Alert archive / Montana / Special Weather Statements in 2023

Special Weather Statement, NWS Missoula, MT

July 10, 2023Ravalli County, Montana

NWS Missoula, MT issued this special weather statement at Jul 10, 2023, 2:11 PM MDT for Ravalli County, Montana. It was in force for 49 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
Jul 10, 2023, 2:11 PM MDT (20:11 UTC)
Expired
Jul 10, 2023, 3:00 PM MDT
In force
49 min
Issued by
NWS Missoula, MT
Hail
0.50 in
Wind
40

County Ravalli County, MT

The radar

The Missoula radar (KMSX), 132 km from the middle of the area, began a volume at 20:15 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

Spokane, WA (KOTX), launched 12:00Z, 8.2 hours before the alert went out and 274 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, Spokane, WA at 12:00Z on 2023-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 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, Spokane, WA at 12:00Z on 2023-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
19 J/kg
Mixed-layer CIN
-292 J/kg
Mixed-layer LCL
2974 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
54 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 Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 3:50 PM MDTSpecial Weather StatementMSODeer Lodge40 min
Jul 10, 4:09 PM MDTSpecial Weather StatementMSO51 min
Jul 10, 4:35 PM MDTSpecial Weather StatementMSOLincoln40 min
Jul 10, 5:05 PM MDTSpecial Weather StatementMSOLake25 min
Jul 10, 5:54 PM MDTSpecial Weather StatementMSOLake36 min
Jul 10, 5:40 PM MDTSpecial Weather StatementMSOIdaho50 min

Nearby

Special Weather Statements in Montana, 2023Every 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.