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Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Missoula MT
240 PM MDT Sat Sep 5 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT SUNDAY
DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST BEAVERHEAD...

MTZ111-070300-
/O.CON.KMSO.FW.W.0013.260906T1800Z-260907T0300Z/
East Beaverhead-
240 PM MDT Sat Sep 5 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT SUNDAY...

* AFFECTED AREA...Fire Weather Zone 111.

* TIMING...From noon to 9 PM MDT Sunday.

* WINDS...South winds 15 to 25 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...Relative Humidity between 15 to 25 percent.

* IMPACTS...Any fires that develop will spread rapidly. Outdoor
  burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please advise the appropriate officials or fire crews in the field of
this Red Flag Warning.

&&

$$

Flood Watch

Flood Watch
National Weather Service Great Falls MT
1132 AM MDT Sun Sep 6 2026

MTZ301>304-307>309-071215-
/O.NEW.KTFX.FA.A.0007.260906T2100Z-260908T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Eastern Toole and Liberty-
Southern Rocky Mountain Front-Southern High Plains-Eastern
Pondera and Eastern Teton-
Including the cities of Kiowa, Cut Bank, Galata, Conrad, Ethridge,
Shelby, Bynum, Pendroy, Browning, Joplin, Brady, Logan Pass, Saint
Mary, Ledger, Dupuyer, Marias Pass, Devon, Babb, Chester, Lothair,
Heart Butte, Rogers Pass, Santa Rita, Choteau, East Glacier Park, and
Whitlash
1132 AM MDT Sun Sep 6 2026

...FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH TUESDAY
MORNING...

* WHAT...Flooding caused by excessive rainfall is 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...From 3 PM MDT this afternoon through Tuesday morning.

* IMPACTS...Excessive runoff may result in minor 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 areas. Rural gravel and dirt roads can become muddy and
  may become difficult to travel. Rock/debris slides are possible in
  the mountains.

* ADDITIONAL DETAILS...
  - Thunderstorms today will be capable of producing 0.50 to 1 inch
    per hour rain rates. Periods of moderate to heavy rainfall will
    be possible Monday through Tuesday morning. Widespread 0.75 to
    1.5 inches of rain have already fallen along the Rocky Mountain
    Front over the past 24 hours. Additional widespread rain
    accumulations of 1 to 3 inches are possible along the Rocky
    Mountain Front and Sweet Grass Hills with isolated 4 inches
    possible along and north of US Highway 2 this afternoon through
    Tuesday morning.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$
Flood Watch
National Weather Service Missoula MT
951 AM MDT Sun Sep 6 2026

MTZ002-003-043-081800-
/O.NEW.KMSO.FA.A.0011.260906T2100Z-260908T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
West Glacier Region-Flathead/Mission Valleys-Potomac/Seeley Lake
Region-
951 AM MDT Sun Sep 6 2026

...FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH TUESDAY
MORNING...

* WHAT...Flooding caused by excessive rainfall is 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...From 3 PM MDT this afternoon 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
  drainage and urban areas.

* ADDITIONAL DETAILS...
  - Thunderstorms capable of rainfall rates of 0.75" to 1.00" per
    hour are possible this afternoon and evening (Sept 6), which
    could lead to localized debris flows.

    This period will then be followed by prolonged moderate to heavy
    rainfall Monday into Tuesday morning of an additional 1 to 3
    inches in the valleys, with 2 to 4 inches in the higher terrain,
    especially along the Continental Divide and in Glacier National
    Park.
  - https://www.weather.gov/mso/hydrology

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

Special Weather Statement

Special Weather Statement
National Weather Service Great Falls MT
245 PM MDT Sun Sep 6 2026

MTZ327-062130-
Northwest Beaverhead County MT-
245 PM MDT Sun Sep 6 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN BEAVERHEAD COUNTY
THROUGH 330 PM MDT...

At 244 PM MDT, Doppler radar was tracking a strong thunderstorms
over the northwestern portions of Beaverhead County, moving northeast
at 25 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Wisdom, Jackson, Wise River, and Dewey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4575 11392 4578 11387 4575 11382 4584 11370
      4588 11354 4594 11351 4575 11336 4587 11322
      4588 11310 4581 11300 4578 11285 4511 11353
      4511 11355 4533 11374 4550 11376 4552 11383
      4559 11380 4562 11390
TIME...MOT...LOC 2044Z 207DEG 20KT 4545 11368

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

Brusda

Hydrologic Outlook

Hydrologic Outlook
MTC029-047-063-081100-

Hydrologic Outlook
National Weather Service Missoula MT
1043 AM MDT Sat Sep 5 2026

What: Widespread moderate rainfall over a prolonged period of time.
Storm total amounts between 1 to 3 inches for valleys and 2 to 3
inches for the mountains.  There is a 10 percent chance of isolated
rainfall amounts up to 4 inches along the Continental Divide.

Where: Flathead and Lake Counties in northwest Montana, including
Glacier National Park. Missoula county in west-central Montana.

Timing: Beginning Sunday morning, continuing through Monday night.
Heaviest rainfall rates anticipated Monday into 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.

$$
U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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