Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-06-29 @ 6:52 pm -> 2026-06-30 @ 6:00 am |
| Onset: | 2026-06-30 @ 7:00 am -> 2026-06-30 @ 9:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-29 @ 6:52 pm |
| Headline: | Lake Wind Advisory issued June 29 at 5:52PM MDT until June 30 at 8:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...West winds 15 to 25 mph with gusts up to 35 mph expected. * WHERE...Fort Peck Lake * WHEN...From 6 AM to 8 PM MDT Tuesday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Look for waves up to 4 feet on Tuesday. |
| Alert: | Flood Advisory |
| Area(s): | Glacier, MT; Pondera, MT |
| Effective: | 2026-06-29 @ 4:50 pm -> 2026-06-30 @ 4:45 pm |
| Onset: | 2026-06-29 @ 4:50 pm -> 2026-06-30 @ 4:45 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-29 @ 4:50 pm |
| Headline: | Flood Advisory issued June 29 at 3:50PM MDT until June 30 at 3:45PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...Southern Glacier County in north central Montana... Northwestern Pondera County in north central Montana... * WHEN...Until 345 PM MDT Tuesday. * IMPACTS...River or stream flows are elevated. * ADDITIONAL DETAILS... - At 348 PM MDT, gauge reports indicated heavy rain was causing Badger Creek to rise rapidly. Minor flooding along Badger Creek is likely to begin shortly. - This includes the following streams and drainages... Whitetail Creek, North Fork Whitetail Creek and Badger Creek. Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mainly rural areas of Southern Glacier and Northwestern Pondera Counties. - http://www.weather.gov/safety/flood |
| Alert: | Flood Warning |
| Area(s): | Flathead, MT |
| Effective: | 2026-06-29 @ 2:45 pm -> 2026-06-30 @ 11:45 am |
| Onset: | 2026-06-29 @ 2:45 pm -> 2026-06-30 @ 11:45 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-06-29 @ 2:45 pm |
| Headline: | Flood Warning issued June 29 at 1:45PM MDT until June 30 at 10:45AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...Northeastern Flathead County in northwestern Montana... * WHEN...Until 1045 AM MDT Tuesday. * IMPACTS...Flooding of creeks and small streams in Glacier National Park is imminent or occurring. Streams continue to rise due to excess runoff from ongoing rainfall. Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS... - At 143 PM MDT, Doppler radar indicated heavy rain. Flooding is already occurring in the warned area. - Some locations that will experience flooding include... Lake McDonald, Apgar, Nyack and Pinnacle. - https://www.weather.gov/mso/hydrology |
| Alert: | Flood Warning |
| Area(s): | Glacier, MT |
| Effective: | 2026-06-29 @ 2:05 pm -> 2026-06-30 @ 1:45 pm |
| Onset: | 2026-06-29 @ 2:05 pm -> 2026-06-30 @ 1:45 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-29 @ 2:05 pm |
| Headline: | Flood Warning issued June 29 at 1:05PM MDT until June 30 at 12:45PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Areas along Swiftcurrent Creek near Many Glacier in Glacier National Park. * WHEN...Until 1245 PM MDT Tuesday. * IMPACTS...Flooding and elevated flow of creeks and streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1248 PM MDT, Recent heavy rainfall has resulted in elevated flows on creeks and streams including Swiftcurrent Creek near Many Glacier. Flooding is expected as water levels continue to rise through this evening from runoff and some additional precipitation. - At 1230 PM MDT, Swiftcurrent Creek at Many Glacier was at a stage of 4.5 ft. A rise to 6.2 ft is forecast to occur by 6 PM MDT early this evening. Creek rises at this location will impact access to the Many Glacier area. - Some locations that will experience flooding include... Many Glacier. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | East Glacier Park Region |
| Effective: | 2026-06-29 @ 1:19 pm -> 2026-06-30 @ 1:00 am |
| Onset: | 2026-06-29 @ 1:19 pm -> 2026-06-30 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2026-06-29 @ 1:19 pm |
| Headline: | Flood Watch issued June 29 at 12:19PM MDT until June 30 at 12:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall 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 this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Recent rainfall amounts from 2 to as much as 5 inches has fallen in the Glacier National Park region. Periods of rain through this this evening may bring another 0.50" to some locations. Creeks are rising and will continue to see additional rises through this afternoon. - http://www.weather.gov/safety/flood |
| Alert: | Flood Warning |
| Area(s): | Lake, MT |
| Effective: | 2026-06-29 @ 11:50 am -> 2026-06-30 @ 11:45 am |
| Onset: | 2026-06-29 @ 11:50 am -> 2026-06-30 @ 11:45 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-06-29 @ 11:50 am |
| Headline: | Flood Warning issued June 29 at 10:50AM MDT until June 30 at 10:45AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. An additional 1 to 3 inches of rain is possible in the warned area through 6am Tuesday. * WHERE...South Central Lake County in northwestern Montana... * WHEN...Until 1045 AM MDT Tuesday. * IMPACTS...Flooding of creeks and streams draining out of the Mission Mountains, included but not limited to Crow Creek, Post Creek and Mission Creek, is imminent or occurring. Streams continue to rise due to excess runoff from ongoing rainfall. Ponding of water and minor flooding is anticipated in poor drainage areas. * ADDITIONAL DETAILS... - At 1039 AM MDT, Doppler radar and automated rain gauges indicated heavy rain. Flooding is ongoing or expected to begin shortly in the warned area. - Some locations that will experience flooding include... Ronan, St. Ignatius, Pablo, Kicking Horse, Allentown, Fort Connah and Charlo. - https://www.weather.gov/mso/hydrology |
| Alert: | Flood Watch |
| Area(s): | West Glacier Region; Flathead/Mission Valleys |
| Effective: | 2026-06-29 @ 8:55 am -> 2026-06-30 @ 7:00 am |
| Onset: | 2026-06-29 @ 9:00 am -> 2026-06-30 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2026-06-29 @ 8:55 am |
| Headline: | Flood Watch issued June 29 at 7:55AM MDT until June 30 at 6:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest Montana, including the following areas, the Flathead/Mission Valleys and West Glacier Region. * WHEN...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. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Anywhere from 2 to 5 inches of rain has already fallen through the higher terrain, particularly the Mission and Swan Ranges. Prolonged moderate to heavy rain through tonight may bring an additional 2 to 4 inches in already saturated area. - https://www.weather.gov/mso/hydrology |
| 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. |