Flood Potential Outlook
Issued by NWS Billings, MT

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FGUS75 KBYZ 091858

1258 PM MDT Thu May 9 2019

...River Runoff Season Begins Sunday...

Much warmer temperatures are forecast for this weekend into next
week. Highs near 80 degrees are expected in the lower elevations
Sunday and Monday, with 50s and 60s in the mountain foothills.
These warmer temperatures will increase snow melt in the 6000 to
9000 foot elevations where a significant snowpack currently
exists. By Monday and Tuesday, river forecasts show stream flows 2
to 3 times higher than today. Higher flows will eventually move
into larger rivers across eastern Montana later in the week.

Larger streams and rivers will stay well below flood stage next
week, but small streams and creeks may run near bankfull at times.

Now is the time to move livestock and equipment out of low lying
areas and away from waterways. Pay close attention to the forecast
for any precipitation events that could cause additional river
rises in your area. Recreationists should increase safety
awareness, and anticipate changing conditions with higher flows
over the next week.


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