Alert archive / Washington / Wind Advisories in 2018

Wind Advisory 5, NWS Spokane, WA

October 2, 2018Douglas County, Okanogan County, Washington

NWS Spokane, WA issued this wind advisory at Oct 2, 2018, 5:32 PM PDT for Douglas County, Okanogan County, Washington. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Oct 2, 2018, 5:32 PM PDT (00:32 UTC)
Expired
Oct 2, 2018, 9:00 PM PDT
In force
3 hr
Issued by
NWS Spokane, WA

Counties Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 164 km from the middle of the area, began a volume at 00:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 0.5 hours before the alert went out and 252 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 00:00Z on 2018-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2018-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
54 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1911 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

469 
WWUS76 KOTX 030032
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
532 PM PDT Tue Oct 2 2018

...GUSTY WINDS TO BRING AREAS OF BLOWING DUST TO THE COLUMBIA
BASIN THROUGH EARLY EVENING...

.The passage of a strong cold front will keep windy conditions
across the Inland NW this afternoon and evening. Due to the dry
conditions across much of the Columbia Basin, areas of blowing
dust are likely, leading to reduced visibilities and degraded air
quality. Windy conditions may lead to localized power outages in
the Okanogan Valley.

WAZ043-030400-
/O.NEW.KOTX.WI.Y.0005.181003T0032Z-181003T0400Z/
Okanogan Valley-
532 PM PDT Tue Oct 2 2018

...WIND ADVISORY IN EFFECT UNTIL 9 PM PDT THIS EVENING...

The National Weather Service in Spokane has issued a Wind
Advisory...which is in effect until 9 PM PDT this evening.

* Winds...North 20 to 35 mph with gusts up to 50 mph. Localized
  gusts to 60 mph possible.

* Timing...Windy conditions will continue down the Okanogan Valley
  through early evening.

* Impacts...Windy conditions will make travel difficult for high
  profile vehicles.  Localized power outages are possible.

* Locations...Omak, Okanogan, Brewster, Bridgeport, Oroville, 
  and Nespelem.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

WAZ033>036-044-030400-
/O.CON.KOTX.DU.Y.0001.000000T0000Z-181003T0400Z/
Washington Palouse-Moses Lake Area-Upper Columbia Basin-
Spokane Area-Waterville Plateau-
532 PM PDT Tue Oct 2 2018

...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* Visibilities...Areas of 3 to 6 miles with local visibility
  exposed spots down to 2 miles or less.

* Winds...West 15 to 25 mph with gusts up to 45 mph.

* Timing...Gusty winds will peak early evening. Winds will taper 
  off overnight.

* Impacts...Reduced visibilities especially near recently worked 
  fields and degraded air quality are possible. This may effect 
  travel across I-90 from Vantage to Sprague, on Highway 395 
  from Ritzville to Tri-Cities, and Highway 2 from Waterville to 
  Reardan.

* Locations...Waterville, Mansfield, Colfax, La Crosse, 
  Ritzville, Grand Coulee, Odessa, Wilbur, Coulee City, Moses 
  Lake, Ephrata, Othello, Quincy, Cheney, and Davenport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blowing Dust Advisory means that areas of blowing dust will
restrict visibilities. Travelers are urged to use caution.

&&

$$
1 follow-up statement
849 
WWUS76 KOTX 030400
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
900 PM PDT Tue Oct 2 2018



WAZ033>036-044-030500-
/O.EXP.KOTX.DU.Y.0001.000000T0000Z-181003T0400Z/
Washington Palouse-Moses Lake Area-Upper Columbia Basin-
Spokane Area-Waterville Plateau-
900 PM PDT Tue Oct 2 2018

...BLOWING DUST ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING...

Patchy blowing dust will remain possible this evening but
significant visibility restrictions are not expected. Thus the
blowing dust advisory will be allowed to expire.

$$

WAZ043-030500-
/O.EXP.KOTX.WI.Y.0005.000000T0000Z-181003T0400Z/
Okanogan Valley-
900 PM PDT Tue Oct 2 2018

...WIND ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING...

Winds are expected to decrease in the Okanogan Valley through
tonight. While localized windy conditions are expected around
Oroville the remainder of the valley will be breezy with gusts up
to 35 mph this evening.


$$

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 2, 6:10 PM PDTSpecial Weather StatementOTXPend Oreille50 min

Nearby

Wind Advisories in Washington, 2018Every wind advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.