248 
WGUS85 KBYZ 220921
FLSBYZ

Flood Advisory
National Weather Service Billings MT
321 AM MDT Mon Jun 22 2026

MTC065-111-221215-
/O.NEW.KBYZ.FA.Y.0004.260622T0921Z-260622T1215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Musselshell MT-Yellowstone MT-
321 AM MDT Mon Jun 22 2026

...FLOOD ADVISORY IN EFFECT UNTIL 615 AM MDT THIS MORNING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Southeastern Musselshell County in central Montana...
  North Central Yellowstone County in south central Montana...

* WHEN...Until 615 AM MDT.

* IMPACTS...Rises in small streams and minor flooding of low-lying
  and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 319 AM MDT, Doppler radar and automated rain gauges indicated
    heavy rain due to thunderstorms. Minor flooding is ongoing or
    expected to begin shortly in the advisory area. Between 1 and 2.5
    inches of rain have fallen.
  - Additional rainfall amounts up to 0.5 inches are expected over
    the area.
  - Some locations that will experience flooding include...
    Mainly rural areas of Southeastern Musselshell and North Central
    Yellowstone Counties.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles. Do not drive on or attempt to cross flooded
roads, find an alternate route. Roads and driveways may be damaged or
washed out in places.

&&

LAT...LON 4633 10857 4633 10818 4634 10798 4625 10794
      4617 10813 4613 10836 4613 10849 4622 10859


$$

Palmquist

272 
WGUS85 KBYZ 221038
FLSBYZ

Flood Advisory
National Weather Service Billings MT
438 AM MDT Mon Jun 22 2026

MTC065-111-221215-
/O.CON.KBYZ.FA.Y.0004.000000T0000Z-260622T1215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Musselshell MT-Yellowstone MT-
438 AM MDT Mon Jun 22 2026

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 615 AM MDT THIS MORNING...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...Southeastern Musselshell County in central Montana...
  North Central Yellowstone County in south central Montana...

* WHEN...Until 615 AM MDT.

* IMPACTS...Rises in small streams and minor flooding of low-lying
  and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 436 AM MDT, Doppler radar and automated rain gauges indicated
    heavy rain due to thunderstorms. Minor flooding is ongoing or
    expected to begin shortly in the advisory area. Between 1 and 2.5
    inches of rain have fallen.
  - Thunderstorms are moving east of the Advisory area. Only light
    additional accumulations are expected.
  - Some locations that will experience flooding include...
    Mainly rural areas of Southeastern Musselshell and North Central
    Yellowstone Counties.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles. Do not drive on or attempt to cross flooded
roads, find an alternate route. Roads and driveways may be damaged or
washed out in places.

&&

LAT...LON 4633 10857 4633 10818 4634 10798 4625 10794
      4617 10813 4613 10836 4613 10849 4622 10859


$$

Palmquist

610 
WGUS85 KBYZ 221208
FLSBYZ

Flood Advisory
National Weather Service Billings MT
608 AM MDT Mon Jun 22 2026

MTC065-111-221218-
/O.EXP.KBYZ.FA.Y.0004.000000T0000Z-260622T1215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Musselshell MT-Yellowstone MT-
608 AM MDT Mon Jun 22 2026

...FLOOD ADVISORY WILL EXPIRE AT 615 AM MDT THIS MORNING...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.

&&

LAT...LON 4633 10857 4633 10818 4634 10798 4625 10794
      4617 10813 4613 10836 4613 10849 4622 10859


$$

Palmquist