A strong low pressure system brought locally high winds to the high elevations of the Spring Mountains.
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The episode as NWS VEF wrote it up.
A strong low pressure system brought locally high winds to the high elevations of the Spring Mountains.
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 Oct 25, 1:30 AM PST, 2 hours 50 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 230 AM PDT Mon Oct 25 2021 .SYNOPSIS...A potent Pacific Storm will continue to affect the southern Sierra this morning, bringing significant snowfall to the peaks and passes. The system will then spread east through the rest of our region today through this evening, bringing strong wind gusts and light to moderate precipitation. Temperatures will bottom out on Tuesday before improving through the week as ridging and dry conditions returns to the Desert Southwest. && .SHORT TERM...Today and tonight. The game is on as the AR stream directs moisture into the Southern Sierra this morning with spillover into the Owens Valley. Total liquid amounts of 2-5 inches are forecast in the highest elevations through 6 am Tuesday morning. Total snow accumulations of 3 or 4 inches are expected at Aspendell but there could be upwards of 3-4 feet at the peaks and passes in the highest elevations above Aspendell. A Winter Weather Advisory is in effect through 11 pm this evening for areas in the southern Sierra above 9000 feet. We should see light to moderate rain developing in parts of the Owens Valley this morning with a 0.25-0.50 forecast in Bishop at the northern end of the Owens Valley by the time the storm is over. Rain will spread across Esmeralda County after daybreak then across the rest of the region this afternoon and tonight. Total rain amounts by 6 am Tuesday morning are expected to range from a trace to a couple of tenths in the desert locations, generally a 0.25 to 0.50 inch across south central Nevada with greater amounts to around an inch in the higher elevations. In Las Vegas, generally less than 0.10 inch of rain is expected by the time this storms winds down Tuesday morning but there could be slightly higher amounts in the far western areas of the valley. Total snow amounts in the Spring Mountain through 6 am Tuesday will generally be an inch or less below 8000 feet and this would come at the tail end of the system. Snow accumulations of any significance are expected above 10,000 feet but there could be a few inches of snow that stick at elevations down to 9,000 feet this evening as snow levels drop. Winds will be another aspect of this system as it approaches and moves across the area today. Wind Advisories are in effect with gusts from 40-55 mph expected in general except gusts up to 65 mph possible in elevations above 5,000 feet. .LONG TERM...Tuesday through Saturday. The long term forecast beyond Monday will be much quieter across the board with a high confidence forecast in a building ridge across the Western CONUS. Other than some breezy conditions across the Colorado River Valley with northerly surface winds, dry and warm conditions are expected to close out the week and persist potentially into next week. Some long range GEFS members hint at a weak Pacific trough by early next week but cluster analysis in the 7+ day range shows this to be a very low chance of development, and the prevailing thinking across the vast majority of members in the EC/GEM are to hold on to a stubborn ridge into early November. This continues to be backed by the CPC 6-10 and 8-14 day outlooks indicating drier and warmer than average through the rest of October and into early November. && .AVIATION...For McCarran...Periods of thick high clouds will continue to stream overhead today. A short period of rain with ceilings under 8000 feet will arrive between 23Z and 04Z, followed shortly thereafter by clearing skies. Winds will also be a concern today, with east to southeast winds possibly reaching 10 knots early this morning before south winds gusting 25 to 35 knots take over from late morning until the rain leaves late this evening. Winds will subside overnight, and then few or no weather impacts are expected through the upcoming weekend. For the rest of southern Nevada, northwest Arizona, and southeast California...Strong south to southwest winds can be expected today, with the peak gusts of 50 to 60 knots over the highest terrain of Inyo, Nye, Clark, and Lincoln counties. For tonight, west to northwest winds gusting 30 to 40 knots can be expected over the far southern Sierra and portions of San Bernardino, Clark, and Mohave counties. Rain and high elevation snow will slowly spread from the Sierra early this morning across much of Inyo County and the southern Great Basin by noon, then track southeast across the northern Mojave Desert this afternoon and tonight, exiting the region early Tuesday morning. The main threats with the precipitation will be low ceilings, poor visibility, and terrain obscuration. Skies will clear Tuesday morning, and then few or no weather impacts are expected through the upcoming weekend. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM...Salmen LONG TERM...TB3 AVIATION...Morgan For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
This gust was measured 6 mi NE of Mount Charleston.
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, October 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: 989170.