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Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

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


SYNOPSIS: Ongoing Light to occasional moderate snow over portions of western Wyoming is expected to continue this evening with a mix of rain and snow below 7000 feet.  A strong cold front will push across Western Wyoming late tonight into early Wednesday morning with a 3 to 6 hour time frame when snowfall rates around an inch an hour could occur especially over far western Wyoming.  Snow levels will also drop to valley floors with frontal passage.  This strong cold front will push across the rest of the Cowboy State Wednesday bringing much colder temperatures along with some light to moderate snowfall.  The winter storm comes to an end from northwest to southeast Wednesday afternoon and evening.  For snowfall amounts, please check out the graphics below.

  •   Road conditions can be found at wyoroad.info.
  •   Please monitor JHAVALANCHE.org if your plans include travel into the back country.

IMPACTS:

 

Snow and Slick icon Snow causing slick road conditions across the west especially tonight and Wednesday.  The rest of the area will see slick roads after frontal passage on Wednesday

Blowover risk icon

High winds from southeast Fremont County into Natrona County including the Casper area will create a blowover risk for lightweight or high-profile vehicles through Tonight. 
Livestock Image Icon Cold and wet conditions could have a significant impact on young livestock especially in wake of the cold front Tonight and Wednesday.

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Quick View of Hazards (created at 3 PM on 1/9)
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Winter Weather Advisory and Winter Storm Warning across
western Wyoming in effect through Noon Wednesday.  High Wind
Warning
in effect through midnight Tonight.



Snow Forecasts

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Model Forecast of Hourly Precipitation
Darker Blues indicate heavier snow

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Forecast Snowfall
Tonight thru Wednesday Evening

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Wednesday's Forecast Peak Wind Gusts
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High Temperature Forecasts

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Today's High Temperature
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Wednesday's High Temperature
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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)

                        
106
NOUS45 KRIW 300054
PNSRIW
WYZ001>020-022>030-301254-

Public Information Statement
National Weather Service Riverton WY
654 PM MDT Mon Jun 29 2026

...HIGHEST WIND REPORTS MONDAY 29 JUNE 2026...

Gusty winds impacted much of western and central Wyoming
again today. Wind gusts of 35 to 45 mph were widespread
across the area, with the higher gusts occurring between
1PM and 6PM. Below are wind gusts 50 mph and above.

Location                     Speed     Time/Date       Elevation (ft.)

...Wyoming...

...Fremont County...
WY28 South Pass (DOT)        65 MPH    0232 PM 06/29   8195
Skyline (PC)                 63 MPH    1230 PM 06/29   8500
Wind River                   63 MPH    0501 PM 06/29   9235
WY28 Red Canyon (DOT)        62 MPH    1236 PM 06/29   6581
Camp Creek                   57 MPH    0150 PM 06/29   7380

...Hot Springs County...
Thermopolis (CWOP)           57 MPH    0240 PM 06/29   4425
Boysen Peak (AWOS)           54 MPH    0555 PM 06/29   7099
Stagner (PC)                 52 MPH    0610 PM 06/29   7053

...Johnson County...
School House                 58 MPH    1047 AM 06/29   8604
I-25 Tisdale Divide (DOT)    58 MPH    0152 PM 06/29   4990
Tisdale Mtn (PC)             56 MPH    0550 PM 06/29   5557

...Natrona County...
Scenic Dr (PC)               82 MPH    0550 PM 06/29   5827
Claude Creek (PC)            69 MPH    0330 PM 06/29   6282
Muddy Creek (PC)             68 MPH    0350 PM 06/29   5571
Casper Airport (ASOS)        66 MPH    0125 PM 06/29   5348
I-25 Twenty Mile Hill (DOT)  66 MPH    0312 PM 06/29   5656
Fales Rock                   64 MPH    0210 PM 06/29   6379
WY258 Outer Drive (DOT)      63 MPH    0332 PM 06/29   5462
I-25 Hat Six (DOT)           62 MPH    0426 PM 06/29   5157
WY220 Pathfinder (DOT)       61 MPH    0232 PM 06/29   6345
I-25 F Street (DOT)          58 MPH    0546 PM 06/29   5312
Stag Run (PC)                57 MPH    0140 PM 06/29   8095
US20 Natrona (DOT)           57 MPH    0306 PM 06/29   5594
North Platte (PC)            56 MPH    0350 PM 06/29   5990
Casper Mtn                   55 MPH    0152 PM 06/29   7740
Evansville (CWOP)            55 MPH    0624 PM 06/29   5187
Whitcomb Rd (PC)             54 MPH    0540 PM 06/29   7987
Midwest (PC)                 54 MPH    0100 PM 06/29   4974
I-25 Smokey Gap (DOT)        52 MPH    0212 PM 06/29   5161
Coates Rd (PC)               50 MPH    0100 PM 06/29   5866

...Park County...
WY296 Chief J Pass (DOT)     59 MPH    0327 PM 06/29   8084
Irma Lake (PC)               59 MPH    0410 PM 06/29   6222
Mccullough Peaks (PC)        56 MPH    0340 PM 06/29   6077
Cedar Mountain (PC)          53 MPH    0530 PM 06/29   7542
Rattlesnake Mtn              52 MPH    1040 AM 06/29   8401

...Sweetwater County...
Mustang (PC)                 51 MPH    0320 PM 06/29   7060

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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            Road Conditions and Web Cameras
Teton Pass - Hwy 22
Alpine Junction - U.S. Hwy 26/89/191
Jackson
Togwotee Mountain Lodge
Togwotee Pass - U.S. Hwy 26
Dubois
Granite Pass - U.S. Hwy 14
Powder River Pass - U.S. Hwy 16
South Pass - Hwy 28
Cody
Buffalo - I-25/I-90 Interchange
Casper Mountain
Casper
Beaver Rim - U.S. Hwy 287
I-80 - Rock Springs
I-80  - Laramie


                                                                       Click Here to See All Webcams                                                  

If you plan to travel, we recommend checking road conditions along your route and staying on top of road closures here. If you are on Twitter, follow the hashtag: #WyoRoad (or look below) for the latest weather affecting roads and road conditions in and around Wyoming. 

 

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