Alert archive / Idaho / Wind Advisories in 2019

Wind Advisory 5, NWS Spokane, WA

September 27, 2019Adams County, Grant County, Washington; Bonner County, Boundary County, Kootenai County, Idaho

NWS Spokane, WA issued this wind advisory at Sep 27, 2019, 2:55 AM PDT for Adams County, Grant County, Washington; Bonner County, Boundary County, Kootenai County, Idaho. It took effect at Sep 28, 2019, 4:00 AM PDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Sep 27, 2019, 2:55 AM PDT (09:55 UTC)
In effect from
Sep 28, 2019, 4:00 AM PDT
Expired
Sep 29, 2019, 11:01 AM PDT
In force
31 hr
Issued by
NWS Spokane, WA

Counties Bonner County, ID, Boundary County, ID, Kootenai County, ID, Adams County, WA, Grant County, WA

The radar

The Spokane radar (KOTX), 13 km from the middle of the area, began a volume at 09:57 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, 9.9 hours before the alert went out and 87 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 2019-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2019-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
92 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
2169 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

570 
WWUS76 KOTX 270955
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
255 AM PDT Fri Sep 27 2019

IDZ001-002-272300-
/O.NEW.KOTX.WI.Y.0005.190928T1100Z-190929T1300Z/
Northern Panhandle-Coeur d'Alene Area-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, Eastport, Coeur d'Alene, Post Falls, Hayden, 
and Worley
255 AM PDT Fri Sep 27 2019

...WIND ADVISORY IN EFFECT FROM 4 AM SATURDAY TO 6 AM PDT
SUNDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...The Highway 95 corridor from the Canadian border south
  to Elder Road near Lake Coeur d'Alene. The Rathdrum Prairie,
  Highway 2 from Newport to Sandpoint, and the Priest Lake area. 

* WHEN...From 4 AM Saturday to 6 AM PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
7 follow-up statements
513 
WWUS76 KOTX 272234
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
334 PM PDT Fri Sep 27 2019

IDZ001-002-281145-
/O.CON.KOTX.WI.Y.0005.190928T1100Z-190929T1300Z/
Northern Panhandle-Coeur d'Alene Area-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, Eastport, Coeur d'Alene, Post Falls, Hayden, 
and Worley
334 PM PDT Fri Sep 27 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM SATURDAY TO 6 AM PDT
SUNDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Most of the north Idaho Panhandle including the the
  Highway 95 corridor from the Canadian border south to Coeur
  d'Alene. This will also impact the Highway 2 corridor from
  Oldtown to Sandpoint.

* WHEN...From 4 AM Saturday to 6 AM PDT Sunday. The strongest 
  winds are expected Saturday afternoon and Saturday night. 

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs, especially those that become covered with heavy wet snow
  could be blown down resulting temporary road closures and power
  outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
080 
WWUS76 KOTX 280344
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
844 PM PDT Fri Sep 27 2019

IDZ001-002-281545-
/O.CON.KOTX.WI.Y.0005.190928T1100Z-190929T1300Z/
Northern Panhandle-Coeur d'Alene Area-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, Eastport, Coeur d'Alene, Post Falls, Hayden, 
and Worley
844 PM PDT Fri Sep 27 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM SATURDAY TO 6 AM PDT
SUNDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Most of the north Idaho Panhandle including the the 
  Highway 95 corridor from the Canadian border south to Coeur 
  d'Alene. This will also impact the Highway 2 corridor from 
  Oldtown to Sandpoint.

* WHEN...From 4 AM Saturday to 6 AM PDT Sunday. The strongest 
  winds are expected Saturday afternoon and Saturday night.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs, especially those that become covered with heavy 
  wet snow could be blown down resulting temporary road closures 
  and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
978 
WWUS76 KOTX 281009
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
309 AM PDT Sat Sep 28 2019

WAZ034-282330-
/O.EXB.KOTX.WI.Y.0005.190929T0600Z-190929T1900Z/
Moses Lake Area-
Including the cities of Moses Lake, Ephrata, Othello, and Quincy
309 AM PDT Sat Sep 28 2019

...WIND ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO NOON PDT
SUNDAY...

* WHAT...North to northeast winds 20 to 30 mph with gusts up to 
  45 or 50 mph expected.

* WHERE...Moses Lake Area including the cities of Moses Lake,
  Ephrata, Soap Lake, Stratford and Winchester. This includes I 90
  from the Adams Grant county line west to about mile post 165. 

* WHEN...From 11 PM this evening to noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be broken or blown down and a few power outages may
  result. Cross winds across I 90 will make travel difficult,
  especially for high profile vehicles. 


&&

$$

IDZ001-002-282330-
/O.EXT.KOTX.WI.Y.0005.190928T1100Z-190929T1900Z/
Northern Panhandle-Coeur d'Alene Area-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, Eastport, Coeur d'Alene, Post Falls, Hayden, 
and Worley
309 AM PDT Sat Sep 28 2019

...WIND ADVISORY NOW IN EFFECT UNTIL NOON PDT SUNDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 or 55 
  mph expected.

* WHERE...Most of the north Idaho Panhandle including the the 
  Highway 95 corridor from the Canadian border south to Coeur 
  d'Alene. This will also impact the Highway 2 corridor from 
  Oldtown to Sandpoint as well as the Rathdrum Prairie.

* WHEN...Until noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs, especially those that become covered with heavy 
  wet snow could be blown down resulting temporary road closures 
  and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
856 
WWUS76 KOTX 282224
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
324 PM PDT Sat Sep 28 2019

IDZ001-002-291200-
/O.CON.KOTX.WI.Y.0005.000000T0000Z-190929T1900Z/
Northern Panhandle-Coeur d'Alene Area-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, Eastport, Coeur d'Alene, Post Falls, Hayden, 
and Worley
324 PM PDT Sat Sep 28 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PDT SUNDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 40 or 50 
  mph expected.

* WHERE...Most of the north Idaho Panhandle including the the 
  Highway 95 corridor from the Canadian border south to Coeur 
  d'Alene. This will also impact the Highway 2 corridor from 
  Oldtown to Sandpoint as well as the Rathdrum Prairie.

* WHEN...Until noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs, especially those that become laden with heavy 
  wet snow could be blown down resulting temporary road closures 
  and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

WAZ034-291200-
/O.CON.KOTX.WI.Y.0005.190929T0600Z-190929T1900Z/
Moses Lake Area-
Including the cities of Moses Lake, Ephrata, Othello, and Quincy
324 PM PDT Sat Sep 28 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
NOON PDT SUNDAY...

* WHAT...North to northeast winds 20 to 30 mph with gusts up to 
  40 or 45 mph expected.

* WHERE...Moses Lake Area including the cities of Moses Lake, 
  Ephrata, Soap Lake, Stratford and Winchester. This includes I 
  90 from the Adams-Grant County line west to mile post 165.

* WHEN...From 11 PM this evening to noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be broken or blown down and a few power 
  outages may result. Cross winds across I 90 will make travel 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
208 
WWUS76 KOTX 290223
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
723 PM PDT Sat Sep 28 2019

IDZ001-002-291430-
/O.CON.KOTX.WI.Y.0005.000000T0000Z-190929T1900Z/
Northern Panhandle-Coeur d'Alene Area-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, Eastport, Coeur d'Alene, Post Falls, Hayden, 
and Worley
723 PM PDT Sat Sep 28 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PDT SUNDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 40 or 50 
  mph expected.

* WHERE...Most of the north Idaho Panhandle including the the 
  Highway 95 corridor from the Canadian border south to Coeur 
  d'Alene. This will also impact the Highway 2 corridor from 
  Oldtown to Sandpoint as well as the Rathdrum Prairie.

* WHEN...Until noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs, especially those that become laden with heavy wet 
  snow could be blown down resulting temporary road closures and 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

WAZ034-291430-
/O.CON.KOTX.WI.Y.0005.190929T0600Z-190929T1900Z/
Moses Lake Area-
Including the cities of Moses Lake, Ephrata, Othello, and Quincy
723 PM PDT Sat Sep 28 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
NOON PDT SUNDAY...

* WHAT...North to northeast winds 20 to 30 mph with gusts up to 
  40 or 45 mph expected.

* WHERE...Moses Lake Area including the cities of Moses Lake, 
  Ephrata, Soap Lake, Stratford and Winchester. This includes I 
  90 from the Adams-Grant County line west to mile post 165.

* WHEN...From 11 PM this evening to noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be broken or blown down and a few power 
  outages may result. Cross winds across I 90 will make travel 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
204 
WWUS76 KOTX 291027
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
327 AM PDT Sun Sep 29 2019

IDZ002-291915-
/O.CAN.KOTX.WI.Y.0005.000000T0000Z-190929T1900Z/
/O.NEW.KOTX.FZ.W.0003.190930T0900Z-190930T1700Z/
Coeur d'Alene Area-
Including the cities of Coeur d'Alene, Post Falls, Hayden, 
and Worley
327 AM PDT Sun Sep 29 2019

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM PDT MONDAY...
...WIND ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 29 expected. Winds
  have decreased across the Coeur d'Alene area and therefore the
  wind advisory has been cancelled. Gusts up 30 mph is still possible
  this morning.

* WHERE...Coeur d'Alene Area.

* WHEN...From 2 AM to 10 AM PDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...More freezing morning temperatures are
  expected during the next week. The official growing season for
  the Coeur D'Alene area runs through September 30th so this will
  be the last Freeze Warning issued for this area this year.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

WAZ034-291915-
/O.CAN.KOTX.WI.Y.0005.000000T0000Z-190929T1900Z/
/O.NEW.KOTX.FZ.W.0004.191001T0900Z-191001T1700Z/
Moses Lake Area-
Including the cities of Moses Lake, Ephrata, Othello, and Quincy
327 AM PDT Sun Sep 29 2019

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM PDT TUESDAY...
...WIND ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 30 expected. Strong
  winds have not materialized as forecasted, therefore the wind
  advisory has been cancelled. 

* WHERE...Moses Lake Area.

* WHEN...From 2 AM to 10 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...More freezing morning temperatures are
  possible during the next week. The official growing season for
  the Moses Lake area runs through October 15th.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IDZ003-WAZ033-035-036-291915-
/O.NEW.KOTX.FZ.W.0003.190930T0900Z-190930T1700Z/
Idaho Palouse-Washington Palouse-Upper Columbia Basin-
Spokane Area-
Including the cities of Moscow, Plummer, Potlatch, Genesee, 
Pullman, Colfax, Rosalia, La Crosse, Oakesdale, Tekoa, Uniontown,
Ritzville, Grand Coulee, Odessa, Wilbur, Coulee City, Spokane, 
Cheney, Davenport, and Rockford
327 AM PDT Sun Sep 29 2019

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM PDT MONDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...In Washington, Washington Palouse, Upper Columbia Basin
  and Spokane Area. In Idaho, Idaho Palouse.

* WHEN...From 2 AM to 10 AM PDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...More freezing morning temperatures are
  expected during the next week. The official growing season for
  these areas runs through September 30th so this will be the last
  Freeze Warning issued for these areas this year.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IDZ026-WAZ032-041-043-044-291915-
/O.NEW.KOTX.FZ.W.0004.191001T0900Z-191001T1700Z/
Lewiston Area-Lower Garfield and Asotin Counties-Wenatchee Area-
Okanogan Valley-Waterville Plateau-
Including the cities of Lewiston, Lapwai, Peck, Culdesac, 
Gifford, Clarkston, Pomeroy, Wenatchee, Chelan, Entiat, Cashmere,
Omak, Okanogan, Brewster, Bridgeport, Oroville, Nespelem, 
Waterville, and Mansfield
327 AM PDT Sun Sep 29 2019

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM PDT TUESDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...In Washington, Lower Garfield and Asotin Counties,
  Wenatchee Area, Okanogan Valley and Waterville Plateau. In
  Idaho, Lewiston Area.

* WHEN...From 2 AM to 10 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...More freezing morning temperatures are
  possible during the next week. The official growing season for
  these areas runs through October 15th.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IDZ001-291900-
/O.CON.KOTX.WI.Y.0005.000000T0000Z-190929T1900Z/
Northern Panhandle-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, and Eastport
327 AM PDT Sun Sep 29 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PDT TODAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 40 or 45 
  mph expected.

* WHERE...Portions of the north Idaho Panhandle including the the
  Highway 95 corridor from south of Bonners Ferry to Cocolalla. 
  This will also impact the Highway 2 corridor from Oldtown to 
  Sandpoint.

* WHEN...Until noon PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs, especially those that become laden with heavy wet 
  snow could be blown down resulting temporary road closures and 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
634 
WWUS76 KOTX 291801
NPWOTX

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
1101 AM PDT Sun Sep 29 2019

IDZ001-291915-
/O.CAN.KOTX.WI.Y.0005.000000T0000Z-190929T1900Z/
Northern Panhandle-
Including the cities of Sandpoint, Rathdrum, Bonners Ferry, 
Priest River, and Eastport
1101 AM PDT Sun Sep 29 2019

...WIND ADVISORY IS CANCELLED...

The threat for strong northerly winds has diminished. Expect 
local wind gusts of 20 to 30 mph into the afternoon. 

$$

IDZ002-003-WAZ033-035-036-300215-
/O.CON.KOTX.FZ.W.0003.190930T0900Z-190930T1700Z/
Coeur d'Alene Area-Idaho Palouse-Washington Palouse-
Upper Columbia Basin-Spokane Area-
Including the cities of Coeur d'Alene, Post Falls, Hayden, 
Worley, Moscow, Plummer, Potlatch, Genesee, Pullman, Colfax, 
Rosalia, La Crosse, Oakesdale, Tekoa, Uniontown, Ritzville, 
Grand Coulee, Odessa, Wilbur, Coulee City, Spokane, Cheney, 
Davenport, and Rockford
1101 AM PDT Sun Sep 29 2019

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM PDT
MONDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...In Washington, Washington Palouse, Upper Columbia 
  Basin and Spokane Area. In Idaho, Idaho Palouse.

* WHEN...From 2 AM to 10 AM PDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...More freezing morning temperatures are 
  expected during the next week. The official growing season for 
  these areas runs through September 30th so this will be the 
  last Freeze Warning issued for these areas this year.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IDZ026-WAZ032-034-041-043-044-300215-
/O.CON.KOTX.FZ.W.0004.191001T0900Z-191001T1700Z/
Lewiston Area-Lower Garfield and Asotin Counties-Moses Lake Area-
Wenatchee Area-Okanogan Valley-Waterville Plateau-
Including the cities of Lewiston, Lapwai, Peck, Culdesac, 
Gifford, Clarkston, Pomeroy, Moses Lake, Ephrata, Othello, 
Quincy, Wenatchee, Chelan, Entiat, Cashmere, Omak, Okanogan, 
Brewster, Bridgeport, Oroville, Nespelem, Waterville, 
and Mansfield
1101 AM PDT Sun Sep 29 2019

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM PDT
TUESDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...In Washington, Lower Garfield and Asotin Counties, 
  Wenatchee Area, Okanogan Valley and Waterville Plateau. In 
  Idaho, Lewiston Area.

* WHEN...From 2 AM to 10 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...More freezing morning temperatures are 
  possible during the next week. The official growing season for 
  these areas runs through October 15th.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

What forecasters said that day

The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Spokane, WA wrote its last area forecast discussion before this wind advisory went out at Sep 27, 2:40 AM PDT, 15 minutes earlier.

Area forecast discussion, Sep 27, 2:40 AM PDT, 15 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
240 AM PDT Fri Sep 27 2019

.SYNOPSIS...
A powerful cold front will bring strong north winds, much cooler
temperatures, and snow to the mountains this weekend. A large
portion of north Idaho and eastern Washington will likely
experience an early freeze with low temperatures in the upper 20s
and low 30s Sunday night, Monday night, and Tuesday night.

&&

.DISCUSSION...

...BLUSTERY NORTH WINDS...UNSEASONABLY COLD TEMPERATURES...AND
MOUNTAIN SNOW THIS WEEKEND...

Today: Upper level low will move south into the Pacific Northwest
later today. This morning will be fairly benign with a slow
increase in clouds. Afternoon temperatures will top out in the mid
50s to lower 60s for most valleys. This is about 5 to 10 degrees
below average...but by Saturday we will fondly remember these
'warmer' temperatures. Rain will develop in the afternoon with the
low moving in. Most models are showing the best chance of showers
remaining across the northern counties of WA and ID. There is
some instability stretching from the Republic area southeast
towards Spokane/COE and to St Maries. Have kept thunder in the
forecast for the afternoon. Some of the high res models are even
showing wrap around precip from the surface low starting this aftn
and continuing through the night across portions of the eastern
Columbia Basin into the Palouse. But they all agree that the
heavier precip will be across the north.

Tonight through Saturday Night: The low will remain near the WA/OR
border and bring continuous pieces of energy into the region.

*Winds: Winds will become northeast Friday evening and begin to
 blow down the Highway 95 corridor around midnight. By morning the
 winds will spread down the north/south oriented valleys of
 northern WA and into the Columbia Basin and the Spokane area.
 These winds will remain elevated through Saturday night. Sunday
 winds will continue, but will be less than what is seen Saturday.
 Have decided to issue a wind advisory for Boundary, Bonner and
 western Kootenai counties for Sat and Sat night with gusts up to
 50 mph possible.

*Snow Levels: Snow levels will start out above 5k ft this
 afternoon and then lower quickly overnight and Sat morning.
 Saturday levels will be btwn 2500-3500 ft, with another drop to
 1500-2500 ft Sat night into Sunday morning.

*Rain/Snow: Today and tonight we should see rain and high mountain
 snow. Towards Saturday morning we will start to see snow mix with
 rain across some of the northern valleys of NE WA and N ID.
 Cannot rule out some rain/snow mix down along the Highway 2
 corridor during the afternoon, but it should not be accumulating.
 Sat night most locations along Highway 2 and northward will see
 rain/snow mix, with possible very light accumulations of less
 than an inch, mainly for grassy surfaces. The mountains however
 could see 6 to 12 inches of snow. Will continue the winter storm
 watch.

*Temperatures: Have lowered our temperatures a few degrees further
 that what was previously in the forecast. Lows in the mid 20s to
 mid 30s is forecast. Saturday high temps will be 20-25 degrees
 below average for this time of the year. Our high will actually
 be what we should typically see for our low temperatures for the
 end of September. Highs in the 40s expected. Wind chills in the
 20s to mid 30s is expected...even lower in the mountains.

*Impacts: Lots of potential impacts, so will make this brief.
 People keeping gardens going, or have not harvested their bounty:
 it would be best to either protect your sensitive plants or pick
and pull your items. Any outdoor enthusiasts: Dress for the
weather. It is going to feel like winter, a fleece will likely not
cut it. Boaters: be prepared for choppy waters, white caps.
Columbia Basin People: Not a lot of precipitation is expected
south of a line from from Ritzville to Vantage. So, any recently
plowed fields could produce some blowing dust Saturday afternoon
and evening. Travelers: Be prepared for winter driving conditions,
especially across the higher terrain. Even in the valleys during
the late night and early morning hours, roads will likely become
slick. Other: the winds may cause isolated power outages and/or
small tree branches to break. /Nisbet

Sunday: Bands of precipitation are expected to continue to wrap
around the center of the cold upper low parked over Oregon on
Sunday. Forecasting deformation bands is tough leading to a low
confidence forecast for precipitation amounts on Sunday. At this
time it looks like the mountains of the central and southern Idaho
Panhandle will have the best opportunity to receive an additional
1 to 4 inches of high elevation snow on Sunday. The Cascades will
also have a good shot of a couple inches of wet accumulation.
Even though snow levels will be down to the valley floors Sunday
morning, it may be tough for snow to accumulate in places like
Kellogg, St Maries, Coeur d'Alene, and Spokane. Early morning
temperatures are expected to be at or below freezing, but ground
temperatures may be too warm for much accumulation. A couple hours
after sunrise, snow may even struggle to accumulate on pavement
on well traveled mountain roads. We are only a week removed from
the equinox and the sun angle is pretty high.

High temperatures on Sunday have been lowered to be in line with
MOS guidance from the evening model runs. Many communities in the
northern and central Idaho Panhandle and northeast Washington will
likely struggle to get out of the upper 30s on Sunday afternoon.
Some long standing reporting sites will break records for the
coldest high temperatures for the month of September. Our forecast
for Spokane is 40 degrees which is very close to the record
coldest high temp on record for September of 39 set on Sep 23,
1926. To add insult to injury, northeast winds of 15 to 25 mph in
the Columbia Basin and down the Highway 95 corridor in north Idaho
will make it feel even colder. Wind chills in the teens during
the morning will only rebound into the mid to upper 20s.

Monday and Tuesday: Confidence is growing that widespread killing
frost will occur across large portions of the Inland Northwest
Monday morning and Tuesday morning. There may be enough northeast
wind persisting into the early morning hours on Monday to keep
some agricultural areas of the Columbia Basin from falling into
the upper 20s and low 30s. If a killing freeze doesn't occur
Monday morning around Moses Lake and sheltered cold pockets around
Wenatchee, chances are good that a freeze will occur Tuesday
morning. At this time, it looks like Tuesday morning will be the
coldest morning of the week region-wide under clearing skies and
light winds. Notoriously cold spots like Republic, Deer Park,
Springdale may dip into the low 20s Tue morning.

Wednesday and Thursday: Temperatures will slowly moderate Wed and
Thu. Afternoon highs in the 50s with pockets of low 60s in the
Columbia Basin and L-C Valley will still be a good 10 to 15
degrees below average. There are small chances for precipitation
Wed night into Thu with an incoming trough. /GKoch

&&

.AVIATION...
06Z TAFS: The area will be in a weak lull between systems
tonight. Limited shower chances will linger around the
GEG/SFF/COE/PUW area through the early afternoon. There is a
threat of MVFR cigs overnight/early Friday over GEG/SFF/COE/PUW
but the confidence low. The next front and area of low pressure
starts to move Friday, leading to increasing shower chances again
with more breezy conditions. Some thunderstorms may be found near
GEG/SFF/COE as well. Overall precipitation through this TAF period
will be mainly isold-sct in variety, though better chances
develop going into Friday night late. Winds be mainly west to
southwest, but the intrusion of the cold front from the will start
to impinge on north ID, turning COE winds toward northeast late
in the period. /Cote'

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        60  35  42  31  40  29 /  30  90  90  60  60  30
Coeur d'Alene  58  35  42  32  40  29 /  50  90  90  60  60  30
Pullman        61  37  45  32  41  29 /  10  60  70  60  50  30
Lewiston       69  45  52  38  45  35 /  10  50  70  50  50  30
Colville       63  29  45  27  43  32 /  50  90  80  60  60  40
Sandpoint      57  34  43  32  40  29 /  60 100  90  70  70  50
Kellogg        55  36  43  32  38  29 /  40  90  90  80  70  50
Moses Lake     67  39  50  36  47  36 /   0  60  60  70  40  50
Wenatchee      62  40  48  38  45  37 /  10  90  90  80  60  60
Omak           59  40  48  36  48  34 /  30  90  90  60  50  50

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Winter Storm Watch from this evening through Sunday morning for
     Central Panhandle Mountains-Northern Panhandle.
  ...Wind Advisory from Saturday morning through early Sunday morning
     for the Northern Panhandle-Coeur d'Alene area.

WA...Winter Storm Watch from this evening through Sunday morning
     above 3000 feet for East Slopes Northern Cascades-Northeast
     Mountains-Okanogan Highlands.

&&
Hazardous weather outlook, Sep 26, 5:05 AM PDT, 21 hours 50 minutes before
Hazardous Weather Outlook
National Weather Service Spokane WA
505 AM PDT Thu Sep 26 2019

IDZ001>004-WAZ033>038-041>044-271215-
Northern Panhandle-Coeur d'Alene Area-Idaho Palouse-
Central Panhandle Mountains-Washington Palouse-Moses Lake Area-
Upper Columbia Basin-Spokane Area-Northeast Mountains-
Okanogan Highlands-Wenatchee Area-East Slopes Northern Cascades-
Okanogan Valley-Waterville Plateau-
505 AM PDT Thu Sep 26 2019

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

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Raw and windy northeast winds will begin late Friday night down
the Highway 95 corridor and then spread into Washington Saturday
morning. Breezy winds will continue through Sunday. Blowing dust
is a growing concern if we do not receive any appreciable
precipitation before Saturday across portions of the Columbia
Basin.

The unseasonably cold weather system will bring a chance of snow
over higher terrain Friday through Sunday. In the valleys areas
of frost are possible each morning this weekend and into early
next week.

IDZ026-027-WAZ031-032-271215-
Lewiston Area-Lewis and Southern Nez Perce Counties-
Northeast Blue Mountains-Lower Garfield and Asotin Counties-
505 AM PDT Thu Sep 26 2019

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

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

No hazardous weather is expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 1:56 PM PDTWinter Storm WarningOTXFerry, Okanogan, Pend Oreille, Spokane, Stevens51 hr

Nearby

Wind Advisories in Idaho, 2019Wind Advisories in Washington, 2019Every wind advisory in 2019

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.