Alert archive / Montana / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 13, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jun 6, 2004, 4:09 AM MDT for Chouteau County, Hill County, Montana. It was in force for 21 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 6, 2004, 4:09 AM MDT (10:09 UTC)
- Expired
- Jun 6, 2004, 4:30 AM MDT
- In force
- 21 min
- Issued by
- NWS Great Falls, MT
- Area
- Counties, with a storm outline in the text
Counties Chouteau County, MT, Hill County, MT
The radar
The Great Falls radar (KTFX), 107 km from the middle of the area, began a volume at 10:08 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, 10.2 hours before the alert went out and 82 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
- 537 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 2966 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KTFX 061009 SVRTFX MTC015-041-061030- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREAT FALLS MT 407 AM MDT SUN JUN 6 2004 THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL CHOUTEAU COUNTY IN NORTH CENTRAL MONTANA SOUTH CENTRAL HILL COUNTY IN NORTH CENTRAL MONTANA * UNTIL 430 AM MDT * AT 403 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTH CENTRAL CHOUTEAU COUNTY...OR ABOUT 17 MILES WEST OF BIG SANDY...MOVING NORTHEAST AT 20 MPH. HAIL...INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN GREAT FALLS. LAT...LON 4815 11067 4800 11041 4825 11009 4838 11034 $$
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 6:25 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 50 min |
| Jun 5, 6:44 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Judith Basin | 61 min |
| Jun 5, 7:13 PM MDT | Severe Thunderstorm Warning | TFX | Hill, Liberty | 47 min |
| Jun 5, 7:35 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 55 min |
| Jun 5, 7:43 PM MDT | Tornado Warning | TFX | Judith Basin | 32 min |
| Jun 5, 8:11 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 49 min |
| Jun 5, 8:14 PM MDT | Tornado Warning | TFX | Judith Basin | 31 min |
| Jun 5, 8:24 PM MDT | Tornado Warning | TFX | Fergus | 36 min |
| Jun 5, 8:58 PM MDT | Tornado Warning | TFX | Fergus | 32 min |
| Jun 5, 9:27 PM MDT | Tornado Warning | TFX | Fergus | 33 min |
| Jun 6, 3:48 AM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark, Teton | 27 min |
| Jun 6, 4:17 AM MDT | Severe Thunderstorm Warning | TFX | Cascade | 28 min |
| Jun 6, 4:54 AM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin | 36 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2004Every severe thunderstorm warning in 2004
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.