During the evening of April 27th strong wind gusts to 50 mph downed trees and caused power outages in the Coles Corner and Lake Wenatchee area. The winds were likely the result of a cold front and terrain channeling between mountain ranges in the area.
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.
During the evening of April 27th strong wind gusts to 50 mph downed trees and caused power outages in the Coles Corner and Lake Wenatchee area. The winds were likely the result of a cold front and terrain channeling between mountain ranges in the area.
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 27, 5:39 PM PST, 1 hour 21 minutes earlier.
Area Forecast Discussion National Weather Service Spokane WA 639 PM PDT Fri Apr 27 2018 .SYNOPSIS... Expect an abrupt pattern change with breezy, cooler and showery weather beginning early Saturday morning and continuing into early next week. High temperatures will drop around 20 degrees compared to Friday. The cool and unsettled weather will ease by midweek as a ridge rebuilds over the Inland Northwest with warmer and drier weather. && .DISCUSSION... The gusty increased southwest winds associated with the cold front approaching from the south has kicked up a quantity of dust in Eastern Oregon and Southeast Washington and the expectation is the trend will continue into the evening so some mention of areas of blowing dust has been added to parts of the forecast for tonight. /Pelatti && .AVIATION... 00Z TAFS: Upper level low pressure system to pass through the aviation area and spread rain and possibly a few thunderstorms with infrequent lightning. In addition winds will be gusty at times as this disturbance moves through. Even with this convection ceilings and visibilities will remain high enough to allow VFR conditions to prevail. In addition some mention of blowing dust has been included tonight. /Pelatti && .PRELIMINARY POINT TEMPS/POPS... Spokane 47 59 42 57 41 57 / 30 60 10 40 40 40 Coeur d'Alene 47 58 42 56 40 54 / 20 50 20 50 60 50 Pullman 47 58 42 55 40 54 / 60 70 20 60 40 30 Lewiston 54 63 46 62 45 60 / 50 70 30 50 30 30 Colville 50 61 44 60 41 61 / 10 80 20 60 50 30 Sandpoint 49 57 41 54 39 53 / 10 80 20 50 70 50 Kellogg 44 55 39 53 38 51 / 10 50 30 70 60 60 Moses Lake 52 66 42 66 43 65 / 80 50 10 10 20 20 Wenatchee 53 62 43 63 43 63 / 80 40 10 10 10 10 Omak 54 62 44 63 43 64 / 20 100 20 30 30 10 && .OTX WATCHES/WARNINGS/ADVISORIES... ID...None. WA...None. &&
Hazardous Weather Outlook National Weather Service Spokane WA 539 AM PDT Fri Apr 27 2018 IDZ001-004-WAZ037-038-042-043-281245- Northern Panhandle-Central Panhandle Mountains- Northeast Mountains-Okanogan Highlands- East Slopes Northern Cascades-Okanogan Valley- 539 AM PDT Fri Apr 27 2018 This Hazardous Weather Outlook is for portions of North Idaho... North Central Washington and Northeast Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Warm temperatures and mountain snowmelt, followed by cooler temperatures and increased precipitation for the weekend will lead to increased runoff. Significant rises on rivers and streams are expected from the East slopes of the Cascades through Northern Washington and into the Idaho Panhandle this weekend into next week. Temperatures across area lakes and rivers will remain in the 40s, where hypothermia can quickly set in. IDZ002-003-026-027-WAZ031>036-041-044-281245- Coeur d'Alene Area-Idaho Palouse-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-Wenatchee Area- Waterville Plateau- 539 AM PDT Fri Apr 27 2018 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...Central Washington...East Central Washington...North Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Temperatures across lakes and rivers will remain in the 40s, which will increase the threat of hypothermia quickly setting in if exposed to the cold water.
2 strong wind. Local standard time, as filed.
Chelan County Public Utilities reported power outages in the Coles Corner and Lake Wenatchee area with trees down and blocking Cedar Brae Road.
The Dirty Face RAWS station recorded a wind gust to 50 mph while another mesonet station on Lake Wenatchee (CWOP station EW8552) recorded a wind gust to 46 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2018Every state in 2018This day in weather historyWarnings in Washington, April 2018
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: 750960, 750961.