Future

Responsive action SHOULD be taken in the near future

Hawaii Severe Flood Watch | Effective 09/07/2026 06:12

Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Oahu, Maui County, Big Island * WHEN...Through Tuesday afternoon. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff. * ADDITIONAL DETAILS...

Hawaii Severe Flood Watch | Effective 09/07/2026 06:12

Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Kauai and Niihau. * WHEN...Through Tuesday afternoon. * IMPACTS...Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain.

Montana Severe Flood Watch | Effective 09/07/2026 05:01

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of north central Montana, including the following areas, East Glacier Park Region, Eastern Glacier, Western Toole, and Central Pondera, Eastern Pondera and Eastern Teton, Eastern Toole and Liberty, Northern High Plains, Southern High Plains and Southern Rocky Mountain Front. * WHEN...Through Tuesday morning. * IMPACTS...Excessive runoff may result in minor flooding of creeks,

Montana Unknown Hydrologic Outlook | Effective 09/07/2026 03:02

ESFMSO What: Widespread moderate rainfall over a prolonged period of time. Storm total amounts between 1 to 2 inches for valleys and 2 to 3 inches for the mountains. Where: Flathead and Lake Counties in northwest Montana, including Glacier National Park. Missoula county in west-central Montana. Timing: Continuing through Tuesday morning. The heaviest rainfall rates are anticipated today and tonight. Significant rainfall totals will bring potential for rapid rises on

Montana Severe Flood Watch | Effective 09/07/2026 02:59

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Montana, including the following areas, in northwest Montana, Flathead/Mission Valleys and West Glacier Region. In west central Montana, Potomac/Seeley Lake Region. * WHEN...Through Tuesday morning. * 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

Alaska Moderate Coastal Flood Watch | Effective 09/07/2026 00:19

* WHAT...Minor Coastal Flooding Possible. Water levels 4 to 6 feet above the normal high tide line possible with the Wednesday and Thursday high tides. * WHERE...Golovin. * WHEN...From late Tuesday night through Friday afternoon. * IMPACTS...Some beach erosion may occur. Water may reach up to the lowest lying buildings. * ADDITIONAL DETAILS...Several days of gusty southwesterly winds are expected late Wednesday through Friday. Rain totals between 1 to 2 inches are possible. Precautions should be taken to protect property.

Montana Severe Severe Thunderstorm Watch | Effective 09/06/2026 21:08

SEVERE THUNDERSTORM WATCH 662 REMAINS VALID UNTIL 1 AM MDT MONDAY FOR THE FOLLOWING AREAS IN MONTANA THIS WATCH INCLUDES 5 COUNTIES IN CENTRAL MONTANA FERGUS IN NORTH CENTRAL MONTANA BLAINE CHOUTEAU HILL LIBERTY THIS INCLUDES THE CITIES OF BIG SANDY, CARTER, CHESTER, CHINOOK, FORT BENTON, GRASS RANGE, HARLEM, HAVRE, HAYS, LEWISTOWN, LEWISTOWN DIVIDE, ROCKY BOY, RUDYARD, WHITLASH, AND WINIFRED.

Hawaii Severe Flood Watch | Effective 09/06/2026 20:00

Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Maui, Lanai, Molokai, Oahu, The Big Island and Kahoolawe. * WHEN...Through Tuesday afternoon. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff.

Hawaii Severe Flood Watch | Effective 09/06/2026 20:00

Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Kauai and Niihau. * WHEN...Through Tuesday afternoon. * IMPACTS...Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain.
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