Alaska SNOTEL Snow/Precipitation Update Report

Alaska 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 Monday, May 19, 2025

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
Arctic and Northwest
Atigun Pass	4780	-M	N/A	*	9.2	7.6₍₂₉₎	121
Imnaviat Creek	3060	-M	N/A	*	3.9	3.4₍₂₈₎	115
Kelly Station	300	0.0	0.0₍₁₁₎	*	5.4	8.5₍₁₃₎	64
Prudhoe Bay	50	-M	N/A	*	4.7	4.2₍₁₇₎	112
Sagwon	1000	-M	N/A	*	3.3	3.4₍₂₈₎	97
Basin Index (%)		*			98
Central Yukon
American Creek	1020	0.0	N/A	*	5.0	N/A	*
Atigun Pass	4780	-M	N/A	*	9.2	7.6₍₂₉₎	121
Eagle Summit	3630	-M	N/A	*	6.2	6.2₍₂₂₎	100
Fort Yukon	440	-M	N/A	*	6.7	4.1₍₂₅₎	163
Jack Wade Jct	3660	3.6	N/A	*	7.5	N/A	*
Monument Creek	1840	0.0	0.0	*	9.2	6.9	133
Mt. Ryan	2750	5.8	0.0	*	10.2	6.4	159
Upper Chena	2790	7.3	0.0₍₂₁₎	*	-M	8.4₍₂₆₎	*
Upper Nome Creek	2500	7.4	N/A	*	15.2	7.5₍₁₃₎	203
Basin Index (%)		*			147
Copper River
Fielding Lake	3000	5.3	N/A	*	12.4	N/A	*
Gulkana River	1830	-M	N/A	*	5.3	N/A	*
Horsepasture Pass	4220	-M	N/A	*	-M	N/A	*
Look Eyrie	5040	48.6	N/A	*	-M	N/A	*
May Creek	1550	0.0	0.0₍₁₃₎	*	4.8	6.7₍₁₃₎	72
Mt. Eyak	1450	1.2	7.2₍₁₄₎	17	91.7	83.8₍₁₅₎	109
Nicks Valley	4230	-M	N/A	*	-M	N/A	*
Strawberry Reef	20	-M	N/A	*	60.6	N/A	*
Upper Tsaina River	1730	10.3	7.1₍₁₇₎	145	26.8	27.7₍₁₇₎	97
Basin Index (%)		80			104
Kenai Peninsula
Anchor River Divide	1650	-M	0.0₍₁₉₎	*	23.7	19.5₍₁₈₎	122
Cooper Lake	1150	0.0	0.0	*	27.9	26.3	106
Exit Glacier	360	0.0	N/A	*	67.7	N/A	*
Grandview	1070	10.5	23.0₍₂₉₎	46	64.3	47.0	137
Grouse Creek Divide	720	0.0	0.0₍₂₃₎	*	51.4	44.4₍₂₈₎	116
Indian Pass	2400	22.7	17.3	131	31.2	29.4	106
Kenai Moose Pens	300	0.0	0.0	*	9.8	9.4	104
Lower Kachemak Creek	1960	-M	N/A	*	53.1	N/A	*
Mcneil Canyon	1350	0.0	0.0	*	21.7	17.8₍₂₁₎	122
Middle Fork Bradley	2340	-M	N/A	*	47.2	35.7₍₂₇₎	132
Moose Inc	110	-M	N/A	*	26.8	N/A	*
Mt. Alyeska	1500	6.5	18.8	35	62.8	48.9₍₂₉₎	128
Nuka Glacier	1230	-M	N/A	*	75.3	58.9₍₂₇₎	128
Port Graham	270	0.0	0.0₍₂₀₎	*	62.7	51.6₍₂₀₎	122
Primrose	2030	-M	N/A	*	-M	N/A	*
Schor Garden	380	-M	N/A	*	23.4	N/A	*
Summit Creek	1340	0.0	0.0	*	22.7	19.2	118
Turnagain Pass	1860	29.2	34.0₍₂₉₎	86	54.7	46.0	119
Basin Index (%)		74*			122
Matanuska-Susitna Basins
Alexander Lake	170	0.0	N/A	*	16.7	N/A	*
East Palmer	240	-M	N/A	*	-M	N/A	*
Frostbite Bottom	2690	12.0	N/A	*	19.9	N/A	*
Horsepasture Pass	4220	-M	N/A	*	-M	N/A	*
Independence Mine	3450	22.7	N/A	*	20.3	20.4₍₂₀₎	100
Monahan Flat	2690	1.7	N/A	*	9.6	8.0₍₂₇₎	120
Moraine	2010	0.0	0.0₍₁₈₎	*	10.4	11.9₍₁₈₎	87
Spring Creek	590	-M	N/A	*	7.2	N/A	*
Susitna Valley High	360	0.0	0.0	*	15.6	13.7	114
Tokositna Valley	840	1.0	2.2₍₁₄₎	45	28.6	23.6₍₁₄₎	121
Basin Index (%)		45*			109
Northern Cook Inlet
Anchorage Hillside	1910	0.0	0.0₍₁₅₎	*	15.1	17.1₍₁₅₎	88
East Palmer	240	-M	N/A	*	-M	N/A	*
Frostbite Bottom	2690	12.0	N/A	*	19.9	N/A	*
Indian Pass	2400	22.7	17.3	131	31.2	29.4	106
Mcneil River SGS	110	-M	N/A	*	76.2	N/A	*
Moraine	2010	0.0	0.0₍₁₈₎	*	10.4	11.9₍₁₈₎	87
Mt. Alyeska	1500	6.5	18.8	35	62.8	48.9₍₂₉₎	128
Spring Creek	590	-M	N/A	*	7.2	N/A	*
Basin Index (%)		81			111
Southeast
Flower Mountain	2540	24.3	N/A	*	-M	N/A	*
Heen Latinee	2100	6.5	N/A	*	46.0	N/A	*
Long Lake	840	9.1	21.6₍₂₁₎	42	117.9	106.8₍₂₁₎	110
Moore Creek Bridge	2250	-M	N/A	*	27.4	31.1₍₁₆₎	88
Basin Index (%)		42			105
Southwest
Aniak	90	0.0	N/A	*	10.1	6.4₍₁₇₎	158
Checkers Creek	370	-M	N/A	*	-M	N/A	*
Johnsons Camp	10	-M	N/A	*	-M	N/A	*
Pargon Creek	90	-M	N/A	*	-M	7.0₍₁₉₎	*
Rocky Point	180	-M	N/A	*	5.8	7.0₍₁₉₎	83
Basin Index (%)		*			119
Tanana
Chena Lakes	500	0.0	N/A	*	6.7	N/A	*
Chisana	3320	0.0	0.0₍₁₂₎	*	3.8	4.6₍₁₂₎	83
Creamers Field	440	0.0	N/A	*	6.8	N/A	*
Fielding Lake	3000	5.3	N/A	*	12.4	N/A	*
Granite Crk	1250	0.0	0.0	*	4.6	4.6	100
Kantishna	1590	0.0	N/A	*	9.9	6.5₍₁₅₎	152
Little Chena Ridge	2150	0.0	0.0	*	10.0	6.8	147
Look Eyrie	5040	48.6	N/A	*	-M	N/A	*
Monahan Flat	2690	1.7	N/A	*	9.6	8.0₍₂₇₎	120
Monument Creek	1840	0.0	0.0	*	9.2	6.9	133
Mt. Ryan	2750	5.8	0.0	*	10.2	6.4	159
Munson Ridge	3020	13.2	2.4	550	12.9	9.6	134
Nenana	370	-M	N/A	*	8.6	3.8₍₁₂₎	226
Paradise Hill	2010	0.0	N/A	*	4.3	N/A	*
Teuchet Creek	1560	0.0	0.0	*	6.0	5.2₍₂₉₎	115
Tok	1640	0.0	N/A	*	4.0	N/A	*
Upper Chena	2790	7.3	0.0₍₂₁₎	*	-M	8.4₍₂₆₎	*
Upper Nome Creek	2500	7.4	N/A	*	15.2	7.5₍₁₃₎	203
Basin Index (%)		1096*			143
Western Gulf
Cooper Lake	1150	0.0	0.0	*	27.9	26.3	106
Esther Island	50	-M	N/A	*	145.4	99.1₍₁₅₎	147
Exit Glacier	360	0.0	N/A	*	67.7	N/A	*
Grouse Creek Divide	720	0.0	0.0₍₂₃₎	*	51.4	44.4₍₂₈₎	116
Mt. Eyak	1450	1.2	7.2₍₁₄₎	17	91.7	83.8₍₁₅₎	109
Nicks Valley	4230	-M	N/A	*	-M	N/A	*
Nuchek	40	-M	N/A	*	132.2	N/A	*
Nuka Glacier	1230	-M	N/A	*	75.3	58.9₍₂₇₎	128
Port San Juan	10	-M	N/A	*	113.3	N/A	*
Seal Island	30	-M	N/A	*	57.6	N/A	*
Sugarloaf Mtn	530	-M	N/A	*	49.9	49.3₍₁₃₎	101
Tatitlek	30	-M	N/A	*	59.8	N/A	*
Upper Tsaina River	1730	10.3	7.1₍₁₇₎	145	26.8	27.7₍₁₇₎	97
Basin Index (%)		80			120
Western Interior
Aniak	90	0.0	N/A	*	10.1	6.4₍₁₇₎	158
Atigun Pass	4780	-M	N/A	*	9.2	7.6₍₂₉₎	121
Bettles Field	640	4.8	0.0	*	9.4	7.6	124
Coldfoot	1070	4.5	0.0₍₂₅₎	*	9.3	6.5₍₂₅₎	143
Galena AK	340	0.0	N/A	*	7.9	N/A	*
Gobblers Knob	2040	-M	N/A	*	9.9	7.0₍₂₃₎	141
Hozatka Lake	220	-M	N/A	*	0.0	N/A	*
Kanuti Lake	520	-M	N/A	*	-M	N/A	*
McGrath	340	0.0	N/A	*	10.7	N/A	*
Telaquana Lake	1250	0.0	N/A	*	7.2	N/A	*
Basin Index (%)		*			136

-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.