A cold spring weather system brought a light snow to Northeast Washington.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
A cold spring weather system brought a light snow to Northeast Washington.
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 Apr 5, 9:28 PM PST, 2 hours 33 minutes earlier.
Area Forecast Discussion
National Weather Service Spokane WA
1028 PM PDT SUN APR 5 2015
.SYNOPSIS...
A cold spring system will track into the region this evening into
Monday. This system will likely produce moderate to locally heavy
precipitation amounts, some of which will fall as snow. The
greatest risk for valley snow will be across the mountain valleys
of the Okanogan Highlands, Northeast Mountains and the Idaho
Panhandle. Localized heavy snowfall accumulations will be
possible, especially over the mountain passes. Unsettled and cool
conditions will persist through midweek then a drier and warmer
pattern will return by the end of the week.
&&
.DISCUSSION...
Additional update this evening to add a slight chance of
thunderstorms for Monday afternoon and evening forecast as the
atmosphere should be fairly conditionally unstable with the cold
pool of near -30 to -32 degree C air at 500mb and all short term
models are suggesting a number of mesoscale shortwaves will be
moving through it in a south to north trajectory tomorrow.
Expecation is the few thunderstorms, if they form, will be
shallow low topped pulse type that move with a slow storm motion
to the northeast at about 10 mph. /Pelatti
&&
.AVIATION...
06Z TAFS: Numerous small scale weather disturbances will spread
showers from south to north over the aviation area over the next
24 hours. These showers will contain a spring mix of precipitation
including rain, snow, and small graupel at times with the more
intense precipitation bringing ceilings and visibilities down to
IFR at times. Between 21Z and 03Z there is potential for a few
shallow low topped weak pulse thunderstorms. /Pelatti
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 32 45 31 56 34 57 / 100 90 30 20 10 10
Coeur d'Alene 32 44 29 57 33 56 / 100 100 40 20 10 20
Pullman 32 46 33 57 34 54 / 100 100 20 20 10 10
Lewiston 34 51 35 61 39 58 / 100 100 20 20 10 10
Colville 32 46 31 57 31 59 / 100 100 50 20 10 10
Sandpoint 32 45 26 55 31 56 / 100 90 60 20 10 20
Kellogg 33 41 26 54 30 52 / 100 100 40 30 20 40
Moses Lake 36 53 35 61 35 62 / 60 60 20 30 10 10
Wenatchee 37 52 39 59 38 61 / 60 70 20 30 10 10
Omak 35 49 32 59 31 61 / 90 100 40 20 10 10
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Winter Weather Advisory until 11 AM PDT Monday for Central
Panhandle Mountains-Coeur d'Alene Area-Idaho Palouse-Lewis
and Southern Nez Perce Counties-Northern Panhandle.
WA...Winter Weather Advisory until 11 AM PDT Monday for Northeast
Blue Mountains-Northeast Mountains-Okanogan Highlands-
Spokane Area-Washington Palouse.
Winter Weather Advisory from 11 PM this evening to 2 PM PDT
Monday for East Slopes Northern Cascades.
&&HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 612 AM PDT SUN APR 5 2015 IDZ026-WAZ032-034-035-041-043-044-061315- LEWISTON AREA-LOWER GARFIELD AND ASOTIN COUNTIES-MOSES LAKE AREA- UPPER COLUMBIA BASIN-WENATCHEE AREA-OKANOGAN VALLEY- WATERVILLE PLATEAU- 612 AM PDT SUN APR 5 2015 This Hazardous Weather Outlook is for portions of North Central Idaho...Central Washington...East Central Washington...North Central Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT A cold weather system will bring an increased chance of rain this evening and into Monday morning. Temperatures will generally remain warm enough for rain. However there may be some isolated pockets of snow across the higher benches. Wet slushy snow on these roads will make for hazardous travel conditions Monday morning. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Rain will decrease through the day on Monday. Please see our Weather Story at http://www.wrh.noaa.gov/FXC/wxstory.php?wfo=otx IDZ001>004-027-WAZ031-033-036>038-042-061315- NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES- NORTHEAST BLUE MOUNTAINS-WASHINGTON PALOUSE-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS- EAST SLOPES NORTHERN CASCADES- 612 AM PDT SUN APR 5 2015 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...North Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT A cold weather system will bring snow to the valley floors on Sunday night into Monday morning with light accumulations expected. Locally heavy snow accumulations will be possible across the Okanogan Highlands, Northeast Mountains and in the Idaho Panhandle, especially over the mountain passes. Slushy accumulations on roadways will make for hazardous travel conditions. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Near freezing overnight temperatures will continue through Tuesday morning. Please see our Weather Story at http://www.wrh.noaa.gov/FXC/wxstory.php?wfo=otx
The national radar mosaic for the moment the first event began.
4 winter weather. Local standard time, as filed.
A spotter reported 2 inches of snow in southeast Thorton, Washington.
The NWS office 4 miles northwest of Airway Heights, WA reported 1.3 inches of snow.
A NWS Employee reported 2 inches of snow 14 miles northwest of Spokane, WA at an elevation of 2386 feet above sea level.
The Spokane International Airport in Spokane, WA reported 1.0 inches of snow.
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, April 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: 559261, 559262, 559263, 559264.