Alert archive / Montana / Special Weather Statements in 2023

Special Weather Statement, NWS Glasgow, MT

May 25, 2023Roosevelt County, Montana

NWS Glasgow, MT issued this special weather statement at May 25, 2023, 9:10 PM MDT for Roosevelt County, Montana. It was in force for 65 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: May 25, 2023, 9:10 PM MDT (03:10 UTC)
Expired: May 25, 2023, 10:15 PM MDT
In force: 65 min
Issued by: NWS Glasgow, MT
Hail: 0.25 in
Wind: 30

County Roosevelt County, MT

The radar

The Glasgow radar (KGGW), 108 km from the middle of the area, began a volume at 03:10 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

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.2 hours before the alert went out and 106 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: 338 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1585 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Glasgow, MT wrote its last area forecast discussion before this special weather statement went out at May 25, 3:11 PM MDT, 5 hours 59 minutes earlier.

Area forecast discussion, May 25, 3:11 PM MDT, 5 hours 59 minutes before

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In the hours before

Special weather statement, May 25, 6:50 PM MDT, 2 hours 20 minutes before

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Special weather statement, May 25, 7:35 PM MDT, 1 hour 35 minutes before

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Local storm report, May 25, 8:02 PM MDT, 1 hour 8 minutes before

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Special weather statement, May 25, 8:22 PM MDT, 48 minutes before

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Special weather statement, May 25, 8:27 PM MDT, 43 minutes before

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Special weather statement, May 25, 9:10 PM MDT, 0 minutes before

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The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 6:27 PM MDT	Special Weather Statement	GGW	Wibaux	63 min
May 25, 6:50 PM MDT	Special Weather Statement	GGW	Petroleum, Phillips	55 min
May 25, 7:14 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum, Phillips	61 min
May 25, 7:35 PM MDT	Special Weather Statement	GGW	Dawson, Prairie, Wibaux	55 min
May 25, 7:35 PM MDT	Severe Thunderstorm Warning	GGW	Richland	38 min
May 25, 7:49 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	56 min
May 25, 8:17 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	58 min
May 25, 8:22 PM MDT	Special Weather Statement	GGW	Garfield, Phillips	53 min
May 25, 8:27 PM MDT	Special Weather Statement	GGW	Valley	63 min
May 25, 9:23 PM MDT	Special Weather Statement	GGW	Garfield, McCone, Valley	67 min
May 25, 10:37 PM MDT	Special Weather Statement	GGW	Daniels, McCone, Roosevelt, Sheridan, Valley	53 min
May 25, 11:29 PM MDT	Special Weather Statement	GGW	Daniels, Valley	61 min
May 25, 11:59 PM MDT	Areal Flood Advisory	GGW	Garfield, McCone, Prairie, Roosevelt, Valley	10 hr
May 26, 5:12 PM MDT	Special Weather Statement	GGW	Wibaux	63 min

Nearby

Special Weather Statements in Montana, 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.