Alert archive / Washington / Blowing Dust Advisories in 2020
Blowing Dust Advisory 4, NWS Spokane, WA
NWS Spokane, WA issued this blowing dust advisory at Oct 30, 2020, 11:26 AM PDT for 5 counties in Washington. It took effect at Oct 31, 2020, 11:00 AM PDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Oct 30, 2020, 11:26 AM PDT (18:26 UTC)
- In effect from
- Oct 31, 2020, 11:00 AM PDT
- Expired
- Oct 30, 2020, 12:14 PM PDT
- In force
- Issued by
- NWS Spokane, WA
Counties Adams County, WA, Douglas County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA
The radar
The Spokane radar (KOTX), 116 km from the middle of the area, began a volume at 18:26 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, 6.4 hours before the alert went out and 208 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
- 1698 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 344 m²/s²
- 0-3 km storm-relative helicity
- 441 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 Oct 30, 11:05 AM PDT, 21 minutes earlier.
Area forecast discussion, Oct 30, 11:05 AM PDT, 21 minutes before
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</html>Hazardous weather outlook, Oct 30, 5:49 AM PDT, 5 hours 37 minutes before
Hazardous Weather Outlook National Weather Service Spokane WA 549 AM PDT Fri Oct 30 2020 IDZ002-003-026-027-WAZ031>036-041-042-044-311300- Coeur d'Alene Area-Idaho Palouse-Lewiston Area- Lewis and Southern Nez Perce Counties-Northeast Blue Mountains- Lower Garfield and Asotin Counties-Washington Palouse- Moses Lake Area-Upper Columbia Basin-Spokane Area-Wenatchee Area- East Slopes Northern Cascades-Waterville Plateau- 549 AM PDT Fri Oct 30 2020 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...Central Washington...East Central Washington...North Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT Breezy winds will develop today across the region. Winds will increase this morning across the higher terrain of the Cascades and move into the Columbia Basin, Palouse and Spokane region as well as the Camas Prairie. Gusts 30 to 40 mph is expected, but there could be some isolated gusts to 45 mph...and up to 50 mph in the Cascades. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY No hazardous weather is expected at this time. IDZ001-004-WAZ037-038-043-311300- Northern Panhandle-Central Panhandle Mountains- Northeast Mountains-Okanogan Highlands-Okanogan Valley- 549 AM PDT Fri Oct 30 2020 This Hazardous Weather Outlook is for portions of North Idaho... North Central Washington and Northeast Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY 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 |
|---|---|---|---|---|
| Oct 30, 7:25 AM PDT | Wind Advisory | OTX | Chelan, Douglas, Grant | 10 hr |
| Oct 30, 12:14 PM PDT | Blowing Dust Advisory | OTX | Adams, Douglas, Grant, Lincoln, Okanogan | 5 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.