Alert archive / Idaho / Red Flag Warnings in 2015

Red Flag Warning 4, NWS Boise, ID

July 22, 2015Owyhee County, Idaho

NWS Boise, ID issued this red flag warning at Jul 22, 2015, 8:42 AM MDT for Owyhee County, Idaho. It took effect at Jul 22, 2015, 3:00 PM MDT. It was in force for 6 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
Jul 22, 2015, 8:42 AM MDT (14:42 UTC)
In effect from
Jul 22, 2015, 3:00 PM MDT
Expired
Jul 22, 2015, 9:00 PM MDT
In force
6 hr
Issued by
NWS Boise, ID

County Owyhee County, ID

The radar

The Boise radar (KCBX), 101 km from the middle of the area, began a volume at 14:43 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

Reno, NV (KREV), launched 12:00Z, 2.7 hours before the alert went out and 376 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, Reno, NV at 12:00Z on 2015-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 97 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, Reno, NV at 12:00Z on 2015-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 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
97 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
1492 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
75 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
Jul 21, 6:27 PM MDTSpecial Weather StatementBOI48 min
Jul 21, 6:50 PM MDTSpecial Weather StatementBOI40 min
Jul 21, 8:26 PM MDTSpecial Weather StatementBOIPayette49 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.