Washington, 2022

Wildfire in Washington, August 25 to 31, 2022

August 25 to 31, 2022 · NWS OTX · 1 event in 1 county or zone

Lightning started the Alligator Wildfire in North Ferry County on August 25.

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.

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The toll

Deaths
0
Injuries
0
Property damage
$300,000
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 OTX wrote it up.

Lightning started the Alligator Wildfire in North Ferry County on August 25.

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 25, 1:25 AM PST, 6 hours 35 minutes earlier.

Area forecast discussion, Aug 25, 1:25 AM PST, 6 hours 35 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
225 AM PDT Thu Aug 25 2022

.SYNOPSIS...
Scattered showers and thunderstorms will impact the Inland
Northwest through Thursday evening. While some areas may not see
a drop of rain, other areas may see strong storms with heavy
downpours, hail, gusty winds and lightning. Drier and locally
breezy weather arrives Friday through the weekend. Temperatures
will remain warm into Friday, cooling off over the weekend, and
then warming up again next week.

&&

.DISCUSSION...
Today through Friday Night: A closed low over the Spokane area
early this morning will lift northeast into N Idaho this
morning...and then into southern Alberta in the evening. Elevated
instability ahead of the low will continue to trigger scattered
showers with embedded thunderstorms into the early morning before
this activity begins to push out of the area. Then attention
shifts to afternoon convection. Plenty of lingering moisture with
PWAT's near 150% of normal, afternoon heating, and steep lapse
rates will lead to surface based convection in the form of
scattered showers and thunderstorms. The best focus will be over
the northern mountains into the ID Panhandle. The northwest flow
on the back side of the low will likely allow some of this
activity to come off the higher terrain into the Upper Columbia
Basin and Spokane/Coeur d'Alene areas by late this afternoon into
the evening. The instability isn't quite as great as yesterday
with HREF showing CAPE values of 500-800 J/KG, but the slow
movement will lead to locally heavy rain. This convection will die
down after sunset with the loss of daytime heating, as well as a
short wave ridge moving over the region overnight into Friday
morning. The short wave ridge will lead to a drier day on Friday,
although still enough residual moisture and instability over far
NE WA/ID Panhandle for a threat of a few showers or thunderstorm
mainly in the mountains. A weather system dropping down over
Vancouver Island Friday night will help tighten the cross-Cascade
pressure gradient leading to breezy winds in the lee of the
Cascades. Relative humidity looks to remain above critical
thresholds but the winds will result in the potential for
increased fire spread with any new or existing fires. JW

Saturday and Sunday:
Temperatures briefly return to late August averages near 80
degrees this weekend as an upper level low over SW OR moves SE
into our area. 24 percent of the ensemble (primarily GEFS members)
has the trough axis many hundred miles east in central ID. If
that were the case, our high temperatures may not exceed 70 in
some spots Saturday. There may be some showers in the higher
terrain of the cascades, but PWATs and forcing with this trough
are meager. Winds will be breezy through the morning and early
afternoon, but decreasing in the late afternoon/early evening.
Sunday will also remain on the cooler side, especially if the low
lingers in our region. Uncertainty rises with high temperatures
Sunday since it highly depends on the position of the low. 87
percent of the ensemble (primarily GFS and Euro members) develop a
very deep trough SE of Alaska which positively amplifies the
downstream height field.

Monday through Thursday:
Ridging keeps our temperatures approximately 8 to 15 degrees above normal
through Wednesday. High temperatures would range from the mid 80s
to near 100 degrees. We will remain dry and sunny during this
period. Thursday becomes more uncertain with an upper level low
looming off the coast, but will likely be cooler as height falls
occur. /db

&&

.AVIATION...
12Z TAFs: As the best elevated instability shifts east of the
region this morning attention will turn to the redevelopment of
showers and thunderstorms this afternoon. The bulk of the activity
is expected over the northern mountains into the ID Panhandle but
the northwest flow may allow some storms to come off the mountains
into the Spokane/Coeur d'Alene areas. VFR conditions are expected
over the region except for some visibility restrictions under
heavier showers and thunderstorms. This activity will diminish
after sunset. JW

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        87  61  90  59  79  53 /  20  20  10   0  10   0
Coeur d'Alene  84  58  89  58  78  51 /  30  20  10   0  10   0
Pullman        85  55  87  53  76  46 /  10  20  10   0   0   0
Lewiston       93  66  95  64  84  58 /  10  10   0   0   0   0
Colville       88  51  90  49  81  45 /  30  20  10  10  10   0
Sandpoint      80  55  85  55  78  48 /  60  30  10  10  10   0
Kellogg        81  62  84  59  75  53 /  60  30  20   0  10   0
Moses Lake     94  61  95  57  83  51 /  10  10   0   0   0   0
Wenatchee      94  68  92  64  81  58 /  20  10   0   0   0   0
Omak           95  63  96  61  86  56 /  20  10   0   0  10   0

&&

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

In the hours before

Local storm report, Aug 25, 7:52 AM PST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
852 AM PDT THU AUG 25 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0525 PM     TSTM WND DMG     2 N CEDONIA             48.18N 118.17W
08/24/2022                   STEVENS            WA   PUBLIC

            DOWNED TREES AT A RESIDENCE NEAR ROUTE 25
            AND BISSELL ROAD. TIME ESTIMATED FROM RADAR.

&&

CMS

The radar

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

Open the radar archive at this moment

Event by event

1 wildfire. Local standard time, as filed.

Wildfire, Okanogan Highlands

When
August 25, 8:00 AM PST to August 31, 11:59 PM PST
Where
Okanogan Highlands forecast zone
Property damage
$300,000
Reported by
Park/Forest Service
Coordinates
48.510, -119.128 (the zone’s center; the record gives no point)

Lightning started the Alligator Wildfire on August 25. It was contained on September 29. It burned through timber in rugged terrain. It was 800 acres in size.

What these are

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: 1055032.