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Home Return to list Areal Flood Advisory 0030 Issued by the Billings Forecast Office
Action: New Issued At: 2026-09-18 20:09:03
417
WGUS85 KBYZ 190108
FLSBYZ
Flood Advisory
National Weather Service Billings MT
708 PM MDT Fri Sep 18 2026
MTC037-097-190415-
/O.NEW.KBYZ.FA.Y.0030.260919T0108Z-260919T0415Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Golden Valley MT-Sweet Grass MT-
708 PM MDT Fri Sep 18 2026
...FLOOD ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...Southwestern Golden Valley County in central Montana...
Northeastern Sweet Grass County in south central Montana...
* WHEN...Until 1015 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Rises in small streams and normally dry arroyos.
* ADDITIONAL DETAILS...
- At 708 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1.5 inches of rain
have fallen.
- Some locations that will experience flooding include...
Mainly rural areas of Southwestern Golden Valley and Northeastern
Sweet Grass 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.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4622 10965 4614 10965 4613 10952 4616 10940
4613 10942 4601 10942 4596 10943 4596 10951
4587 10951 4587 10955 4598 10974 4622 10968
$$
Action: Cancelled Issued At: 2026-09-18 20:41:04
135
WGUS85 KBYZ 190140
FLSBYZ
Flood Advisory
National Weather Service Billings MT
740 PM MDT Fri Sep 18 2026
MTC037-097-190150-
/O.CAN.KBYZ.FA.Y.0030.000000T0000Z-260919T0415Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Golden Valley MT-Sweet Grass MT-
740 PM MDT Fri Sep 18 2026
...FLOOD ADVISORY HAS BEEN REPLACED WITH A FLASH FLOOD WARNING...
The Flood Advisory is replaced by a Flash Flood Warning for portions
of central and south central Montana, including the following areas,
in central Montana, Golden Valley. In south central Montana, Sweet
Grass.
The threat of flooding continues and a Flash Flood Warning is now in
effect. Please refer to that bulletin for more information.
&&
LAT...LON 4622 10965 4614 10965 4613 10952 4616 10940
4613 10942 4601 10942 4596 10943 4596 10951
4587 10951 4587 10955 4598 10974 4622 10968
$$
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