A rain shower falling into very dry low level air produced high winds.
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 VEF wrote it up.
A rain shower falling into very dry low level air produced high winds.
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 Las Vegas, NV wrote its last area forecast discussion before the first event at Nov 6, 4:36 AM MST, 10 hours 18 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 336 AM PST Fri Nov 6 2020 .SYNOPSIS...Record breaking warm weather will continue for much of the area today although effects from an incoming storm system will be felt by late Friday morning in the form of strong winds. Various headlines are in effect today to address the impacts expected from these winds. The weekend will be much colder as the storm system settles over the area. Expect increasing chances of rain and snow over the region this weekend into early Monday. Dry but cool weather hangs on through much of next week. && .SHORT TERM...Through Sunday night. Satellite shows considerable area of high clouds streaming inland over the Intermountain West ahead of cold low moving south along the southwest Oregon coast. High clouds expected to hang most of the day but due to increased mixing from approaching low anticipate our temps taking one last run at records today. No change was made to our existing Advisory and Red Flag products. GEFS and ECMWF Ensemble guidance has remained quite consistent with the evolution of the pattern over the weekend. This first low along the southwest Oregon coast will continue south into central California tonight before ejecting east across the Great Basin Saturday. Second potent shortwave digs south through California Sunday before the entire trough starts to move east through Arizona Monday. Devil will be in the details regarding our overall location of greatest QPF and snow amounts with this incoming one-two punch. Latest guidance has trended upward in POPs for Saturday while indicating more widespread precipitation than 24 hours ago. QPF amounts with this first wave continue to look light. Snow levels will be falling to between 4000-5000 feet across southeast California and southern Nevada. Just coming out of a very warm stretch of weather believe warm road and soil temperatures will limit any new snow accumulations. That should change by Sunday as the second potent shortwave plows through the region. Similar to yesterday, latest guidance is producing greatest QPF values across parts of eastern Lincoln, Clark and Mohave Counties Sunday through Sunday night. Snow levels across southern Nevada expected to remain in that 4000-4500 foot level, while in Mohave County they initially start out higher before lowering to 4000-5000 foot by early Monday morning. With colder surfaces Sunday do expect to see greater snow accumulation, especially above 5000 foot. Ensemble output continues to support highest probability of >3 inches of snow for central Nye, Lincoln, Mohave and Clark County Mountains Sunday through Sunday night. Since this is the first Winter Storm of the season decided to issue a Winter Storm Watch above 5000 feet for parts of southern Nevada and northwest Arizona. Being the first Winter Storm we typically use lower accumulations as guidance for potential impacts. Much colder this weekend with high temperatures Sunday forecast to be as much as 30 degrees colder than today. .LONG TERM...Monday through Thursday... Showers and snow showers will linger in the far eastern portions of our CWA, particularly across northern Mohave County Monday morning. Otherwise, skies will continue to clear across the region as the aforementioned storm system pushes eastward out of the Desert Southwest. Though the deep trough will move out of the area, the overall synoptic pattern will remain starkly different than we've seen the last few months with a longwave trough parked over the western United States. A parade of troughs with varying intensities will pulse through the longwave pattern, allowing persistent temperatures below seasonal averages and sporadic non-zero precipitation chances across portions of the southern Great Basin through the remainder of the week. && .FIRE WEATHER...Strongest belt of winds expected over Inyo, Esmeralda and Nye counties today. The eastern Sierra Slopes and Spring Mountains could see periods of downslope winds which could produce locally stronger winds. Humidity levels are expected to fall below critical thresholds in the mid to lower elevations while remaining above thresholds in the higher elevations. Also, the lack of precipitation over the past 6 months has kept fuels at critical levels in all our zones as ERC values are well above normal for early November. && .CLIMATE...One more day of near record or record warmth for parts of the area. The table below shows the record high temperature for each location and the year the record was last set, followed by the forecast for each day. FRI NOV 6 Record(Yr)/Fcst Las Vegas 85(1988) / 85 Death Valley 96(2012) / 96 Kingman 89(1921) / 84 Bishop 81(1955) / 76 Barstow Daggett 88(1991) / 86 Needles 91(2012) / 91 && .AVIATION...For McCarran...Light southwest winds are expected to remain through the overnight period before winds start to increase later today. South to southwest winds will begin to increase by late morning/early afternoon in response to an approaching weather system. Winds are expected to peak Friday afternoon-evening with gusts to around 20-25 knots. Winds may relax this evening from 02Z-09Z. Southwest winds will increase overnight by 10-12Z at KLAS with sustained winds of 10-12 knots and gusts to 15 to 20 knots. Similar gusty winds are expected Saturday. SCT to BKN aoa 20 Kft and some FEW aoa 12-15 Kft. Dry conditions expected through Saturday morning. For the rest of southern Nevada, northwest Arizona and southeast California...Light winds expected to remain through the early morning before south-southwest winds increase across the region this afternoon. Winds will begin to increase across south-central NV by late afternoon, becoming area-wide by the afternoon. Generally expect sustained winds of 15-20 knots at most terminals with gusts to 25-30 knots. Winds will relax some this evening at most terminals, excluding KDAG, where winds will remain gusty. Similar winds are expected Saturday. SCT to BKN aoa 20 Kft and some FEW aoa 12-15 Kft. Dry conditions expected through Saturday morning. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts from the incoming storm through the weekend according to standard operating procedures. && SHORT TERM/FIRE WEATHER...Pierce LONG TERM...Varian AVIATION...Kryston For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter
1 high wind. Local standard time, as filed.
These winds occurred at the Kingman Airport. Visibility also briefly dropped to one quarter mile in light rain and blowing dust.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2020Every state in 2020This day in weather historyWarnings in Arizona, November 2020
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: 924945.