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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

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SYNOPSIS:

Saturday & Saturday evening:  A stronger, but warmer system is expected to impact the Cowboy State. The bulk of the precipitation is expected to impact the western and southern portions of the area. Significant mountain snow/valley rain could occur over the west and southwest with this system with rain expected up to 9000 feet.  A few thunderstorms are possible Saturday afternoon and evening which could produce heavy downpours. The rainfall in the western valleys on a melting snowpack, and some frozen ground could cause localized flooding across the western valleys Saturday.  Although the heaviest of the precipitation will end Saturday night, the localized flooding threat could continue over the far west into the day Sunday.

IMPACTS:

  • Localized flooding possible across the western Valleys Saturday & Sunday


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Quick View of Hazards and Forecast Precipitation Totals (created at 6 AM on 4/7)
Click to enlarge Click to enlarge

Click Image To Enlarge
â–º Flood Advisory for the Jackson Hole Valley
until 1145 AM Sunday

â–º Flood Watch for the Star Valley
from Noon Saturday through Sunday Afternoon

Click Image To Enlarge
Expected Precipitation
Saturday & Saturday Night
(Mainly Rainfall below 9000 feet)

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Snow Totals and Wind Reports will be posted and updated here once the storm occurs
(Please double check date and time of product)

                        
311
NOUS45 KRIW 302324
PNSRIW
WYZ001>020-022>030-311119-

Public Information Statement
National Weather Service Riverton WY
419 PM MST Mon Dec 30 2024

...Snowfall Reports December 28th to 30th...

An atmospheric river brought multiple days of continued moisture to
the area, mainly across the western Wyoming mountains and valleys.
Below are total snow amounts from Saturday, December 28th through
Monday morning December 30th.

Location                     Amount    Time/Date    Elevation (ft.)

...Wyoming...

...Big Horn County...
19 N Shell                   5.0 in    0300 PM 12/30   9372
17 E Shell                   4.0 in    0300 PM 12/30   9571
14 NE Shell                  4.0 in    0300 PM 12/30   9355
Deaver                        T in     0300 PM 12/30   4110

...Fremont County...
11 N Dubois                  15.0 in   0300 PM 12/30   8658
23 NW Dubois                 13.0 in   0300 PM 12/30   9347
16 NE Dubois                 10.0 in   0300 PM 12/30   8410
10 NNW South Pass City       6.0 in    0300 PM 12/30   9674
7 NNW South Pass City        5.0 in    0300 PM 12/30   8941
14 SW Fort Washakie          5.0 in    0300 PM 12/30   10067
6 WSW Dubois                 4.0 in    0300 PM 12/30   9419
11 WSW Burris                4.0 in    0300 PM 12/30   9909
12 NNW Shoshoni              1.0 in    0300 PM 12/30   4859
1 WNW Dubois                 1.0 in    0300 PM 12/30   6947
6 ESE Dubois                 0.5 in    0300 PM 12/30   6657
1 NE Riverton                 T in     0300 PM 12/30   4949

...Hot Springs County...
23 WSW Hamilton Dome         3.0 in    0300 PM 12/30   8905
15 WSW Hamilton Dome          T in     0300 PM 12/30   6608
1 WSW Lucerne                 T in     0300 PM 12/30   4429

...Johnson County...
18 WNW Buffalo               3.0 in    0300 PM 12/30   9860
27 WNW Buffalo               2.0 in    0300 PM 12/30   8543
16 W Buffalo                 1.0 in    0300 PM 12/30   8691
15 WSW Buffalo               1.0 in    0300 PM 12/30   8300
14 WNW Mayoworth             1.0 in    0300 PM 12/30   8065
Kaycee                        T in     0300 PM 12/30   4669

...Lincoln County...
3 SE Turnerville             23.0 in   0300 PM 12/30   8219
16 ENE Turnerville           19.0 in   0300 PM 12/30   8796
6 ENE Smoot                  17.0 in   0300 PM 12/30   8380
10 ESE Smoot                 17.0 in   0300 PM 12/30   9378
15 ESE Smoot                 16.0 in   0300 PM 12/30   9033
21 NE Cokeville              16.0 in   0300 PM 12/30   9329
8 S Smoot                    14.0 in   0300 PM 12/30   7577
15 NNE Cokeville             14.0 in   0300 PM 12/30   8368
5 SSE Smoot                  14.0 in   0300 PM 12/30   6971
10 ENE Turnerville           13.0 in   0300 PM 12/30   6642
16 ENE Turnerville           12.0 in   0300 PM 12/30   9022
15 ENE Cokeville             10.0 in   0300 PM 12/30   7886
1 SE Thayne                  9.3 in    0300 PM 12/30   6079
4 NE Thayne                  9.0 in    0300 PM 12/30   6199
4 NNE Thayne                 7.1 in    0300 PM 12/30   6247
3 N Etna                     6.8 in    0300 PM 12/30   5929
Afton                        5.3 in    0300 PM 12/30   6249

...Natrona County...
22 SE Casper                 7.0 in    0300 PM 12/30   8401
1 WSW Casper                 3.5 in    0300 PM 12/30   5200
20 N Arminto                 3.0 in    0300 PM 12/30   8590
1 E Casper                   2.7 in    0300 PM 12/30   5279
2 ENE Casper                 2.7 in    0300 PM 12/30   5254
2 SSW Casper                 2.5 in    0300 PM 12/30
7 S Casper                   2.0 in    0300 PM 12/30   8081
1 NW Casper                  1.5 in    0300 PM 12/30   5138
4 NW Mills                   1.5 in    0300 PM 12/30   5278

...Park County...
13 WSW Sunlight Basin        17.0 in   0300 PM 12/30   9358
12 SE Pahaska                13.0 in   0300 PM 12/30   9643
16 N Pahaska                 12.0 in   0300 PM 12/30   9327
7 NW Sunlight Basin          10.0 in   0300 PM 12/30   8031
14 N Sunlight Basin          10.0 in   0300 PM 12/30   9361
19 SW Valley                 7.0 in    0300 PM 12/30   8546
2 WSW East Entrance          7.0 in    0300 PM 12/30   7352
8 W East Entrance            7.0 in    0300 PM 12/30   8416
1 SW Canyon                  7.0 in    0300 PM 12/30   7868
20 SW Pitchfork              6.0 in    0300 PM 12/30   9784
Tower Junction               4.1 in    0300 PM 12/30   6268
6 SW Pitchfork               2.0 in    0300 PM 12/30   7925
15 SE Wapiti                 2.0 in    0300 PM 12/30   8918
5 NNE Meeteetse              0.1 in    0300 PM 12/30   5518
3 WSW Wapiti                  T in     0300 PM 12/30   5882
3 NNW Clark                   T in     0300 PM 12/30   4343
2 SE Meeteetse                T in     0300 PM 12/30   6068
2 NE Cody                     T in     0300 PM 12/30   4938
2 ENE Ralston                 T in     0300 PM 12/30   4504
2 WSW Cody                    T in     0300 PM 12/30   5158
3 NNE Clark                   T in     0300 PM 12/30   4145

...Sublette County...
17 ESE Turnerville           23.0 in   0300 PM 12/30   8500
14 E Bondurant               13.0 in   0300 PM 12/30   8202
20 E Bondurant               11.0 in   0300 PM 12/30   7730
20 NW Calpet                 10.0 in   0300 PM 12/30   8065
12 ESE Bondurant             9.0 in    0300 PM 12/30   7953
11 NNE Pinedale              9.0 in    0300 PM 12/30   9016
12 N Cora                    8.0 in    0300 PM 12/30   8392
16 SW Dubois                 8.0 in    0300 PM 12/30   9716
17 WNW South Pass City       7.0 in    0300 PM 12/30   8878
11 E Big Sandy               6.0 in    0300 PM 12/30   9082
5 NW Daniel                  6.0 in    0300 PM 12/30   7345
6 WNW Cora                   5.4 in    0300 PM 12/30   7461

...Sweetwater County...
Wamsutter                    1.5 in    0300 PM 12/30   6732

...Teton County...
5 N South Entrance           22.0 in   0300 PM 12/30   7881
8 W South Entrance           21.0 in   0300 PM 12/30   7357
5 ENE Alta                   18.5 in   0300 PM 12/30   8807
4 WNW Teton Village          18.0 in   0300 PM 12/30   9634
3 NW Teton Village           16.0 in   0300 PM 12/30   9657
8 NNE Moran Junction         15.0 in   0300 PM 12/30   7677
3 NW Teton Village           15.0 in   0300 PM 12/30   8225
23 ESE Moran Junction        14.0 in   0300 PM 12/30   9624
2 NW Wilson                  14.0 in   0300 PM 12/30   8020
19 NE Bondurant              13.0 in   0300 PM 12/30   8768
10 N Bondurant               13.0 in   0300 PM 12/30   6904
22 E South Entrance          13.0 in   0300 PM 12/30   9320
16 E Moran Junction          13.0 in   0300 PM 12/30   9190
6 NNW Moose                  11.0 in   0300 PM 12/30   9580
South Entrance               10.0 in   0300 PM 12/30   7005
2 SSW Grant Village          8.0 in    0300 PM 12/30   7967
1 S Jackson                  7.0 in    0300 PM 12/30   7808
Moose                        7.0 in    0300 PM 12/30   6458
2 NW Teton Village           6.0 in    0300 PM 12/30   6611
2 NNE Teton Village          5.5 in    0300 PM 12/30   6338
2 SSW Teton Village          4.0 in    0300 PM 12/30   6221
Kelly                        3.0 in    0300 PM 12/30   6650
1 N Alta                     1.5 in    0300 PM 12/30   6446
19 NE Bondurant              1.4 in    0300 PM 12/30   8192

...Washakie County...
12 SE Big Trails             5.0 in    0300 PM 12/30   7628
18 ENE Ten Sleep             3.0 in    0300 PM 12/30   9455
Winchester                    T in     0300 PM 12/30   4213
5 N Ten Sleep                 T in     0300 PM 12/30   4749

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.

$$



                

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