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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. 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)

                        
115
NOUS45 KRIW 200605
PNSRIW
WYZ001>020-022>030-201801-

Public Information Statement
National Weather Service Riverton WY
1101 PM MST Tue Nov 19 2024

...Snowfall Totals from Sunday Evening through Monday Night...

A weak weather system moved through the region, bringing snow to
many locations across western and central Wyoming. Below are
snowfall reports of one inch or greater.

Location                     Amount     Elevation (ft.)

...Big Horn County...
19 N Shell                   11.0 in    9372
17 E Shell                   6.0 in     9571
14 NE Shell                  4.0 in     9355

...Fremont County...
23 NW Dubois                 4.5 in     9347
6 WSW Dubois                 2.0 in     9419
7 NNW South Pass City        2.0 in     8941
1 WNW Dubois                 1.0 in     6947
15 W Fort Washakie           1.0 in     8426

...Johnson County...
27 WNW Buffalo               7.0 in     8543
18 WNW Buffalo               4.0 in     9860
14 WNW Mayoworth             3.0 in     8065
16 W Buffalo                 2.0 in     8691
15 WSW Buffalo               1.0 in     8300

...Lincoln County...
10 ESE Smoot                 13.0 in    9378
3 SE Turnerville             13.0 in    8219
15 ESE Smoot                 9.0 in     9033
6 ENE Smoot                  7.0 in     8380
10 ENE Turnerville           6.0 in     6642
1 SE Thayne                  6.0 in     6079
16 ENE Turnerville           6.0 in     8796
4 NE Thayne                  5.3 in     6199
4 NNE Thayne                 5.2 in     6247
16 ENE Turnerville           5.0 in     9022
3 N Etna                     3.2 in     5929
5 SSE Smoot                  3.0 in     6971
21 NE Cokeville              3.0 in     9329
Afton                        2.9 in     6249
15 ENE Cokeville             2.0 in     7886
15 NNE Cokeville             2.0 in     8368
8 S Smoot                    2.0 in     7577
2 NNW Turnerville            2.0 in     6346
2 SSW Fossil Butte National  1.6 in     6787
Fossil Butte                 1.1 in     6785

...Natrona County...
20 N Arminto                 1.0 in     8590

...Park County...
2 WSW East Entrance          5.0 in     7352
16 N Pahaska                 5.0 in     9327
12 SE Pahaska                5.0 in     9643
13 WSW Sunlight Basin        5.0 in     9358
19 SW Valley                 4.0 in     8546
Tower Junction               3.5 in     6268
1 SW Canyon                  2.0 in     7868
8 W East Entrance            2.0 in     8416
14 N Sunlight Basin          2.0 in     9361
20 SW Pitchfork              2.0 in     9784
7 NW Sunlight Basin          2.0 in     8031
2 WSW Cody                   1.0 in     5158
6 SW Pitchfork               1.0 in     7925

...Sublette County...
17 ESE Turnerville           7.0 in     8500
20 NW Calpet                 4.0 in     8065
14 E Bondurant               3.0 in     8202
11 NNE Pinedale              2.0 in     9016
16 SW Dubois                 2.0 in     9738
20 E Bondurant               2.0 in     7730
17 WNW South Pass City       2.0 in     8878
3 W Boulder                  1.0 in     6945
11 E Big Sandy               1.0 in     9082
12 N Cora                    1.0 in     8392

...Sweetwater County...
Wamsutter                    2.0 in     6740
Wamsutter                    2.0 in     6732
7 SSE Rock Springs           1.1 in     6769
2 NNE Farson                 1.0 in     6624
1 NNW Green River            1.0 in     6086

...Teton County...
5 ENE Alta                   15.0 in    8807
6 ENE Alta                   14.0 in    9259
3 NW Teton Village           12.0 in    9657
4 WNW Teton Village          12.0 in    9634
3 NW Teton Village           10.0 in    8225
6 NNW Moose                  10.0 in    9580
4 WNW Moran Junction         9.0 in     6806
5 N South Entrance           8.0 in     7881
8 W South Entrance           8.0 in     7357
2 NW Wilson                  8.0 in     8020
16 E Moran Junction          6.0 in     9190
23 ESE Moran Junction        6.0 in     9624
2 NW Teton Village           5.0 in     6611
South Entrance               5.0 in     7005
2 NNE Teton Village          4.3 in     6338
2 SSW Teton Village          4.2 in     6221
1 S Jackson                  4.0 in     7808
8 NNE Moran Junction         4.0 in     7677
10 N Bondurant               4.0 in     6904
Jackson                      3.8 in     6210
Jackson                      3.6 in     6263
2 SSW Grant Village          3.0 in     7967
Moose                        2.7 in     6458
Jackson 12 NE                2.0 in     6663
Kelly                        2.0 in     6650
22 E South Entrance          2.0 in     9320
3 SSW Wilson                 2.0 in     7002
19 NE Bondurant              2.0 in     8768
1 N Lake                     1.0 in     7893
1 N Alta                     1.0 in     6446

...Washakie County...
12 SE Big Trails             4.0 in     7628
18 ENE Ten Sleep             3.0 in     9455

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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