A series of short waves moving through over a cold air mass brought heavy low elevation snow to parts of northern California.
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 MFR wrote it up.
A series of short waves moving through over a cold air mass brought heavy low elevation snow to parts of northern California.
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 Medford, OR wrote its last area forecast discussion before the first event at Mar 23, 7:54 AM PST, 45 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
A spotter at Tennant reported 8 inches of snow in 24 hours ending at 24/0839 PST. Another 4 inches of snow accumulated overnight, ending at 25/0729 PST. The total on the ground by that time was 16 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2018Every state in 2018This day in weather historyWarnings in California, March 2018
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: 737552.