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 Friday, April 17, 2026

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	2.6	12.6	13.7	Apr 08	21	19
Castle Peak	11510	14.4	N/A	N/A	N/A	*	*
Cochetopa Pass	10020	0.6	0.6₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	100	12
Columbine Pass	9160	0.0	12.2	18.0	Mar 26	0	0
Idarado	9780	0.0	11.7	14.4	Apr 06	0	0
Mc Clure Pass	8760	0.0	13.8	16.6	Apr 04	0	0
Mesa Lakes	10160	0.7	17.0	19.0	Apr 15	4	4
Overland Res.	9890	0.1	9.4	12.4	Apr 05	1	1
Park Cone	9600	-M	9.6	10.4	Apr 09	*	*
Park Reservoir	9990	12.4	25.4	27.4	Apr 26	49	45
Porphyry Creek	10790	0.0	15.2	17.0	Apr 15	0	0
Rat Creek	11680	1.4	N/A	N/A	N/A	*	*
Red Mountain Pass	11060	6.3	23.2	25.0	Apr 25	27	25
Sargents Mesa	11490	0.0	10.1₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	0	0
Schofield Pass	10640	12.5	33.1	35.1	Apr 19	38	36
Slumgullion	11560	0.1	14.4	15.0	Apr 21	1	1
Upper Taylor	10710	0.0	11.6₍₁₁₎	13.6₍₁₁₎	Apr 03₍₁₁₎	0	0
Wager Gulch	11110	0.2	N/A	N/A	N/A	*	*
Basin Index (%)		17
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10960	10.0	23.2₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	43	40
Bear River	9100	0.1	11.7₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	1	1
Beaver Ck Village	8530	0.0	8.7₍₁₇₎	11.7₍₁₇₎	Apr 02₍₁₇₎	0	0
Berthoud Summit	11300	5.8	20.9	23.2	May 03	28	25
Bison Lake	10950	10.4	25.2	26.9	Apr 29	41	39
Buffalo Park	9240	0.0	13.7₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	0	0
Castle Peak	11510	14.4	N/A	N/A	N/A	*	*
Chapman Tunnel	10090	0.9	14.1₍₁₃₎	15.4₍₁₃₎	Apr 19₍₁₃₎	6	6
Columbine	9170	0.0	21.6	24.6	Apr 05	0	0
Copper Mountain	10500	2.7	15.6	17.4	Apr 26	17	16
Elliot Ridge	10550	9.2	20.6₍₁₁₎	23.2₍₁₁₎	Apr 25₍₁₁₎	45	40
Fool Creek	11130	10.5	N/A	N/A	N/A	*	*
Fremont Pass	11310	8.0	18.0	20.8	May 11	44	38
Grizzly Peak	11110	5.6	18.2	19.6	Apr 21	31	29
High Lonesome	10630	7.6	N/A	N/A	N/A	*	*
Hoosier Pass	11600	6.0	16.0	17.3	Apr 27	38	35
Independence Pass	10570	4.7	16.3	17.4	Apr 18	29	27
Ivanhoe	10540	7.0	16.1₍₂₉₎	17.2₍₂₉₎	Apr 26₍₂₉₎	43	41
Jones Pass	10430	0.0	15.2₍₂₁₎	16.8₍₂₁₎	Apr 27₍₂₁₎	0	0
Kiln	9610	0.0	10.8	13.2	Apr 07	0	0
Lake Irene	10680	9.9	23.6	25.4	Apr 26	42	39
Lynx Pass	8910	0.0	9.2	11.5	Apr 04	0	0
Mc Clure Pass	8760	0.0	13.8	16.6	Apr 04	0	0
Mccoy Park	9500	0.0	12.0₍₁₈₎	14.6₍₁₈₎	Apr 07₍₁₈₎	0	0
Mesa Lakes	10160	0.7	17.0	19.0	Apr 15	4	4
Middle Fork Camp	8960	0.0	10.2₍₁₉₎	11.5₍₁₉₎	Apr 04₍₁₉₎	0	0
Nast Lake	8710	0.0	2.4	8.8	Mar 28	0	0
North Lost Trail	9190	0.2	13.6	17.4	Apr 04	1	1
Overland Res.	9890	0.1	9.4	12.4	Apr 05	1	1
Park Reservoir	9990	12.4	25.4	27.4	Apr 26	49	45
Phantom Valley	9030	0.2	8.1	10.4	Mar 30	2	2
Schofield Pass	10640	12.5	33.1	35.1	Apr 19	38	36
Stillwater Creek	8760	0.1	N/A	N/A	N/A	*	*
Summit Ranch	9350	0.0	10.6	11.4	Apr 09	0	0
Vail Mountain	10290	0.0	19.4	20.8	Apr 27	0	0
Willow Creek Pass	9520	7.6	14.4	16.4	May 03	53	46
Basin Index (%)		22
SOUTH PLATTE RIVER BASIN
Bear Lake	9490	7.7	18.5	19.8	Apr 27	42	39
Berthoud Summit	11300	5.8	20.9	23.2	May 03	28	25
Black Mountain	8940	0.1	11.0₍₁₀₎	12.5₍₁₀₎	Apr 17₍₁₀₎	1	1
Buckskin Joe	11160	1.7	11.3₍₂₁₎	12.6₍₂₁₎	May 02₍₂₁₎	15	13
Copeland Lake	8570	0.1	0.2	6.0	Mar 08	50*	2*
Deadman Hill	10240	6.8	16.6	21.8	May 04	41	31
Echo Lake	10660	0.6	8.0₍₂₂₎	9.0₍₂₂₎	Apr 29₍₂₂₎	8	7
Hoosier Pass	11600	6.0	16.0	17.3	Apr 27	38	35
Hourglass Lake	9380	0.0	12.0₍₁₂₎	13.0₍₁₂₎	Apr 19₍₁₂₎	0	0
Jackwhacker Gulch	11030	1.0	13.1₍₂₂₎	14.4₍₂₂₎	Apr 25₍₂₂₎	8	7
Joe Wright	10140	5.1	21.9	24.0	May 05	23	21
Lake Eldora	9700	0.0	10.6	14.0	Apr 09	0	0
Lake Irene	10680	9.9	23.6	25.4	Apr 26	42	39
Long Draw Resv	9980	2.3	16.8₍₁₁₎	18.3₍₁₁₎	Apr 27₍₁₁₎	14	13
Loveland Basin	11410	11.8	20.8₍₂₈₎	24.4₍₂₈₎	May 02₍₂₈₎	57	48
Michigan Creek	10700	0.2	11.3₍₂₂₎	13.2₍₂₂₎	Apr 26₍₂₂₎	2	2
Niwot	9940	0.2	12.4	15.0	Apr 19	2	1
Rough And Tumble	10420	0.1	6.4₍₂₂₎	8.3₍₂₂₎	Apr 24₍₂₂₎	2	1
Sawtooth	9640	11.2	N/A	N/A	N/A	*	*
University Camp	10330	8.6	17.2	19.9	May 07	50	43
Wild Basin	9410	6.0	16.4₍₁₅₎	18.6₍₁₅₎	Apr 25₍₁₅₎	37	32
Willow Park	10710	5.6	18.3	21.0	Apr 29	31	27
Basin Index (%)		26
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10960	10.0	23.2₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	43	40
Blackhall Mtn	9830	11.6	32.3₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	36	34
Columbine	9170	0.0	21.6	24.6	Apr 05	0	0
Deadman Hill	10240	6.8	16.6	21.8	May 04	41	31
Joe Wright	10140	5.1	21.9	24.0	May 05	23	21
Never Summer	10300	13.1	21.6₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	61	55
Rawah	9100	0.3	10.4₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	3	2
Roach	9710	2.6	16.0	17.5	Apr 25	16	15
Tower	10610	23.7	45.2	49.0	May 07	52	48
Whiskey Park	8950	13.7	26.1	30.8	Apr 17	52	44
Willow Creek Pass	9520	7.6	14.4	16.4	May 03	53	46
Zirkel	9320	0.3	25.8₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	1	1
Basin Index (%)		34
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7460	0.2	6.8	12.6	Mar 27	3	2
Bear River	9100	0.1	11.7₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	1	1
Bison Lake	10950	10.4	25.2	26.9	Apr 29	41	39
Buffalo Park	9240	0.0	13.7₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	0	0
Burro Mountain	9290	0.3	14.4	16.6	Apr 13	2	2
Columbine	9170	0.0	21.6	24.6	Apr 05	0	0
Crosho	8960	0.1	9.6	12.6	Apr 05	1	1
Divide Peak	8700	0.4	19.3	21.4	Apr 15	2	2
Dry Lake	8240	0.2	18.6	22.3	Apr 04	1	1
Elk River	8710	0.2	16.6	19.4	Apr 05	1	1
Elkhead Divide	8780	0.5	N/A	N/A	N/A	*	*
Little Snake River	8930	6.5	25.1₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	26	22
Lost Dog	9350	5.5	22.3₍₂₂₎	24.5₍₂₂₎	Apr 10₍₂₂₎	25	22
Lynx Pass	8910	0.0	9.2	11.5	Apr 04	0	0
Old Battle	9840	21.4	33.2	38.8	May 05	64	55
Rabbit Ears	9390	1.4	25.3	27.9	Apr 21	6	5
Ripple Creek	10340	11.2	27.2	29.3	Apr 25	41	38
Sage Creek Basin	7830	0.2	9.6₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	2	1
Sandstone RS	8150	0.1	10.8	14.2	Apr 05	1	1
Tower	10610	23.7	45.2	49.0	May 07	52	48
Trapper Lake	9750	0.1	N/A	N/A	N/A	*	*
Whiskey Park	8950	13.7	26.1	30.8	Apr 17	52	44
Basin Index (%)		24
ARKANSAS RIVER BASIN
Apishapa	10000	0.0	2.2	7.6	Mar 16	0	0
Brumley	10570	0.1	11.0	11.8	Apr 19	1	1
Fremont Pass	11310	8.0	18.0	20.8	May 11	44	38
Glen Cove	11410	0.0	4.8₍₁₆₎	5.7₍₁₆₎	Apr 23₍₁₆₎	0	0
Hayden Pass	10700	0.1	14.0₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	1	1
Medano Pass	9650	0.0	0.4₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	0*	0*
Porphyry Creek	10790	0.0	15.2	17.0	Apr 15	0	0
Saint Elmo	10420	0.0	9.8₍₁₃₎	11.5₍₁₃₎	Apr 09₍₁₃₎	0	0
South Colony	10790	3.3	19.3₍₂₉₎	20.9₍₂₉₎	Apr 23₍₂₉₎	17	16
Ute Creek	10720	0.2	11.6₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	2	2
Whiskey Ck	10260	0.1	9.4	11.1	Apr 01	1	1
Basin Index (%)		10
UPPER RIO GRANDE BASIN
Beartown	11580	1.3	21.4	23.2	Apr 17	6	6
Cochetopa Pass	10020	0.6	0.6₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	100	12
Culebra #2	10560	0.0	12.4	14.0	Apr 05	0	0
Cumbres Trestle	10030	0.3	23.0	26.2	Apr 06	1	1
Elwood Pass	11680	7.4	N/A	N/A	N/A	*	*
Grayback	11620	0.7	N/A	N/A	N/A	*	*
Hayden Pass	10700	0.1	14.0₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	1	1
Lily Pond	11070	0.1	11.6	14.8	Apr 04	1	1
Medano Pass	9650	0.0	0.4₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	0*	0*
Middle Creek	11260	7.3	18.0	19.2	Apr 15	41	38
Moon Pass	11110	0.0	5.6₍₁₂₎	6.8₍₁₂₎	Apr 08₍₁₂₎	0	0
North Costilla	10570	0.1	2.2	7.0	Mar 20	5	1
Rat Creek	11680	1.4	N/A	N/A	N/A	*	*
San Antonio Sink	9120	0.2	N/A	N/A	N/A	*	*
Sargents Mesa	11490	0.0	10.1₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	0	0
Shuree	10070	0.0	0.0₍₁₀₎	6.0₍₁₀₎	Mar 08₍₁₀₎	*	0*
Slumgullion	11560	0.1	14.4	15.0	Apr 21	1	1
Trinchera	10860	0.1	9.2	11.2	Apr 05	1	1
Upper Rio Grande	9370	0.1	1.0	6.6	Mar 18	10	2
Ute Creek	10720	0.2	11.6₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	2	2
Wager Gulch	11110	0.2	N/A	N/A	N/A	*	*
Wolf Creek Summit	10930	12.2	31.7	35.5	Apr 29	38	34
Basin Index (%)		12
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11580	1.3	21.4	23.2	Apr 17	6	6
Black Mesa	11580	13.8	N/A	N/A	N/A	*	*
Cascade	8900	-M	1.3	12.7	Mar 10	*	*
Cascade #2	8990	0.0	0.0	10.4	Mar 06	*	0*
Columbine Pass	9160	0.0	12.2	18.0	Mar 26	0	0
Columbus Basin	10780	10.1	23.8₍₂₆₎	25.8₍₂₆₎	Apr 17₍₂₆₎	42	39
El Diente Peak	10210	0.0	11.9	14.6	Apr 04	0	0
Elwood Pass	11680	7.4	N/A	N/A	N/A	*	*
Lizard Head Pass	10190	0.0	14.0	15.2	Apr 05	0	0
Lone Cone	9730	0.0	10.8	15.2	Apr 01	0	0
Mancos	10020	0.0	9.6₍₂₆₎	16.3₍₂₆₎	Mar 23₍₂₆₎	0	0
Mineral Creek	10030	0.0	13.9	15.6	Apr 09	0	0
Molas Lake	10610	0.0	20.6	22.0	Apr 11	0	0
Red Mountain Pass	11060	6.3	23.2	25.0	Apr 25	27	25
Scotch Creek	9160	0.0	5.2	12.0	Mar 18	0	0
Sharkstooth	10730	0.3	17.2₍₁₆₎	18.8₍₁₆₎	Apr 12₍₁₆₎	2	2
Spud Mountain	10660	1.3	21.4	25.6	Apr 04	6	5
Stump Lakes	11230	4.0	17.6	18.8	Apr 22	23	21
Upper San Juan	10140	2.1	28.7	29.7	Apr 09	7	7
Vallecito	10740	0.7	12.6	14.8	Apr 05	6	5
Weminuche Creek	10730	0.5	11.6₍₁₀₎	16.4₍₁₀₎	Mar 28₍₁₀₎	4	3
Wolf Creek Summit	10930	12.2	31.7	35.5	Apr 29	38	34
Basin Index (%)		13

-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.