Alert archive / Montana / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 5, NWS Billings, MT

May 8, 2018Custer County, Montana

NWS Billings, MT issued this severe thunderstorm warning at May 8, 2018, 6:49 PM MDT for Custer County, Montana. It was in force for 26 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: May 8, 2018, 6:49 PM MDT (00:49 UTC)
Expired: May 8, 2018, 7:15 PM MDT
In force: 26 min
Issued by: NWS Billings, MT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Custer County, MT

The radar

The Glasgow radar (KGGW), 231 km from the middle of the area, began a volume at 00:48 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.

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.

In the hours before

Special weather statement, May 8, 6:29 PM MDT, 20 minutes before

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Special weather statement, May 8, 6:33 PM MDT, 16 minutes before

Special Weather Statement
National Weather Service Billings MT
633 PM MDT TUE MAY 8 2018

MTZ031-038-057-058-090130-
Southern Rosebud MT-Northern Rosebud MT-Northern Big Horn MT-
Southern Big Horn MT-
633 PM MDT TUE MAY 8 2018

...SIGNIFICANT WEATHER ADVISORY...

At 632 PM MDT, Doppler radar was tracking a strong thunderstorm 16
miles northwest of Busby, or 21 miles east of Hardin, moving
southeast at 35 mph.

Half inch hail and wind gusts up to 50 mph are possible with this
storm.

Locations impacted include...
Lame Deer, Busby and Northern Cheyenne Indian Reservation.

LAT...LON 4564 10726 4574 10729 4580 10725 4585 10717
      4578 10691 4568 10659 4562 10640 4533 10654
      4526 10685
TIME...MOT...LOC 0032Z 311DEG 32KT 4572 10716

Dobbs

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 6:29 PM MDT	Special Weather Statement	BYZ	Custer	61 min
May 8, 6:33 PM MDT	Special Weather Statement	BYZ	Big Horn	57 min
May 8, 7:10 PM MDT	Special Weather Statement	BYZ	Fallon	50 min
May 8, 7:28 PM MDT	Special Weather Statement	BYZ	Custer	47 min
May 8, 8:01 PM MDT	Special Weather Statement	BYZ	Carter	59 min
May 8, 8:10 PM MDT	Special Weather Statement	BYZ	Fallon	65 min
May 8, 9:58 PM MDT	Special Weather Statement	BYZ	Carter	32 min
May 9, 1:20 PM MDT	River Flood Watch	BYZ	Park	4 days
May 9, 5:33 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater	27 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; radar from the NEXRAD Level II archive.