Alert archive / Montana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 1, NWS Glasgow, MT

April 18, 20144 counties in Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Apr 18, 2014, 6:26 PM MDT for 4 counties in Montana. It was in force for 64 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: Apr 18, 2014, 6:26 PM MDT (00:26 UTC)
Expired: Apr 18, 2014, 7:30 PM MDT
In force: 64 min
Issued by: NWS Glasgow, MT
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Garfield County, MT, McCone County, MT, Roosevelt County, MT, Valley County, MT

The radar

The Glasgow radar (KGGW), 51 km from the middle of the area, began a volume at 00:26 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, Apr 18, 6:15 PM MDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GLASGOW MT
615 PM MDT FRI APR 18 2014

MTZ022-023-026-190115-
GARFIELD-MCCONE-PRAIRIE-
615 PM MDT FRI APR 18 2014

THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN PRAIRIE COUNTY IN NORTHEAST MONTANA...
  MCCONE COUNTY IN NORTHEAST MONTANA...
  EASTERN GARFIELD COUNTY IN NORTHEAST MONTANA...

UNTIL 715 PM MDT.

AT 614 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES EAST OF HELL
CREEK REC AREA TO 11 MILES SOUTH OF HILLSIDE...AND MOVING EAST AT 40
MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS.

LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...CIRCLE...
HILLSIDE...ROCK CREEK REC AREA...FLOWING WELLS REST AREA...NELSON
CREEK REC AREA AND BROCKWAY.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 4667 10559 4683 10563 4683 10583 4686 10585
      4684 10658 4774 10686 4773 10674 4777 10671
      4792 10568 4667 10532
TIME...MOT...LOC 0015Z 269DEG 36KT 4766 10669 4675 10640

RJM
WEATHER.GOV/GLASGOW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 18, 6:15 PM MDT	Special Weather Statement	GGW	McCone, Prairie	60 min
Apr 18, 7:36 PM MDT	Special Weather Statement	GGW	Daniels, McCone, Roosevelt	39 min

Nearby

Severe Thunderstorm Warnings in Montana, 2014 Every severe thunderstorm warning in 2014

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.