After record hot temperatures occurred over the weekend a cold front passed through Monday June 29,2015 and produced numerous thunderstorms, some being severe, over Eastern Washington and Northern Idaho.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OTX wrote it up.
After record hot temperatures occurred over the weekend a cold front passed through Monday June 29,2015 and produced numerous thunderstorms, some being severe, over Eastern Washington and Northern Idaho.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Spokane, WA wrote its last area forecast discussion before the first event at Jun 29, 1:12 PM PST, 1 hour 43 minutes earlier.
Area Forecast Discussion
National Weather Service Spokane WA
212 PM PDT MON JUN 29 2015
.SYNOPSIS...
A weather system will trigger isolated to scattered thunderstorm
activity through early this evening. Tuesday and beyond will be
mainly dry but continued very warm. Friday looks to be the warmest
day this week...with valley highs ranging from 96 to 104.
&&
.DISCUSSION...
Tonight...Models show an upper level disturbance reaching Central
WA late this afternoon...tracking near the Canadian border this
evening and then exiting the region by midnight. As it does so the
two main areas of expected convection are north and south of a dry
slot that tracks into the Columbia Basin. The northern convection
is expected to develop along the East Slopes of the Cascades this
afternoon tracking into the northern mountains during the late
afternoon and early evening hours. The second area is expected to
develop over NE Oregon this afternoon tracking towards the Blue
Mountains, Lewiston area, Camas Prairie, and possibly southern
Shoshone county during the late afternoon and early evening. In
both of these areas there is sufficient CAPE values of 1000-2000
J/KG and shear that a few strong or severe storms can not be ruled
out. Elsewhere thunderstorms are expected to be isolated in
nature. Fire starts remain a concern with the lightning so red
flag warnings remain in place. The storms given the high
precipitable water should be mostly wet. Will have to monitor
these storms as they develop or track over the Cascade burn scars
late this afternoon.
This disturbance will also usher in breezy winds through the
Cascade gaps during the late afternoon and evening hours. Relative
humidity values are marginal for critical values...but with
ongoing fires a red flag warning remains in place for the
Wenatchee area, Kittitas Valley, and Waterville Plateau.
Overnight skies will clear as the disturbance exits. This will
allow for a cooler night compared to the past couple nights.
However the lingering low level moisture will limit radiational
cooling potential...with reading still around 10 degrees to 15
degrees above normal. A few fog patches are possible late tonight
around Priest Lake and Bonners Ferry. JW
Tomorrow through Monday...High pressure over the Western US re-
amplifies in the wake of today's cold front passage. So with the
exception of a minor mention of thunderstorms up near the Canadian
border tomorrow dry and hot conditions will reappear and the hot
temperatures to get hotter...peaking on Thursday or Friday. A very
weak and dry cold front pushes through and flattens the ridge a
bit Friday afternoon which should allow for breezy/gusty southwest
to northwest winds Friday afternoon and night. Saturday through
Monday the flattened ridge remains in place with the jet stream
still remaining to the north in Southern Canada which allows for
the dry forecast to continue with a very slight decrease in
temperatures based on the lower 500mb heights in the flattened
ridge and the potential for extremely minor disturbances to pass
through it and bring some clouds and breezy/gusty wind at times.
All forecast temperatures remain well on the warm side of climo
for this time of year. /Pelatti
&&
.AVIATION...
18Z TAFS: An upper level trough moving through the region today
will continue scattered showers at most TAF sites mainly between
18Z and 01Z with isolated thunderstorms possible. A dry low level
air mass will allow primarily VFR ceilings with these
showers...although thunderstorms may produce brief MVFR ceilings
in their cores after 18Z as the air mass moistens. A wildfire in
the vicinity of KEAT may produce MVFR visibilities in smoke
before west winds increase after 22Z. After 20Z drying and
clearing from west to east will move through the region with
breezy conditions especially between KEAT, KMWH, KPUW and KGEG
sites with possibly patchy blowing dust in the basin. VFR
conditions under mostly clear skies are expected tonight into
Tuesday morning. /TC
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 67 93 65 94 66 97 / 20 0 0 0 0 0
Coeur d'Alene 64 90 61 93 61 96 / 20 0 0 0 0 0
Pullman 59 89 56 91 55 94 / 20 0 0 0 0 0
Lewiston 69 98 65 99 66 102 / 20 0 0 0 0 0
Colville 62 95 60 96 61 99 / 40 10 10 0 0 0
Sandpoint 57 90 54 91 55 94 / 40 10 0 0 0 0
Kellogg 61 89 60 91 57 95 / 40 0 0 0 0 0
Moses Lake 67 98 65 98 68 101 / 0 0 0 0 0 0
Wenatchee 74 98 70 99 72 103 / 10 0 0 0 0 0
Omak 64 97 61 96 62 101 / 20 0 0 0 0 0
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Red Flag Warning until 8 PM PDT this evening for East Washington
Central Cascade Valleys (Zone 677)-East Washington North
Cascades (Zone 685)-East Washington Northeast (Zone 686)-
East Washington Northern Columbia Basin (Zone 673)-East
Washington Okanogan Highlands (Zone 687)-East Washington
Okanogan/Methow Valleys (Zone 684)-East Washington South
Central Cascade Valleys (Zone 676).
&&HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 530 AM PDT MON JUN 29 2015 IDZ001>004-026-027-WAZ031>038-301230- NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS- 530 AM PDT MON JUN 29 2015 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...East Central Washington...North Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT Isolated to scattered thunderstorms will be possible across eastern Washington and northern Idaho through Monday evening. Some thunderstorms could be strong...especially in the afternoon and evening. The highest risk will be along and north of Interstate 90, from the Columbia Basin through northeast Washington, and across the northern Panhandle. Stronger storms may include gusty and locally damaging winds, as well as hail. In addition some thunderstorms may be dry and carry the risk of wildfire ignitions. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY No hazardous weather is expected at this time. WAZ041>044-301230- WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY- WATERVILLE PLATEAU- 530 AM PDT MON JUN 29 2015 This Hazardous Weather Outlook is for portions of Central Washington and North Central Washington. .DAY ONE...TODAY AND TONIGHT A threat of isolated to scattered thunderstorms continues, with the best threat moving to the north Cascades and Okanogan after the morning. Some thunderstorms may be dry and may carry abundant lightning and the risk of wildfire ignitions. Thunderstorms may also carry gusty winds. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY No hazardous weather is expected at this time.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 308 PM PDT MON JUN 29 2015 WAZ041-044-292300- WENATCHEE AREA WA-WATERVILLE PLATEAU WA- 308 PM PDT MON JUN 29 2015 ...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL DOUGLAS AND EAST CENTRAL CHELAN COUNTIES UNTIL 400 PM PDT... AT 307 PM PDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ORONDO...OR 20 MILES NORTHEAST OF WENATCHEE...MOVING NORTHEAST AT 45 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... CHELAN...WATERVILLE...ENTIAT...STAYMAN...CHELAN FALLS AND AZWELL. THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. LAT...LON 4761 12021 4767 12025 4795 11987 4774 11965 TIME...MOT...LOC 2207Z 240DEG 41KT 4768 12011 SB
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
323 PM PDT MON JUN 29 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM HAIL 2 S ENTIAT 47.65N 120.21W
06/29/2015 E0.88 INCH DOUGLAS WA EMERGENCY MNGR
EMERGENCY MANAGER WENT THROUGH THUNDERSTORM ON HIGHWAY 97
SOUTH OF ENTIAT. THE STORM PRODUCED MODERATE HAIL...HEAVY
RAINFALL...AND STRONG WINDS CAPABLE OF BENDING FRUIT
TREES. LIGHTNING IGNITED TWO NEW FIRES BUT THE RAINFALL
QUICKLY PUT THEM OUT.
&&
SBODNARThe Spokane radar (KOTX), 178 km away, was scanning. The volume nearest the first event began at 22:53 UTC.
5 thunderstorm wind, 1 hail, 1 flash flood. Local standard time, as filed.
An emergency manager went through a thunderstorm on highway 97 south of Entiat. The storm produced moderate hail, heavy rainfall, and strong winds. Lightning ignited two new fires but the rainfall quuickly put them out.
Law enforcement reported debris and rocks over highway 2 in Pine Canyon near milepost 145 and 146.
An emergency manager reported a treee fell over onto a house. Time was based off radar.
An emergency manager reported multiple trees and power lines down along highway 20 east of Colville. Numerous people were stranded at Flodelle Campground due to the fallen trees. Time was based off radar.
An emergency manager reported multiple trees and power lines down along highway 20 east of Colville, WA. Highway 20 closed from milepost 360 at Artman Gibson Road to milepost 379 at Beaver Lodge. It was reported that 5 to 6 homes were damaged by toppled trees.
Law enforcement reported trees and power lines down on state route 231 between mile post 42 and 45.
Law Enforcement reported multiple trees and one power line down across highway 20 at mile post 390. Time was based off radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2015Every state in 2015This day in weather historyWarnings in Washington, June 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 574845, 574847, 574831, 574835, 574839, 574842, 574836.