A fast-moving area of low pressure brought snow to the Tahoe Basin and the Carson Range the 8th and 9th.
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The episode as NWS REV wrote it up.
A fast-moving area of low pressure brought snow to the Tahoe Basin and the Carson Range the 8th and 9th.
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 Reno, NV wrote its last area forecast discussion before the first event at Jan 8, 2:19 AM PST, 4 hours 41 minutes earlier.
Area Forecast Discussion National Weather Service Reno NV 219 AM PST Tue Jan 8 2019 .SYNOPSIS... Quiet weather will prevail most of today before the next storm impacts the Sierra tonight into Wednesday with mountain snow and very light rain for far western Nevada valleys. This storm will not be as potent as the system which moved through on Sunday but will still provide travel difficulties across northern Sierra passes. Latest trends are favoring less chances for rain and snow next weekend. && .SHORT TERM... Cloudy skies and increasing winds across the Sierra ridgetops today will be in place ahead of the next incoming storm which is expected tonight into Wednesday. This storm is not nearly as strong as our most recent storm but still will be capable of producing travel problems across the northern Sierra passes where 6-12" of snow could accumulate near the Sierra crest above 7,000' feet and higher elevations of northeast CA. This storm will have a pretty pronounced precipitation shadow so highest snow totals will exist right along the crest with a rapid drop off to the east. Less than 0.10" of rainfall is expected across western Nevada. Snow levels will begin around 7,000' and lower to right around lake level through Wednesday. A few inches of accumulation is possible at the lake. Snow totals in Mono County are generally looking in the 2-5" range west of Highway 395 with 4-8" possible right along the crest and more so in northern Mono into Alpine Counties. Wind gusts generally in the 40-45 mph range are expected early Wednesday across the Tahoe Basin with gusts reaching around 90 mph along the ridgetops. Hazardous boating conditions are expected on Tahoe, with some of the typical road travel impacts for high profile vehicles and turbulent conditions for aviation. However, compared to this past weekend, this will be a much less significant wind event as 700 mb winds only peak at 50-55 kt early Wednesday morning, then decrease during the day. Gusts of 30-40 mph are likely for most lower elevations across western Nevada. Fuentes .LONG TERM...Friday through early next week... The main changes were to lower pops significantly this weekend. The trend for late week and this weekend continue to point to drier conditions as energy moving into the west coast is showing increasing signs of splitting near or off the west coast and heading across the Dessert Southwest. The first system Friday- Saturday may miss us completely with the GFS/ECMWF dropping the southern piece of energy into southern CA-AZ-northern Baja with QPF signals staying well to our south. We have cut pops back to slight chance and mainly along the Sierra for this system. For the second system early next week, there are timing differences due to uncertainty in how far offshore the trough cuts off before moving inland. Again the track is south and would have the best potential of bringing mountain snow and valley rain showers to areas south of Highway 50. With timing differences ranging from Sunday to Tuesday, we have maintained a low chance of pops during the entire period for now, favoring areas south of Highway 50. Temperatures will remain a little above seasonal levels and winds do not look appear to be a factor in this pattern. So mixing and ventilation may be a bit suppressed with brief windows of improved conditions each afternoon. && .AVIATION... Freezing fog has formed this morning around KTRK as light winds and enough dry air above the boundary layer allowed for radiational cooling in the moist surface airmass. This fog is shallow and increasing winds should mix out these conditions by 16Z if not sooner. Winds aloft and at ridge level will increase during the day today and continue through Wednesday with peak wind gusts 80-85 kts late tonight into Wednesday morning. Surface winds will also increase especially tonight into Wednesday as gradients/mixing increase. Surface gusts will generally be 30-35 kts in the eastern Sierra and lower valleys along the Highway 395 corridor. So expect an uptick in turbulence. As far as precipitation, rain and high elevation snow will impact mainly the Sierra west of Highway 395 with periods of MVFR CIGS/VSBYS at KTRK and KTVL late tonight into Wednesday. Snow levels may drop enough Wednesday morning for a couple inches of slushy accumulations. For other TAF sites, precipitation is going to be much lighter with few restrictions on CIGS/VSBYS. Hohmann && .REV Watches/Warnings/Advisories... NV...Winter Weather Advisory from 1 AM to 9 PM PST Wednesday NVZ002. CA...Winter Weather Advisory from 1 AM to 9 PM PST Wednesday CAZ072. && For more information from the National Weather Service visit... http://weather.gov/reno
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
Twenty-four-hour snowfall amounts ranged from 3 inches at Diamond Peak Ski Area to 4 inches at Mount Rose Ski Area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2019Every state in 2019This day in weather historyWarnings in Nevada, January 2019
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: 805525.