Moderate Cold Wave ● Active
Winter Weather Advisory issued October 30 at 9:48AM PDT until November 1 at 7:00AM PST by NWS Sacramento CA, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Snow expected for elevations above 7000 feet. Total snow
accumulations up to 10 inches, with up to 25 inches at the highest
peaks. Minor accumulations of up to 3 inches possible down to 6000
feet.
* WHERE...Northern Sierra above 7000 feet, including Highway 50 and
Interstate 80.
* WHEN...From 8 AM PDT Saturday to 7 AM PST Sunday.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Snow levels initially 7000 to 8000 feet
Saturday, lowering to 6000 to 7000 feet Saturday night into Sunday.
Heaviest snowfall expected Saturday evening into Sunday. Light
flurries possible down to 5000 feet on Saturday night into Sunday,
but no accumulations expected below 6000 feet.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-31T11:00:00-07:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 30, 2026 16:49 UTC) · we last heard from WMO Alert Hub (national weather services) 30 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Hypothermia and frostbite prevention, home heating safety, and surviving being stranded in a vehicle.
Open Severe Cold & Winter Storm Safety →Earlier cold wave events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.