Arizona 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, February 11, 2019
Basin   Site Name Elev (ft) Snow Water Equivalent Water Year-to-Date Precipitation Current (in) Median (in) Pct of Median Current (in) Median (in) Pct of Median VERDE RIVER BASIN   Baker Butte 7363 2.9    3.2    91    16.7    13.2    127      Baker Butte Smt 7752 8.9    8.4(11) 106    18.3    11.9(11) 154      Bar M 6397 1.0    N/A    *   15.7    N/A    *     Chalender 7035 3.0    2.5(11) 120    10.2    8.2(11) 124      Fort Valley 7371 0.8    0.4(12) 200    8.4    8.4(12) 100      Fry 7236 6.4    5.6    114    14.0    11.0    127      Happy Jack 7539 5.0    4.1(21) 122    13.0    N/A    *     Mormon Mountain 7500 4.4    4.0    110    17.1    12.7    135      Mormon Mtn Summit 8462 8.6    7.2(12) 119    18.7    13.8(12) 136      White Horse Lake 7203 2.8    2.2    127    12.5    10.2    123    Basin Index (%) 114    130    SAN FRANCISCO PEAKS   Snowslide Canyon 9744 16.5    10.9(23) 151    21.9    15.3(23) 143    Basin Index (%) 151    143    CENTRAL MOGOLLON RIM   Baker Butte 7363 2.9    3.2    91    16.7    13.2    127      Baker Butte Smt 7752 8.9    8.4(11) 106    18.3    11.9(11) 154      Heber 7654 3.8    4.0    95    12.8    12.6    102      Promontory 7942 8.5    8.6    99    18.8    15.6    121    Basin Index (%) 100    125    LITTLE COLORADO RIVER BASIN   Baker Butte 7363 2.9    3.2    91    16.7    13.2    127      Baker Butte Smt 7752 8.9    8.4(11) 106    18.3    11.9(11) 154      Baldy 9221 6.4    6.0    107    11.0    9.2    120      Fort Valley 7371 0.8    0.4(12) 200    8.4    8.4(12) 100      Heber 7654 3.8    4.0    95    12.8    12.6    102      Maverick Fork 9220 7.8    6.8    115    11.2    10.3    109      Mormon Mountain 7500 4.4    4.0    110    17.1    12.7    135      Mormon Mtn Summit 8462 8.6    7.2(12) 119    18.7    13.8(12) 136      Nutrioso 8571 0.0    0.0(12) *   3.5    5.0(12) 70      Promontory 7942 8.5    8.6    99    18.8    15.6    121      Snowslide Canyon 9744 16.5    10.9(23) 151    21.9    15.3(23) 143    Basin Index (%) 115    124    SALT RIVER BASIN   Baldy 9221 6.4    6.0    107    11.0    9.2    120      Beaver Head 8076 0.6    2.3(26) 26    7.0    N/A    *     Coronado Trail 8418 2.0    2.4    83    7.9    8.0    99      Hannagan Meadows 9027 9.0    7.9    114    12.6    11.9    106      Hawley Lake 8314 11.2    N/A    *   18.4    N/A    *     Heber 7654 3.8    4.0    95    12.8    12.6    102      Maverick Fork 9220 7.8    6.8    115    11.2    10.3    109      Promontory 7942 8.5    8.6    99    18.8    15.6    121      Wildcat 7868 1.9    2.8    68    9.2    9.2    100      Workman Creek 7032 0.9    4.7    19    15.7    15.0    105    Basin Index (%) 90    108    SAN FRANCISCO / UPPER GILA RIVER BASIN   Beaver Head 8076 0.6    2.3(26) 26    7.0    N/A    *     Coronado Trail 8418 2.0    2.4    83    7.9    8.0    99      Frisco Divide 8013 1.4    2.5    56    6.2    6.0    103      Hannagan Meadows 9027 9.0    7.9    114    12.6    11.9    106      Lookout Mountain 8509 0.2    1.6    12    6.4    5.7    112      Nutrioso 8571 0.0    0.0(12) *   3.5    5.0(12) 70      Signal Peak 8405 0.0    2.6    0    7.7    9.0    86      Silver Creek Divide 9096 7.0    6.6    106    10.7    11.2    96    Basin Index (%) 78    97    CHUSKA MOUNTAINS   Beaver Spring 9255 8.5    8.3(11) 102    12.9    11.6(11) 111      Navajo Whiskey Ck 9064 9.5    7.6(11) 125    11.6    8.9(11) 130    Basin Index (%) 113    120    VIRGIN RIVER BASIN   Gardner Peak 8322 11.6    9.7(16) 120    14.0    10.6(16) 132      Gutz Peak 6763 9.8    7.4(16) 132    18.9    12.3(16) 154      Harris Flat 7792 12.0    4.8    250    11.4    7.5    152      Kolob 9263 20.2    13.5    150    17.7    12.8    138      Little Grassy 6065 4.6    1.8    256    16.3    9.3    175      Long Flat 7982 9.7    5.5    176    12.4    8.4    148      Long Valley Jct 7465 8.7    3.2    272    12.0    7.4    162      Midway Valley 9827 19.5    14.6    134    21.9    13.2    166      Webster Flat 9203 16.0    8.2    195    18.0    11.5    157    Basin Index (%) 163    153

-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.