Hazard Report Provided By forecast.weather.gov

Hydrologic Outlook
MTC029-047-301200-

Hydrologic Outlook
National Weather Service Missoula MT
1225 PM MDT Sat Jun 27 2026

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.

$$

Flood Warning
National Weather Service Missoula MT
145 PM MDT Mon Jun 29 2026

MTC029-301645-
/O.NEW.KMSO.FA.W.0003.260629T1945Z-260630T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Flathead MT-
145 PM MDT Mon Jun 29 2026

...FLOOD WARNING IN EFFECT UNTIL 1045 AM MDT TUESDAY...

* 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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4899 11441 4899 11406 4896 11402 4894 11405
      4891 11401 4889 11406 4884 11399 4883 11400
      4885 11379 4872 11370 4869 11374 4861 11375
      4859 11354 4855 11347 4845 11348 4842 11336
      4837 11334 4834 11339 4834 11338 4825 11375


$$

Flood Watch
National Weather Service Missoula MT
755 AM MDT Mon Jun 29 2026

MTZ002-003-301200-
/O.EXT.KMSO.FA.A.0007.260629T1400Z-260630T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
West Glacier Region-Flathead/Mission Valleys-
755 AM MDT Mon Jun 29 2026

...FLOOD WATCH NOW IN EFFECT THROUGH LATE TONIGHT...

* 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

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.

&&

$$

Hazard Report Provided By forecast.weather.gov