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 >

June

 

 

 

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June 1st

2011: A storm stationed itself over Spokane for 30-45 minutes, dumping very heavy rain and pea-sized hail to the city, which overwhelmed Spokane's sewer infrastructure. This resulted in several low crossings of highway 291 between Division Street and Nine Mile Road to quickly flood with anywhere from six inches to a foot and a half of water. Roughly forty basements in the area also became flooded with several inches of water. In the Indian Trails area where the terrain is steep, as much as three inches of water was observed flowing down the streets and carved out two to four foot trenches on a steep embankment going through the neighborhood park. According to city officials, the city's sewer infrastructure did not sustain any damage however several public properties submitted claims due to water damage in their basements. Twenty-five residents submitted claims with the city with an additional ten to twenty properties assumed to have gone through private insurance companies. Minor flooding occured in Okanogan county, where the Okanogan River and several smaller creeks overflowed their banks.  A combination of a log jam on the Oak Street bridge and washout of a dike at Pine Street in the city of Okanogan resulted in seepage of the Okanogan River into a few basements of homes along Second Avenue. Salmon Creek Road was closed between Spring Coulee and Danker Cutoff roads due to flooding of the Salmon Creek. The rivers receded by the 3rd. A combination of landslides and flooding along creeks and rivers resulted in the closure of numerous campsites within Perygian State Park through the first two weeks of June.

2001: High winds blew down trees and power lines in Calder and Osburn.

1995: Over an inch of rain fell in Lewiston over a 3 hour period. Storm drains were flooded and some electric lines failed.

1991: An F0 tornado was observed southeast of Genesee.

June 2nd

2011: Heavy rain fell across the mountains of northeast Washington. 0.75-1.00 inches of rain fell in 10 minutes southeast of Tumtum - along with 0.75 inch hail, and 1.10 inches fell in 45 minutes at Newport. Heavy rains were also reported north of Diamond Lake and southwest of Wolfred, where pea-sized hail also fell.

2010: Heavy rain fell across Lewis and Okanogan counties, causing mudslides onto county roads. Some roads in the region were closed for weeks.

2006: 52 mph winds knocked down several trees at Priest River.

1993: A mudslide northeast of Juliaetta, 20 miles northeast of Lewiston, killed two people when their car was swept off Highway 3.

 

June 3rd

2006: Circumhorizon Arc in Spokane

June 4th

2010: Heavy rain led to urban flooding in Coeur d'Alene. Some stormwater manhole covers were lifted up from the street with torrents of water gushing up from underneath. Some properties had flooding with water close to homes.

2007: 45 knot winds were reported at Moses Lake, where a piece of sheet metal was torn off a roof. Heavy rainfall led to minor flooding in the town of Tensed, in Benewah county.

1995: Strong thunderstorm winds knocked down power lines in Lewiston.

1993: 0.75 inches of rain fell in Spokane Valley in 15 minutes. Several streets and businesses were flooded and traffic on Interstate-90 was tied up for several hours.

 

June 5th

 

June 6th

2009: Tornadoes Near Wilbur & Creston

June 7th

2011: Following heavy snow melt, the Pend Oreille River and some of its tributaries flooded their banks. The effects of these floods were felt into July. The communities of Newport, Dalkena, Usk, Cusick, Ruby, Blueslide, Lost Creek, Ione, and Metaline Falls were affected by the floods. Some of the worst flooding was noted along the following roads: Alaska Way, Davis Road, McCloud Creek, Deeter Road, Riverbend Loop, Sandy Shores, Yergens, Le Clerc Road, Pow Wow Park Road, Dike Road, Needles Road, and Main Street in Metaline Falls; four private roads including Beehive Lane, Bear Paw Drive, Echo Lane, and Hawk Lane were also flooded. Numerous homes along these roads suffered flooding with as much as two to three feet of water in their basements and significant damage to docks, sheds, and other outbuildings. The town of Metaline was forced to bypass sewage treatment and allow its storm drains to flow directly into Pend Oreille River. The flooding had enormous impacts on recreation with many boaters avoiding the river due to a no-wake restriction in place. Additionally, the Kalispels' 37th Powwow and 4th of July celebration were cancelled due to the flooding. Diamond Lake and Bead Lake flooded their banks, causing water to inundate a few basements of lakeside homes and private roads. 

1998: A flash flood 10 miles south of the town of Hay, in Whitman county, damaged two buildings and washed away many pieces of farm machinery.

1991: A funnel cloud was reported five miles west of Genesee. 1.56" of rain fell at Republic, the most precipitation recorded in the city for a June day.

 

June 8th

2009: Wind gusts up to 45 mph (39 knots) snapped off tree limbs and blew out a utility transformer in Lewiston, causing power outages. 50 knot winds were reported across the border in Clarkston, causing a tree to fall onto a power line, knocking out power to 2,000 customers in the area. Additionally, a portable carport was blown into another power line. Another tree was uprooted knocking down another power line and landing on a shop.

2006: Lightning struck a gas station in Omak, damaging gas pumps and some electronic equipment.

2002: Unusually late snowfall fell in the panhandle mountains above 5000 feet. Snowfall totals: Bear Mountain SNOTEL...14", Lost Lake SNOTEL...6", Sunset SNOTEL...6", Mosquito Ridge SNOTEL...6", Lookout SNOTEL...4", and Mica Creek SNOTEL...4".

 

June 9th

2010: Heavy rains led to urban flooding in Lewiston. During the height of the storm, water was four to five inches deep flowing down Lewiston Orchards streets. On Bryden Avenue, water flowed out of manhole covers and sent two by four's and garbage cans floating down the street. Standing water was observed to the height of sidewalks for a few hours after the rain. From 1:43 PM PST through 1:54 PST, the ASOS at the airport in Lewiston picked up 0.54 inches of rain. A funnel cloud was spotted 8 miles north-northwest of Creston.

2003: 1/3" of rain fell on Highway 2 between Wenatchee and Cashmere in 30 minutes. This created flooding that forced the highway to close. Minor urban flooding of storm drains and culverts also resulted.

 

June 10th

2011: A landslide occurred in the Lake Chelan area. Silver Falls Creek overflowed its banks, flooding two sites at the Silver Falls Campground.

2010: A line of showers and thunderstorms in the Dusty area, in Whitman county, resulted in local damage. More than a foot of mud washed into a barn and yard after 1.4 inches of rain fell. In addition, lightning damaged a computer and knocked out phone and on-line services for some homes.

2008: An unusual snowfall occurred on the Washington Palouse from Tekoa south to Uniontown. Pullman recorded 1.5 inches of accumulation. This was the latest measurable snowfall in Pullman since records began in 1940. In fact, no snow had ever been reported during the month of June before this date. The snow damaged several trees in Colfax. In Pullman, several downed power lines and broken tree branches resulted from the snow. Property damage from this event is estimated at $2,000. Moscow also recorded a tenth of an inch of snow.

2006: A slow-moving thunderstorm complex caused Spangle Creek to overflow and flood the town of Spangle. 12 homes sustained extensive water and mud damage. Flood waters were up to five feet deep in places. Property damage from this event is unknown, but at least $70,000 damage occurred to one home. A funnel cloud was spotted near Rosalia.

2003: Large Hail Event  (more info)

 

June 11th

2011: A funnel cloud was observed east of Genesee.

2008: A thunderstorm moved through Mead and southern Spokane. Hail ranged in size in the area from 0.75 inch to 1.75 inch diameter. 0.88 inch hail was also reported northwest of Oldtown. Near Millwood, hail covered a deck to a depth of three inches. Very heavy rain also occurred with the thunderstorm with streets, backyards, and a basement flooded. Nez Perce records a temperature of 29 degrees, the coldest June temperature recorded in the city.

1997- Minor flooding and a mudslide was reported at Omak.

1993: A funnel cloud was reported by multiple people near Coulee City.

1992: Thunderstorm winds knocked down trees near Deary and in Avery. Spud Hill received 1 inch diameter hail. Lightning injured one person, set off 2 pole fires and a grass fire in Lewiston.

1991: A funnel cloud was observed 10 miles south of Pullman. Heavy showers caused a mudslide near Sherman Pass.

 

June 12th

2009: A pair of funnel clouds were reported in Grant county - the first 2 miles southeast of Ephrata, and the second 2 miles southeast of the town of Winchester, located east of Quincy. 0.88 inch hail fell near Warden. A 10'x30' mudslide was reported across a gravel road near Stemilt Creek just south of Wenatchee. Mud damage was reported to driveways and an orchard.

2006: Heavy rain fell in Chelan county, causing flooding. Rain rates of 1 to 2 inches in 1/2 hour were reported by weather spotters. Numerous reports of hillsides washed away and flash flooding were received from the Entiat River Basin, Eagle Creek, and the Ollala Canyon. The Big Creek Campground on Lake Chelan was destroyed by the flash flood. In the Entiat River Valley, two women were injured and trapped in their house when mud filled the house and knocked it off its foundation. Several other homes were damaged my mud and debris in the area. Outflow winds of 50 mph from this thunderstorm destroyed a greenhouse southwest of Dryden. Lightning struck a chimney in Wenatchee, destroying it.

1998: 0.75 inch hail was reported in the town of St. John, in Whitman county.

June 13th

2006: A severe thunderstorm moved through eastern Washington and northern Idaho in the morning. Large hail was reported throughout the storm's track. 0.75 inch hail was reported east of Worley. 0.88 inch hail was reported north of Tensed and at Newman Lake. 1.00 inch hail was reported north of Diamond Lake, north of Pullman and east of Pomeroy. 1.75 inch hail was reported at Post Falls. 61 mph winds were reported at Hauser, knocking down trees in the area. A spotter in Spokane measured 0.82 inches of rain in 10 minutes. In northwest Spokane a flash flood washed out T.J. Meenach Road and blocked portions of the road with rocks and mud. Four bedrooms in a residence basement were also flooded.

1994: Strong thunderstorm winds knocked down several trees and destroyed a large workshop near Sagle, 37 miles north of Coeur D'Alene. Power lines were also knocked down, causing power outages. Sustained winds of 35 mph with gusts of 55 mph were reported in Republic. Numerous power outages were reported all over Ferry County. 

June 14th

 

June 15th

2011: Several thunderstorms produced 0.25 inch hail along parts of Okanogan Valley and the Waterville Plateau, causing some damage to the crops. Lake Pend Oreille overflowed its banks, flooding portions of Lakeview Avenue in Bayview, ID. The lake enveloped recreational sites, docks, and ramps. There was also minor flooding of yards and the parking lot of the Scenic Bay Marina.

2009: Very heavy rainfall led to flash flooding southeast of Northport. Mud and debris flow occurred across Aladdin Road near Spirit. The public confirmed that the road was impassible during the event. Minor erosion of the road embankment was also observed approximately one mile east of Spirit along Aladdin Road. Flash flooding also caused water to run across Highway 20 between Colville and Tiger. Water washed out a small berm and approximately one foot of the pavement along the shoulder. It is estimated that this occurred near mile marker 368.

1999: 0.75 inch hail fell at Dodge, in Garfield county.

1998: 0.75 inch hail fell at Sandpoint. 1.00 inch hail fell at Oldtown.

June 16th

2006: The Kootenai River at Bonners Ferry exceeded flood stage, and did not recede until the 22nd. Severe agricultural flooding was reported, with $2.5 million in damages reported. Lightning ignited a fire above Palisades, on the Waterville Plateau. The fire burned 500 acres of land.

1999: The Methow river exceeded flood stage at Pateros through the 17th. Two yards and a basement were flooded.

June 17th

2011: Moderate flooding occurred on Lake Pend Oreille the Pend Oreille River, and the Clark Fork River. Johnson Creek Road on the south side of the Clark Fork River had some sloughing. In central and western areas of the county, Priest River inundated portions of LeClerc Road just east of Oldtown as well as Dufort Road, just east of Priest Lake. Numerous docks and lakeside yards were flooded by high water levels along the shores of Lake Pend Oreille. In Sandpoint, the basement of the Old Power House was flooded. 

1997: 0.5 inch hail was reported in Sandpoint, 0.75 inch hail was reported in Priest River and 1 inch hail was reported at Cusick, Kettle Falls and Colville. Winds reached 60 mph gusts in Cusick. A mudslide and minor flooding was reported at Entiat. 

June 18th

 

June 19th

2009: Heavy rainfall led to Addington Road in Reardan being washed out and submerged under 3 feet of water.

1995: Heavy rainfall in central Washington caused some cherry growers to lose almost 25% of their crop.

1991: Hail up to an inch in diameter fell around Lewiston and Cavendish. 

June 20th

1993: Lightning struck several transformers throughout Bonner County, knocking out power for several hours.

1991: A "gully washer" caused flash flooding and major mudslides in Clearwater, Latah, Benewah and Shoshone counties. The Warder water supply in Shoshone county was polluted.

June 21st

2005: Fierce T-Storm Winds in E. Washington

1997: 1 inch hail fell in Chelan, damaging 500 acres and $1/2 million of apple and cherry orchards.

1993: Lightning ignited several fires some 80 miles north of Coeur d'Alene.

June 22nd

2011: 1.00 inch hail fell northeast of Lookout, in Lewis county, and 1.75 inch hail fell 4 miles northwest of Rogersburg, in Asotin county. A landslide occurred just east of Tonasket.

1994: Lightning started about 20 grass fires in Chelan and Douglas counties. A funnel cloud was seen over Omak in Okanogan county. Thunderstorm winds in the above counties knocked down hundreds of trees. A large number of these trees fell onto Highway 20 in Sweat Creek, closing the highway for several hours.

June 23rd

2010: A severe thunderstorm brought large hail, flash flooding, and high winds along Highway 2 near Hartline. Field erosion, as well as damage to the wheat and barley fields, resulted from the large hail and heavy rain. Two hundred acres of wheat was lost with estimated damage of $50,000. 1.00-1.25 inch hail was reported near Hanson.

June 24th

2009: A dust devil ripped an aluminum roof off a porch and scattered pieces of it down the block in Wenatchee. Metal sheeting was also blown into powerlines, knocking out power to around 700 people. Property damage is unknown for this event. 

1996: 0.38 inch hail reported in Chewelah, Washington.

1991: Heavy rain washed out a road in Sagebrush Flats, west of Ephrata. The storm also caused flooding in Moses Lake. 

June 25th

2010: Heavy rain resulted in flash flooding and a road closure on Highway 162 near Kamiah.

2004: A severe thunderstorm brought heavy rains, hail and strong winds to Republic and northern Idaho. 0.88 inch hail fell from Coolin to Sandpoint, and 1.75 inch hail fell in Republic. Flash flooding occurred in Republic, as there were reports of dirt roads being washed out and water 1 foot deep on other roadways in town. A tree was blown over onto a house in Sandpoint. An F0 tornado formed over Priest Lake north of Coolin and passed through town. Eight homes and businesses in the town were damaged, and the roof of a fire station was peeled off.

1992: 0.75 inch hail fell in Mullan. Thunderstorm winds knocked down trees and damaged power poles in Waha and in Adams county. Fires started in Adams county due to lightning. 

 

June 26th

2013: Lewiston & Clarkston Urban Flooding

2002: Thunderstorm winds blow down power lines west of Clarkston. 

2001: Heavy rainfall causes extensive damage to cherry, apple and pear crops in Adams, Chelan, Grant and Douglas counties. The spotty rainfall, which reached .53 inches of rain in the 24 hour period extending into the 27th, caused significant damage to the dry-season crops. 40% of the cherry crop was lost. These four counties were declared agricultural disaster areas by the governor of Washington. 4000 acres of crops near Mattawa in Grant County. $20 million in damages was reported in Chelan and Douglas counties. 

1993: Ping-pong sized hail damaged hundreds of cars in a car lot in Lewiston. Additionally, the storm triggered mudslides that closed numerous roads southeast of Lewiston. 

June 27th

2019: June was a rather quiet month except on the 27th and 28th when strong to locally severe thunderstorms struck the Inland Northwest. In Wenatchee, manhole covers were blown off wi up to one foot of water coming out of the sewers. Over the two day period, Stehekin received 1.48” of rain and 1.67” in Entiat. Thunderstorms brought wind gusts of 45-55 MPH with downed trees and downed power lines in Culdesac, Lapwai, Clarkston, and Lewiston.

2004: A thunderstorm dumped heavy rain north of Winthrop, causing a mudslide that resulted with a two acre stretch of mountain side sliding into the Chewuch River. This caused the river to change course and inundate the forest road along the river.

2001: A shortwave moved over the Inland Northwest in the afternoon and evening. This storm caused marginally severe wind gusts and dumped large hail in excess of the size of quarters in northern Adams county. The hail caused a widespread swath of crop destruction that was 20 miles long and 2-3 miles wide, laying waste to about 22,000 acres of crops. In the center of the storm's path, nearly 100% of the wheat, barley, bean and pea crops were a loss. $4 million in damages was reported. Brief but intense rainfall also caused the flooding of several coulees in the eastern Columbia Basin; flooding occured west of Ritzville and in Harrington. 51 mph gusts were recorded south of Beverly.

June 28th

2004: 0.5-0.75 inch hail was reported near Clayton. 

1992: A thunderstorm outbreak occurred over Eastern Washington. 80mph gusts snapped trees in Okanogan county. Golf-ball sized hail fell over Mansfield, destroying nearly all of the winter wheat crop in that area. 

June 29th

2013: Flash Flood & Debris Flows - Wenatchee

2010: Mammatus Clouds on the Camas Prairie

2007: A line of severe thunderstorms tracked through parts of eastern Washington and northern Idaho. Extensive damage was reported from Kootenai county to the Canadian border. Numerous trees were blown down with power outages common due to winds between 60-70 MPH across Idaho and at Rockford. Over 100 power poles had to be replaced, including at least 70 that snapped near Priest Lake. At least 15,000 homes in Kootenai, Bonner, and Boundary counties lost power, including 100% of homes in Boundary county. Trees fell onto several homes, cars, and roadways, including highway 95 which was blocked north of Bonners Ferry and between Bonners Ferry and Sandpoint. The Army National Guard responded to provide additional aid to emergency personnel. The port of entry into Canada briefly closed due to the storm. 0.75 inch hail fell at Hayden, 1 inch hail fell at Asotin, and 1.75 inch hail fell at Winchester and south of Culdesac.

1994: A large dust devil tore off a large chunk of a metal roof in Wilbur. No injuries were reported.

June 30th

2005: Record Warm June 

2008: Strong winds blew through eastern Washington and northern Idaho. The peak wind gust at the Lewiston Airport was 48 MPH. This resulted in several tree branches snapping off trees. Around 1,900 customers in Lewiston lost power during the storm. Near Hooper Junction in Adams county in Washington, 60-70 mph winds took an entire wall off a six year old barn. Damage extended at least three trestles into the barn and stripped aluminum siding and shingles from the barn. Other damage on the ranch included six by six posts broken in half and the top of a tree estimated to be five inches in diameter was completely sheared off. 42 mph winds knocked out power to 752 homes in Clarkston. 0.75 inch hail was reported 14 miles southwest of La Crosse and 3-4 miles southeast of Wilbur. Omak records a temperature of 103 degrees, the hottest June temperature recorded in the city.