Washington, 2022

Wildfire and Astronomical Low Tide in Washington, August 4 to 6, 2022

August 4 to 6, 2022 · NWS OTX · 2 events in 1 county or zone

Fire started from farm equipment working and field and quickly spread in the dry grasses by 25 MPH winds.

Where it happened

Every event with a place to put it; 2 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

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The toll

Deaths
0
Injuries
0
Property damage
$1.9 million
Crop damage
None recorded
Events
2

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 OTX wrote it up.

Fire started from farm equipment working and field and quickly spread in the dry grasses by 25 MPH winds.

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 Spokane, WA wrote its last area forecast discussion before the first event at Aug 4, 9:43 AM PST, 1 hour 2 minutes earlier.

Area forecast discussion, Aug 4, 9:43 AM PST, 1 hour 2 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
1043 AM PDT Thu Aug 4 2022

.SYNOPSIS...
Today and Friday will be cooler, with afternoon temperatures in
the 80s following the passage of a cold front. The front will
produce gusty westerly winds today. By Sunday, the majority of
the Inland Northwest will experience highs in the 90s. Monday and
Tuesday will be quite hot with upper 90s and 100s returning to
much of the region. A slight chance of showers and thunderstorms
arrives for the mountains Wednesday, with breezy conditions across
the region.

&&

.DISCUSSION...

Thursday: A cold front will pass through the region today
bringing gusty winds and cooler temperatures. This will be a dry
cold front with a few minor exceptions. Gusty winds will be the
most impactful weather for today creating challenging conditions
for fire fighters battling ongoing fires and any new starts. Today
is another day to vigilant and cautious around dry grasses to
avoid new fire starts.

As of 2AM, the front has crossed into Northwestern Washington and
will continue to sweep across Eastern Washington and North Idaho
Thursday morning. Cold air advection coupled with a 13 mb pressure
gradient from Portland to Kalispell will deliver a blustery day
with sustained winds between 15-25 mph and gusts 30-35 mph. Wind
direction will generally be from the west and southwest. Locally
stronger wind gusts will impact the higher peaks across North
Idaho and the Cascades as the upper-level jet carves into the
region. NAEFS/ENS are indicating that the 850-700mb winds are
indeed in the 95-99th percentile with projected speeds at
850mb/700mb of 30kts/40kts respectively. Forecast models do
indicate a small stable layer below 700 mb which should keep these
higher wind speeds from surfacing in the lower elevations but the
potential will exist on the ridgetops. The air mass will not be
as dry or warm as in the last few days but humidity levels will
remain low and close to 20% suggesting fires will still be capable
of spreading swiftly. Afternoon highs will only warm into the
upper 70s to 80s something that has been observed in the region in
nearly two weeks.

We are getting weak echoes along the front which is coming
onshore with a narrow axis of moisture. Rain has been reported at
a few sites over Western WA and in southern BC. Best chance for
any rain across my forecast area will be along the Cascade Crest
and potential for a spotty shower along the Canadian Border. The
atmosphere will destabilize under the 500 mb cold pool Thursday
afternoon however a dry slot behind the cold front will just about
eliminate any chance for precipitation and probably clouds for
that matter for much of E WA and N ID. Cumulus buildups are
expected in southern BC with a few afternoon showers and
thunderstorms. This activity has about a 20% chance to skim the
international border around Danville, Laurier, and Northport.

Winds will start to shift to the northwest this evening and
remain gusty through our Cascade river valleys, over the Western
Basin, and down the Okanogan Valley but speeds will decrease
closer to 10-20 mph with gusts near 25 mph. The northerly
gradients will continue into Friday morning keeping a steady north
wind from Oroville to Ephrata. The remainder of the region will
experience winds dropping near 10 mph or less overnight.

With more fires in the region and ongoing fires in southern BC,
smoke is becoming more of an issue day by day. Smoke transport
today will largely be west to east from the fire source with
decent ventilation except immediately downstream of the fire.
Nonetheless, we are seeing a few air quality sensors downstream of
fires starting to report moderate to locally unhealthy air.

Friday and Saturday: The cool upper-level trough will linger over
the region Friday and slowly depart on Saturday. It will be a
pleasant end to the work-week and into the weekend with seasonal
temperatures and lighter winds. We will maintain light north to
northwesterly pressure gradients. This will result in locally
breezy conditions down the Okanogan Valley each morning, otherwise
winds around 10 mph or less for most areas. Smoke from southern
BC will continue to drift into the region. Smoke from fires near
Vantage and Cheney will also drift to the south/southeast but
under very light steering flow. Stronger overnight inversions
could trap smoke closer to the surface resulting in localized poor
air quality. Afternoon temperatures start off in the 80s on
Saturday and warm into the 80s and lower 90s for Saturday.
Overnight lows will dip into the 40s and 50s. No this is not a
typo, many of our northern valleys could become quite chilly with
overnight lows in the lower 40s. If you are heading to the
campground, be sure to plan accordingly. /sb

Sunday to Wednesday: The pattern looks hot and largely dry,
thought some shower and thunderstorm chances do arrive around
midweek. The period starts with a ridge building in, while a
closed low sits off the California coast. The southerly flow
increases through the week as that low edges northward. Ensembles
and mean 500mb height cluster forecast maps show that trend, but
there is disagreement over precisely where that low tracks. That
is not a surprising thing as closed lows can often be hard for
computer models to handle. However the southerly flow will still
lead to that increase in temperatures, with the the potential for
90s and 100 degree readings. The hottest days continue to look
like Monday and Tuesday. I increased highs a couple degrees over
the previous forecast for Tuesday, which puts the Spokane Airport
(GEG) at 100 on Tuesday and a few degrees warmer downtown. The NBM
probabilities show about a 50% chance of reaching that century
mark on Tuesday at GEG, which is a trend upward. Ensembles show
high probabilities of over 90 degrees for most of the area, at
70-100%, and about a 30-80% chance of over 100 degrees with the
highest confidence over the deeper Columbia Basin. This may
require another round of heat advisories or excessive heat
warnings for early next week.

That southerly flow will also bring some instability and
disturbances in, if not that closed low. So that will bring the
chance for showers and t-storms to the mountains zones on
Wednesday; but depending on how the models evolve that could
expand. This is accompanied by a relative downward trend in
temperatures over the region, but it still remains hot with above
normal temperatures. Winds also become breezy, first around
Tuesday afternoon and more notably Wednesday, with forecast speeds
right now around 10-15 mph and gusts near 20-25 mph. The
combination of potential thunderstorms that may not produce much
precipitation and breezy conditions could be a concern for the
fire weather community. Although confidence in t-storm activity is
not high, any potential lightning is of concern this time of
year. /Cote'

&&

.AVIATION...
18Z TAFs: Wildfires near Vantage in central Washington and near
Silver Lake in southwest Spokane county will produce smoke plumes
that may be the flight path of Moses lake, Spokane metro, and
Coeur D Alene airports today. Winds have begun to pick up across
much of the region with a passing cold front. Expect sustained
winds to be in the 15-25 mph range and gusts to 35 mph for most
terminals. Potentially stronger gusts up to 40 mph will be
possible across the Cascade gaps near KEAT. Winds will begin to
decrease after 01-03Z this evening. Winds will turn to the
north/northwest this evening with gusty conditions lingering
around Wenatchee, Chelan, Winthrop, and Omak well into the evening
while decreasing for Idaho and eastern third of WA. Smoke could
remain an issue into Friday morning with stronger inversions
starting to trap smoke closer to the surface.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        81  50  82  53  86  55 /   0   0   0   0   0   0
Coeur d'Alene  81  49  81  50  86  52 /   0   0   0   0   0   0
Pullman        78  46  78  49  83  50 /   0   0   0   0   0   0
Lewiston       89  57  87  58  91  59 /   0   0   0   0   0   0
Colville       81  42  82  45  86  47 /   0   0   0   0   0   0
Sandpoint      78  45  79  48  83  48 /   0   0   0   0   0   0
Kellogg        76  53  78  56  82  58 /   0   0   0   0   0  10
Moses Lake     83  51  84  54  90  56 /   0   0   0   0   0   0
Wenatchee      79  54  84  60  91  64 /   0   0   0   0   0   0
Omak           85  51  86  55  91  57 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.

&&

The radar

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

Open the radar archive at this moment

Event by event

1 astronomical low tide, 1 wildfire. Local standard time, as filed.

Astronomical Low Tide, Upper Columbia Basin

When
August 4, 10:45 AM PST to August 6, 8:00 AM PST
Where
Upper Columbia Basin forecast zone
Property damage
$935,000
Reported by
Fire Department/Rescue
Coordinates
47.610, -119.173 (the zone’s center; the record gives no point)

Farm equipment working a field sparked a wildfire that was quickly spread through grass fields by winds. It burned from August 4-6. It burned 2500 acres. Six homes and eight outbuildings were destroyed.

Wildfire, Upper Columbia Basin

When
August 4, 10:45 AM PST to August 6, 8:00 AM PST
Where
Upper Columbia Basin forecast zone
Property damage
$935,000
Reported by
Fire Department/Rescue
Coordinates
47.610, -119.173 (the zone’s center; the record gives no point)

Farm equipment working a field sparked a wildfire that was quickly spread through grass fields by winds. It burned from August 4-6. It burned 2500 acres. Six homes and eight outbuildings were destroyed.

What these are

Astronomical Low Tide
Unusually low water from tides and offshore wind that caused impacts.
Wildfire
A fire burning in wildland vegetation, with its acreage and damage where known.

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

The same day elsewhere

More

Every storm in Washington in 2022Every state in 2022This day in weather historyWarnings in Washington, August 2022

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 2026-09-24. Each event’s entry at NCEI: 1054925, 1057737.