Alert archive / Montana / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 63, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Aug 5, 2004, 10:15 PM MDT for McCone County, Montana. It was in force for 60 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 5, 2004, 10:15 PM MDT (04:15 UTC)
- Expired
- Aug 5, 2004, 11:15 PM MDT
- In force
- 60 min
- Issued by
- NWS Glasgow, MT
- Area
- Counties, with a storm outline in the text
County McCone County, MT
The radar
The Glasgow radar (KGGW), 88 km from the middle of the area, began a volume at 04:18 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 5, 5:05 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 4.3 hours before the alert went out and 361 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3430 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 236 m²/s²
- 0-3 km storm-relative helicity
- 120 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 Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 5, 9:02 PM MDT, 1 hour 13 minutes earlier.
Area forecast discussion, Aug 5, 9:02 PM MDT, 1 hour 13 minutes before
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</html>Hazardous weather outlook, Aug 5, 5:26 AM MDT, 16 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 526 AM MDT THU AUG 5 2004 MTZ016>027-059>062-061200- CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-DANIELS- DAWSON-EASTERN ROOSEVELT-GARFIELD-MCCONE-NORTHERN PHILLIPS- NORTHERN VALLEY-PETROLEUM-PRAIRIE-RICHLAND-SHERIDAN- SOUTHWEST PHILLIPS-WESTERN ROOSEVELT-WIBAUX- 526 AM MDT THU AUG 5 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA .DAY ONE... A LAKE WIND ADVISORY IS IN EFFECT FOR FORT PECK LAKE THROUGH THIS EVENING. REFER TO GTFNPWGGW OR WWUS75 KGGW FOR MORE INFORMATION. UNSTABLE AIR COMBINED WITH A COLD FRONT MOVING ACROSS NORTHEAST MONTANA WILL BRING THE POSSIBILITY OF SEVERE THUNDERSTORMS STARTING LATE THIS AFTERNOON AND CONTINUING THROUGH TONIGHT. THE MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WINDS. .DAYS TWO THROUGH SEVEN... A STRONG COLD FRONT IS EXPECTED TO MOVE ACROSS NORTHEAST MONTANA LATE FRIDAY NIGHT OR SATURDAY MORNING BRINGING A CHANCE FOR MORE THUNDERSTORMS. .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 5, 9:56 PM MDT, 19 minutes before
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</html>Local storm report, Aug 5, 10:09 PM MDT, 6 minutes before
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</html>The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 7:32 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 58 min |
| Aug 5, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 64 min |
| Aug 5, 9:33 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 57 min |
| Aug 5, 9:38 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 52 min |
| Aug 5, 10:31 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Valley | 59 min |
| Aug 6, 12:26 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 64 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.