Storm Center: Weather Alerts: Warnings
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Other Weather Alerts
Type
Hydrologic Outlook
Issued By
NWS Great Falls MT
Issuing Time
Mon, 25 Aug 2025 15:54:00 PDT
Broadcast Time
Mon, 25 Aug 2025 15:54:00 PDT
Valid Until
Tue, 26 Aug 2025 15:00:00 PDT
Brief Description
Hydrologic Outlook
Detailed Description
ESFTFX Monsoon moisture will slowly move northward and bring periods of widespread rain and embedded thunderstorms to Southwest and portions of Central Montana Tuesday night through Friday. Localized heavier downpours in excess of a half inch per hour can be expected with the heavier cells in addition to the general four day storm totals between a quarter to an inch and a half. The most persistent and heaviest rainfall is expected along and south of I90 on Wednesday and Thursday. Impacts will mostly be limited to sensitive burn scars or other normally flood prone locations or areas of steep terrain and may include instances of localized flooding, debris flows, and rock slides. Those considering any backcountry travel for Wednesday and Thursday of this week should be prepared for periods of excessive rainfall, muddy roads, and potential localized flooding.
Region
Alert
Arizona
Flash Flood Warning (7)
California
Flash Flood Warning (6)
Florida
Flash Flood Warning
South Dakota
Flood Warning (12)
Iowa
Flood Warning (4)
South Carolina
Flood Warning (5)
Oklahoma
Flood Warning
Georgia,South Carolina
Flood Warning (2)
Florida
Flood Warning (4)
Minnesota
Flood Warning (26)
California
Flood Warning (4)
Illinois,Wisconsin
Flood Warning (4)
Minnesota
Winter Weather Warning, Watch, or Advisory (2)
Idaho,Oregon
Flash Flood Watch (2)
Idaho
Public Severe Weather Alert (5)
Washington
Public Severe Weather Alert (28)
Oregon,Washington
Public Severe Weather Alert (16)
North Carolina
Coastal Flood Warning, Watch, or Statement (3)
New Mexico
Coastal Flood Warning, Watch, or Statement (5)
Oklahoma
Coastal Flood Warning, Watch, or Statement (2)
Utah
Coastal Flood Warning, Watch, or Statement
Florida
Coastal Flood Warning, Watch, or Statement (3)
California
Coastal Flood Warning, Watch, or Statement (2)
Arizona
Coastal Flood Warning, Watch, or Statement
Nevada
Coastal Flood Warning, Watch, or Statement (2)
Colorado
Coastal Flood Warning, Watch, or Statement
Arizona
Flood Statement (3)
California,Nevada
Flood Statement (4)
Alaska
Flood Statement (7)
New Mexico
Flood Statement (5)
Colorado
Flood Statement (6)
Oklahoma
Flood Statement (3)
Iowa
Flood Statement (7)
Alaska
Special Weather Statement (2)
Arizona
Air Stagnation Advisory (2)
Idaho
Air Stagnation Advisory (4)
Oregon
Air Stagnation Advisory (2)
Wyoming
Air Stagnation Advisory
Texas
Air Stagnation Advisory
Alaska
Non Precipitation Warning, Watch, or Statement (15)
Idaho,Washington
Non Precipitation Warning, Watch, or Statement (36)
Oregon,Washington
Non Precipitation Warning, Watch, or Statement (16)
California
Non Precipitation Warning, Watch, or Statement (2)
California
Red Flag Warning (8)
Washington
Red Flag Warning (6)
Oregon
Red Flag Warning (3)
Florida
Marine Weather Statement (7)
New York
Marine Weather Statement (6)
Lake Erie
Marine Weather Statement
Lake Ontario
Marine Weather Statement (2)
Lake Ontario
Marine Weather Statement
Coastal Maine,Coastal Atlantic (south to NC)
Marine Weather Statement (18)
Lake Huron
Marine Weather Statement (4)
Coastal California
Marine Weather Statement (26)
Coastal Oregon,Coastal Oregon-California,Coastal California-Oregon
Marine Weather Statement
North Carolina
Marine Weather Statement (2)
Ohio,Pennsylvania
Marine Weather Statement (2)
Lake Erie
Marine Weather Statement
Indiana
Marine Weather Statement (19)
Lake Huron
Marine Weather Statement
Michigan
Marine Weather Statement (7)
Lake Huron
Marine Weather Statement
Lake Erie
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Ontario
Marine Weather Statement
Lake Erie
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Erie
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Huron
Marine Weather Statement
Lake Huron
Marine Weather Statement
Alaska
River Statement (5)
Nevada
River Statement
Idaho,Montana
River Statement (3)
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