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Dangerous Heat Expands; Heavy Rainfall Threats; Fire Weather Concerns for the West

The heat will increase and expand across the Central Plains, Mississippi Valley, Southeast and into the Eastern U.S. through the week as high pressure builds across the eastern two-thirds of the country. On the northern periphery of this heat, the threat for severe thunderstorms and heavy rainfall across the northern Plains and upper Midwest through Tuesday. Critical Fire Weather for the west. Read More >

Summary | Forecast | Observed Snow and Wind | Travel Center | Monitoring & Reporting | Safety


SYNOPSIS: Areas of light to moderate snow will continue across most of Wyoming today, and across the southern half of the state thru this evening.  Snow will taper off across the area overnight, leaving bitter cold temperatures across the area through Wednesday.  Low temperatures will be mostly from -15F to -25F across north and central Wyoming Tuesday morning. 

IMPACTS:


Current Radar and Forecast of Heavier Snowfall
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Heavier areas of snow in darker blues and green colors.

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Weather model simulation of snow development across
the area from 5 am Monday until midnight Monday night.
Expected heavier snow bands depicted in darker blue
shades. 

 

Video Briefing
Created at 3 PM on February 18th

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Winter Storm  Warnings and Advisories
are in effect Tonight into Monday

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New snowfall expected from
5 PM Sunday until 5 PM Monday


Quick View of Expected High and Low Temperatures Monday and Tuesday
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Forecast High Temperatures
on Monday, February 19th.

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Forecast Low Temperatures on
Tuesday Morning, February 20th

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Forecast High Temperatures
on Tuesday, February 20th.

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Forecast Low Temperatures on
Wednesday Morning, February 21st

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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)

                        
647
NOUS45 KRIW 161820
PNSRIW
WYZ001>020-022>030-170620-

Public Information Statement
National Weather Service Riverton WY
1220 PM MDT Wed Jul 16 2025

...Widespread Rainfall Tuesday afternoon and evening...

A cold front, combined with a strong mositure surge, brout widespread
showers and thunderstorms to much of Wyoming on Tuesday. Nearly
everyone got some rainfall with the exception of portions of south-
west WY. Some locations that saw training thunderstorms received over
one inch of rain, while others were only skirted by thunderstorms and
received minimal rainfall. A selection of rainfall reports are
below.

...PRECIPITATION REPORTS...

Location                     Amount    Time/Date       Elevation (ft.)

...Big Horn County...
Lovell 0.5 ESE               0.62 in   0723 AM 07/16   3829
Lovell 0.7 S                 0.55 in   0800 AM 07/16   3906
Lovell                       0.51 in   0700 AM 07/16   3848
Deaver                       0.39 in   0800 AM 07/16   4105
Cowley 0.3 NNE               0.29 in   0722 AM 07/16   4016
Lovell 2.2 S                 0.29 in   0800 AM 07/16   3928
Byron 2.9 WSW                0.25 in   0700 AM 07/16
Greybull 12.9 ENE            0.21 in   0600 AM 07/16   4169

...Fremont County...
Lander 9.1 NNW               1.15 in   0640 AM 07/16   5509
Fort Washakie 3.7 SE         0.49 in   0600 AM 07/16   5548
Hudson 0.1 NNE               0.37 in   0700 AM 07/16   5108
Lander 2NNW                  0.31 in   0700 AM 07/16   5352
Dubois                       0.28 in   0600 AM 07/16   6955
Shoshoni 13 NW               0.24 in   0800 AM 07/16   4760
5 ESE Dubois                 0.19 in   0800 AM 07/16
Pavillion 5.8 E              0.11 in   0700 AM 07/16   5322
Lander 7WNW                  0.06 in   0630 AM 07/16   6042
Lander 5.9 SSE               0.06 in   0700 AM 07/16   5556
Lander 5.1 SW                0.06 in   0700 AM 07/16   5980
Riverton 5.4 W               0.06 in   0800 AM 07/16
Riverton 2.2 WSW             0.04 in   0800 AM 07/16   5033
Riverton 1.9 W               0.04 in   0800 AM 07/16   5123
Riverton 2 W                 0.03 in   0700 AM 07/16   5073
Riverton                     0.03 in   0700 AM 07/16   4955

...Hot Springs County...
Thermopolis 33.2 W           0.51 in   0700 AM 07/16
Kirby                        0.36 in   0800 AM 07/16   4352
Thermopolis 6 NNE            0.30 in   0700 AM 07/16   4434
Thermopolis 18.6 E           0.25 in   0800 AM 07/16   4879
Thermopolis 9NE              0.15 in   0700 AM 07/16   4282

...Johnson County...
Kaycee - Coop                0.34 in   0700 AM 07/16   4660
Buffalo 2NE                  0.33 in   0800 AM 07/16   4770
Buffalo 0.6 E                0.30 in   0700 AM 07/16   4696
Buffalo 13 SSE               0.30 in   0700 AM 07/16   4819
Buffalo 4 SSW                0.28 in   0700 AM 07/16   5262
Kaycee 17 NNW                0.27 in   0700 AM 07/16   5056
Buffalo 4.0 N                0.25 in   0600 AM 07/16   4685
Kaycee 10.9 WNW              0.16 in   0700 AM 07/16   5481
Kaycee 14.6 W                0.15 in   0700 AM 07/16
Kaycee 5.2 NNW               0.15 in   0700 AM 07/16

...Lincoln County...
Smoot 5 SSE                  0.13 in   0700 AM 07/16   7005
Bedford 1.8 S                 T in     0700 AM 07/16   6302
Star Valley Ranch 1.0 S       T in     0700 AM 07/16   6204
Afton                         T in     0800 AM 07/16   6248
Star Valley Ranch             T in     0800 AM 07/16   6253

...Natrona County...
Casper 5 SSW                 1.06 in   0700 AM 07/16   6262
Casper 1S                    0.93 in   0700 AM 07/16   5522
Casper 0.7 WSW               0.71 in   0700 AM 07/16
Casper 1.7 W                 0.68 in   0700 AM 07/16   5146
Casper 1.5 SW                0.58 in   0600 AM 07/16
Casper 1.2 E                 0.57 in   0800 AM 07/16
Casper 2.8 ENE               0.54 in   0800 AM 07/16   5202
Casper 0.7 NE                0.52 in   0700 AM 07/16   5179
Casper 2 SW                  0.48 in   0800 AM 07/16   5434
Casper 2.0 ENE               0.46 in   0600 AM 07/16   5252
Casper 7.5 W                 0.36 in   0630 AM 07/16   5361
Casper 7.1 SW                0.28 in   0530 AM 07/16   5415
Lysite 12 NE                 0.20 in   0700 AM 07/16   6045

...Park County...
Meeteetse 2.0 SE             0.31 in   0700 AM 07/16   6071
Meeteetse 0.2 NE             0.20 in   0700 AM 07/16   5807
Powell 4 ENE                 0.19 in   0630 AM 07/16   4288
Cody 5.3 E                   0.19 in   0700 AM 07/16
Clark 3NE                    0.19 in   0800 AM 07/16   4117
Powell 24.2 WNW              0.19 in   0800 AM 07/16
Cody 2.9 ESE                 0.18 in   0700 AM 07/16
Cody 2NE                     0.18 in   0700 AM 07/16   4939
Cody 1SE                     0.18 in   0700 AM 07/16   5102
Powell 0.2 ESE               0.16 in   0730 AM 07/16   4392
Cody 20.9 W                  0.14 in   0600 AM 07/16   5815
Powell 5E                    0.14 in   0700 AM 07/16   4276
Cody 2WSW                    0.12 in   0700 AM 07/16   5161
6 SW Ralston                 0.12 in   0700 AM 07/16
Cody 7NE                     0.12 in   0700 AM 07/16   4787
Cody 7.2 NNE                 0.10 in   0500 AM 07/16   4859
Powell 4.0 WSW               0.10 in   0630 AM 07/16
Tower Falls                  0.09 in   0800 AM 07/16   6275

...Sublette County...
Pinedale 26 NNW              0.17 in   0800 AM 07/16   7687
Cora 14.2 N                  0.16 in   0700 AM 07/16   7740
Pinedale 14 NW               0.03 in   0600 AM 07/16   7464
Boulder Rearing Station       T in     0800 AM 07/16   6940

...Sweetwater County...
Green River 1 SSE             T in     0630 AM 07/16   6241
Green River 0.5 NNW           T in     0700 AM 07/16   6185

...Teton County...
Jackson 12 NE                0.63 in   0809 AM 07/16   6663
Jackson 5 NW                 0.57 in   0700 AM 07/16   6217
Jackson 7.8 N                0.50 in   0715 AM 07/16
Jackson 0.3 ENE              0.49 in   0700 AM 07/16   6264
Wilson 1.0 SE                0.45 in   0700 AM 07/16   6155
Teton Village 2 NE           0.44 in   0600 AM 07/16   6339
Wilson 3 SSW                 0.29 in   0800 AM 07/16   7010
Grant Village 0.8 E          0.14 in   0700 AM 07/16   7807
Bechler Ranger Station       0.12 in   0730 AM 07/16   6432

...Washakie County...
Ten Sleep                    0.42 in   0700 AM 07/16   4426
Winchester                   0.33 in   0700 AM 07/16   4216
Ten Sleep 27 S               0.23 in   0800 AM 07/16   5002
Worland 8 SW                 0.20 in   0600 AM 07/16   4136
Worland 2 NE                 0.17 in   0700 AM 07/16   4089
Worland - COOP               0.16 in   0700 AM 07/16   4058
Worland 2.3 NE               0.15 in   0700 AM 07/16
Worland 1 W                  0.15 in   0800 AM 07/16   4052
Ten Sleep 5 NNW              0.11 in   0700 AM 07/16   4531
Worland 9.6 N                0.04 in   0700 AM 07/16   4043

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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