...Ice Action Risk High This Year...
Thicker than average river ice has developed along the main stem Red River this winter season. This means that there is a greater than normal risk for ice jams. These ice jams can and have caused localized rapid fluctuations of 2 to 4 feet in the Fargo and Halstad areas.
The threat for river rises due to ice action will remain from now into early next week along the red river north of Fargo. River rises of 2 to 3 feet are possible while the crest works through the river system.
The threat for rain increases late in the week and into the weekend. Should significant rains occur this may extend crests or delay them where they have not yet occurred. Significant rains could also slow the rate of fall or cause additional short term rises where the crest has already occurred.
NOAA/NWS will continue to closely monitor the situation...issuing updated statements or warnings as needed.
Example of how ice may cause fluctuations to the river crest. Downstream ice jams would cause the river to rise higher than expected while upstream ice jams would cause a lower crest.