Alert archive / Washington / Wind Advisories in 2017

Wind Advisory 3, NWS Spokane, WA

April 30, 20174 counties in Washington

NWS Spokane, WA issued this wind advisory at Apr 30, 2017, 3:27 AM PDT for 4 counties in Washington. It took effect at Apr 30, 2017, 9:00 AM PDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Apr 30, 2017, 3:27 AM PDT (10:27 UTC)
In effect from
Apr 30, 2017, 9:00 AM PDT
Expired
Apr 30, 2017, 7:00 PM PDT
In force
10 hr
Issued by
NWS Spokane, WA

Counties Adams County, WA, Chelan County, WA, Douglas County, WA, Grant County, WA

The radar

The Spokane radar (KOTX), 149 km from the middle of the area, began a volume at 10:29 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, 10.5 hours before the alert went out and 240 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 2017-04-30Temperature 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 00:00Z on 2017-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.19395878Sfc1 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
2054 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

032 
WWUS76 KOTX 301027
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
327 AM PDT Sun Apr 30 2017

...GUSTY WINDS TODAY OVER PORTIONS NORTH-CENTRAL WASHINGTON...

.Winds are expected to increase through the morning and peak in
the afternoon behind a cold front passage. Breaking mountain 
waves in the lee of the Cascade Mountains will also be possible, 
which will be capable of mixing down stronger wind gusts into the
Wenatchee Area and on the Waterville Plateau. The Moses Lake Area
is expected to see gusty winds that funnel out of the Kittitas 
Valley.

WAZ034-041-044-301900-
/O.NEW.KOTX.WI.Y.0003.170430T1600Z-170501T0200Z/
Moses Lake Area-Wenatchee Area-Waterville Plateau-
327 AM PDT Sun Apr 30 2017

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 7 PM PDT
THIS EVENING...

The National Weather Service in Spokane has issued a Wind
Advisory...which is in effect from 9 AM this morning to 7 PM PDT
this evening.

* Winds...West 20 to 30 mph with gusts up to 45 mph.

* Timing...Increasing through the morning and peaking in the 
  afternoon.

* Impacts...Strong cross winds will make travel difficult for high
  profile vehicles along Interstate 90 between George and Vantage.
  Small tree branches may break and light weight objects may
  become airborne.

* Locations...George, Royal City, Quincy, Wenatchee, Chelan, 
  Entiat, Cashmere, 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.

&&

$$
2 follow-up statements
994 
WWUS76 KOTX 301833
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
1133 AM PDT Sun Apr 30 2017

...GUSTY WINDS TODAY OVER PORTIONS NORTH-CENTRAL WASHINGTON...

.Winds are expected to increase through the morning and peak in
the afternoon behind a cold front passage. Breaking mountain
waves in the lee of the Cascade Mountains will also be possible,
which will be capable of mixing down stronger wind gusts into the
Wenatchee Area and on the Waterville Plateau. The Moses Lake Area
is expected to see gusty winds that funnel out of the Kittitas
Valley.

WAZ034-041-044-010200-
/O.CON.KOTX.WI.Y.0003.000000T0000Z-170501T0200Z/
Moses Lake Area-Wenatchee Area-Waterville Plateau-
Including the cities of Moses Lake, Ephrata, Othello, Quincy, 
Wenatchee, Chelan, Entiat, Cashmere, Waterville, and Mansfield
1133 AM PDT Sun Apr 30 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PDT THIS EVENING...

* Winds...West 20 to 30 mph with gusts up to 45 mph.

* Timing...Increasing through the morning and peaking in the 
  afternoon. 

* Impacts...Strong cross winds will make travel difficult for 
  high profile vehicles along Interstate 90 between George and 
  Vantage. Small tree branches may break and light weight 
  objects may become airborne. 

* Locations...George, Royal City, Quincy, Wenatchee, Chelan, 
  Entiat, Cashmere, 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.

&&

$$
923 
WWUS76 KOTX 010158
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
658 PM PDT Sun Apr 30 2017



WAZ034-041-044-010300-
/O.EXP.KOTX.WI.Y.0003.000000T0000Z-170501T0200Z/
Moses Lake Area-Wenatchee Area-Waterville Plateau-
658 PM PDT Sun Apr 30 2017

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

Northwest winds of 20 to 28 mph with gusts as high as 43 mph 
at Wenatchee, the Waterville Plateau, and Moses lake area 
near 6 pm PDT continue to decrease. Wind will eventually lower to
15 mph tonight, therefore the wind advisory will be allowed to 
expire at 7 pm PDT this evening.


$$

Nearby

Wind Advisories in Washington, 2017Every wind advisory in 2017

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.