Alert archive / Idaho / Red Flag Warnings in 2015
Red Flag Warning 8, NWS Boise, ID
NWS Boise, ID issued this red flag warning at Aug 9, 2015, 2:36 PM MDT for 11 counties in Idaho. It took effect at Aug 10, 2015, 8:34 AM MDT. 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 9, 2015, 2:36 PM MDT (20:36 UTC)
- In effect from
- Aug 10, 2015, 8:34 AM MDT
- Expired
- Aug 10, 2015, 9:00 PM MDT
- In force
- 12 hr
- Issued by
- NWS Boise, ID
Counties Ada County, ID, Adams County, ID, Boise County, ID, Camas County, ID, Canyon County, ID, Elmore County, ID, Gem County, ID, Idaho County, ID, Payette County, ID, Valley County, ID, Washington County, ID
The radar
The Boise radar (KCBX), 78 km from the middle of the area, began a volume at 20:38 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, 8.6 hours before the alert went out and 393 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
- 2064 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag warning 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 red flag warning went out at Aug 9, 10:12 AM MDT, 4 hours 24 minutes earlier.
Area forecast discussion, Aug 9, 10:12 AM MDT, 4 hours 24 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 |
|---|---|---|---|---|
| Aug 9, 10:37 AM MDT | Fire Weather Watch | BOI | Adams, Boise, Camas, Elmore, Gem, Idaho and 3 more | 4 hr |
| Aug 9, 4:38 PM MDT | Special Weather Statement | BOI | Owyhee | 37 min |
Nearby
Red Flag Warnings in Idaho, 2015Red Flag Warnings in Oregon, 2015Every red flag warning in 2015
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.