Alert archive / Montana / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 124, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Aug 9, 2008, 3:35 PM MDT for 6 counties in Montana. It was in force for 55 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 9, 2008, 3:35 PM MDT (21:35 UTC)
- Expired
- Aug 9, 2008, 4:30 PM MDT
- In force
- 55 min
- Issued by
- NWS Great Falls, MT
- Area
- Storm-based polygon
Counties Cascade County, MT, Chouteau County, MT, Liberty County, MT, Pondera County, MT, Teton County, MT, Toole County, MT
The radar
The Great Falls radar (KTFX), 69 km from the middle of the area, began a volume at 21:36 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 |
|---|---|---|---|
| Aug 9, 12:16 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 9.6 hours before the alert went out and 96 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
- 69 J/kg
- Mixed-layer CIN
- -247 J/kg
- Mixed-layer LCL
- 2021 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- -21 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 9, 2:40 PM MDT, 55 minutes earlier.
Area forecast discussion, Aug 9, 2:40 PM MDT, 55 minutes before
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</html>Hazardous weather outlook, Aug 9, 5:15 AM MDT, 10 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 515 AM MDT SAT AUG 9 2008 MTZ008>015-044>055-101115- BEAVERHEAD-NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL- CASCADE-CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON- TOOLE-LIBERTY-EASTERN PONDERA-BLAINE- SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN-FERGUS- JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 515 AM MDT SAT AUG 9 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. SOME THUNDERSTORMS MAY BECOME STRONG WITH GUSTY WINDS...HEAVY RAIN AND HAIL. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Aug 9, 2:19 PM MDT, 1 hour 16 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 8, 6:22 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 53 min |
| Aug 9, 12:40 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Madison | 65 min |
| Aug 9, 1:15 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin, Madison | 46 min |
| Aug 9, 1:42 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 63 min |
| Aug 9, 2:00 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 45 min |
| Aug 9, 2:33 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 42 min |
| Aug 9, 2:34 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin, Madison | 56 min |
| Aug 9, 2:52 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Teton | 38 min |
| Aug 9, 2:54 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 66 min |
| Aug 9, 3:00 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Teton | 45 min |
| Aug 9, 3:31 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Pondera, Toole | 59 min |
| Aug 9, 3:59 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Madison | 46 min |
| Aug 9, 4:05 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 55 min |
| Aug 9, 4:44 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin, Madison | 61 min |
| Aug 9, 5:11 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 49 min |
| Aug 9, 5:51 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 54 min |
| Aug 9, 5:51 PM MDT | Severe Thunderstorm Warning | TFX | Madison | 39 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2008Every severe thunderstorm warning in 2008
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.