Winter Weather in California, April 11, 2010

Name: Winter Weather in California, April 11, 2010
Start: 2010-04-11T14:00
End: 2010-04-11T23:00
Location: California

April 11, 2010 · NWS REV · 1 event in 1 county or zone

A storm originating in the Gulf of Alaska on the 9th dropped south to off the California coast on the 11th before moving into California and Nevada on the 12th.

Where it happened

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.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 1

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.

What happened

The episode as NWS REV wrote it up.

A storm originating in the Gulf of Alaska on the 9th dropped south to off the California coast on the 11th before moving into California and Nevada on the 12th.

What forecasters said that day

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 Apr 10, 2:15 PM PST, 23 hours 45 minutes earlier.

Area forecast discussion, Apr 10, 2:15 PM PST, 23 hours 45 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 winter weather. Local standard time, as filed.

Winter Weather, Mono

When: April 11, 2:00 PM PST to 11:00 PM PST
Where: Mono forecast zone
Reported by: SNOTEL
Coordinates: 37.939, -118.887 (the zone’s center; the record gives no point)

A general 8 to 13 inches of snow fell west of highway 395 near the Sierra crest and in the higher terrain east of highway 395 north of Bridgeport. The exceptions were at the June Lake and Mammoth Mountain Ski areas where 17 to 20 inches were reported. Along and east of highway 395 (except higher terrain north of Bridgeport), much less snowfall occurred with only 2 to 5 inches reported.

What these are

Winter Weather: Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in California in 2010 Every state in 2010 This day in weather history Warnings in California, April 2010

Sources

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 2026-10-01. Each event’s entry at NCEI: 226222.