Alert archive / Montana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 34, NWS Glasgow, MT

June 17, 2014Dawson County, Prairie County, Wibaux County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jun 17, 2014, 1:51 PM MDT for Dawson County, Prairie County, Wibaux 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 counties it named.

The facts

Issued: Jun 17, 2014, 1:51 PM MDT (19:51 UTC)
Expired: Jun 17, 2014, 2:45 PM MDT
In force: 54 min
Issued by: NWS Glasgow, MT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dawson County, MT, Prairie County, MT, Wibaux County, MT

The radar

The Glasgow radar (KGGW), 187 km from the middle of the area, began a volume at 19:54 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 17, 12:31 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 7.9 hours before the alert went out and 187 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: 1178 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 170 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 17, 8:58 AM MDT, 4 hours 53 minutes earlier.

Area forecast discussion, Jun 17, 8:58 AM MDT, 4 hours 53 minutes before

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Hazardous weather outlook, Jun 17, 1:07 PM MDT, 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
107 PM MDT TUE JUN 17 2014

MTZ016>021-059>062-180600-
CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-
DANIELS-SHERIDAN-WESTERN ROOSEVELT-PETROLEUM-NORTHERN PHILLIPS-
SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT-
107 PM MDT TUE JUN 17 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A LARGE AND STRONG STORM SYSTEM OVER THE WESTERN STATES WILL
SPREAD MODERATE TO HEAVY RAINFALL OVER MOST OF NORTHEAST MONTANA
THROUGH WEDNESDAY MORNING. AT THIS TIME FLOODING IS NOT
EXPECTED...HOWEVER SOME PONDING OF WATER OVER LOW LAND AREAS WILL
BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MTZ022>027-180600-
GARFIELD-MCCONE-RICHLAND-DAWSON-PRAIRIE-WIBAUX-
107 PM MDT TUE JUN 17 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A LARGE AND STRONG STORM SYSTEM OVER THE WESTERN STATES WILL
SPREAD MODERATE TO HEAVY RAINFALL OVER MOST OF NORTHEAST MONTANA
THROUGH WEDNESDAY MORNING. SOME STRONGER STORMS SOUTHEAST OF FORT
PECK LAKE THIS AFTERNOON AND EVENING MAY BECOME SEVERE WITH LARGE
HAIL AND DAMAGING WINDS BEING THE MAIN THREATS. A TORNADO WATCH IS
IN EFFECT THROUGH 8 PM MDT THIS EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jun 17, 7:58 AM MDT, 5 hours 53 minutes before

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Special weather statement, Jun 17, 8:42 AM MDT, 5 hours 9 minutes before

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Local storm report, Jun 17, 9:01 AM MDT, 4 hours 50 minutes before

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Special weather statement, Jun 17, 9:41 AM MDT, 4 hours 10 minutes before

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Special weather statement, Jun 17, 10:39 AM MDT, 3 hours 12 minutes before

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Special weather statement, Jun 17, 1:43 PM MDT, 8 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
Jun 16, 6:05 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone	55 min
Jun 16, 6:57 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	63 min
Jun 16, 7:57 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	63 min
Jun 17, 4:55 AM MDT	Severe Thunderstorm Warning	GGW	Garfield, Prairie	65 min
Jun 17, 6:21 AM MDT	Severe Thunderstorm Warning	GGW	McCone, Prairie	54 min
Jun 17, 7:43 AM MDT	Severe Thunderstorm Warning	GGW	McCone	62 min
Jun 17, 8:42 AM MDT	Special Weather Statement	GGW	McCone	63 min
Jun 17, 9:41 AM MDT	Special Weather Statement	GGW	Valley	64 min
Jun 17, 10:39 AM MDT	Special Weather Statement	GGW	Valley	66 min
Jun 17, 1:00 PM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Petroleum, Phillips, Valley	7 hr
Jun 17, 1:07 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie, Wibaux	53 min
Jun 17, 1:26 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Prairie	64 min
Jun 17, 1:43 PM MDT	Special Weather Statement	GGW	Dawson	62 min
Jun 17, 2:17 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie	58 min
Jun 17, 2:21 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone	54 min
Jun 17, 2:26 PM MDT	Special Weather Statement	GGW	McCone	64 min
Jun 17, 2:41 PM MDT	Special Weather Statement	GGW	Wibaux	64 min
Jun 17, 3:31 PM MDT	Special Weather Statement	GGW		59 min
Jun 17, 3:38 PM MDT	Flash Flood Warning	GGW	Dawson, Prairie	4 hr
Jun 17, 3:42 PM MDT	Special Weather Statement	GGW	Wibaux	63 min
Jun 17, 3:53 PM MDT	Severe Thunderstorm Warning	GGW	Dawson	67 min
Jun 17, 4:01 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Valley	59 min
Jun 17, 4:12 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie, Wibaux	63 min
Jun 17, 5:00 PM MDT	Special Weather Statement	GGW	Valley	60 min
Jun 17, 5:13 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Valley	62 min
Jun 17, 5:14 PM MDT	Special Weather Statement	GGW	Wibaux	61 min
Jun 17, 5:29 PM MDT	Areal Flood Advisory	GGW	Dawson	6 hr
Jun 17, 5:35 PM MDT	Areal Flood Advisory	GGW	Dawson, Prairie, Wibaux	6 hr
Jun 17, 5:56 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Valley	64 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.