Alert archive / Montana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 49, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jul 5, 2000, 8:43 PM MDT for Chouteau County, Montana. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jul 5, 2000, 8:43 PM MDT (02:43 UTC)
- Expired
- Jul 5, 2000, 9:15 PM MDT
- In force
- 32 min
- Issued by
- NWS Great Falls, MT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Chouteau County, MT
The radar
The Great Falls radar (KTFX), 111 km from the middle of the area, began a volume at 02:45 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 5, 8:55 PM MDT | Hail 1.5 | Iliad, MT |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 2.7 hours before the alert went out and 256 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
- 1390 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1773 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.6
The text
As transmitted, in the capitals the NWS used until 2016.
784
WUUS55 KTFX 060244
SVRGTF
MTC015-060315-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREAT FALLS MT
843 PM MDT WED JUL 5 2000
THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CHOUTEAU COUNTY IN NORTH CENTRAL MONTANA
* UNTIL 915 PM MDT
* AT 835 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 8 MILES WEST OF MOCCASIN...OR ABOUT 29 MILES
EAST OF FORT BENTON...MOVING NORTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
4 MILES NORTHWEST OF ILIAD AT 900 PM MDT
REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN GREAT FALLS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT
THURSDAY MORNING FOR NORTHWESTERN MONTANA.
LAT...LON 4775 11029 4756 10994 4773 10985 4780 10960
4809 10991The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 7:29 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin | 31 min |
| Jul 5, 8:09 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 36 min |
| Jul 5, 8:16 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Meagher | 29 min |
| Jul 5, 8:27 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin | 33 min |
| Jul 5, 8:50 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin | 25 min |
| Jul 5, 8:54 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 36 min |
| Jul 5, 9:11 PM MDT | Tornado Warning | TFX | Cascade, Judith Basin | 34 min |
| Jul 5, 9:17 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Chouteau, Fergus | 28 min |
| Jul 5, 9:39 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 36 min |
| Jul 5, 9:44 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 31 min |
| Jul 5, 10:16 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 29 min |
| Jul 5, 10:20 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 40 min |
| Jul 5, 10:46 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 59 min |
| Jul 5, 11:07 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 38 min |
| Jul 6, 5:03 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Meagher | 42 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.