Alert archive / Idaho / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 49, NWS Boise, ID

August 12, 2022Ada County, Boise County, Elmore County, Idaho

NWS Boise, ID issued this severe thunderstorm warning at Aug 12, 2022, 4:13 PM MDT for Ada County, Boise County, Elmore County, Idaho. It was in force for 30 min. 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 12, 2022, 4:13 PM MDT (22:13 UTC)
Expired
Aug 12, 2022, 4:43 PM MDT
In force
30 min
Issued by
NWS Boise, ID
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Ada County, ID, Boise County, ID, Elmore County, ID

The radar

The Boise radar (KCBX), 36 km from the middle of the area, began a volume at 22:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 12, 1:55 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 10.2 hours before the alert went out and 31 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 2022-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 154 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 2022-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 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
154 J/kg
Mixed-layer CIN
-327 J/kg
Mixed-layer LCL
2570 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 7:18 PM MDTSpecial Weather StatementBOIElmore42 min
Aug 11, 9:52 PM MDTSpecial Weather StatementBOIElmore38 min
Aug 11, 11:41 PM MDTSpecial Weather StatementBOIBoise34 min
Aug 12, 1:15 AM MDTSpecial Weather StatementBOIBoise45 min
Aug 12, 1:55 AM MDTSpecial Weather StatementBOIBoise35 min
Aug 12, 12:30 PM MDTSpecial Weather StatementBOIAdams45 min
Aug 12, 12:51 PM MDTSevere Thunderstorm WarningBOIAdams, Valley25 min
Aug 12, 12:57 PM MDTSpecial Weather StatementBOITwin Falls48 min
Aug 12, 1:47 PM MDTSpecial Weather StatementBOIOwyhee43 min
Aug 12, 1:54 PM MDTSpecial Weather StatementBOIAdams36 min
Aug 12, 1:58 PM MDTSevere Thunderstorm WarningBOIElmore, Owyhee47 min
Aug 12, 2:02 PM MDTSevere Thunderstorm WarningBOIAdams28 min
Aug 12, 2:30 PM MDTSevere Thunderstorm WarningBOIAdams30 min
Aug 12, 2:39 PM MDTSevere Thunderstorm WarningBOIAda, Elmore, Owyhee36 min
Aug 12, 2:55 PM MDTSpecial Weather StatementBOI20 min
Aug 12, 2:56 PM MDTSpecial Weather StatementBOIBoise34 min
Aug 12, 3:11 PM MDTSevere Thunderstorm WarningBOIBoise, Elmore23 min
Aug 12, 3:36 PM MDTSpecial Weather StatementBOI24 min
Aug 12, 3:41 PM MDTSpecial Weather StatementBOIValley34 min
Aug 12, 3:42 PM MDTAreal Flood AdvisoryBOIOwyhee, Twin Falls4 hr
Aug 12, 3:46 PM MDTSevere Thunderstorm WarningBOIAda, Elmore, Owyhee29 min
Aug 12, 3:46 PM MDTSevere Thunderstorm WarningBOIAda, Boise, Elmore29 min
Aug 12, 3:48 PM MDTSevere Thunderstorm WarningBOIBoise, Elmore27 min
Aug 12, 4:02 PM MDTSevere Thunderstorm WarningBOIValley28 min
Aug 12, 4:03 PM MDTSevere Thunderstorm WarningBOIElmore, Owyhee27 min
Aug 12, 4:07 PM MDTSpecial Weather StatementBOIBoise23 min
Aug 12, 4:12 PM MDTSevere Thunderstorm WarningBOIAda, Elmore, Owyhee33 min
Aug 12, 4:21 PM MDTSevere Thunderstorm WarningBOIElmore, Owyhee39 min
Aug 12, 4:28 PM MDTSevere Thunderstorm WarningBOIValley32 min
Aug 12, 4:54 PM MDTSpecial Weather StatementBOIBoise36 min
Aug 12, 4:59 PM MDTSpecial Weather StatementBOIAda16 min
Aug 12, 5:03 PM MDTSpecial Weather StatementBOIGooding27 min
Aug 12, 5:04 PM MDTSevere Thunderstorm WarningBOIOwyhee, Twin Falls41 min
Aug 12, 5:13 PM MDTSpecial Weather StatementBOIValley17 min
Aug 12, 5:14 PM MDTSpecial Weather StatementBOIElmore31 min
Aug 12, 5:32 PM MDTSevere Thunderstorm WarningBOIBoise, Valley43 min
Aug 12, 5:32 PM MDTSevere Thunderstorm WarningBOIValley28 min
Aug 12, 5:48 PM MDTSpecial Weather StatementBOIElmore42 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2022Every severe thunderstorm warning in 2022

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.