Alert archive / Washington / Wind Advisories in 2018

Wind Advisory 1, NWS Spokane, WA

January 27, 201810 counties in Washington

NWS Spokane, WA issued this wind advisory at Jan 27, 2018, 10:38 AM PST for 10 counties in Washington. It took effect at Jan 27, 2018, 1:00 PM PST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jan 27, 2018, 10:38 AM PST (18:38 UTC)
In effect from
Jan 27, 2018, 1:00 PM PST
Expired
Jan 27, 2018, 7:00 PM PST
In force
6 hr
Issued by
NWS Spokane, WA

Counties Adams County, WA, Asotin County, WA, Chelan County, WA, Douglas County, WA, Garfield County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Spokane County, WA, Whitman County, WA

The radar

The Spokane radar (KOTX), 85 km from the middle of the area, began a volume at 18:39 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 12:00Z, 6.6 hours before the alert went out and 172 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 12:00Z on 2018-01-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2018-01-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

855 
WWUS76 KOTX 271838
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
1038 AM PST Sat Jan 27 2018

...WINDY IN LEE OF CASCADES AND SOUTHEAST WASHINGTON TODAY...

.There are two areas where windy conditions are expected to
develop this afternoon. Strong winds will be possible in the lee
northern Cascade Mountains. Damage to small tree branches with
power outages will be possible. Isolated roof damage may also 
occur in the Wenatchee Area and on the Waterville Plateau with the
strongest wind gusts. Windy conditions are also expect to develop
across portions of the Upper Columbia Basin and off of the 
Northeast Mountains into the Washington Palouse.

WAZ041-042-044-280300-
/O.NEW.KOTX.WI.Y.0001.180127T2100Z-180128T0300Z/
Wenatchee Area-East Slopes Northern Cascades-Waterville Plateau-
1038 AM PST Sat Jan 27 2018

...WIND ADVISORY IN EFFECT UNTIL 7 PM PST THIS EVENING...

The National Weather Service in Spokane has issued a Wind
Advisory...which is in effect until 7 PM PST this evening.

* Winds...West 20 to 30 mph with gusts up 55 mph.

* Timing...Winds will increase after noon and peak in the late
  afternoon and early evening.

* Impacts...Winds will be capable of breaking tree branches with
  power outages expected. Localized stronger wind gusts may also
  result in shingle damage to roof tops.

* Locations...Wenatchee, Chelan, Entiat, Cashmere, Plain, 
  Leavenworth, Stehekin, Waterville, and Mansfield.

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.

&&

$$

WAZ032-033-035-280300-
/O.NEW.KOTX.WI.Y.0001.180127T2100Z-180128T0300Z/
Lower Garfield and Asotin Counties-Washington Palouse-
Upper Columbia Basin-
1038 AM PST Sat Jan 27 2018

...WIND ADVISORY IN EFFECT UNTIL 7 PM PST THIS EVENING...

The National Weather Service in Spokane has issued a Wind
Advisory...which is in effect until 7 PM PST this evening.

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

* Timing...Winds will increase in the afternoon and then wane in
  the evening.

* Impacts...Light weight objects will likely blow around if not
  secured. Difficult travel is expected for high profile vehicles
  along State Route 26 and along Highway 12 over Alpowa Summit.

* Locations...Pomeroy, Pullman, Colfax, Rosalia, La Crosse, 
  Oakesdale, Tekoa, Ritzville, and Odessa.

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.

&&

$$
1 follow-up statement
967 
WWUS76 KOTX 280252
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
652 PM PST Sat Jan 27 2018



WAZ041-042-044-280400-
/O.EXP.KOTX.WI.Y.0001.000000T0000Z-180128T0300Z/
Wenatchee Area-East Slopes Northern Cascades-Waterville Plateau-
652 PM PST Sat Jan 27 2018

...WIND ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING...

Winds have decreased this evening and damaging winds are not
expected for the remainder of the night.

$$

WAZ032-033-035-280400-
/O.EXP.KOTX.WI.Y.0001.000000T0000Z-180128T0300Z/
Lower Garfield and Asotin Counties-Washington Palouse-
Upper Columbia Basin-
652 PM PST Sat Jan 27 2018

...WIND ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING...

Winds have decreased this evening and damaging winds are not
expected for the remainder of the night.


$$

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.