The next system on the 6th and 7th Tuesday featured light shower chances across portions of the eastern Sierra and increased east to northeast winds. The next system arrived late Monday as a backdoor cold front that slid south through the area.
Every event with a place to put it; 1 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 REV wrote it up.
The next system on the 6th and 7th Tuesday featured light shower chances across portions of the eastern Sierra and increased east to northeast winds. The next system arrived late Monday as a backdoor cold front that slid south through the area. East to northeast winds behind the front caused upslope flow east of the Sierra crests into the 7th with a 20-30% chance for some light snow showers in the Tahoe Basin area southward into Mono and Mineral counties. The northeast flow from this system was the primary impact with wind gusts upwards of 80+ mph across Sierra ridgetops that brought impacts to backcountry recreation and aviation interests across the region.
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 7, 1:28 PM PST, 6 hours 7 minutes earlier.
Area Forecast Discussion National Weather Service Reno NV 128 PM PST Tue Jan 7 2025 .SYNOPSIS... * Gusty east winds continue tonight across Sierra ridgetops. * An overall quiet pattern continues into next week aside from a cool down on Sunday as a dry front moves through the region. && .DISCUSSION... Gusty east winds will continue overnight along Sierra ridgetops with gusts exceeding 100 mph at times along exposed ridgelines. Expect continued choppy conditions across Lake Tahoe into Wednesday morning before winds lighten through the day. Overall, steady east winds will prevail through Friday with another increase in ridge winds on Thursday with gusts of around 60 mph. Overall, high pressure will continue a dry pattern with strengthening inversions and steadily warming temperatures into the low/mid 50s by Friday. Temperatures will then cool about 10 degrees on Saturday as we receive a glancing blow from a shortwave trough passage. Most of the limited precipitation associated with this wave will remain across northeastern Nevada with gusty southwest ridgetop winds expected. Conditions remain quiet into early next week as high pressure remains parked across the eastern Pacific with seasonable temperatures prevailing. Fuentes && .AVIATION... Areas of mountain wave turbulence along and west of the Sierra crest will remain in place through Wednesday morning as E/NE FL100 winds of 40-50 continue. Otherwise expect VFR conditions for Sierra and western Nevada terminals with light east breezes persisting. Fuentes && .REV Watches/Warnings/Advisories... NV...Lake Wind Advisory until 4 AM PST Wednesday NVZ002. CA...Lake Wind Advisory until 4 AM PST Wednesday CAZ072. &&
Preliminary Local Storm Report
National Weather Service Reno NV
252 PM PST Tue Jan 7 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 AM Snow 1 NNW Incline Village 39.27N 119.97W
01/07/2025 M1.0 Inch Washoe NV Trained Spotter
Trained spotter reported 1 inch of new snow
overnight.
0800 AM Snow Diamond Peak Ski Base 39.25N 119.92W
01/07/2025 E1.0 Inch Washoe NV Public
Diamond Peak reported 1 inch of new snow
overnight.
0800 AM Snow Mt. Rose Ski Base 39.32N 119.89W
01/07/2025 E2.0 Inch Washoe NV Public
Mt. Rose reported 2 inches of new snow
overnight.
0730 AM Snow Dagget Pass 38.98N 119.89W
01/07/2025 M1.5 Inch Douglas NV Public
Social media report of 1.5 inches of new
snow overnight.
0800 AM Snow 1 SSW Northstar Ski Bas 39.26N 120.13W
01/07/2025 E1.0 Inch Placer CA Public
Northstar reported 1 inch of new snow
overnight.
0800 AM Snow June Mountain Ski Base 37.76N 119.09W
01/07/2025 E2.0 Inch Mono CA Public
June Mountain reported 2 inches of new snow
overnight.
0800 AM Snow Mammoth Mountain Ski Ba 37.65N 119.04W
01/07/2025 E1.0 Inch Mono CA Public
Mammoth Mountain reported 1 inch of new snow
overnight.
0800 AM Snow Heavenly Ski Base 38.93N 119.93W
01/07/2025 E4.0 Inch El Dorado CA Public
Heavenly reported 4 inches of new snow
overnight.
&&The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Mesonet station (MTH03) located 1.7 mi SE of Mammoth Mountain Ski Summit reported peak wind gusts of 135 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2025Every state in 2025This day in weather historyWarnings in California, January 2025
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: 1233255.