Alert archive / Idaho / Wind Advisories in 2015

Wind Advisory 4, NWS Spokane, WA

February 27, 2015Bonner County, Boundary County, Kootenai County, Idaho; Douglas County, Okanogan County, Washington

NWS Spokane, WA issued this wind advisory at Feb 27, 2015, 2:35 PM PST for Bonner County, Boundary County, Kootenai County, Idaho; Douglas County, Okanogan County, Washington. It took effect at Feb 27, 2015, 4:00 PM PST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Feb 27, 2015, 2:35 PM PST (22:35 UTC)
In effect from
Feb 27, 2015, 4:00 PM PST
Expired
Feb 28, 2015, 5:27 AM PST
In force
13 hr
Issued by
NWS Spokane, WA

Counties Bonner County, ID, Boundary County, ID, Kootenai County, ID, Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 60 km from the middle of the area, began a volume at 22:35 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, 10.6 hours before the alert went out and 121 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 2015-02-27Temperature 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 2015-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 square meters per square second.193958Sfc1 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
834 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

413 
WWUS76 KOTX 272235
NPWOTX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
235 PM PST FRI FEB 27 2015

...VERY WINDY CONDITIONS TONIGHT AND SATURDAY MORNING...

.DRY AND COLD CANADIAN AIR WILL FILTER THROUGH THE NORTH TO SOUTH
VALLEYS TONIGHT AND SATURDAY MORNING. THIS MOVEMENT WILL PRODUCE
VERY WINDY CONDITIONS THROUGH THE OKANOGAN VALLEY AND THE HIGHWAY
95 CORRIDOR FROM BONNERS FERRY TO COEUR D'ALENE. WIND CHILL
TEMPERATURES WILL BE VERY RAW ON SATURDAY MORNING.

WAZ043-280745-
/O.NEW.KOTX.WI.Y.0004.150228T0000Z-150228T1800Z/
OKANOGAN VALLEY-
235 PM PST FRI FEB 27 2015

...WIND ADVISORY IN EFFECT UNTIL 10 AM PST SATURDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST SATURDAY.

* WINDS...NORTH 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...WINDY CONDITIONS WILL PEAK LATE TONIGHT AND SLOWLY
  DECREASE SATURDAY MORNING.

* IMPACTS...SCATTERED POWER OUTAGES ARE POSSIBLE AS TREE BRANCHES
  BREAK INTO POWER LINES. UNACHORED HIGH SURFACE AREA OBJECTS MAY
  BE SHIFTED OR TOPPLED. IN ADDITION WIND CHILL TEMPERATURES
  SATURDAY MORNING WILL APPROACH SINGLE DIGITS ABOVE ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

IDZ001-002-280745-
/O.NEW.KOTX.WI.Y.0004.150228T0000Z-150228T1800Z/
NORTHERN PANHANDLE-COEUR D'ALENE AREA-
235 PM PST FRI FEB 27 2015

...WIND ADVISORY IN EFFECT UNTIL 10 AM PST SATURDAY FOR THE
PURCELL TRENCH...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WIND
ADVISORY FOR THE PURCELL TRENCH...WHICH IS IN EFFECT UNTIL 10 AM
PST SATURDAY.

* WINDS...NORTHEAST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...WINDS WILL INCREASE THROUGH THE EVENING AND PEAK LATE
  TONIGHT. WINDS WILL SLOWLY DECREASE SATURDAY MORNING.

* IMPACTS...SCATTERED POWER OUTAGES ARE POSSIBLE AS TREE BRANCHES
  BREAK INTO POWER LINES. UNACHORED HIGH SURFACE AREA OBJECTS MAY
  BE SHIFTED OR TOPPLED. IN ADDITION WIND CHILL TEMPERATURES
  SATURDAY MORNING WILL DROP TO THE LOW SINGLE DIGITS ABOVE ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
2 follow-up statements
399 
WWUS76 KOTX 280553
NPWOTX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
953 PM PST FRI FEB 27 2015

...VERY WINDY CONDITIONS TONIGHT AND SATURDAY MORNING...

.DRY AND COLD CANADIAN AIR WILL FILTER THROUGH THE NORTH TO SOUTH
VALLEYS TONIGHT AND SATURDAY MORNING. THIS MOVEMENT WILL PRODUCE
VERY WINDY CONDITIONS THROUGH THE OKANOGAN VALLEY AND THE HIGHWAY
95 CORRIDOR FROM BONNERS FERRY TO COEUR D'ALENE. WIND CHILL
TEMPERATURES WILL BE VERY RAW ON SATURDAY MORNING.

WAZ043-281400-
/O.CON.KOTX.WI.Y.0004.000000T0000Z-150228T1800Z/
OKANOGAN VALLEY-
953 PM PST FRI FEB 27 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY...

* WINDS...NORTH 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...WINDY CONDITIONS WILL PEAK OVERNIGHT AND SLOWLY
  DECREASE MID SATURDAY MORNING.

* IMPACTS...SCATTERED POWER OUTAGES ARE POSSIBLE AS TREE 
  BRANCHES BREAK INTO POWER LINES. UNACHORED HIGH SURFACE AREA 
  OBJECTS MAY BE SHIFTED OR TOPPLED. IN ADDITION WIND CHILL 
  TEMPERATURES SATURDAY MORNING WILL APPROACH SINGLE DIGITS 
  ABOVE ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

IDZ001-002-281400-
/O.CON.KOTX.WI.Y.0004.000000T0000Z-150228T1800Z/
NORTHERN PANHANDLE-COEUR D'ALENE AREA-
953 PM PST FRI FEB 27 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY FOR
THE PURCELL TRENCH...

* WINDS...NORTHEAST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...WINDS WILL INCREASE THROUGH THE OVERNIGHT HOURS AND
  PEAK BY EARLY MORNING. WINDS WILL SLOWLY DECREASE LATE SATURDAY
  MORNING.

* IMPACTS...SCATTERED POWER OUTAGES ARE POSSIBLE AS TREE 
  BRANCHES BREAK INTO POWER LINES. UNACHORED HIGH SURFACE AREA 
  OBJECTS MAY BE SHIFTED OR TOPPLED. IN ADDITION WIND CHILL 
  TEMPERATURES SATURDAY MORNING WILL DROP TO THE LOW SINGLE 
  DIGITS ABOVE ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
387 
WWUS76 KOTX 281327
NPWOTX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
527 AM PST SAT FEB 28 2015


IDZ001-002-WAZ043-281430-
/O.CAN.KOTX.WI.Y.0004.000000T0000Z-150228T1800Z/
NORTHERN PANHANDLE-COEUR D'ALENE AREA-OKANOGAN VALLEY-
527 AM PST SAT FEB 28 2015

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WIND
ADVISORY.

BREEZY WINDS WILL CONTINUE ACROSS THE INLAND NORTHWEST THIS
MORNING...BUT WILL REMAIN BELOW ADVISORY CRITERIA. AS SUCH THE
WIND ADVISORY WILL BE CANCELLED. WINDS ARE EXPECTED TO DECREASE
THROUGH THE AFTERNOON. 

$$

Nearby

Wind Advisories in Idaho, 2015Wind Advisories in Washington, 2015Every wind advisory in 2015

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.