Alert archive / Idaho / Wind Advisories in 2020
Wind Advisory 15, NWS Boise, ID
NWS Boise, ID issued this wind advisory at Nov 12, 2020, 1:44 PM MST for Owyhee County, Twin Falls County, Idaho; Harney County, Malheur County, Oregon. It took effect at Nov 13, 2020, 11:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 12, 2020, 1:44 PM MST (20:44 UTC)
- In effect from
- Nov 13, 2020, 11:00 AM MST
- Expired
- Nov 13, 2020, 9:11 AM MST
- In force
- Issued by
- NWS Boise, ID
Counties Owyhee County, ID, Twin Falls County, ID, Harney County, OR, Malheur County, OR
The radar
The Boise radar (KCBX), 92 km from the middle of the area, began a volume at 20:42 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
Boise Airport, ID (KBOI), launched 12:00Z, 8.7 hours before the alert went out and 101 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
- 1005 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Boise, ID wrote its last area forecast discussion before this wind advisory went out at Nov 12, 10:04 AM MST, 3 hours 40 minutes earlier.
Area forecast discussion, Nov 12, 10:04 AM MST, 3 hours 40 minutes before
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</html>The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 12, 1:44 PM MST | Winter Storm Warning | BOI | Adams, Boise, Camas, Elmore, Gem, Valley and 1 more | 32 hr |
| Nov 12, 1:44 PM MST | Winter Weather Advisory | BOI | Adams, Camas, Elmore, Washington | 32 hr |
Nearby
Wind Advisories in Idaho, 2020Wind Advisories in Oregon, 2020Every wind 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.