Winter Storm Watch issued March 4 at 12:58AM MST until March 7 at 5:00AM MST by NWS Riverton WY
* WHAT...Heavy snow possible. Total snow accumulations between 4 and 10 inches possible. Higher amounts up to 12 inches possible for the Lander Foothills, especially up toward Sinks Canyon. Winds could gust as high as 40 mph. * WHERE...Lander Foothills, Natrona County Lower Elevations, Upper Wind River Basin, and Wind River Basin. * WHEN...From late Wednesday night through late Thursday night. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Thursday morning and evening commutes.
Hydrologic Outlook issued February 26 at 12:40PM MST by NWS Riverton WY
ESFRIW Low elevation snowpack of around 2 to 8 inches exists across much of the northern portion of the Bighorn Basin including mountain foothills. This snowpack contains an estimated 1 to 3 inches of Snow Water Equivalent (SWE). Warmer temperatures occur Thursday through Sunday with highs nearing or exceeding 50 degrees (Feb 27 - Mar 2). The upcoming warm temperatures, combined with the low elevation snowpack, could result in melting and injection into local rivers and streams. Ice break up on the Bighorn and Nowood Rivers is possible as well, and could lead to ice jamming and potential resultant flooding.
Hydrologic Outlook issued February 25 at 12:13PM MST by NWS Riverton WY
ESFRIW Low elevation snowpack of around 2 to 8 inches exists across much of the northern portion of the Bighorn Basin including mountain foothills. This snowpack contains an estimated 1 to 3 inches of Snow Water Equivalent (SWE). Temperatures are expected to be in mid-30s to around 40 degrees Monday through Wednesday. Warmer temperatures occur Thursday through Sunday (Feb 27 - Mar 2). The upcoming warm temperatures, combined with the low elevation snowpack, could result in melting and injection into local rivers and streams. Ice break up on the Bighorn and Nowood Rivers is possible as well, and could lead
High Wind Warning issued February 24 at 4:44PM MST until February 25 at 6:00PM MST by NWS Riverton WY
* WHAT...West to southwest winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 7 AM to 6 PM MST Tuesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles.
Hydrologic Outlook issued February 24 at 11:43AM MST by NWS Riverton WY
ESFRIW Low elevation snowpack of around 2 to 8 inches exists across much of the northern portion of the Bighorn Basin including mountain foothills. This snowpack contains an estimated 1 to 3 inches of Snow Water Equivalent (SWE). Temperatures are expected to be in mid-30s to around 40 degrees Monday through Wednesday. Warmer temperatures occur Thursday through Sunday (Feb 27 - Mar 2). The upcoming warm temperatures, combined with the low elevation snowpack, could result in melting and injection into local rivers and streams. Ice break up on the Bighorn and Nowood Rivers is possible as well, and could lead
Hydrologic Outlook issued February 23 at 1:34PM MST by NWS Riverton WY
ESFRIW Low elevation snowpack of around 4 to 10 inches exists across much of the northern portion of the Bighorn Basin including Greybull, Lovell, Powell, and Cody. This snowpack contains an estimated 1 to 3 inches of Snow Water Equivalent (SWE). Temperatures beginning are expected to climb into the low 40s to near 50 degrees each afternoon through next weekend. Warmest temperatures look to occur Friday through Sunday (Feb 28 - Mar 2). The warm temperatures, combined with the significant low elevation snowpack, could result in significant melting and injection into local rivers and streams. Ice break up on the
High Wind Warning issued February 23 at 11:33AM MST until February 24 at 5:00PM MST by NWS Riverton WY
* WHAT...West winds 30 to 45 mph with widespread gusts up to 60 mph. Areas of gusts near 70 mph possible, especially over the eastern side of the range. * WHERE...Absaroka Mountains. * WHEN...Until 5 PM MST Monday. * IMPACTS...Travel may be difficult. Periods of snow could create reduced visibilities from blowing snow. Motorists should be aware of sudden and strong crosswinds, especially near Chief Joseph.
Winter Storm Warning issued February 23 at 11:28AM MST until February 24 at 11:00AM MST by NWS Riverton WY
* WHAT...Snow expected. Total snow accumulations between 7 and 14 inches, with 18 to 28 inches for the higher elevations of the Teton Mountains. Winds gusting as high as 40 mph. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 11 AM MST Monday. * IMPACTS...Travel could be very difficult due to falling and blowing snow over mountain passes, such as Teton and Togwotee Passes.
Winter Weather Advisory issued February 23 at 11:28AM MST until February 24 at 11:00AM MST by NWS Riverton WY
* WHAT...Snow expected. Total snow accumulations between 3 and 8 inches. Total snow accumulations for southern Yellowstone, including the Pitchstone Plateau, of 10 to 18 inches. Winds gusting as high as 40 mph, with isolated gusts to 50 mph. * WHERE...Yellowstone National Park. * WHEN...Until 11 AM MST Monday. * IMPACTS...Travel will be difficult, especially in the backcountry. * ADDITIONAL DETAILS...Total snow accumulations up to an inch around Mammoth. Snow accumulations for the higher elevations of eastern Yellowstone 6 to 10 inches, such as near East Entrance.
Hydrologic Outlook issued February 22 at 12:30PM MST by NWS Riverton WY
ESFRIW Low elevation snowpack of around 4 to 12 inches exists across much of the northern portion of the Bighorn Basin including Greybull, Lovell, Powell, and Cody. This snowpack contains an estimated 2 to 4 inches of Snow Water Equivalent (SWE). Temperatures beginning Sunday are expected to climb into the low 40s to near 50 degrees. The warm temperatures are expected to persist through at least the middle of next week. The warm temperatures, combined with the significant low elevation snowpack, could result in significant melting and injection into local rivers and streams. Ice break up on the Bighorn and