May 20, 2020
On May 20th, a cool and showery pattern began in the northern Idaho Panhandle. Two upper low pressure systems dropped down into the region out of the northwest. These brought rain, with some brief heavy rain, from May 20th through May 22nd. Many creeks in northern Idaho, such as Bonner County, were at dangerous levels this May due to heavy rain and significant spring snow melt. On May 20th, numerous rain gauges measured 24 hour total rainfall of 1 to 1.5. There was measurable rain the following
Source: NOAA National Weather Service Storm Events Database (event 897676). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Bonner County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.