Colorado SNOTEL Snow/Precipitation Update Report

Colorado SNOTEL Snow/Precipitation 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 Tuesday, September 26, 2023

Basin Site Name	Elev (ft)	Snow Water Equivalent			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
GUNNISON RIVER BASIN
Butte	10200	0.1	0.0	*	26.7	26.5	101
Cochetopa Pass	10061	-M	0.0₍₁₇₎	*	16.6	17.2₍₁₆₎	97
Columbine Pass	9171	0.3	0.0	*	51.1	33.5	153
Idarado	9812	0.0	0.0	*	30.7	31.2	98
Mc Clure Pass	8774	0.1	0.0	*	39.7	31.9	124
Mesa Lakes	10168	0.1	0.0	*	40.6	33.4	122
Overland Res.	9893	0.0	0.0	*	32.8	29.4	112
Park Cone	9621	0.2	0.0	*	23.1	19.4	119
Park Reservoir	9987	-M	0.0	*	54.5	39.7	137
Porphyry Creek	10788	0.0	0.0	*	28.5	26.5	108
Red Mountain Pass	11080	0.0	0.0	*	43.0	41.4	104
Sargents Mesa	11499	-M	0.0₍₁₂₎	*	20.6	23.8₍₁₂₎	87
Schofield Pass	10653	0.1	0.0	*	-M	46.8	*
Slumgullion	11560	0.1	0.0	*	22.2	23.8	93
Upper Taylor	10717	-M	0.0₍₁₁₎	*	-M	30.8₍₁₁₎	*
Wager Gulch	11132	0.1	N/A	*	23.9	N/A	*
Basin Index (%)		*			114
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10976	0.0	0.0₍₁₉₎	*	38.6	36.8₍₁₈₎	105
Bear River	9112	0.2	0.0₍₁₆₎	*	24.8	24.4₍₁₆₎	102
Beaver Ck Village	8565	0.0	0.0₍₁₈₎	*	28.0	25.5₍₁₇₎	110
Berthoud Summit	11314	-M	0.0	*	-M	40.2	*
Bison Lake	10964	0.0	0.0	*	48.8	40.5	120
Buffalo Park	9249	0.0	0.0₍₂₆₎	*	33.2	24.6₍₂₅₎	135
Chapman Tunnel	10100	-M	0.0₍₁₄₎	*	27.1	31.3₍₁₃₎	87
Columbine	9167	-M	0.0	*	35.4	37.2	95
Copper Mountain	10523	0.0	0.0	*	24.6	29.2	84
Elliot Ridge	10549	0.1	0.0₍₁₂₎	*	40.2	N/A	*
Fool Creek	11156	-M	N/A	*	-M	N/A	*
Fremont Pass	11326	-M	0.0	*	26.6	29.2	91
Grizzly Peak	11139	0.1	0.0	*	27.5	30.6	90
High Lonesome	10638	0.0	N/A	*	35.1	N/A	*
Hoosier Pass	11611	-M	0.0	*	26.8	29.4	91
Independence Pass	10598	0.0	0.0	*	26.1	29.7	88
Ivanhoe	10541	0.0	0.0₍₂₉₎	*	32.7	35.0₍₂₉₎	93
Jones Pass	10426	-M	0.0₍₂₁₎	*	33.2	33.9₍₂₁₎	98
Kiln	9624	0.3	0.0	*	24.1	23.8	101
Lake Irene	10682	0.1	0.0	*	38.5	34.9	110
Lynx Pass	8919	0.1	0.0	*	24.6	23.0	107
Mc Clure Pass	8774	0.1	0.0	*	39.7	31.9	124
Mccoy Park	9516	0.0	0.0₍₁₈₎	*	30.4	28.0₍₁₈₎	109
Mesa Lakes	10168	0.1	0.0	*	40.6	33.4	122
Middle Fork Camp	8969	-M	0.0₍₁₉₎	*	25.1	25.7₍₁₉₎	98
Nast Lake	8731	0.2	0.0	*	21.4	20.6	104
North Lost Trail	9219	0.0	0.0	*	39.0	35.4	110
Overland Res.	9893	0.0	0.0	*	32.8	29.4	112
Park Reservoir	9987	-M	0.0	*	54.5	39.7	137
Phantom Valley	9045	0.0	0.0	*	23.5	24.1	98
Schofield Pass	10653	0.1	0.0	*	-M	46.8	*
Stillwater Creek	8880	-M	N/A	*	23.8	18.3	130
Summit Ranch	9371	0.1	0.0	*	24.6	24.3	101
Vail Mountain	10310	0.0	0.0	*	29.8	34.1	87
Willow Creek Pass	9523	0.1	0.0	*	30.2	25.7	118
Basin Index (%)		*			105
SOUTH PLATTE RIVER BASIN
Bear Lake	9522	0.0	0.0	*	36.3	33.5	108
Berthoud Summit	11314	-M	0.0	*	-M	40.2	*
Black Mountain	8980	0.1	0.0₍₁₀₎	*	31.3	27.1₍₁₀₎	115
Buckskin Joe	11166	-M	0.0₍₂₂₎	*	22.7	28.7₍₂₁₎	79
Copeland Lake	8555	0.0	0.0	*	28.1	27.2	103
Deadman Hill	10239	0.2	0.0	*	34.7	30.2	115
Echo Lake	10694	0.1	0.0₍₂₂₎	*	-M	26.2₍₂₂₎	*
Hoosier Pass	11611	-M	0.0	*	26.8	29.4	91
Hourglass Lake	9417	0.0	0.0₍₁₂₎	*	27.5	24.9₍₁₂₎	110
Jackwhacker Gulch	11054	0.0	0.0₍₂₂₎	*	29.5	30.6₍₂₂₎	96
Joe Wright	10158	0.0	0.0	*	42.7	43.2	99
Lake Eldora	9728	0.0	0.0	*	34.0	30.1	113
Lake Irene	10682	0.1	0.0	*	38.5	34.9	110
Long Draw Resv	10008	0.1	0.0₍₁₁₎	*	29.9	28.4₍₁₁₎	105
Loveland Basin	11427	0.1	0.0₍₂₈₎	*	27.0	33.4₍₂₈₎	81
Michigan Creek	10702	0.0	0.0₍₂₂₎	*	25.8	28.1₍₂₂₎	92
Niwot	9979	0.1	0.0	*	32.8	30.3	108
Rough And Tumble	10432	0.0	0.0₍₂₂₎	*	16.4	19.9₍₂₂₎	82
Sawtooth	9676	0.0	N/A	*	46.0	N/A	*
University Camp	10360	0.0	0.0	*	40.3	36.0	112
Wild Basin	9439	0.0	0.0₍₁₅₎	*	34.9	30.4₍₁₅₎	115
Willow Park	10732	0.0	0.0	*	39.0	37.1	105
Basin Index (%)		*			103
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10976	0.0	0.0₍₁₉₎	*	38.6	36.8₍₁₈₎	105
Blackhall Mtn	9839	0.1	0.0₍₁₁₎	*	48.4	43.7₍₁₁₎	111
Columbine	9167	-M	0.0	*	35.4	37.2	95
Deadman Hill	10239	0.2	0.0	*	34.7	30.2	115
Joe Wright	10158	0.0	0.0	*	42.7	43.2	99
Never Summer	10323	0.1	0.0₍₁₈₎	*	36.4	32.5₍₁₈₎	112
Rawah	9069	0.0	0.0₍₁₈₎	*	30.1	28.2₍₁₈₎	107
Roach	9740	0.0	0.0	*	34.7	32.7	106
Tower	10620	0.1	0.0	*	63.9	57.6	111
Whiskey Park	9020	0.0	0.0	*	44.3	41.9	106
Willow Creek Pass	9523	0.1	0.0	*	30.2	25.7	118
Zirkel	9338	0.1	0.0₍₁₈₎	*	45.7	43.2₍₁₈₎	106
Basin Index (%)		*			107
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7498	0.0	0.0	*	28.9	24.0	120
Bear River	9112	0.2	0.0₍₁₆₎	*	24.8	24.4₍₁₆₎	102
Bison Lake	10964	0.0	0.0	*	48.8	40.5	120
Buffalo Park	9249	0.0	0.0₍₂₆₎	*	33.2	24.6₍₂₅₎	135
Burro Mountain	9317	0.3	0.0	*	47.9	31.8	151
Columbine	9167	-M	0.0	*	35.4	37.2	95
Crosho	8973	-M	0.0	*	32.2	26.2	123
Divide Peak	8730	0.1	0.0	*	37.1	31.6	117
Dry Lake	8271	0.0	0.0	*	38.1	37.4	102
Elk River	8739	0.2	0.0	*	38.8	31.1	125
Elkhead Divide	8800	0.0	N/A	*	41.1	N/A	*
Little Snake River	8928	-M	0.0₍₁₆₎	*	54.2	47.2₍₁₆₎	115
Lost Dog	9327	0.1	0.0₍₂₂₎	*	39.2	36.4₍₂₂₎	108
Lynx Pass	8919	0.1	0.0	*	24.6	23.0	107
Old Battle	9860	0.0	0.0	*	55.8	50.1	111
Rabbit Ears	9411	0.0	0.0	*	44.1	45.1	98
Ripple Creek	10350	-M	0.0	*	48.0	38.4	125
Sage Creek Basin	7850	0.0	0.0₍₁₉₎	*	26.5	21.7₍₁₉₎	122
Sandstone RS	8152	0.0	0.0	*	32.4	27.4	118
Tower	10620	0.1	0.0	*	63.9	57.6	111
Trapper Lake	9759	0.0	N/A	*	31.2	31.6	99
Whiskey Park	9020	0.0	0.0	*	44.3	41.9	106
Basin Index (%)		*			114
ARKANSAS RIVER BASIN
Apishapa	10027	0.1	0.0	*	23.1	26.0	89
Brumley	10594	0.0	0.0	*	21.2	23.4	91
Fremont Pass	11326	-M	0.0	*	26.6	29.2	91
Glen Cove	11391	0.0	0.0₍₁₆₎	*	31.9	29.7₍₁₆₎	107
Hayden Pass	10699	0.0	0.0₍₁₃₎	*	22.8	26.1₍₁₃₎	87
Medano Pass	9668	0.2	0.0₍₂₅₎	*	23.9	23.8₍₂₅₎	100
Porphyry Creek	10788	0.0	0.0	*	28.5	26.5	108
Saint Elmo	10450	-M	0.0₍₁₃₎	*	24.9	24.7₍₁₃₎	101
South Colony	10868	-M	0.0₍₂₉₎	*	38.1	42.2₍₂₉₎	90
Ute Creek	10734	-M	0.0₍₂₀₎	*	26.0	29.8₍₂₀₎	87
Whiskey Ck	10290	0.0	0.0	*	28.3	32.6	87
Basin Index (%)		*			94
UPPER RIO GRANDE BASIN
Beartown	11600	0.0	0.0	*	41.0	38.8	106
Cochetopa Pass	10061	-M	0.0₍₁₇₎	*	16.6	17.2₍₁₆₎	97
Culebra #2	10562	0.3	0.0	*	23.5	27.0	87
Cumbres Trestle	10035	-M	0.0	*	44.6	38.6	116
Grayback	11626	0.0	N/A	*	28.7	31.8₍₁₆₎	90
Hayden Pass	10699	0.0	0.0₍₁₃₎	*	22.8	26.1₍₁₃₎	87
Lily Pond	11069	0.0	0.0	*	29.4	31.2	94
Medano Pass	9668	0.2	0.0₍₂₅₎	*	23.9	23.8₍₂₅₎	100
Middle Creek	11269	0.0	0.0	*	37.0	38.9	95
Moon Pass	11128	0.0	0.0₍₁₂₎	*	16.1	19.8₍₁₂₎	81
North Costilla	10598	-M	0.0	*	21.5	26.6	81
San Antonio Sink	9143	0.0	N/A	*	18.5	N/A	*
Sargents Mesa	11499	-M	0.0₍₁₂₎	*	20.6	23.8₍₁₂₎	87
Shuree	10092	0.1	0.0₍₁₁₎	*	17.2	19.8₍₁₁₎	87
Slumgullion	11560	0.1	0.0	*	22.2	23.8	93
Trinchera	10922	0.0	0.0	*	19.4	22.2	87
Upper Rio Grande	9379	0.0	0.0	*	19.0	18.9	101
Ute Creek	10734	-M	0.0₍₂₀₎	*	26.0	29.8₍₂₀₎	87
Wager Gulch	11132	0.1	N/A	*	23.9	N/A	*
Wolf Creek Summit	10957	0.1	0.0	*	53.9	49.1	110
Basin Index (%)		*			95
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11600	0.0	0.0	*	41.0	38.8	106
Black Mesa	11564	-M	N/A	*	45.5	N/A	*
Cascade	8880	-M	0.0	*	-M	31.8	*
Cascade #2	9012	0.0	0.0	*	38.0	31.4	121
Columbine Pass	9171	0.3	0.0	*	51.1	33.5	153
Columbus Basin	10781	0.0	0.0₍₂₇₎	*	49.3	42.6₍₂₆₎	116
El Diente Peak	10217	-M	0.0	*	39.0	32.3	121
Lizard Head Pass	10193	0.1	0.0	*	29.6	27.4	108
Lone Cone	9755	-M	0.0	*	37.0	33.3	111
Mancos	10044	0.0	0.0₍₂₆₎	*	34.3	30.7₍₂₆₎	112
Mineral Creek	10046	0.0	0.0	*	30.4	30.4	100
Molas Lake	10631	0.0	0.0	*	36.5	33.2	110
Red Mountain Pass	11080	0.0	0.0	*	43.0	41.4	104
Scotch Creek	9195	0.0	0.0	*	33.1	27.8	119
Sharkstooth	10747	0.0	0.0₍₁₆₎	*	45.9	39.2₍₁₆₎	117
Spud Mountain	10674	-M	0.0	*	56.6	45.2	125
Stump Lakes	11248	-M	0.0	*	37.8	34.7	109
Upper San Juan	10140	-M	0.0	*	56.3	50.9	111
Vallecito	10782	0.0	0.0	*	36.1	30.6	118
Weminuche Creek	10749	0.0	0.0₍₁₀₎	*	41.3	40.0₍₁₀₎	103
Wolf Creek Summit	10957	0.1	0.0	*	53.9	49.1	110
Basin Index (%)		*			114

-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.

If the Basin Index (%) percent value is flagged as potentially invalid,
care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

The WATER YEAR-TO-DATE-PRECIPITATION represents total precipitation since October 1st, expressed in inches.

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.

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