California, 2016

Heavy Snow and Damaging Winds in California, January 17 to 20, 2016

January 17 to 20, 2016 · NWS STO · 9 events in 6 counties and zones

A wet storm brought thunderstorms with heavy rain creating large puddles on roads and minor urban flooding, especially over portions of the northern Sacramento Valley and northeast foothills. Wind 40-50 mph brought down trees causing some power outages.

Where it happened

Every event with a place to put it. 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

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The toll

Deaths
0
Injuries
0
Property damage
$100,000
Crop damage
None recorded
Events
9

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 STO wrote it up.

A wet storm brought thunderstorms with heavy rain creating large puddles on roads and minor urban flooding, especially over portions of the northern Sacramento Valley and northeast foothills. Wind 40-50 mph brought down trees causing some power outages. There was 4-8 of snow above 6000 feet, up to 10 inches of snow over the highest peaks. Snow brought a period of chain controls to I80 and Highway 5.

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 Sacramento, CA wrote its last area forecast discussion before the first event at Jan 17, 4:34 AM PST, 2 hours 26 minutes earlier.

Area forecast discussion, Jan 17, 4:34 AM PST, 2 hours 26 minutes before
Area Forecast Discussion
National Weather Service Sacramento CA
434 AM PST SUN JAN 17 2016

.SYNOPSIS...
The next system bringing wind, rain and snow into interior
northern California today and Monday. Some small scale and/or burn
scar flooding could occur this afternoon and tonight. Expect
periods of precipitation throughout the coming week.

.SHORT TERM DISCUSSION (Today through Wednesday)...
Impressive moisture plume on satellite just off the west coast.
Behind this system is another vorticity max near 150W that should
impact the area on Tuesday. The initial precipitation will be warm
air advection rain with snow generally above 6500 ft. Chester is
still at 32F, and although temperature will climb a bit in the
warm air advection, snowfall may occur within pockets of cold air
at lower elevations over the northern Sierra. At any rate we
issued a winter storm warning above 6500 ft for 6-12 inches over
the Sierra, and even higher amounts over Lassen Peak. Winds will
increase later this morning in response to the tightening surface
pressure gradient ahead of the front, so issued a wind advisory
for much of the Sacramento Valley and adjacent northeast foothills
(eastward of Redding and Red Bluff). Heaviest rain band will move
into the north valley by late morning and sag south to the
southern valley by evening. We also added the Butte and King burn
areas to the flask flood/debris flow watches later today and
tonight. A watch just means that excessive rain could lead to
debris flows and/or localized flash flooding, but not imminent.

As mentioned above, the next system arrives Tuesday with not
really much of a break Monday night. We will see more rain/snow,
but not quite as much as today and Monday. Ridging builds in
briefly on Wednesday with a few more sun rays and slightly warmer
temperatures.       JClapp

.EXTENDED DISCUSSION (Thursday THROUGH Sunday)
Unsettled weather pattern will continue late this week and next
weekend as several storms move into NorCal from the Pacific.
Forecast timing will likely fluctuate over the next several days
under this progressive pattern, but confidence is high in both a
late-week and weekend storm over the region. Snow levels will
generally remain around 5000-7000 feet before lowering next
weekend. Temperatures will be close to average for mid-January.
&&

.AVIATION...
Next Pacific frontal system moves through NorCal during the next
24 hours with widespread MVFR and local IFR conditions developing
over the Central Valley and widespread IFR conditions over higher
terrain. Snow levels 065-075. Southerly wind gusts 25-35 kts
developing in the Central Valley with southwesterly gusts over 40
kts over higher terrain.
&&

.STO Watches/Warnings/Advisories...
Winter Storm Warning from 2 PM this afternoon to 10 AM PST
Monday for West Slope Northern Sierra Nevada.

Wind Advisory from 10 AM this morning to 10 PM PST this evening
for Central Sacramento Valley-Northeast Foothills/Sacramento
Valley-Northern Sacramento Valley-Southern Sacramento Valley.

Flash Flood Watch from 1 PM PST this afternoon through late
tonight for Clear Lake/Southern Lake County-Motherlode-Sierra
Mountains south of Interstate 80.

&&

The radar

The Reno radar (KRGX), 98 km away, was scanning. The volume nearest the first event began at 16:00 UTC.

Open the radar archive at this moment

Event by event

5 heavy rain, 3 thunderstorm wind, 1 heavy snow. Local standard time, as filed.

Heavy Snow, Burney Basin/Eastern Shasta County

When
January 17, 7:00 AM PST to January 18, 7:00 AM PST
Where
Burney Basin/Eastern Shasta County forecast zone
Reported by
Public

A storm total of 15 inches of snow was reported at Boreal Ski Resort, 16 inches at Sugarbowl Ski Resort.

Heavy Rain, Nevada

When
January 18, 8:00 AM PST to January 19, 6:45 PM PST
Where
Nevada County, 3.74 mi W of Soda Spgs
Reported by
Trained Spotter
Coordinates
39.320, -120.450

Precipitation total since morning of 1/18 was 3 inches of slushy snow followed rain. There was a total of 1.85 inches of rain in Kingvale.

Heavy Rain, Shasta

When
January 18, 7:00 PM PST to January 19, 8:00 PM PST
Where
Shasta County, Whiskeytown to 0.14 mi NNE of Redding
Reported by
Official NWS Observations
Coordinates
40.580, -122.600

There was heavy rain between Whiskeytown and Redding, 0.60 to 0.87 in about an hour, causing water on roads with slippery conditions to bring traffic slowdowns.

Heavy Rain, Sacramento

When
January 18, 11:59 PM PST to January 19, 7:00 PM PST
Where
Sacramento County, 1.28 mi ENE of (Mhr)mather Afb
Reported by
Trained Spotter
Coordinates
38.580, -121.280

There was a total of 0.87 inches of a rain since midnight at Rancho Cordova.

Heavy Rain, Solano

When
January 18, 11:59 PM PST to January 19, 8:00 PM PST
Where
Solano County, 2.34 mi NNE of Vacaville Jct
Reported by
Trained Spotter
Coordinates
38.330, -121.950

There were 2.00 inches of rainfall measured at Vacaville.

Heavy Rain, Shasta

When
January 19, 6:00 AM PST to January 20, 6:00 AM PST
Where
Shasta County, 1.71 mi WNW of Sims
Reported by
Trained Spotter
Coordinates
41.060, -122.360

A spotter in Sims measured 1.55 inches of rain over 24 hours.

Thunderstorm Wind, Sacramento

When
January 19, 9:30 AM PST to 12:00 PM PST
Where
Sacramento County, 2.3 mi SW of Del Paso Hgts
Measured
43 kt (49 mph) estimated gust
Property damage
$40,000
Reported by
Broadcast Media
Coordinates
38.576, -121.499

A large tree fell blocking the courtyard of the Capitol Towers apartments in downtown Sacramento.

Thunderstorm Wind, Sacramento

When
January 19, 9:30 AM PST to 12:00 PM PST
Where
Sacramento County, 1.45 mi W of Boyd
Measured
43 kt (49 mph) estimated gust
Property damage
$10,000
Reported by
Broadcast Media
Coordinates
38.579, -121.357

Part of a tree fell onto Saverien Drive, blocking the right turn lane.

Thunderstorm Wind, Tuolumne

When
January 19, 12:00 PM PST to 3:00 PM PST
Where
Tuolumne County, 2.99 mi SW of Stanislaus to 2.79 mi SW of Stanislaus
Measured
43 kt (49 mph) estimated gust
Property damage
$50,000
Reported by
Park/Forest Service
Coordinates
37.704, -120.414

The main Lake Don Pedro Marina (LDPM) sustained damage to its structure that led to the evacuation of its employees until the weather system died down. The facility was closed for repairs.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.
Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

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

The same day elsewhere

More

Every storm in California in 2016Every state in 2016This day in weather historyWarnings in California, January 2016

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: 617448, 617357, 617355, 617360, 617364, 617366, 617417, 617418, 617416.