Alert archive / Montana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 13, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jun 27, 2001, 10:00 PM MDT for Fergus County, Judith Basin County, Montana. It was in force for 45 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
- Jun 27, 2001, 10:00 PM MDT (04:00 UTC)
- Expired
- Jun 27, 2001, 10:45 PM MDT
- In force
- 45 min
- Issued by
- NWS Great Falls, MT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Fergus County, MT, Judith Basin County, MT
The radar
The Great Falls radar (KTFX), 138 km from the middle of the area, began a volume at 04:02 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 |
|---|---|---|---|
| Jun 27, 10:10 PM MDT | Hail 0.75 | Moore, MT | Actual spotter location is Moore 5 W. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 27, 7:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 4.0 hours before the alert went out and 85 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
- 1392 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 2183 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KTFX 280404 SVRGTF MTC027-045-280445- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREAT FALLS MT 1000 PM MDT WED JUN 27 2001 THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN FERGUS COUNTY IN CENTRAL MONTANA EAST CENTRAL JUDITH BASIN COUNTY IN CENTRAL MONTANA * UNTIL 1045 PM MDT * AT 957 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER MOORE...OR ABOUT 18 MILES SOUTHWEST OF LEWISTOWN...MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... OVER MOORE AT 1005 PM MDT 4 MILES NORTHWEST OF LEWISTOWN AT 1040 PM MDT THIS STORM IS MOVING VERY SLOWLY AND IS PRODUCING HEAVY RAIN. ONE TO TWO INCHES OF RAIN IN AN HOUR AND GUSTY WINDS HAVE BEEN REPORTED WITH THIS STORM. 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 100 AM MDT THURSDAY MORNING FOR NORTH CENTRAL MONTANA. LAT...LON 4694 10995 4681 10976 4715 10916 4734 10949 -
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 6:30 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin | 45 min |
| Jun 27, 7:27 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus, Judith Basin | 48 min |
| Jun 27, 9:09 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 51 min |
| Jun 27, 11:14 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 46 min |
| Jun 28, 12:14 AM MDT | Flash Flood Warning | TFX | Chouteau, Fergus, Judith Basin | 4 hr |
| Jun 28, 12:34 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 41 min |
| Jun 28, 1:45 AM MDT | Severe Thunderstorm Warning | TFX | Meagher | 30 min |
| Jun 28, 2:56 AM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 49 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2001Every severe thunderstorm warning in 2001
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.