Alert archive / Idaho / Red Flag Warnings in 2020

Red Flag Warning 8, NWS Boise, ID

August 25, 20208 counties in Idaho

NWS Boise, ID issued this red flag warning at Aug 25, 2020, 8:13 AM MDT for 8 counties in Idaho. It took effect at Aug 25, 2020, 12:00 PM MDT. It was in force for 10 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 25, 2020, 8:13 AM MDT (14:13 UTC)
In effect from
Aug 25, 2020, 12:00 PM MDT
Expired
Aug 25, 2020, 10:00 PM MDT
In force
10 hr
Issued by
NWS Boise, ID

Counties Boise County, ID, Camas County, ID, Elmore County, ID, Gooding County, ID, Jerome County, ID, Lincoln County, ID, Owyhee County, ID, Twin Falls County, ID

The radar

The Boise radar (KCBX), 111 km from the middle of the area, began a volume at 14:15 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, 2.2 hours before the alert went out and 112 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.

Skew-T log-pSkew-T log-p diagram, Boise Airport, ID at 12:00Z on 2020-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boise Airport, ID at 12:00Z on 2020-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2294 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Boise, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 6:17 PM MDTSpecial Weather StatementBOI43 min
Aug 24, 9:52 PM MDTSpecial Weather StatementBOI53 min
Aug 25, 1:44 PM MDTSpecial Weather StatementBOI61 min
Aug 25, 4:17 PM MDTSpecial Weather StatementBOITwin Falls43 min
Aug 25, 4:41 PM MDTSpecial Weather StatementBOIGooding, Jerome49 min
Aug 24, 7:29 PM MDTSpecial Weather StatementBOIMalheur46 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.