Alert archive / Montana / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 35, NWS Glasgow, MT

June 1, 2018Richland County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jun 1, 2018, 3:27 PM MDT for Richland County, Montana. It was in force for 48 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: Jun 1, 2018, 3:27 PM MDT (21:27 UTC)
Expired: Jun 1, 2018, 4:15 PM MDT
In force: 48 min
Issued by: NWS Glasgow, MT
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Richland County, MT

The radar

The Glasgow radar (KGGW), 160 km from the middle of the area, began a volume at 21:27 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.

Issued	Product	Office	Lasted
Jun 1, 11:45 AM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 9.5 hours before the alert went out and 159 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1358 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 1, 3:23 PM MDT, 4 minutes earlier.

Area forecast discussion, Jun 1, 3:23 PM MDT, 4 minutes before

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In the hours before

Local storm report, Jun 1, 1:57 PM MDT, 1 hour 30 minutes before

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Local storm report, Jun 1, 2:00 PM MDT, 1 hour 27 minutes before

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Local storm report, Jun 1, 2:03 PM MDT, 1 hour 24 minutes before

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Local storm report, Jun 1, 2:27 PM MDT, 1 hour before

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Local storm report, Jun 1, 2:33 PM MDT, 54 minutes before

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Local storm report, Jun 1, 2:48 PM MDT, 39 minutes before

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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 31, 7:49 PM MDT	Special Weather Statement	GGW	Garfield	56 min
May 31, 9:08 PM MDT	Special Weather Statement	GGW	Garfield	52 min
Jun 1, 2:22 AM MDT	Special Weather Statement	GGW	Prairie	23 min
Jun 1, 2:38 AM MDT	Special Weather Statement	GGW	Prairie	37 min
Jun 1, 3:06 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Petroleum, Phillips, Valley	40 hr
Jun 1, 3:14 AM MDT	Special Weather Statement	GGW	Dawson	46 min
Jun 1, 1:16 PM MDT	Special Weather Statement	GGW	Prairie	59 min
Jun 1, 1:37 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Prairie	53 min
Jun 1, 2:15 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Prairie	60 min
Jun 1, 4:03 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt, Sheridan	57 min

Nearby

Severe Thunderstorm Warnings in Montana, 2018 Every severe thunderstorm warning in 2018

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.