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Idaho Flood Stories

189 first-hand accounts of flood events in Idaho, ranked by impact. Each is a NOAA-written narrative of the moment.

Flood$1.8M damage

Bonner, ID · Mar 31, 2011

A stationary trough of low pressure off the Pacific Northwest Coast steered a deep fetch of subtropical moisture into the Idaho Panhandle which persisted from March 29th through early April.

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Flood$160K damage

Kootenai, ID · Feb 12, 2014

Numerous areas across the Idaho Panhandle dealt with flooding during the second week of February. While minor flooding is a common occurrence during the late winter months when warmer temperatures, wind, and rain fall on valley snowpack, there was one ingredient of this event…

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Flood$550K damage

Bonner, ID · Mar 30, 2012

A stagnant longwave pattern featuring a broad trough off the Pacific Northwest Coast and upper-level ridge over the Central US resulted in a parade of moist storm systems tracking through the Inland Northwest from March 28th through the 31st.

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Flood

Bonner, ID · May 11, 2018

An above average snow pack in the mountains drained by the Pend Oreille and Clark Fork River basins melted at an accelerated rate during the month of May.

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Flood$80K damage

Shoshone, ID · Mar 16, 2017

Periodic heavy rain and mountain snow melt caused the St. Joe River the flood. Extensive flooding of fields, roads, outbuildings and yards of residences and businesses in the river bottom lands occurred. A few residences and businesses experienced first floor flooding as well.

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Flood$1.0M damage

Shoshone, ID · Jan 16, 2011

An unseasonably warm and wet period resulted in small stream and main stem river flooding. The Inland Northwest remained in the warm sector of a flat ridge with warm air advection into the region.

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Flood$4.0M damage

Northern Panhandle, ID · Jun 1, 1997

Rivers and streams in Idaho's panhandle region began flooding in May from heavy spring snow melt. Flooding along several of these rivers continued well into the month of June, with the Pend Oreille, St. Joe and Kootenai Rivers flooding roads and a few homes.

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Flood

Nez Perce, ID · Apr 9, 2019

Beginning on April 6th and continuing through April 10th a series of Pacific atmospheric rivers were directed into Oregon, southeast Washington and central Idaho saturating the ground with heavy rainfall.

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Flood

Lewis, ID · Jun 12, 2022

Another trough system brought a round of slow moving stratiform slow moving showers. With the abundant amount of precipitation from earlier in the month, the streams and creeks were already near bank full.

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Flood$340K damage

Shoshone, ID · Mar 28, 2012

A stagnant longwave pattern featuring a broad trough off the Pacific Northwest Coast and upper-level ridge over the Central US resulted in a parade of moist storm systems tracking through the Inland Northwest from March 28th through the 31st.

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Flood$200K damage

Kootenai, ID · Mar 15, 2017

Periodic heavy rain and mountain snow melt caused the Coeur D'Alene River to flood. The town of Cataldo experienced extensive flooding of roads, fields, yards and outbuildings in the river bottom lands.

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Flood$200K damage

Shoshone, ID · Mar 15, 2017

Periodic heavy rain and mountain snow melt caused the Coeur D'Alene River to flood. The town of Cataldo experienced extensive flooding of roads, fields, yards and outbuildings in the river bottom lands.

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Flood$55K damage

Shoshone, ID · Mar 16, 2017

Periodic heavy rain and mountain snow melt caused the St. Joe River the flood. Extensive flooding of fields, roads, outbuildings and yards of residences and businesses in the river bottom lands occurred. A few residences and businesses experienced first floor flooding as well.

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Flood$600K damage

Nez Perce, ID · Apr 2, 2011

A stationary trough of low pressure off the Pacific Northwest Coast steered a deep fetch of subtropical moisture into the Idaho Panhandle which persisted from the end of March through April 7th bringing several rounds of heavy rain.

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Flood$500K damage

Boundary, ID · Apr 6, 2011

A stationary trough of low pressure off the Pacific Northwest Coast steered a deep fetch of subtropical moisture into the Idaho Panhandle which persisted from the end of March through April 7th bringing several rounds of heavy rain.

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Flash Flood$1.0M damage

Latah, ID · May 6, 2005

On the evening of the 6th of May, a slow moving line of thunderstorms moved across central Idaho. These thunderstorms dumped one to three inches of rain in an hour across portions of the Idaho Palouse.

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Flash Flood$1.0M damage

Nez Perce, ID · May 6, 2005

On the evening of the 6th of May, a slow moving line of thunderstorms moved across central Idaho. These thunderstorms dumped one to three inches of rain in an hour across portions of the Idaho Palouse.

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Flood$30K damage

Kootenai, ID · Mar 9, 2014

An upper level low pressure system in the Gulf of Alaska late on March 8th through the evening of March 9th directed a slow north to south sagging atmospheric river across the area. The origins of this atmospheric river were from off of the Islands of Hawaii.

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Flood

Bonner, ID · May 18, 2018

Spring time mountain snow melt caused the lake level of Lake Pend Oreille to achieve and sustain a minor flood level from the third week of May through the end of the month.

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Flood$25K damage

Bonner, ID · Mar 9, 2014

An upper level low pressure system in the Gulf of Alaska late on March 8th through the evening of March 9th directed a slow north to south sagging atmospheric river across the area. The origins of this atmospheric river were from off of the Islands of Hawaii.

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Flood$25K damage

Boundary, ID · Mar 5, 2014

The region was under a transitioning weather regime through the first week of March. March 1st came in dry and very cold under a modified Arctic air mass. This kept soil temperatures below freezing across much of the central to northern Idaho Panhandle.

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Flash Flood$535K damage

Bannock, ID · Jul 18, 2004

Extremely heavy rain...approximately 2 inches fell in 45 minutes from 3 to 4 pm MDT in Pocatello and caused extensive flooding especially along the east benches. The Center Street underpass had a foot of water covering it.

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Flood$80K damage

Latah, ID · Mar 26, 2012

A negatively tilted upper-level trough lifting through the Inland NW on the evening of March 25th through the morning hours of the 26th tapped into subtropical moisture resulting in moderate to heavy convective rainfall for central portions of the Idaho Panhandle.

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Flood$72K damage

Bonner, ID · Mar 30, 2012

A stagnant longwave pattern featuring a broad trough off the Pacific Northwest Coast and upper-level ridge over the Central US resulted in a parade of moist storm systems tracking through the Inland Northwest from March 28th through the 31st.

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