Flood — Treasure, Montana

2019-03-21 to 2019-03-22 · near Hysham, Treasure, Montana

Event narrative

Flooding due to an ice jam was reported on the Yellowstone River east of Amelia Island just north of Hysham. Low-land flooding along the river and adjacent farm fields was reported. One home experience some flooding. Otherwise, no major impacts were reported with this ice jam.

Wider weather episode

Flooding occurred across many areas of south central and southeast Montana during the latter portions of the month. A considerable snow cover existed through the month. Surface and sub-surface ground temperatures remained frozen through the last week of March. Warming temperatures resulted in this snow to quickly melt. Widespread flooding occurred due to the snow melt not being able to soak into the ground. In addition, the warm temperatures allowed river ice to break loose resulting in ice jams along a few rivers. Many creeks and ditches filled with water with some roads being washed out. Although some outbuildings and a house were flooded, most of the flooding occurred over open ranch land.

View location on OpenStreetMap → (46.3185, -107.2369)

Source: NOAA Storm Events Database, event_id 813273. Narrative written by the NWS forecast office that issued the report.