A digging trough off the OR/CA coast produced tightening pressure gradients leading to strong winds across the CWA.
Every event with a place to put it; 11 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 LKN wrote it up.
A digging trough off the OR/CA coast produced tightening pressure gradients leading to strong winds across the CWA.
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 Elko, NV wrote its last area forecast discussion before the first event at Jun 9, 2:49 AM PST, 4 hours 11 minutes earlier.
Area Forecast Discussion National Weather Service Elko NV 349 AM PDT Wed Jun 9 2021 .SYNOPSIS...Strong gusty winds ahead of a cold front are expected today. Scattered rain showers develop across the north with cooler temperatures this evening and Thursday. Dry weather with a warming trend return, beginning on Friday. && .SHORT TERM...Today through Thursday evening Gradient flow tightens as the offshore trough moves into Nevada later today. Deep mixed layer results in gusty winds this afternoon with the highest wind speeds over eastern Nevada. Wind gusts of 50-55 mph will be possible at Eureka, Ely, and Tonopah. Added Elko vicinity to the wind advisory as some hourly guidance show gusts in the 45-50 mph range. Dry lake beds will be the source of suspended dust this afternoon giving the skies a hazy appearance ahead of the cold front. In the post frontal environment, humidity increases as the trough asis moves into Nevada tonight. Scattered showers will develop over the northwest than expand eastward to the Ruby Mountains. Showers are likely north of I-80. Rainfall amounts will be light, mostly under a tenth of an inch /0.10/, but remote sensors in the northern mountains could measure a quarter inch. Showers will be tapering off Thursday morning as the trough moves downstream. Cooler day with highs in the 60s, although the northern border towns may not reach 60. .LONG TERM...Thursday night through next Tuesday Thursday night should see the robust trough depart NV and be followed up by a ridge gradually building back over the region over the weekend. This should allow Friday morning to be cold with some valleys hovering around freezing. These cold temperatures can lead to frost formation that can negatively impact crops. As the ridge builds across NV the temperatures look to rise with frost no longer being a threat as lows climb into the 40's and 50's, with mainly all 50's by Sunday night. Highs are looking to increase back into the 90s for most areas during the weekend and beyond. Generally fair and dry weather with breezy afternoon winds at times looks to accompany the ridge through the rest of the week and into next week. && .AVIATION...VFR conditions expected at all terminals for the next 24 hours. Winds generally less than 10kts through Wednesday morning, except ELY which will remain around 19g29kts. There will be a system that will be moving a cold front through NV on Wednesday with increasing mid to high clouds and strong winds during the afternoon. WMC and BAM 14-22g24-30kts, EKO 15-25g25-35kts. TPH and ELY will see the strongest winds 25-35g35-45kts. The strong winds will also lead to turbulence across the region that can be significant, so be sure to check the Aviation Weather Center turbulence forecast. The winds will also lead to areas of blowing dust and haze that could create vis reductions. At this time it doesn't look to drop below VFR levels. The front will bring some moisture with it which can cause bkn- ovc CIGs 5-8kft and light showers during Wednesday evening for EKO, BAM and WMC. && .FIRE WEATHER...Critical fire weather conditions due to the gusty winds for fire zones 425, 426, and 427 as fuels are dry. Humidity values as low as 10 percent are expected with gusts in the 45-55 mph range. Farther north, zones 437, 438, 469, and 470 the fuels remain uncured. Therefore a Red Flag Warning remains for 425, 426, and 427 from 11 am through 9 pm tonight. Winds will gradually diminish after 9 pm. && .LKN WATCHES/WARNINGS/ADVISORIES... Wind Advisory from 11 AM this morning to 9 PM PDT this evening for Northeastern Nye County-Northwestern Nye County-Ruby Mountains and East Humboldt Range-South Central Elko County- Southeastern Elko County-Southern Lander County and Southern Eureka County-Southwest Elko County-White Pine County. Red Flag Warning from 11 AM this morning to 9 PM PDT this evening for Central Nevada-Toiyabe-Northern Nye County-Mojave- White Pine and Northeast Nye Counties. && 88/90/90/88
The national radar mosaic for the moment the first event began.
11 high wind. Local standard time, as filed.
Station (TMBN2) Timber Mountain, Elevation 9000 feet.
Station (SPKNV) SR-227 Spring Creek Roundabout MM11.5, Elevation 5452 feet.
Station (RBVN2) Ruby Valley Raws, Elevation 6900 feet.
Station (UR002) 7.9E Clover Valley, Elevation 5686 feet.
Station (COMN2) Combs Canyon Raws, Elevation 6590 feet.
Station (ALLN2) Alligator Ridge Raws, Elevation 6675 feet.
Station (KTPH) Tonopah Airport, Elevation 5426 feet.
Station (DNEP8) 4.3E Baker, Elevation 5185 feet.
Station (CMP26) Warm Spring Summit, Elevation 7550 feet.
Station (WSPNV) 6.3S Clover Valley, Elevation 5795 feet.
Station (UP990) 10.4E Wells, Elevation 6121 feet.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2021Every state in 2021This day in weather historyWarnings in Nevada, June 2021
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: 953434, 953436, 953437, 953440, 953435, 953438, 953439, 953441, 953433, 953738, 953740.