Alert archive / Montana / Special Weather Statements in 2022

Special Weather Statement, NWS Great Falls, MT

July 14, 2022Lewis and Clark County, Montana

NWS Great Falls, MT issued this special weather statement at Jul 14, 2022, 11:21 PM MDT for Lewis and Clark County, Montana. It was in force for 54 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 14, 2022, 11:21 PM MDT (05:21 UTC)
Expired
Jul 15, 2022, 12:15 AM MDT
In force
54 min
Issued by
NWS Great Falls, MT
Hail
0.25 in
Wind
50

County Lewis and Clark County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 5.4 hours before the alert went out and 300 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 00:00Z on 2022-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2022-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2799 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
72 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 Great Falls, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 7:32 PM MDTSpecial Weather StatementTFXBroadwater43 min
Jul 14, 10:44 PM MDTSpecial Weather StatementTFXJefferson61 min
Jul 14, 11:45 PM MDTSpecial Weather StatementTFXBroadwater60 min
Jul 15, 12:14 AM MDTSpecial Weather StatementTFXLewis and Clark61 min
Jul 15, 12:28 AM MDTSpecial Weather StatementTFXBroadwater, Meagher62 min
Jul 15, 2:22 AM MDTSpecial Weather StatementTFXJudith Basin38 min
Jul 15, 11:19 AM MDTSpecial Weather StatementTFXCascade, Teton56 min
Jul 15, 11:49 AM MDTSpecial Weather StatementTFXBeaverhead41 min
Jul 15, 12:13 PM MDTSevere Thunderstorm WarningTFXCascade, Chouteau, Judith Basin, Meagher, Pondera, Teton62 min
Jul 15, 12:40 PM MDTSpecial Weather StatementTFXGallatin35 min
Jul 15, 12:43 PM MDTSpecial Weather StatementTFXPondera47 min
Jul 15, 12:54 PM MDTSevere Thunderstorm WarningTFXCascade, Chouteau, Fergus, Judith Basin, Meagher66 min
Jul 15, 1:11 PM MDTSpecial Weather StatementTFXMadison64 min
Jul 15, 1:12 PM MDTSevere Thunderstorm WarningTFXCascade, Chouteau, Judith Basin63 min
Jul 15, 1:59 PM MDTSpecial Weather StatementTFXFergus31 min
Jul 15, 2:12 PM MDTSevere Thunderstorm WarningTFXBlaine, Chouteau, Hill20 min
Jul 15, 2:21 PM MDTSpecial Weather StatementTFXFergus24 min
Jul 15, 2:41 PM MDTSpecial Weather StatementTFXMadison64 min
Jul 15, 2:43 PM MDTSpecial Weather StatementTFXFergus47 min
Jul 15, 3:14 PM MDTSpecial Weather StatementTFXBlaine61 min
Jul 15, 3:46 PM MDTSpecial Weather StatementTFX59 min
Jul 15, 4:47 PM MDTSpecial Weather StatementTFXJefferson43 min
Jul 15, 5:03 PM MDTSpecial Weather StatementTFXLiberty42 min
Jul 15, 5:37 PM MDTSpecial Weather StatementTFXMadison38 min

Nearby

Special Weather Statements in Montana, 2022Every special weather statement 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.