Alert archive / Idaho / Wind Advisories in 2019
Wind Advisory 5, NWS Spokane, WA
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.
- 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
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 27, 1:56 PM PDT | Winter Storm Warning | OTX | Ferry, Okanogan, Pend Oreille, Spokane, Stevens | 51 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.