Alert archive / Montana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 9, NWS Glasgow, MT

May 26, 2014Prairie County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at May 26, 2014, 7:16 PM MDT for Prairie County, Montana. It was in force for 59 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 26, 2014, 7:16 PM MDT (01:16 UTC)
Expired: May 26, 2014, 8:15 PM MDT
In force: 59 min
Issued by: NWS Glasgow, MT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Prairie County, MT

The radar

The Glasgow radar (KGGW), 176 km from the middle of the area, began a volume at 01:19 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.3 hours before the alert went out and 356 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: 283 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1448 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 May 26, 2:38 PM MDT, 4 hours 38 minutes earlier.

Area forecast discussion, May 26, 2:38 PM MDT, 4 hours 38 minutes before

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Hazardous weather outlook, May 26, 3:26 AM MDT, 15 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
326 AM MDT MON MAY 26 2014

MTZ019-020-023>027-062-270900-
SHERIDAN-WESTERN ROOSEVELT-MCCONE-RICHLAND-DAWSON-PRAIRIE-WIBAUX-
EASTERN ROOSEVELT-
326 AM MDT MON MAY 26 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND PERSIST
THROUGH THE EVENING HOURS. SOME OF THE STRONGER STORMS MAY PRODUCE
CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND SMALL HAIL
ESPECIALLY NEAR THE BORDER WITH NORTH DAKOTA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

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, May 26, 2:57 PM MDT, 4 hours 19 minutes before

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Local storm report, May 26, 3:20 PM MDT, 3 hours 56 minutes before

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Special weather statement, May 26, 3:29 PM MDT, 3 hours 47 minutes before

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Local storm report, May 26, 4:30 PM MDT, 2 hours 46 minutes before

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Local storm report, May 26, 4:56 PM MDT, 2 hours 20 minutes before

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Special weather statement, May 26, 4:57 PM MDT, 2 hours 19 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 26, 6:59 PM MDT	Special Weather Statement	GGW	Prairie	61 min
May 26, 9:18 PM MDT	Special Weather Statement	GGW	Wibaux	57 min
May 27, 12:45 AM MDT	Special Weather Statement	GGW	Prairie	60 min
May 27, 2:45 PM MDT	Flash Flood Watch	GGW	Daniels, Sheridan	37 hr
May 27, 2:47 PM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Petroleum, Phillips, Valley	30 hr

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.