National Weather Service United States Department of Commerce

Excessive Heat in the Interior West; Monsoon Conditions in the Southwest

Dangerous heat is expected to be in place across portions of California, especially the Central Valley, and across the Interior Northwest into Friday. Heat Advisories will also be in place across the southern Plains into the Lower Mississippi River Valley. Monsoonal showers and thunderstorms may result in flash flooding and debris flows from the Four Corners region and Southwest through Friday. Read More >

April

 

 

 

 

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April 17th

 

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April 20th

 

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April 21st

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April 30th

 

 

 

 

 

April 1st

 

April 2nd 

2017: Landslides

2011: Many creeks and rivers in northern Idaho overflowed their banks, resulting in damage, closures, and evacuations along numerous roads along with minor flooding of six homes. through the 3rd. Roads that were damaged include Webb Road, McCormack Ridge Road, Garden Gulch Road near Highway 95, Cottonwood Creek Road, Flatiron Road, and Mission Creek Road near Highway 95. Reservation Line Road and Webb Canal Road were also closed for a short time due to flooding. The worst of the flooding occurred along Webb Creek which flooded several low-lying areas, including the junction with Highway 95 and the junction with McCormick Ridge Road where reports stated water covered the bridge at the junction of McCormick Ridge Road. The Web Store Smoke Shop was inundated with approximately one foot of water. Around six homes along Webb Road experienced flooding up to the homes foundations. Mission Creek also spilled out of its banks with water reported to be flowing down Mission Creek Road, over the Mission Creek Bridge, and into nearby pastures and front yards. Sweetwater Creek, Lapwai Creek and Cottonwood Creek also had minor flooding with the Spalding church suffering the greatest damage. A culvert was plugged along Lapwai Creek near the intersection of Highway 95 and Garden Gulch Road causing road damage and a two day road closure. A plugged culvert along Sweetwater Creek led to approximately 30 feet of pavement erosion along Flatiron Road and 1500 feet of ditch and shoulder erosion. The Emergency Manager of Nez Perce County estimated flood damage to the roads was around $74,000 with most of the damage along Flatiron Road and Garden Gulch Road near Highway 95. On the Nez Perce Indian Reservation, at least one septic tank was compromised due to flooding. The flooding caused basement flooding in at least four homes throughout the reservation. Two private bridges were destroyed or compromised and classified as unsafe for use. The St Maries River flooded it banks at Fernwood covering a manhole in town, leaking wastewater into the river. Flooding of Lawyer's Creek southwest of Kamiah resulted in closures of Lawyer's Creek Road between highway 162 and Flying B Ranch. The main creek split with one flow going toward Flying B Ranch where one resident reported at least one foot of water around his house. The rest of the creek flowed eastward to Robinson's Pond where it ate away at the levy between the pond and highway spilling about three feet of water over the road. 

 

April  3rd

 

April  4th

 

April  5th

1991: Sandpoint Flooding

1972: Numerous severe thunderstorms with large hail, damaging winds, and two tornadoes were reported over parts of eastern Washington. An F3 tornado touched down in Creston, Lincoln County, and to the north, an F2 tornado struck rural Stevens County, near Kettle Falls. Additionally, the destructive and deadly Vancouver tornado struck in western Washington. This F3 tornado led to 6 deaths, ~300 people injured, and $6 million in damage. 

 

April  6th

2011: A funnel cloud was observed west of the Spokane WFO. Heavy snowfall fell in the Central Panhandle Mountains due to a cold front stalling over the area. Deep Creek flooded portions of Deep Creek Loop, also listed as Old Highway 95 causing sloughing of the roadway and embankment. Pavement damage was 500 feet by nine feet wide. The route is a major county through route from Naples to Bonners Ferry.

1994: An F0 tornado touched down west of Riverside State Park, 5 miles northwest of Spokane. Power lines, trees, and a rooftop were damaged.

 

April  7th

2017: Palouse Wind Damage

April 8th

2010: Heavy snow fell across the mountains of northern Idaho and northeastern Washington. Snow accumulations from SNOTEL's include 10 inches at Hidden Lake, five inches at Bear Mountain, Lost Lake with seven inches, Silver Mountain Ski Resort with four to eight inches, and Bunchgrass SNOTEL picked up seven inches of snow. Strong winds of up to 50 knots were reported across the Palouse, around Spokane and around Coeur d'Alene. About 3,700 customers lost power in Moscow for about 20 minutes. One tree fell and struck two cars in Moscow. In Kingston, a rotted pine tree fell on a home and damaged the chimney and storage shed. A power line was also taken out when the tree fell. Around 300 customers lost power in Kellogg and St. Maries. In Sandpoint, downed trees led to minor damage with one tree falling on a pickup truck. A spruce tree, 80 feet tall, was blown down taking out a wooden fence and totaling a car. At Hayden Lake, Harrison, and Coeur D'Alene 1,000 power outages were reported. Several trees and limbs were blown down during the storm in the Spokane area, leading to power outages. About 1,000 homes were without power during the peak of the winds in the Spokane area. In Colfax, the high winds took down a brick encased duct.

1993: Thunderstorm winds caused a tree to fall on top of a parked car in northern Coeur d'Alene. No one was inside.

 

April 9th

2019: Heavy rain in the afternoon and early evening hours overwhelmed an already saturated soil in the Palouse. The heavy burst of rain caused flooding and mudslides in the area. The city of Pullman experienced flash flooding down the Missouri Flat Creek, which brought up to 4 feet of water in the North Grand Avenue business district. Numerous businesses were damaged, cars swept away, and many water rescues made from flooded businesses. There were no known injuries and by early morning hours, the creek had receded back to its banks.

1991: Priest River Tornado

April 10th

 

April 11th

2020: There was a Wind Advisory issued due to a vigorous cold front moving through the area. Dust was seen on area cameras, as well as afternoon winds reaching gusts of 42 mph on the Warden DOT sensor. Blowing dust and poor visibility lead to a 7 car pile up and an Interstate-90 closure in the afternoon. Grant and Adams counties had blowing dust, with the accident occurring on I-90 east 11 miles west of Ritzville. There were no deaths, but minor injuries resulting from the accident.

 

April 12th

 

April 13th

2017: Landslides

2000: Late Spring Winter Storm

 

April 14th

2009: North Spokane Heavy Snow

2002: Rapid mid-elevation snowmelt occurred after several days of warm weather, high winds and rain. The Coeur d'Alene river, the St. Joe river and the Grande Ronde river crested above flood stage. No significant damages were reported, although sandbagging was required to keep water out of several homes near Cataldo. The Coeur d'Alene returned to below flood stage on the 16th, and the St. Joe returned to under flood stage on the 20th. Strong jet streams were recorded in eastern Washington and northern Idaho. Mission Ridge reported a peak gust of 100mph. Spokane International Airport reported sustained winds of 43 mph, with a peak gust of 48. Lewiston reported sustained winds of 41 mph and a gust of 54 mph. Several power lines were knocked down in Chelan county, knocking out power in areas near Lake Wenatchee, Leavenworth, Manson and Chelan.

2000: Heavy rains and snowmelt caused the Coeur d'Alene River at Cataldo and the Little Spokane River at Dartford to flood through the 16th. Several basements were flooded and minor road damage was reported. 4-6 inches of snow fell in the Central Panhandle Mountains, causing several accidents on Highway 95. 1.34 inches of rain fell at Davenport, the most precipitation to fall in the city on an April day.

 

April 15th

 

April 16th

 

April 17th

2017: Landslides

1992: Strong cold front brings strong gradient winds throughout Idaho, mainly affecting the southern part of the state. Crop damage and uprooted trees were reported throughout the state.

 

April 18th

 

April 19th

2008: Freezing Temps Kill Crops

April 20th

2005: Lenticular Clouds

April 21st

 

April 22nd

2002: Strong westerly jet streams cause high winds across eastern Washington. A school near Mansfield reported sustained winds of 40mph. Elsewhere in Douglas county, winds blew down power lines, causing power outages. The Grant County airport, northwest of Moses Lake, reported sustained winds of 43 mph with a gust of 48 mph, reducing visibility to 1 mile due to blowing dust. Spokane International Airport reported 41 mph sustained winds with a peak gust of 50 mph, reducing visibility to 3 miles due to blowing dust. Several trees blew down in the city, destroying a fence. The wind caused power outages southwest of Spokane. 77 mph gusts were recorded near Oroville, knocking down power lines and causing power outages in Aeneas Valley and Tunk Creek.

 

April 23rd

2005: Strong wind gusts were reported in the valleys of the Cascades and in the Columbia Basin. 60 mph winds were recorded in Coulee, where the winds blew down two trees and destroyed an irrigation pump house. 70 mph gusts were reported at Chelan, causing trees and power lines to blow down, causing power outages in the area. 58 mph gusts were reported at Twisp, causing trees the be blown down onto power lines and a car. Power outages and several brush fires were also started in the Twisp area.

1998: 0.50 inch hail reported north of Republic, northwest of Okanogan and at Nespelem, 0.75 inch hail reported in Naples, 1 inch hail reported at Brewster, Othello, and Barstow and 1.75 inch hail reported in and north of Bonners Ferry. There were 4-6 inches of standing water on Spokane roads. 50 mph gusts were recorded in Okanogan county. Strong winds also knocked down power lines in Bonners Ferry.

1996: A flash flood washed out numerous roads, destroyed a house and damaged another in Gold Creek, 5 miles west of Colville. A record 1.44 inches of rain fell at Saint John.

 

April 24th

1996: Rain and snow melt in high elevations cause the St. Joe and Coeur d'Alene rivers to flood through the 26th. Kellogg recorded 1.82 inches of rain, the most precipitation recorded in the city for an April day. Other April rainfall records set this day include: The Cabinet Gorge 1.24'', Pullman 1.77'',. Structures that were still being repaired from a flood the previous February were washed out. 75 families were isolated. 30 cattle drowned in Cataldo. Several homes were flooded in Kingston and Rose Lake. Two dikes leaked in Benewah county. The county was later declared a disaster area. The Pine Creek also overflows its banks by 2 feet in Shoshone county.

1993: 0.50 inches of rain fell in 15 minutes in the vicinity of Conconully in Okanogan Country. Pea-size hail was reported. A flash flood was also reported, with unknown damages.

 

April 25th

2011: A narrow swath of heavy precipitation fell over northeastern Washington, primarily over northern Spokane and southern Pend Oreille Counties from the evening of the 25th into the morning of the 26th. Some mountain locations received upwards of one to three inches of liquid which primarily fell as snow. The hardest hit area was Mount Spokane where two to three feet of heavy wet snow fell. The weight of the snow coupled with already saturated soils resulted in 40 to 50 uprooted or snapped mature trees along highway 206 from Bear Creek Lodge to Mount Spokane Ski Lodge.

2008: An F0 tornado touched down 6 miles southwest of Kettle Falls. The tornado damaged the roof of a garage.

1993: Thunderstorm winds caused heavy rain and marble-sized hail throughout Whitman County. The strong winds bent trees, and a lightning strike killed the power to Oakesdale.

 

April 26th

 

April 27th

2020: With a cold front passing on the 27th, a semi and car collision occurred in the early afternoon due to extremely poor visibility (< ¼ mile) from blowing dust on Highway 26, east of Dusty, WA. The Dusty weather sensor indicated southwest winds of 25-32 mph with gusts of 35-45 mph. A dry spring and strong winds led to blowing dust and poor visibility on Interstate-90 in the Columbia Basin and state route closures, such as HWY 26 in Whitman County.  

2004: A cold front passage caused high winds across northern Idaho and eastern Washington. 60 mph gusts in Ponderay cause several trees to fall onto homes. A 72 mph gust was recorded at Wanapum Dam, with 70 mph gusts being recorded at Oroville, 61 mph gusts recorded at Moses Lake and 59 mph gusts recorded at Silicot Island in the Palouse. The winds at Moses Lake damaged a marina and caused blowing dust that reduced visibility to zero. This caused numerous traffic accidents, which claimed the life of a motorist. A tree fell on a house near Peshastin.

2001: A cold front moved into a moist and unstable air mass, causing severe thunderstorms across eastern Washington. 1 inch to 1.75 inch hail was reported from Colfax to Pullman. Another storm brought frequent lightning to Spokane. Lightning struck two electric substations on the north end of Spokane, cutting power to 15,000 homes for 2 hours.

2000: T-storm Event

1999: A cold-core tornado (F0) touched down briefly in a farm field on the outskirts of Mead. A funnel cloud was also spotted outside of Freeman.

 

April 28th

 

April 29th

 

April 30th

2011: A 30 mph gust blew a trampoline into a nearby power station in the Spokane area, resulting in power outages for nearly 11,000 residents.

2003: 0.75 inch hail fell in a 2 square mile area near Royal City.