Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Flood Watch |
| Area(s): | East Glacier Park Region |
| Effective: | 2026-06-28 @ 2:11 pm -> 2026-06-29 @ 7:00 am |
| Onset: | 2026-06-28 @ 4:00 pm -> 2026-06-30 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2026-06-28 @ 2:11 pm |
| Headline: | Flood Watch issued June 28 at 1:11PM MDT until June 30 at 12:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...A portion of north central Montana, including the following area, East Glacier Park Region, including the east side of Glacier National Park. * WHEN...Through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Heavy rainfall is expected over the Northern Rockies, including the east side of Glacier Park from today into Monday. Rainfall amounts of 2 to 4 inches are possible by Monday. Additionally, high elevation snowpack could be washed out, adding to additional runoff. - http://www.weather.gov/safety/flood |
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-06-28 @ 1:48 pm -> 2026-06-29 @ 3:00 am |
| Onset: | 2026-06-28 @ 1:48 pm -> 2026-06-29 @ 3:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-28 @ 1:48 pm |
| Headline: | Lake Wind Advisory issued June 28 at 12:48PM MDT until June 29 at 2:00AM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Southwest winds 15 to 25 mph with gusts up to 35 mph. * WHERE...Fort Peck Lake. * WHEN...Until 2 AM MDT Monday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. |
| Alert: | Winter Weather Advisory |
| Area(s): | Elkhorn and Boulder Mountains; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-06-28 @ 1:44 pm -> 2026-06-29 @ 7:00 am |
| Onset: | 2026-06-28 @ 1:44 pm -> 2026-06-29 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-28 @ 1:44 pm |
| Headline: | Winter Weather Advisory issued June 28 at 12:44PM MDT until June 29 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Wet snow. Additional snow accumulations up to 2 inches near pass level, with amounts in excess of 6 inches above pass level. * WHERE...Elkhorn and Boulder Mountains, Gallatin and Madison County Mountains and Centennial Mountains, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...Until noon MDT Monday. * IMPACTS...Plan on cold and wet backcountry conditions with a heightened hypothermia risk for those not properly dressed. Wet snow may down trees and block access to forest roadways. * ADDITIONAL DETAILS...Campers should be aware that it only takes a few inches of snow to damage tents and other recreational items. |
| Alert: | Winter Storm Warning |
| Area(s): | Northwest Beaverhead County |
| Effective: | 2026-06-28 @ 1:44 pm -> 2026-06-29 @ 7:00 am |
| Onset: | 2026-06-28 @ 1:44 pm -> 2026-06-29 @ 1:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-28 @ 1:44 pm |
| Headline: | Winter Storm Warning issued June 28 at 12:44PM MDT until June 29 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy wet snow. Additional snow accumulations up to 3 inches near pass level, with additional amounts in excess of 6 inches above pass level. * WHERE...Northwest Beaverhead County. * WHEN...Until noon MDT Monday. * IMPACTS...Plan on cold and wet backcountry conditions with a heightened hypothermia risk for those not properly dressed. Wet snow may down trees and block access to forest roadways. * ADDITIONAL DETAILS...Campers should be aware that it only takes a few inches of snow to damage tents and other recreational items. |
| Alert: | Flood Advisory |
| Area(s): | Garfield, MT |
| Effective: | 2026-06-28 @ 12:42 pm -> 2026-06-28 @ 9:00 pm |
| Onset: | 2026-06-28 @ 12:42 pm -> 2026-06-28 @ 9:00 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-28 @ 12:42 pm |
| Headline: | Flood Advisory issued June 28 at 11:42AM MDT until June 28 at 8:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...South Central Garfield County in northeastern Montana... * WHEN...Until 800 PM MDT Sunday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1137 AM MDT, Emergency management reported heavy rain in Jordan due to thunderstorms last night. Minor flooding continues. - Jordan is the most likely place to experience minor flooding. Additional rainfall amounts of 0.1 to 0.2 inches are expected over the area through this afternoon. This additional rain may result in minor flooding. - Some locations that will experience flooding include... Jordan. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | West Glacier Region; Flathead/Mission Valleys; Potomac/Seeley Lake Region |
| Effective: | 2026-06-28 @ 12:14 pm -> 2026-06-29 @ 4:00 am |
| Onset: | 2026-06-28 @ 4:00 pm -> 2026-06-29 @ 4:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2026-06-28 @ 12:14 pm |
| Headline: | Flood Watch issued June 28 at 11:14AM MDT until June 29 at 3:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest and west central Montana, including the following areas, in northwest Montana, foothills and higher terrain from the West Glacier Region to Mission Mountains. * WHEN...From 3 PM MDT this afternoon through late tonight. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. High country mudslides are possible, especially near steep terrain which could endanger hikers. The upper portions of the Going-To-The-Sun Road is vulnerable to rockfall or debris flow. * ADDITIONAL DETAILS... - Anomalous subtropical moisture combined with a slow-moving weather front will trigger moderate to heavy rainfall rates over the region by late Sunday afternoon into the evening hours. High resolution weather models depict rain-rates exceeding 0.30 to 0.50 inches per hour in the mountains. With a lot of people recreating and camping in the region, this could become very dangerous very quickly. - Https://www.weather.gov/mso/hydrology |
| Alert: | High Wind Warning |
| Area(s): | Eastern Toole and Liberty |
| Effective: | 2026-06-28 @ 11:31 am -> 2026-06-29 @ 1:00 am |
| Onset: | 2026-06-28 @ 1:00 pm -> 2026-06-29 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-28 @ 11:31 am |
| Headline: | High Wind Warning issued June 28 at 10:31AM MDT until June 29 at 12:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Eastern Toole and Liberty. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Leafed out trees may see higher impacts compared to a similar event in the winter. |
| Alert: | High Wind Warning |
| Area(s): | Hill County; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine |
| Effective: | 2026-06-28 @ 11:31 am -> 2026-06-29 @ 4:00 am |
| Onset: | 2026-06-28 @ 4:00 pm -> 2026-06-29 @ 4:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-28 @ 11:31 am |
| Headline: | High Wind Warning issued June 28 at 10:31AM MDT until June 29 at 3:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...West to southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Bears Paw Mountains and Southern Blaine, Hill County, and Western and Central Chouteau County. * WHEN...From 3 PM this afternoon to 3 AM MDT Monday. * IMPACTS...Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Leafed out trees may see higher impacts compared to a similar event in the winter. |
| Alert: | Flood Advisory |
| Area(s): | Daniels, MT |
| Effective: | 2026-06-28 @ 8:46 am -> 2026-06-28 @ 7:00 pm |
| Onset: | 2026-06-28 @ 8:46 am -> 2026-06-28 @ 7:00 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-28 @ 8:46 am |
| Headline: | Flood Advisory issued June 28 at 7:46AM MDT until June 28 at 6:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Daniels County in northeastern Montana... * WHEN...Until 600 PM MDT Sunday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 746 AM MDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Additional rainfall amounts of 0.5 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Scobey, Flaxville, Peerless, Port Of Scobey, Madoc, Whitetail, Port Of Whitetail, Four Buttes and West Fork. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Phillips, MT; Valley, MT |
| Effective: | 2026-06-28 @ 8:33 am -> 2026-06-28 @ 3:00 pm |
| Onset: | 2026-06-28 @ 8:33 am -> 2026-06-28 @ 3:00 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-28 @ 8:33 am |
| Headline: | Flood Advisory issued June 28 at 7:33AM MDT until June 28 at 2:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Phillips County in northeastern Montana... Northwestern Valley County in northeastern Montana... * WHEN...Until 200 PM MDT Sunday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 733 AM MDT, Doppler radar indicated heavy rain due to showers and isolated thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Additional rainfall amounts of 0.5 to 1.5 inches are expected over the area today. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Malta, Whitewater, Zortman, Saco, Dodson, Loring, Port Of Morgan, Hinsdale, Phillips, Bowdoin, Sleeping Buffalo, Wagner, Frenchman Reservoir, Chapman, Thoeny and Landusky. - http://www.weather.gov/safety/flood |
| Alert: | Lake Wind Advisory |
| Area(s): | Flathead/Mission Valleys |
| Effective: | 2026-06-28 @ 8:29 am -> 2026-06-29 @ 4:00 am |
| Onset: | 2026-06-28 @ 1:00 pm -> 2026-06-29 @ 4:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-06-28 @ 8:29 am |
| Headline: | Lake Wind Advisory issued June 28 at 7:29AM MDT until June 29 at 3:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Sustained south winds 20 to 30 mph with gusts up to 35 mph expected. * WHERE...Flathead/Mission Valleys. * WHEN...From noon today to 3 AM MDT Monday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. |
| Alert: | Winter Weather Advisory |
| Area(s): | Absaroka/Beartooth Mountains |
| Effective: | 2026-06-28 @ 12:08 am -> 2026-06-29 @ 12:15 am |
| Onset: | 2026-06-28 @ 12:08 am -> 2026-06-29 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-06-28 @ 12:08 am |
| Headline: | Winter Weather Advisory issued June 27 at 11:08PM MDT until June 29 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Wet snow expected for the Beartooth Highway. Total snow accumulations of 1 to 3 inches. Winds gusting as high as 40 mph tonight into Sunday, then up to 55 mph on Monday. * WHERE...Absaroka/Beartooth Mountains. * WHEN...Until 6 PM MDT Monday. * IMPACTS...Travel on the Beartooth Highway will be impacted by wintry conditions. * ADDITIONAL DETAILS...The snow will lighten or even stop for a time Sunday afternoon into Sunday evening. Snow will redevelop Sunday night and continue into Monday. |
| Alert: | Winter Storm Warning |
| Area(s): | Butte/Blackfoot Region |
| Effective: | 2026-06-27 @ 7:16 pm -> 2026-06-28 @ 3:30 am |
| Onset: | 2026-06-27 @ 7:16 pm -> 2026-06-29 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-06-27 @ 7:16 pm |
| Headline: | Winter Storm Warning issued June 27 at 6:16PM MDT until June 29 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Heavy wet snow expected above 6500 feet. Total snow accumulations of 4 to 8 inches, with 8 to 16 inches across the Anaconda Pintler Mountains. Snow levels may briefly lower and could produce minor slushy accumulation at Homestake and Macdonald Pass. * WHERE...Georgetown Lake, backcountry and higher elevation areas. * WHEN...Until 9 AM MDT Monday. * IMPACTS...Plan for winter-like conditions in the backcountry and higher elevations. Cold temperatures, wind, and wet snow will elevate the risk of hypothermia. Heavy wet snow may down trees, blocking access to backcountry roadways. * ADDITIONAL DETAILS...West winds 10 to 20 mph with gusts up to 30 mph. |
| Alert: | Winter Storm Warning |
| Area(s): | Bitterroot/Sapphire Mountains |
| Effective: | 2026-06-27 @ 7:16 pm -> 2026-06-28 @ 3:30 am |
| Onset: | 2026-06-27 @ 7:16 pm -> 2026-06-29 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-06-27 @ 7:16 pm |
| Headline: | Winter Storm Warning issued June 27 at 6:16PM MDT until June 29 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Heavy wet snow expected above 6500 feet. Total snow accumulations of 4 to 8 inches, with up to 12 inches across the highest peaks. * WHERE...Skalkaho Pass, Nez Perce Pass, backcountry and higher elevation areas. * WHEN...Until 9 AM MDT Monday. * IMPACTS...Plan for winter-like conditions in the backcountry and higher elevations. Cold temperatures, wind, and wet snow will elevate the risk of hypothermia. Heavy wet snow may down trees, blocking access to backcountry roadways. * ADDITIONAL DETAILS...West winds 10 to 20 mph with gusts up to 30 mph. |
| Alert: | Hydrologic Outlook |
| Area(s): | Flathead, MT; Lake, MT |
| Effective: | 2026-06-27 @ 1:25 pm -> 2026-06-30 @ 7:00 am |
| Onset: | 2026-06-27 @ 1:25 pm |
| Severity: | Unknown |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2026-06-27 @ 1:25 pm |
| Headline: | Hydrologic Outlook issued June 27 at 12:25PM MDT by NWS Missoula MT |
| Description: |
ESFMSO What: Widespread moderate rainfall over a prolonged period of time. Storm total amounts between 1 to 3 inches for valleys and 2 to 4 inches for the mountains. Where: Flathead and Lake Counties in northwest Montana, including Glacier National Park. Timing: Beginning Sunday afternoon, continuing through Monday night. Significant rainfall totals will bring potential for rapid rises on streams and creeks, rock and debris slides and runoff issues in poor drainage areas. Those recreating in the backcountry should take caution on backcountry roadways for falling debris. If camping, be mindful of where you park your RV or pitch your tent. Avoid setting up near water's edge, as streams and reservoirs could rise rapidly and flood your site. |