Alert archive / Montana / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 114, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Aug 29, 2013, 11:28 PM MDT for Blaine County, Montana. It was in force for 47 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
- Aug 29, 2013, 11:28 PM MDT (05:28 UTC)
- Expired
- Aug 30, 2013, 12:15 AM MDT
- In force
- 47 min
- Issued by
- NWS Great Falls, MT
- Area
- Storm-based polygon
County Blaine County, MT
The radar
The Glasgow radar (KGGW), 174 km from the middle of the area, began a volume at 05:32 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
Great_falls, MT (KTFX), launched 00:00Z, 5.5 hours before the alert went out and 163 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.
- Mixed-layer CAPE
- 15 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 3450 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Great Falls, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 29, 10:55 PM MDT, 33 minutes earlier.
Area forecast discussion, Aug 29, 10:55 PM MDT, 33 minutes before
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</html>Hazardous weather outlook, Aug 29, 1:19 PM MDT, 10 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GREAT FALLS MT 119 PM MDT THU AUG 29 2013 MTZ008-014-015-052>055-301930- BEAVERHEAD-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-JEFFERSON- BROADWATER-MEAGHER-GALLATIN- 119 PM MDT THU AUG 29 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...THIS AFTERNOON AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER FOR TONIGHT IS LOW. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS THE POTENTIAL FOR CRITICAL FIRE WEATHER CONDITIONS ON FRIDAY OVER PORTIONS OF SOUTHWEST MONTANA. THUS FIRE WEATHER HIGHLIGHTS HAVE BEEN ISSUED FOR PORTIONS OF SOUTHWEST MONTANA FOR FRIDAY AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... ANY SPOTTER REPORTS OF ANY NEW FIRE ACTIVITY WOULD GREATLY BE APPRECIATED. MTZ009>013-044>051-301930- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE- CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-BLAINE- SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN-FERGUS- 119 PM MDT THU AUG 29 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND NORTH CENTRAL MONTANA. .DAY ONE...THIS AFTERNOON AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Local storm report, Aug 29, 11:04 PM MDT, 24 minutes before
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</html>Local storm report, Aug 29, 11:09 PM MDT, 19 minutes before
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</html>Local storm report, Aug 29, 11:11 PM MDT, 17 minutes before
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</html>Local storm report, Aug 29, 11:14 PM MDT, 14 minutes before
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</html>Local storm report, Aug 29, 11:19 PM MDT, 9 minutes before
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</html>Local storm report, Aug 29, 11:21 PM MDT, 7 minutes before
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</html>The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:33 PM MDT | Special Weather Statement | TFX | Glacier, Liberty, Pondera, Teton, Toole | 42 min |
| Aug 29, 7:38 PM MDT | Special Weather Statement | TFX | Cascade | 52 min |
| Aug 29, 8:27 PM MDT | Special Weather Statement | TFX | Chouteau, Hill | 48 min |
| Aug 29, 8:29 PM MDT | Special Weather Statement | TFX | Broadwater, Jefferson | 46 min |
| Aug 29, 9:14 PM MDT | Special Weather Statement | TFX | Broadwater, Meagher | 46 min |
| Aug 29, 9:16 PM MDT | Special Weather Statement | TFX | Blaine, Hill | 74 min |
| Aug 29, 9:32 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Hill | 43 min |
| Aug 29, 9:50 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Chouteau, Hill | 55 min |
| Aug 29, 10:06 PM MDT | Special Weather Statement | TFX | Judith Basin, Meagher | 39 min |
| Aug 30, 4:17 AM MDT | Red Flag Warning | TFX | Broadwater, Gallatin, Jefferson, Lewis and Clark, Meagher | 17 hr |
| Aug 30, 3:15 PM MDT | Special Weather Statement | TFX | Fergus | 30 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2013Every severe thunderstorm warning in 2013
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.