Arizona 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 Sunday, December 03, 2023
Basin   Site Name Elev (ft) Snow Water Equivalent Percent of Current (in) Today's Median (in) Median Peak (in) Median Peak Date Today's Median Median Peak VERDE RIVER BASIN   Baker Butte 7363 0.7    0.1    6.0    Mar 02 700*   12*     Baker Butte Smt 7752 0.8    1.3(11) 12.9(11) Mar 14(11) 62    6      Bar M 6397 0.0    N/A    N/A    N/A    *   *     Chalender 7035 -M    0.4(11) 3.3(11) Mar 01(11) *   *     Fort Valley 7371 0.2    0.0(12) 2.4(12) Jan 24(12) *   8*     Fry 7236 0.4    0.8    7.8    Mar 05 50    5      Happy Jack 7539 0.0    0.3(21) 6.7(21) Mar 04(21) 0*   0*     Mormon Mountain 7500 1.2    0.6    5.4    Mar 04 200    22      Mormon Mtn Summit 8462 1.4    1.7(12) 8.5(12) Mar 11(12) 82    16      White Horse Lake 7203 -M    0.2    4.2    Feb 29 *   *   Basin Index (%) 98*   SAN FRANCISCO PEAKS   Snowslide Canyon 9744 3.9    4.1(23) 16.8(23) Mar 19(23) 95    23    Basin Index (%) 95    CENTRAL MOGOLLON RIM   Baker Butte 7363 0.7    0.1    6.0    Mar 02 700*   12*     Baker Butte Smt 7752 0.8    1.3(11) 12.9(11) Mar 14(11) 62    6      Heber 7654 0.1    0.6    5.9    Feb 27 17    2      Promontory 7942 0.6    0.9    12.6    Mar 06 67*   5*   Basin Index (%) 76    LITTLE COLORADO RIVER BASIN   Baker Butte 7363 0.7    0.1    6.0    Mar 02 700*   12*     Baker Butte Smt 7752 0.8    1.3(11) 12.9(11) Mar 14(11) 62    6      Baldy 9221 -M    0.8    7.8    Mar 02 *   *     Fort Valley 7371 0.2    0.0(12) 2.4(12) Jan 24(12) *   8*     Heber 7654 0.1    0.6    5.9    Feb 27 17    2      Maverick Fork 9220 0.5    1.4    9.0    Mar 04 36    6      Mormon Mountain 7500 1.2    0.6    5.4    Mar 04 200    22      Mormon Mtn Summit 8462 1.4    1.7(12) 8.5(12) Mar 11(12) 82    16      Nutrioso 8571 -M    0.0(12) 1.3(12) Jan 15(12) *   *     Promontory 7942 0.6    0.9    12.6    Mar 06 67*   5*     Snowslide Canyon 9744 3.9    4.1(23) 16.8(23) Mar 19(23) 95    23    Basin Index (%) 88    SALT RIVER BASIN   Baldy 9221 -M    0.8    7.8    Mar 02 *   *     Beaver Head 8076 0.7    0.2(26) 3.3(26) Feb 21(26) 350*   21*     Coronado Trail 8418 0.3    0.2    3.2    Feb 19 150*   9*     Hannagan Meadows 9027 0.7    1.1    10.2    Mar 08 64    7      Hawley Lake 8314 0.8    N/A    N/A    N/A    *   *     Heber 7654 0.1    0.6    5.9    Feb 27 17    2      Maverick Fork 9220 0.5    1.4    9.0    Mar 04 36    6      Promontory 7942 0.6    0.9    12.6    Mar 06 67*   5*     Wildcat 7868 0.4    0.2    3.5    Feb 22 200*   11*     Workman Creek 7032 0.9    0.2    6.9    Feb 21 450*   13*   Basin Index (%) 88*   SAN FRANCISCO / UPPER GILA RIVER BASIN   Beaver Head 8076 0.7    0.2(26) 3.3(26) Feb 21(26) 350*   21*     Coronado Trail 8418 0.3    0.2    3.2    Feb 19 150*   9*     Frisco Divide 8013 0.6    0.2    3.1    Feb 25 300*   19*     Hannagan Meadows 9027 0.7    1.1    10.2    Mar 08 64    7      Lookout Mountain 8509 0.4    0.2    2.2    Feb 05 200    18      Nutrioso 8571 -M    0.0(12) 1.3(12) Jan 15(12) *   *     Signal Peak 8405 0.3    0.3    3.7    Feb 15 100    8      Silver Creek Divide 9096 1.7    0.7    8.6    Mar 14 243*   20*   Basin Index (%) 162*   CHUSKA MOUNTAINS   Beaver Spring 9255 2.8    1.4(11) 8.6(11) Mar 05(11) 200    33      Navajo Whiskey Ck 9064 2.1    1.0(11) 8.7(11) Mar 10(11) 210    24    Basin Index (%) 204    VIRGIN RIVER BASIN   Gardner Peak 8322 1.9    2.0(16) 13.5(16) Mar 30(16) 95    14      Gutz Peak 6763 0.3    0.8(16) 8.8(16) Mar 08(16) 38    3      Harris Flat 7792 0.8    0.5    8.9    Mar 10 160*   9*     Kolob 9263 1.9    3.0    22.2    Apr 02 63    9      Little Grassy 6065 0.6    0.0    4.6    Feb 23 *   13*     Long Flat 7982 1.2    0.2    7.7    Mar 09 600*   16*     Long Valley Jct 7465 0.6    0.1    5.6    Mar 04 600*   11*     Midway Valley 9827 2.7    3.9    25.4    Apr 13 69    11      Webster Flat 9203 1.7    2.1    14.2    Mar 21 81    12    Basin Index (%) 93

-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.