Blowing Dust Advisory 3, NWS Spokane, WA

546 
WWUS76 KOTX 190602
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
1102 PM PDT Sun Apr 18 2021

IDZ001-WAZ043-044-190715-
/O.EXP.KOTX.WI.Y.0009.000000T0000Z-210419T0600Z/
Northern Panhandle-Okanogan Valley-Waterville Plateau-
Including the cities of Nespelem, Eastport, Sandpoint, Brewster,
Waterville, Omak, Bonners Ferry, Bridgeport, Rathdrum, Mansfield,
Oroville, Okanogan, and Priest River
1102 PM PDT Sun Apr 18 2021

...WIND ADVISORY HAS EXPIRED...

The strong winds in far northern Idaho and the Okanogan Valley have 
begun to weaken late this evening, and the trend should continue. 
While sustained winds will remain elevated overnight and some gusts 
to around 30 mph will be possible, the strong gusty wind threat has 
diminished.

$$

WAZ033>035-190900-
/O.CON.KOTX.DU.Y.0003.000000T0000Z-210419T0900Z/
/O.CON.KOTX.WI.Y.0009.000000T0000Z-210419T0900Z/
Washington Palouse-Moses Lake Area-Upper Columbia Basin-
Including the cities of Colfax, Rosalia, Coulee City, Quincy,
Grand Coulee, Tekoa, Wilbur, La Crosse, Ephrata, Moses Lake,
Ritzville, Uniontown, Othello, Pullman, Oakesdale, and Odessa
1102 PM PDT Sun Apr 18 2021

...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT MONDAY...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT MONDAY...

* WHAT...For the Blowing Dust Advisory, visibility between 
  one-quarter and one mile in blowing dust. For the Wind Advisory, 
  northeast winds 20 to 30 mph with gusts up to 45 mph.

* WHERE...Colfax, Rosalia, Coulee City, Quincy, Grand Coulee, Tekoa, 
  Wilbur, La Crosse, Ephrata, Moses Lake, Ritzville, Uniontown, 
  Othello, Pullman, Oakesdale, and Odessa.

* WHEN...Until 2 AM PDT Monday.

* IMPACTS...Areas of blowing dust is expected across portions of the 
  Columbia Basin which could bring visibilities down to 2 miles or 
  less at times.
  Winds will produce choppy lake conditions which could lead to a 
  dangerous situation on local lakes.
  Gusty winds will blow around unsecured objects. A few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

IDZ002-WAZ036-190900-
/O.CON.KOTX.WI.Y.0009.000000T0000Z-210419T0900Z/
Coeur d'Alene Area-Spokane Area-
Including the cities of Rockford, Spokane, Worley, Coeur d'Alene,
Cheney, Hayden, Post Falls, and Davenport
1102 PM PDT Sun Apr 18 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT MONDAY...

* WHAT...Northeast winds 15 to 30 mph with gusts up to 45 mph.

* WHERE...Rockford, Spokane, Worley, Coeur d'Alene, Cheney, Hayden, 
  Post Falls, and Davenport.

* WHEN...Until 2 AM PDT Monday.

* IMPACTS...Areas of blowing dust is expected across portions of the 
  Columbia Basin which could bring visibilities down to 2 miles or 
  less at times.
  Winds will produce choppy lake conditions which could lead to a 
  dangerous situation on local lakes.
  Gusty winds will blow around unsecured objects. A few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

OTX

520 
WWUS76 KOTX 190901
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
201 AM PDT Mon Apr 19 2021

WAZ033>035-191015-
/O.EXP.KOTX.DU.Y.0003.000000T0000Z-210419T0900Z/
/O.EXP.KOTX.WI.Y.0009.000000T0000Z-210419T0900Z/
Washington Palouse-Moses Lake Area-Upper Columbia Basin-
Including the cities of Colfax, Rosalia, Coulee City, Quincy,
Grand Coulee, Tekoa, Wilbur, La Crosse, Ephrata, Moses Lake,
Ritzville, Uniontown, Othello, Pullman, Oakesdale, and Odessa
201 AM PDT Mon Apr 19 2021

...BLOWING DUST ADVISORY HAS EXPIRED...
...WIND ADVISORY HAS EXPIRED...

The peak wind gusts associated with the strong cold front have began 
to weaken. Winds will continue to gust around 30 mph through the 
overnight and further weaken by sunrise Monday. The blowing dust 
threat has also come to an end. Any places seeing reduced 
visibilities will continue to improve overnight.

$$

IDZ002-WAZ036-191015-
/O.EXP.KOTX.WI.Y.0009.000000T0000Z-210419T0900Z/
Coeur d'Alene Area-Spokane Area-
Including the cities of Rockford, Spokane, Worley, Coeur d'Alene,
Cheney, Hayden, Post Falls, and Davenport
201 AM PDT Mon Apr 19 2021

...WIND ADVISORY HAS EXPIRED...

The peak wind gusts associated with the strong cold front have began 
to weaken. Winds will continue to gust around 30 mph through the 
overnight and further weaken by sunrise Monday.

$$

OTX

Area Forecast Discussion
National Weather Service Spokane WA
331 PM PDT Sun Apr 18 2021

.SYNOPSIS...
A robust cold front will push into and across the Inland
Northwest this afternoon and into tonight. This front will be
accompanied by a shift to strong north to northeast winds, as
well as a chance for showers and perhaps a few thunderstorms.
Much cooler temperatures will move in behind the front for Monday.
Dry and warming temperatures return through at least Wednesday.
Then additional precipitation chances arrive Thursday into next
weekend.

&&

.DISCUSSION...
A cold front is just now pushing into far NE Washington and N
Idaho this afternoon. A shift and strengthening of winds will
likely be the main impactful weather, and Wind Advisories for
portions of the region remain on track, along with the potential
for blowing dust. In addition to the wind, the chance for showers
and isolated embedded thunderstorms will continue through the
evening, though mainly limited to far eastern WA and northern ID.
The front passes through rather quickly, and by daylight Monday,
the main lingering factor will be the much cooler temperatures in
place. /KD

Monday night through Sunday: The weather pattern remains dry and
mild through early this week, but turns more active Thursday into
next Sunday. Monday night to Wednesday the area will be in a
split north to northwest flow. A ridge builds in with the primary
storm track keeping systems outside of our region. Temperatures
warm into the 60s Tuesday and the 70s Wednesday, with clear to
mostly clear skies. Tuesday afternoon does bring some breeziness,
especially over the open Columbia Basin. Gusts of 15-20 mph will
be possible.

Late Wednesday night a system starts to drop down from Canada,
with increasing clouds. Going into Thursday precipitation chances
expand over northeast WA and north ID in the morning, then expand
out across much of the eastern third of WA and ID. The deeper
basin and all but the crest of the Cascades is more likely to
remain dry. The afternoon instability and shortwave passing will
combine to bring some thunderstorm threat over the eastern third
of WA and ID as well. The overall potential for precipitation
declines through southeast WA and ID late Thursday evening into
Friday, leaving only limited chances over the ID Panhandle
Mountains, Camas Prairie, higher Blues and immediate Cascade
crest. This system will also come with another increase in winds
Thursday, especially down the Okanogan Valley into western basin.
Gusts of 15-25 mph are forecast at this point, but this will be
fine-tuned as more data comes in. Winds are forecast to remain
breezy Friday, though maybe just slightly lower speeds.

Going into next weekend the pattern starts to shift, with a deeper
low digging in over the northeast Pacific. This shifts the flow to
more of a west to southwest direction. This increases the
moisture and overall threat of precipitation area-wide, though the
best threat will be near the Cascades and over southeast WA into
the ID Panhandle. There is some instability but overall models are
not showing a significant thunderstorm PoPs, yet it would not
surprise me to see that threat increase and some be added to the
forecast for next weekend. Once again look for some low-grade
breezy conditions during the afternoon hours.

From Thursday onward there is less confidence in the temperature
forecast, as there is quite a spread in the numbers the various
models are showing (with around a 10-15 degree difference). At
this time the forecast indicates temperatures slightly above
normal, but if there is more cloud cover or precipitation values
could be closer to normal. /Cote'

&&

.AVIATION...
00Z TAFS: An approaching cold front will increase winds for the
next several hours as they shift northeasterly. Blowing dust or
haze is possible over the basin with reduced visibilities
(GEG/MWH). There will also be a threat of showers and
thunderstorms near COE,GEG,SFF but the risk for TS is slight. Any
thunderstorms could produce higher gusts. Gusty winds will
continue into the overnight hours decreasing in speeds after 09Z,
with the potential for showers ending after 09Z as well. Mostly
clear skies and much lighter winds by the daylight hours Monday.
/KD

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        34  59  34  63  36  70 /  20   0   0   0   0   0
Coeur d'Alene  33  57  31  62  33  67 /  40   0   0   0   0   0
Pullman        34  57  32  61  33  66 /  10   0   0   0   0   0
Lewiston       43  64  37  68  38  72 /  10   0   0   0   0   0
Colville       33  63  32  67  34  72 /  30   0   0   0   0   0
Sandpoint      35  56  31  60  32  65 /  60   0   0   0   0   0
Kellogg        33  53  33  57  34  63 /  70   0   0   0   0   0
Moses Lake     42  66  34  71  37  75 /  10   0   0   0   0   0
Wenatchee      44  64  41  68  43  74 /  20   0   0   0   0   0
Omak           41  66  38  71  40  75 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 6 PM this evening to 2 AM PDT Monday for
     Coeur d'Alene Area.

     Wind Advisory until 11 PM PDT this evening for Northern
     Panhandle.

WA...Wind Advisory until 11 PM PDT this evening for Okanogan Valley-
     Waterville Plateau.

     Wind Advisory from 6 PM this evening to 2 AM PDT Monday for
     Moses Lake Area-Spokane Area-Upper Columbia Basin-
     Washington Palouse.

&&

Hazardous Weather Outlook
National Weather Service Spokane WA
507 AM PDT Sun Apr 18 2021

IDZ026-027-WAZ031-032-038-041-042-191215-
Lewiston Area-Lewis and Southern Nez Perce Counties-
Northeast Blue Mountains-Lower Garfield and Asotin Counties-
Okanogan Highlands-Wenatchee Area-East Slopes Northern Cascades-
507 AM PDT Sun Apr 18 2021

This Hazardous Weather Outlook is for portions of North Central
Idaho...North Central Washington and Southeast Washington.

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

No hazardous weather is expected at this time.

IDZ001>004-WAZ033>037-043-044-191215-
Northern Panhandle-Coeur d'Alene Area-Idaho Palouse-
Central Panhandle Mountains-Washington Palouse-Moses Lake Area-
Upper Columbia Basin-Spokane Area-Northeast Mountains-
Okanogan Valley-Waterville Plateau-
507 AM PDT Sun Apr 18 2021

This Hazardous Weather Outlook is for portions of North Idaho...
Central Washington...East Central Washington...North Central
Washington...Northeast Washington and Southeast Washington.

.DAY ONE...TODAY AND TONIGHT

A robust cold front will move from northeast to southwest this
afternoon and evening bringing gusty northeast winds to the area.
Choppy waters and hazards to area lakes are expected, as well as
localized areas of blowing dust in the Columbia Basin. Wind gusts
of 30-45 mph will be possible.

Other hazards include potential for power outages and damage to
trees, especially in northern Idaho, and difficulty driving in the
Basin due to blowing dust. A slight chance for thunderstorms is
possible with the frontal passage for northeast Washington and
northern and central Idaho.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

No hazardous weather is expected at this time.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
739 PM PDT SUN APR 18 2021

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

0653 PM     NON-TSTM WND GST 6 E ANATONE             46.12N 117.01W
04/18/2021  M18 MPH          ASOTIN             WA   MESONET

            MESONET STATION FW0143 ANATONE.

0728 PM     NON-TSTM WND GST 2 W ATHOL               47.94N 116.74W
04/18/2021  M53 MPH          KOOTENAI           ID   MESONET

            MESONET STATION FW6935 ATHOL.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
740 PM PDT SUN APR 18 2021

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

0732 PM     NON-TSTM WND GST 3 W DOVER               48.25N 116.66W
04/18/2021  M51 MPH          BONNER             ID   MESONET

            MESONET STATION FW4025 SAGLE.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
803 PM PDT SUN APR 18 2021

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

0658 PM     NON-TSTM WND GST 1 WNW HAYDEN            47.77N 116.82W
04/18/2021  M43 MPH          KOOTENAI           ID   AWOS

            AWOS STATION KCOE COEUR D ALENE AIRPORT.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
822 PM PDT SUN APR 18 2021

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

0630 PM     NON-TSTM WND DMG 1 WSW BLANCHARD         48.01N 117.00W
04/18/2021                   BONNER             ID   TRAINED SPOTTER

            19 INCH DIAMETER TREE SNAPPED AND 30 INCH
            DIAMETER TREE BLOWN DOWN IN EST. 50 MPH
            WINDS. TIME EST.

0733 PM     NON-TSTM WND DMG 2 SSW GREEN ACRES       47.64N 117.17W
04/18/2021                   SPOKANE            WA   PUBLIC

            SIGNIFICANT WIND EVENT IN GREENACRES. WINDS
            EST. IN EXCESS OF 60 MPH. TREE DAMAGE AND
            FENCE DAMAGE.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
833 PM PDT SUN APR 18 2021

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

0833 PM     NON-TSTM WND DMG HAYDEN                  47.76N 116.79W
04/18/2021                   KOOTENAI           ID   FIRE DEPT/RESCUE

            NORTHERN LAKES FIRE DISTRICT RESPONDING TO
            MULTIPLE FIRES FROM DOWN POWER LINES AND
            SMOLDERING SLASH PILES THAT REKINDLE FROM
            THE WIND. THEY ARE ALSO RESPONDING TO
            MULTIPLE POWER LINES DOWN RATHDRUM, HAYDEN,
            AND GARWOOD AREA.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
834 PM PDT SUN APR 18 2021

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

0745 PM     NON-TSTM WND GST 3 NE POST FALLS         47.74N 116.90W
04/18/2021  M41 MPH          KOOTENAI           ID   MESONET

            MESONET STATION DW9063 POST FALLS.

0742 PM     NON-TSTM WND GST 2 NW LIBERTY LAKE       47.67N 117.11W
04/18/2021  M40 MPH          SPOKANE            WA   MESONET

            MESONET STATION TLIBE 1.7 NW LIBERTY LAKE
            (WA DOT).

0726 PM     NON-TSTM WND GST DEER PARK               47.97N 117.43W
04/18/2021  M38 MPH          SPOKANE            WA   ASOS

            ASOS STATION KDEW DEER PARK AIRPORT.

0730 PM     NON-TSTM WND GST 2 WNW MATTAWA           46.75N 119.94W
04/18/2021  M38 MPH          GRANT              WA   MESONET

            MESONET STATION HBVLY 2.3 W MATTAWA (HMMN).

0749 PM     NON-TSTM WND GST 2 W MILLWOOD            47.68N 117.32W
04/18/2021  M38 MPH          SPOKANE            WA   ASOS

            ASOS STATION KSFF SPOKANE FELTS FIELD.

&&