Alert archive / Idaho / Special Weather Statements in 2023

Special Weather Statement, NWS Boise, ID

August 7, 2023Valley County, Idaho

NWS Boise, ID issued this special weather statement at Aug 7, 2023, 4:21 PM MDT for Valley County, Idaho. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 7, 2023, 4:21 PM MDT (22:21 UTC)
Expired: Aug 7, 2023, 5:00 PM MDT
In force: 39 min
Issued by: NWS Boise, ID
Hail: 0.50 in
Wind: 40

County Valley County, ID

The radar

The Boise radar (KCBX), 116 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 354 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 248 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1114 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: -1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 6:05 PM MDT	Special Weather Statement	BOI	Canyon	25 min
Aug 6, 6:17 PM MDT	Special Weather Statement	BOI	Ada	43 min
Aug 6, 6:49 PM MDT	Special Weather Statement	BOI	Ada, Canyon	41 min
Aug 7, 2:42 PM MDT	Special Weather Statement	BOI	Washington	48 min
Aug 7, 2:44 PM MDT	Special Weather Statement	BOI	Adams	46 min
Aug 7, 2:49 PM MDT	Special Weather Statement	BOI		41 min
Aug 7, 2:59 PM MDT	Special Weather Statement	BOI		46 min
Aug 7, 3:21 PM MDT	Special Weather Statement	BOI	Washington	39 min
Aug 7, 3:35 PM MDT	Special Weather Statement	BOI	Washington	40 min
Aug 7, 3:45 PM MDT	Special Weather Statement	BOI	Gem, Payette, Washington	60 min
Aug 7, 3:58 PM MDT	Severe Thunderstorm Warning	BOI	Payette, Washington	47 min
Aug 7, 4:26 PM MDT	Special Weather Statement	BOI	Canyon, Gem	49 min
Aug 7, 4:48 PM MDT	Severe Thunderstorm Warning	BOI	Ada, Gem	27 min
Aug 7, 5:11 PM MDT	Special Weather Statement	BOI	Ada, Boise	64 min
Aug 7, 5:59 PM MDT	Areal Flood Advisory	BOI	Ada	3 hr
Aug 7, 5:59 PM MDT	Special Weather Statement	BOI	Ada	46 min
Aug 7, 1:45 PM MDT	Special Weather Statement	BOI	Baker	45 min
Aug 7, 2:09 PM MDT	Special Weather Statement	BOI	Baker	36 min
Aug 7, 2:39 PM MDT	Areal Flood Advisory	BOI	Baker, Malheur	3 hr
Aug 7, 3:50 PM MDT	Severe Thunderstorm Warning	BOI	Malheur	40 min
Aug 7, 4:36 PM MDT	Special Weather Statement	BOI	Malheur	39 min

Nearby

Special Weather Statements in Idaho, 2023 Every special weather statement in 2023

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.