Alert archive / Washington / Blowing Dust Advisories in 2020
Blowing Dust Advisory 2, NWS Spokane, WA
NWS Spokane, WA issued this blowing dust advisory at Sep 6, 2020, 1:57 PM PDT for 7 counties in Washington. It took effect at Sep 7, 2020, 5:00 AM PDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Sep 6, 2020, 1:57 PM PDT (20:57 UTC)
- In effect from
- Sep 7, 2020, 5:00 AM PDT
- Expired
- Sep 7, 2020, 8:00 PM PDT
- In force
- 15 hr
- Issued by
- NWS Spokane, WA
Counties Adams County, WA, Douglas County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Spokane County, WA, Whitman County, WA
The radar
The Spokane radar (KOTX), 82 km from the middle of the area, began a volume at 21:02 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, 9.0 hours before the alert went out and 173 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2880 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this blowing dust 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 blowing dust advisory went out at Sep 6, 10:47 AM PDT, 3 hours 10 minutes earlier.
Area forecast discussion, Sep 6, 10:47 AM PDT, 3 hours 10 minutes before
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</html>Hazardous weather outlook, Sep 6, 5:27 AM PDT, 8 hours 30 minutes before
Hazardous Weather Outlook National Weather Service Spokane WA 527 AM PDT Sun Sep 6 2020 IDZ001-002-004-WAZ032>038-041-043-044-071300- Northern Panhandle-Coeur d'Alene Area-Central Panhandle Mountains- Lower Garfield and Asotin Counties-Washington Palouse- Moses Lake Area-Upper Columbia Basin-Spokane Area- Northeast Mountains-Okanogan Highlands-Wenatchee Area- Okanogan Valley-Waterville Plateau- 527 AM PDT Sun Sep 6 2020 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 at this time. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Areas of blowing dust is possible across the Waterville Plateau and into the Columbia Basin. Visibilities of a quarter mile or less is possible at times, which could lead to road closures. Difficulty driving high profile vehicles along east west roads is expected. Damage to trees and limbs is possible. Trees could be blown down and power outages may result. Lakes will become choppy and dangerous to be on. Gusty winds will blow around unsecured objects. Anyone outdoor recreating this weekend should make plans to be in a safe location by early Monday morning. IDZ003-026-027-WAZ031-042-071300- Idaho Palouse-Lewiston Area-Lewis and Southern Nez Perce Counties- Northeast Blue Mountains-East Slopes Northern Cascades- 527 AM PDT Sun Sep 6 2020 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...North Central Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Breezy to windy conditions are expected Monday.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 2:50 AM PDT | Wind Advisory | OTX | Adams, Douglas, Grant, Lincoln, Okanogan, Pend Oreille and 3 more | 38 hr |
| Sep 6, 5:30 AM PDT | Red Flag Warning | OTX | 39 hr |
Nearby
Blowing Dust Advisories in Washington, 2020Every blowing dust advisory in 2020
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.