Alert archive / Idaho / Red Flag Warnings in 2020
Red Flag Warning 9, NWS Boise, ID
NWS Boise, ID issued this red flag warning at Aug 26, 2020, 7:12 AM PDT for 4 counties in Idaho. It took effect at Aug 26, 2020, 11:00 AM PDT. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 26, 2020, 7:12 AM PDT (14:12 UTC)
- In effect from
- Aug 26, 2020, 11:00 AM PDT
- Expired
- Aug 26, 2020, 11:00 PM PDT
- In force
- 12 hr
- Issued by
- NWS Boise, ID
Counties Idaho County, ID, Owyhee County, ID, Twin Falls County, ID, Valley County, ID
The radar
The Boise radar (KCBX), 76 km from the middle of the area, began a volume at 14:12 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, 2.2 hours before the alert went out and 430 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
- 47 J/kg
- Mixed-layer CIN
- -706 J/kg
- Mixed-layer LCL
- 2642 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:15 PM PDT | Special Weather Statement | BOI | 45 min | |
| Aug 25, 5:44 PM PDT | Special Weather Statement | BOI | Camas | 31 min |
| Aug 25, 6:54 PM PDT | Special Weather Statement | BOI | Twin Falls | 51 min |
| Aug 25, 7:19 PM PDT | Special Weather Statement | BOI | Adams | 41 min |
| Aug 25, 7:21 PM PDT | Special Weather Statement | BOI | Twin Falls | 39 min |
| Aug 26, 3:07 PM PDT | Special Weather Statement | BOI | Twin Falls | 53 min |
| Aug 26, 3:24 PM PDT | Special Weather Statement | BOI | Gooding | 51 min |
| Aug 26, 3:42 PM PDT | Special Weather Statement | BOI | Owyhee | 48 min |
| Aug 26, 3:55 PM PDT | Severe Thunderstorm Warning | BOI | Owyhee | 50 min |
| Aug 26, 4:16 PM PDT | Severe Thunderstorm Warning | BOI | Owyhee | 44 min |
| Aug 26, 4:27 PM PDT | Severe Thunderstorm Warning | BOI | Owyhee | 25 min |
| Aug 26, 4:48 PM PDT | Severe Thunderstorm Warning | BOI | Owyhee | 42 min |
| Aug 25, 5:53 PM PDT | Severe Thunderstorm Warning | BOI | Malheur | 22 min |
| Aug 25, 6:38 PM PDT | Special Weather Statement | BOI | Baker | 52 min |
Nearby
Red Flag Warnings in Idaho, 2020Red Flag Warnings in Oregon, 2020Every red flag warning 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.