Fraser River outflow brought high wind to parts of the northwest interior.
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 SEW wrote it up.
Fraser River outflow brought high wind to parts of the northwest interior.
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 Seattle, WA wrote its last area forecast discussion before the first event at Feb 3, 4:46 PM PST, 3 hours 8 minutes earlier.
Area Forecast Discussion
National Weather Service Seattle WA
446 PM PST Sun Feb 3 2019
.SYNOPSIS...Cold air will continue to spill out of British
Columbia through Monday while an upper level low moves southward
offshore. This combination will give most of the area snow
showers through at least Monday morning. Dry but cool weather is
expected Tuesday and Wednesday. Another round of cold and
unsettled weather is expected Thursday through next weekend.
&&
.SHORT TERM /TONIGHT THROUGH WEDNESDAY/...Just a little busy here
at NWS Seattle this afternoon.
Doppler radar shows broad area of convergence from King county
into Whatcom county. Satellite imagery shows upper level low over
the northern tip of Vancouver Island with shower bands rotating
around the low off the coast. Doppler radar has the first of these
bands just offshore at 00z/4 pm. Temperatures at 4 pm were in the
30s.
Here is the current thinking on the snow forecast. Convergence
area, which did not form because of the cold air moving out of
British Columbia but because of the westerlies through the Strait
earlier today combined with southerly up the Puget Sound and the
cold air aloft, will diminish this evening with the flow through
the Strait going easterly. There still will be an area of
convergence as the cold air spills out of British Columbia but
this area will not cover near as much area as the current
convergence. Have a winter weather advisory for another inch of
snow in Snohomish, Skagit and Whatcom counties this evening with
the convergence. Next up the shower band currently offshore moving
inland over the southern portion of the area tonight.
Temperatures are currently just above freezing but dew points are
below freezing so once the precipitation begins temperatures will
fall and the precipitation type will change from rain to snow
this evening. Precipitation amounts to not look very heavy 0.20
inches or less overnight into early Monday morning. Have issued a
snow advisory for the central Coast, Lower Chehalis valley and
Southwest Interior for up to two inches of snow through early
Monday morning. Snow advisory also up for the Eastern Strait of
Juan de Fuca and the Admiralty Inlet area with some upslope flow
into the northern slopes of the Olympics enhancing the
precipitation rates later tonight into Monday morning.
So where does this leave the metro area??? Once the convergence
lifts north this evening there will be a little break in the
precipitation over the central Puget Sound area. Temperatures in
the metro area are currently in the lower to mid 30s.
Precipitation rates are light and the temperatures are marginal.
While there will be snow in the air for the evening hours with
the light precipitation rates only going to forecast up to an
inch overnight into early Monday morning.
Monday morning, most of the models are still developing a
deformation zone somewhere over the central and southern portion
of the interior Monday morning. As previously mentioned it is hard
to pin down the exact location and intensity of this feature with
much lead time. A couple of model trends are a little worrisome
about the development of this feature, one the upper level low
southward movement is slower than the models have predicted which
means two the cold air is still somewhat bottled up to the north.
Less low level convergence will result in lower precipitation
amounts if the deformation zone forms. For this forecast package
will have a possible addition up to an inch of snow accumulation
over the central interior including the Puget Sound region in the
4 am to 10 am window. Outside of the deformation zone showers
will still be rotating around the low with the best chances for
accumulating snow over the southern portion of the area. With
another inch or so of accumulation possible the snow advisory for
the Southwest Interior will continue until 1 pm. Upslope flow into
the northern slopes of the Olympics will also continue through
the morning hours will another 1 to 2 inches of snow possible
along the Eastern Strait of Juan de Fuca keeping the winter
weather advisory going there until 1 pm as well.
Monday afternoon, upper level low moving slowly south offshore
pulling the moisture with it south of the area. With the low
moving a little slower than the model forecasts have extended the
chance for snow showers from about Skagit county southward into
the early afternoon hours. By late afternoon the snow shower
chances will be confined to the southeast portion of the area.
Highs on Monday will be cool, only in the 30s with some places
near the Canadian border remaining in the 20s.
Drying trend Monday night as the low continues to move south with
a sunny but cool day expected on Tuesday. With the clearing skies
the cooler locations will fall into the teens Monday night. Highs
on Tuesday will be in the 30s and lower 40s.
Here is the current thinking on the wind. High wind warning still
in effect for San Juan as well as Western Whatcom and Skagit
counties beginning this evening and continuing into Monday night.
Cold air a little behind schedule but the winds at Ferndale are up
to 20 mph gusting to 40 mph at 4 pm. Winds will continue to
increase over the Northwest interior overnight as the Bellingham
to Williams Lake gradient becoming more negative as the much
colder air over British Columbia cools even more overnight ( the
temperature at Williams Lake at 4 pm was 11 below zero ). The
forecast of northeast winds 25 to 45 mph with gusts as high as 55
mph through Monday night remains intact.
.LONG TERM /THURSDAY THROUGH SUNDAY/...Little change in the
extended forecast this afternoon. Models continuing with the idea
of another cool upper level low moving down close to the area
toward the end of the week with another round of low snow levels.
Timing of the feature still inconsistent among the models so will
continue with the broad brush idea of chance pops through the
period with below normal temperatures. Felton
&&
.AVIATION...An upper low southwest of Vancouver Island will drop
southward over the offshore waters tonight and into the
Oregon waters on Monday. Southwesterly flow aloft will become
southeasterly Monday morning. At low levels, strong
northeast to north flow will gradually spread southward across the
region through early Monday as low pressure passes
by to the west and southwest and high pressure remains over
the interior of British Columbia. The air mass will be moist and
somewhat stable through Monday morning. Low MVFR and areas of IFR
ceilings in snow showers are expected through Monday. VFR
ceilings could develop across the far north portion of the area
early Monday as dry, colder air filters into the region. Ceilings
will improve to VFR over the Puget Sound area Monday afternoon.
KSEA...MVFR with periods of IFR persisting tonight into Monday AM.
Snow showers developing...with accumulations of 1-2 inches at
the terminal most likely occurring between 05Z and 15Z. Some
improvement in ceilings expected Monday afternoon as drier air
filters into the area. Surface winds shifting to northerly 01Z-03Z
and rising to 10 to 15 gusting 20 to 25 knots toward 12Z Monday. 27
&&
.MARINE...Flow will turn strongly offshore late today as a surface
low moves south over the offshore waters and a surface ridge
strengthens over the interior of British Columbia. Fraser outflow
will continue through Monday night. Gale force wind over the
northern inland waters this evening will spread to the Strait of
Juan de Fuca and adjacent coastal waters late tonight. Small craft
advisory strength winds will occur across the remainder of the
inland waters. Winds will ease on Tuesday as the outflow weakens. 27
.HYDROLOGY...River flooding not expected in the next 7 days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Weather Advisory until 1 PM PST Monday for Lower Chehalis
Valley Area-Southwest Interior.
High Wind Warning from 7 PM this evening to 4 AM PST Tuesday for
San Juan County-Western Skagit County-Western Whatcom
County.
Winter Weather Advisory until 10 PM PST this evening for Everett
and Vicinity-Western Skagit County-Western Whatcom County.
Winter Weather Advisory until 6 AM PST Monday for Central Coast.
Winter Weather Advisory from 10 PM this evening to 1 PM PST
Monday for Admiralty Inlet Area-Eastern Strait of Juan de
Fuca-Western Strait of Juan De Fuca.
PZ...Small Craft Advisory until 4 PM PST Monday for Admiralty Inlet-
Coastal Waters From James Island To Point Grenville Out 10
Nm-Coastal Waters From Point Grenville To Cape Shoalwater
Out 10 Nm.
Gale Warning until 4 PM PST Monday for Central U.S. Waters
Strait Of Juan De Fuca-Coastal Waters From Cape Flattery To
James Island 10 To 60 Nm-Coastal Waters From Cape Flattery
To James Island Out 10 Nm-Coastal Waters From James Island
To Point Grenville 10 To 60 Nm-Coastal Waters From Point
Grenville To Cape Shoalwater 10 To 60 Nm-East Entrance U.S.
Waters Strait Of Juan De Fuca-West Entrance U.S. Waters
Strait Of Juan De Fuca.
Gale Warning until 4 AM PST Tuesday for Northern Inland Waters
Including The San Juan Islands.
Small Craft Advisory from 10 PM this evening to 4 PM PST Monday
for Puget Sound and Hood Canal.
&&
www.weather.gov/seattlePRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
521 PM PST SUN FEB 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0513 PM SNOW REDMOND 47.67N 122.11W
02/03/2019 M1.5 INCH KING WA PUBLIC
AT REDMOND RIDGE EAST. TEMP 31.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
534 PM PST SUN FEB 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0528 PM SNOW MUKILTEO 47.93N 122.31W
02/03/2019 M4.0 INCH SNOHOMISH WA PUBLIC
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
538 PM PST SUN FEB 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0532 PM SNOW SNOQUALMIE 47.53N 121.83W
02/03/2019 E2.5 INCH KING WA PUBLIC
SNOWFALL ESTIMATED BETWEEN 2 TO 3 INCHES.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
557 PM PST SUN FEB 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0525 PM SNOW EDMONDS 47.81N 122.38W
02/03/2019 E2.5 INCH SNOHOMISH WA PUBLIC
ESTIMATED BETWEEN 2-3 INCHES.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
635 PM PST SUN FEB 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM SNOW LAKE STEVENS 48.02N 122.07W
02/03/2019 E3.0 INCH SNOHOMISH WA TRAINED SPOTTER
STILL SNOWING, TEMP 30.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
639 PM PST SUN FEB 3 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0638 PM SNOW ESPERANCE 47.78N 122.36W
02/03/2019 M3.2 INCH SNOHOMISH WA TRAINED SPOTTER
STILL SNOWING.
&&The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
KBLI had wind of NE40g58 mph 2/4 0353-0500 PST. Sandy Point Shores had wind of 44g64 peak 75 mph 2/3 1954 - 4/0344 PST.
Lopez Island had wind NE47g58 mph 2/3 2215 - 4/1005 PST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2019Every state in 2019This day in weather historyWarnings in Washington, February 2019
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: 799156, 799157.