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 Tuesday, April 16, 2024
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 0.1    0.0    6.0    Mar 02 *   2*     Baker Butte Smt 7752 18.9    6.8(11) 12.9(11) Mar 14(11) 278    147      Bar M 6397 0.3    N/A    N/A    N/A    *   *     Chalender 7035 -M    0.0(11) 3.3(11) Mar 01(11) *   *     Fort Valley 7371 0.0    0.0(12) 2.4(12) Jan 24(12) *   0*     Fry 7236 -M    0.0    7.8    Mar 05 *   *     Happy Jack 7539 0.2    0.0(21) 6.7(21) Mar 04(21) *   3*     Mormon Mountain 7500 0.1    0.0    5.4    Mar 04 *   2*     Mormon Mtn Summit 8462 8.6    1.2(12) 8.5(12) Mar 11(12) 717    101      White Horse Lake 7203 -M    0.0    4.2    Feb 29 *   *   Basin Index (%) 349*   SAN FRANCISCO PEAKS   Snowslide Canyon 9744 20.4    12.2(23) 16.8(23) Mar 19(23) 167    121    Basin Index (%) 167    CENTRAL MOGOLLON RIM   Baker Butte 7363 0.1    0.0    6.0    Mar 02 *   2*     Baker Butte Smt 7752 18.9    6.8(11) 12.9(11) Mar 14(11) 278    147      Heber 7654 0.2    0.0    5.9    Feb 27 *   3*     Promontory 7942 -M    0.0    12.6    Mar 06 *   *   Basin Index (%) 282*   LITTLE COLORADO RIVER BASIN   Baker Butte 7363 0.1    0.0    6.0    Mar 02 *   2*     Baker Butte Smt 7752 18.9    6.8(11) 12.9(11) Mar 14(11) 278    147      Baldy 9221 0.8    0.0    7.8    Mar 02 *   10*     Fort Valley 7371 0.0    0.0(12) 2.4(12) Jan 24(12) *   0*     Heber 7654 0.2    0.0    5.9    Feb 27 *   3*     Maverick Fork 9220 3.6    0.0    9.0    Mar 04 *   40*     Mormon Mountain 7500 0.1    0.0    5.4    Mar 04 *   2*     Mormon Mtn Summit 8462 8.6    1.2(12) 8.5(12) Mar 11(12) 717    101      Nutrioso 8571 -M    0.0(12) 1.3(12) Jan 15(12) *   *     Promontory 7942 -M    0.0    12.6    Mar 06 *   *     Snowslide Canyon 9744 20.4    12.2(23) 16.8(23) Mar 19(23) 167    121    Basin Index (%) 261*   SALT RIVER BASIN   Baldy 9221 0.8    0.0    7.8    Mar 02 *   10*     Beaver Head 8076 -M    0.0(26) 3.3(26) Feb 21(26) *   *     Coronado Trail 8418 0.0    0.0    3.2    Feb 19 *   0*     Hannagan Meadows 9027 5.4    0.0    10.2    Mar 08 *   53*     Hawley Lake 8314 12.9    N/A    N/A    N/A    *   *     Heber 7654 0.2    0.0    5.9    Feb 27 *   3*     Maverick Fork 9220 3.6    0.0    9.0    Mar 04 *   40*     Promontory 7942 -M    0.0    12.6    Mar 06 *   *     Wildcat 7868 0.1    0.0    3.5    Feb 22 *   3*     Workman Creek 7032 -M    0.0    6.9    Feb 21 *   *   Basin Index (%) *   SAN FRANCISCO / UPPER GILA RIVER BASIN   Beaver Head 8076 -M    0.0(26) 3.3(26) Feb 21(26) *   *     Coronado Trail 8418 0.0    0.0    3.2    Feb 19 *   0*     Frisco Divide 8013 0.1    0.0    3.1    Feb 25 *   3*     Hannagan Meadows 9027 5.4    0.0    10.2    Mar 08 *   53*     Lookout Mountain 8509 0.2    0.0    2.2    Feb 05 *   9*     Nutrioso 8571 -M    0.0(12) 1.3(12) Jan 15(12) *   *     Signal Peak 8405 -M    0.0    3.7    Feb 15 *   *     Silver Creek Divide 9096 6.5    0.4    8.6    Mar 14 1625*   76*   Basin Index (%) 3050*   CHUSKA MOUNTAINS   Beaver Spring 9255 7.8    0.0(11) 8.6(11) Mar 05(11) *   91*     Navajo Whiskey Ck 9064 3.1    0.0(11) 8.7(11) Mar 10(11) *   36*   Basin Index (%) *   VIRGIN RIVER BASIN   Gardner Peak 8322 4.5    10.2(16) 13.5(16) Mar 30(16) 44    33      Gutz Peak 6763 0.0    0.0(16) 8.8(16) Mar 08(16) *   0*     Harris Flat 7792 0.2    0.0    8.9    Mar 10 *   2*     Kolob 9263 19.2    20.4    22.2    Apr 02 94    86      Little Grassy 6065 -M    0.0    4.6    Feb 23 *   *     Long Flat 7982 0.0    0.0    7.7    Mar 09 *   0*     Long Valley Jct 7465 -M    0.0    5.6    Mar 04 *   *     Midway Valley 9827 23.4    22.4    25.4    Apr 13 104    92      Webster Flat 9203 13.6    6.2    14.2    Mar 21 219    96    Basin Index (%) 103*

-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.