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 Thursday, November 21, 2024

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	4800	-M	N/A	*	2.9	1.8₍₂₉₎	161
Imnaviat Creek	3050	-M	N/A	*	1.7	1.2₍₂₉₎	142
Kelly Station	310	0.5	0.5₍₁₁₎	100*	1.8	2.0₍₁₃₎	90
Prudhoe Bay	30	-M	N/A	*	1.2	0.9₍₁₇₎	133
Sagwon	1000	-M	N/A	*	1.1	1.0₍₂₇₎	110
Basin Index (%)		100*			126
Central Yukon
American Creek	1050	0.9	N/A	*	1.1	N/A	*
Atigun Pass	4800	-M	N/A	*	2.9	1.8₍₂₉₎	161
Eagle Summit	3650	-M	N/A	*	1.4	1.9₍₂₂₎	74
Fort Yukon	430	-M	N/A	*	1.8	1.4₍₂₆₎	129
Jack Wade Jct	3585	1.8	N/A	*	1.8	N/A	*
Monument Creek	1850	2.8	1.8	156	3.6	2.0	180
Mt. Ryan	2800	4.6	1.7₍₂₉₎	271	3.9	1.8₍₂₉₎	217
Upper Chena	2850	4.4	2.1₍₂₂₎	210	-M	2.4₍₂₈₎	*
Upper Nome Creek	2520	5.2	N/A	*	5.7	2.0₍₁₄₎	285
Basin Index (%)		211			177
Copper River
Fielding Lake	3000	2.4	N/A	*	2.9	N/A	*
Gulkana River	1830	-M	N/A	*	1.0	N/A	*
Horsepasture Pass	4300	-M	N/A	*	-M	N/A	*
Look Eyrie	5040	16.3	N/A	*	-M	N/A	*
May Creek	1610	1.3	1.0₍₁₃₎	130	1.6	2.4₍₁₃₎	67
Mt. Eyak	1405	2.8	3.0₍₁₅₎	93	22.8	23.2₍₁₅₎	98
Nicks Valley	4280	-M	N/A	*	-M	N/A	*
Strawberry Reef	30	-M	N/A	*	17.6	N/A	*
Upper Tsaina River	1750	5.8	3.0₍₁₇₎	193	6.4	7.7₍₁₇₎	83
Basin Index (%)		141			92
Kenai Peninsula
Anchor River Divide	1653	4.1	1.7₍₁₉₎	241	7.2	5.9₍₁₉₎	122
Cooper Lake	1200	4.0	1.6	250	7.8	8.2	95
Exit Glacier	400	1.9	N/A	*	14.2	N/A	*
Grandview	1100	4.7	2.4₍₂₉₎	196*	19.7	12.8	154
Grouse Creek Divide	700	2.4	0.8₍₂₂₎	300*	11.7	11.4₍₂₈₎	103
Indian Pass	2350	6.6	4.1	161	8.8	7.9	111
Kenai Moose Pens	300	3.1	0.8	388	3.3	2.9	114
Lower Kachemak Creek	1915	-M	N/A	*	15.4	N/A	*
Mcneil Canyon	1320	2.7	1.1	245	6.8	5.1₍₂₁₎	133
Middle Fork Bradley	2300	-M	N/A	*	15.3	12.6₍₂₈₎	121
Moose Inc	120	-M	N/A	*	8.1	N/A	*
Mt. Alyeska	1540	4.7	3.3₍₂₉₎	142*	14.0	11.5₍₂₈₎	122
Nuka Glacier	1250	-M	N/A	*	17.5	20.8₍₂₉₎	84
Port Graham	300	0.3	0.2₍₂₀₎	150*	14.4	14.9₍₂₀₎	97
Primrose	2030	-M	N/A	*	-M	N/A	*
Schor Garden	340	-M	N/A	*	7.8	N/A	*
Summit Creek	1400	3.5	1.7	206	6.3	5.2	121
Turnagain Pass	1880	8.2	4.6	178	15.5	10.1	153
Basin Index (%)		199			115
Matanuska-Susitna Basins
Alexander Lake	160	1.4	N/A	*	2.9	N/A	*
East Palmer	230	-M	N/A	*	-M	N/A	*
Frostbite Bottom	2700	3.6	N/A	*	5.5	N/A	*
Horsepasture Pass	4300	-M	N/A	*	-M	N/A	*
Independence Mine	3550	3.4	N/A	*	5.1	5.6₍₁₈₎	91
Monahan Flat	2710	2.5	N/A	*	2.6	2.6₍₂₅₎	100
Moraine	2100	1.3	0.5₍₁₈₎	260*	3.4	3.2₍₁₈₎	106
Spring Creek	580	-M	N/A	*	1.8	N/A	*
Susitna Valley High	375	1.2	1.8	67	2.5	4.2	60
Tokositna Valley	850	1.5	2.6₍₁₄₎	58	3.1	7.1₍₁₄₎	44
Basin Index (%)		82			74
Northern Cook Inlet
Anchorage Hillside	2080	2.4	1.2₍₁₅₎	200	3.5	4.5₍₁₅₎	78
East Palmer	230	-M	N/A	*	-M	N/A	*
Frostbite Bottom	2700	3.6	N/A	*	5.5	N/A	*
Indian Pass	2350	6.6	4.1	161	8.8	7.9	111
Mcneil River SGS	140	-M	N/A	*	17.1	N/A	*
Moraine	2100	1.3	0.5₍₁₈₎	260*	3.4	3.2₍₁₈₎	106
Mt. Alyeska	1540	4.7	3.3₍₂₉₎	142*	14.0	11.5₍₂₈₎	122
Spring Creek	580	-M	N/A	*	1.8	N/A	*
Basin Index (%)		165			110
Southeast
Flower Mountain	2510	5.8	N/A	*	-M	N/A	*
Heen Latinee	2065	3.4	N/A	*	33.8	N/A	*
Long Lake	850	1.5	3.2₍₂₁₎	47*	34.8	35.2₍₂₁₎	99
Moore Creek Bridge	2250	-M	N/A	*	8.8	9.2₍₁₆₎	96
Basin Index (%)		47*			98
Southwest
Aniak	80	0.8	N/A	*	2.8	3.2₍₁₅₎	88
Checkers Creek	326	-M	N/A	*	-M	N/A	*
Johnsons Camp	25	-M	N/A	*	-M	N/A	*
Pargon Creek	100	-M	N/A	*	-M	1.6₍₂₀₎	*
Rocky Point	250	-M	N/A	*	2.0	2.3₍₁₉₎	87
Basin Index (%)		*			87
Tanana
Chena Lakes	500	1.8	N/A	*	2.3	N/A	*
Chisana	3320	1.7	1.2₍₁₂₎	142	1.8	1.2₍₁₂₎	150
Creamers Field	440	2.0	N/A	*	3.0	N/A	*
Fielding Lake	3000	2.4	N/A	*	2.9	N/A	*
Granite Crk	1240	1.1	1.2	92	1.4	1.4	100
Kantishna	1550	1.7	N/A	*	2.9	2.1₍₁₅₎	138
Little Chena Ridge	2000	4.1	1.8₍₂₉₎	228	4.2	1.9₍₂₉₎	221
Look Eyrie	5040	16.3	N/A	*	-M	N/A	*
Monahan Flat	2710	2.5	N/A	*	2.6	2.6₍₂₅₎	100
Monument Creek	1850	2.8	1.8	156	3.6	2.0	180
Mt. Ryan	2800	4.6	1.7₍₂₉₎	271	3.9	1.8₍₂₉₎	217
Munson Ridge	3100	5.2	3.0	173	3.9	2.9	134
Nenana	415	-M	N/A	*	3.9	N/A	*
Paradise Hill	2010	1.8	N/A	*	1.6	N/A	*
Teuchet Creek	1640	-M	1.6	*	1.6	1.9₍₂₉₎	84
Tok	1630	2.1	N/A	*	2.2	N/A	*
Upper Chena	2850	4.4	2.1₍₂₂₎	210	-M	2.4₍₂₈₎	*
Upper Nome Creek	2520	5.2	N/A	*	5.7	2.0₍₁₄₎	285
Basin Index (%)		187			160
Western Gulf
Cooper Lake	1200	4.0	1.6	250	7.8	8.2	95
Esther Island	50	-M	N/A	*	29.8	27.2₍₁₅₎	110
Exit Glacier	400	1.9	N/A	*	14.2	N/A	*
Grouse Creek Divide	700	2.4	0.8₍₂₂₎	300*	11.7	11.4₍₂₈₎	103
Mt. Eyak	1405	2.8	3.0₍₁₅₎	93	22.8	23.2₍₁₅₎	98
Nicks Valley	4280	-M	N/A	*	-M	N/A	*
Nuchek	50	-M	N/A	*	29.2	N/A	*
Nuka Glacier	1250	-M	N/A	*	17.5	20.8₍₂₉₎	84
Port San Juan	50	-M	N/A	*	29.0	N/A	*
Seal Island	20	-M	N/A	*	12.3	N/A	*
Sugarloaf Mtn	550	-M	N/A	*	8.3	14.1₍₁₃₎	59
Tatitlek	50	-M	N/A	*	12.4	N/A	*
Upper Tsaina River	1750	5.8	3.0₍₁₇₎	193	6.4	7.7₍₁₇₎	83
Basin Index (%)		179			93
Western Interior
Aniak	80	0.8	N/A	*	2.8	3.2₍₁₅₎	88
Atigun Pass	4800	-M	N/A	*	2.9	1.8₍₂₉₎	161
Bettles Field	640	2.0	1.6	125	1.9	2.1	90
Coldfoot	1040	2.4	1.5₍₂₅₎	160	2.5	1.7₍₂₅₎	147
Galena AK	410	1.2	N/A	*	1.3	N/A	*
Gobblers Knob	2030	-M	N/A	*	2.7	2.6₍₂₃₎	104
Hozatka Lake	206	-M	N/A	*	-M	N/A	*
Kanuti Lake	524	-M	N/A	*	-M	N/A	*
McGrath	340	1.7	N/A	*	2.2	N/A	*
Telaquana Lake	1275	1.5	N/A	*	2.6	N/A	*
Basin Index (%)		142			112

-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.