE BASIN
Beartown	11600	9.8	11.2	23.2	Apr 17	88	42
Cochetopa Pass	10020	3.3	2.6₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	127	69
Culebra #2	10570	4.5	6.4	14.0	Apr 05	70	32
Cumbres Trestle	10030	6.6	12.6	26.2	Apr 06	52	25
Elwood Pass	11680	9.2	N/A	N/A	N/A	*	*
Grayback	11620	3.5	N/A	N/A	N/A	*	*
Hayden Pass	10700	8.0	7.8₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	103	49
Lily Pond	11060	4.2	6.3	14.8	Apr 04	67	28
Medano Pass	9650	3.1	2.7₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	115	42
Middle Creek	11260	7.0	10.8	19.2	Apr 15	65	36
Moon Pass	11110	4.5	3.4₍₁₂₎	6.8₍₁₂₎	Apr 08₍₁₂₎	132	66
North Costilla	10570	0.2	3.7	7.0	Mar 20	5	3
Rat Creek	11680	7.8	N/A	N/A	N/A	*	*
San Antonio Sink	9120	3.1	N/A	N/A	N/A	*	*
Sargents Mesa	11490	5.1	5.4₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	94	45
Shuree	10080	2.6	2.8₍₁₀₎	6.0₍₁₀₎	Mar 08₍₁₀₎	93	43
Slumgullion	11560	7.6	7.4	15.0	Apr 21	103	51
Trinchera	10850	5.5	5.7	11.2	Apr 05	96	49
Upper Rio Grande	9370	2.6	3.4	6.6	Mar 18	76	39
Ute Creek	10730	4.3	6.0₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	72	35
Wager Gulch	11110	7.3	N/A	N/A	N/A	*	*
Wolf Creek Summit	10930	11.2	16.3	35.5	Apr 29	69	32
Basin Index (%)		79
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11600	9.8	11.2	23.2	Apr 17	88	42
Black Mesa	11580	9.2	N/A	N/A	N/A	*	*
Cascade	8900	-M	6.0	12.7	Mar 10	*	*
Cascade #2	8990	3.4	5.7	10.4	Mar 06	60	33
Columbine Pass	9160	7.0	8.3	18.0	Mar 26	84	39
Columbus Basin	10780	9.6	11.9₍₂₆₎	25.8₍₂₆₎	Apr 17₍₂₆₎	81	37
El Diente Peak	10210	-M	6.2	14.6	Apr 04	*	*
Elwood Pass	11680	9.2	N/A	N/A	N/A	*	*
Lizard Head Pass	10190	8.0	7.6	15.2	Apr 05	105	53
Lone Cone	9730	6.0	7.8	15.2	Apr 01	77	39
Mancos	10020	3.0	7.8₍₂₆₎	16.3₍₂₆₎	Mar 23₍₂₆₎	38	18
Mineral Creek	10030	7.3	7.2	15.6	Apr 09	101	47
Molas Lake	10610	8.4	8.6	22.0	Apr 11	98	38
Red Mountain Pass	11050	11.6	11.0	25.0	Apr 25	105	46
Scotch Creek	9160	5.6	5.6	12.0	Mar 18	100	47
Sharkstooth	10730	5.2	7.5₍₁₆₎	18.8₍₁₆₎	Apr 12₍₁₆₎	69	28
Spud Mountain	10660	8.7	11.5	25.6	Apr 04	76	34
Stump Lakes	11230	8.4	9.0	18.8	Apr 22	93	45
Upper San Juan	10140	6.9	13.0	29.7	Apr 09	53	23
Vallecito	10740	4.7	7.4	14.8	Apr 05	64	32
Weminuche Creek	10730	6.4	8.8₍₁₀₎	16.4₍₁₀₎	Mar 28₍₁₀₎	73	39
Wolf Creek Summit	10930	11.2	16.3	35.5	Apr 29	69	32
Basin Index (%)		79

-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.