* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...A portion of northeast Montana, including the following areas, Central and Southeast Phillips, Petroleum and Southwest Phillips.
* WHEN...From Tuesday evening through late Tuesday night.
* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS... - Thunderstorms will be moving east into the Watch area, with the potential of heavy downpours that would bring flooding. - http://www.weather.gov/safety/flood