Alert archive / Montana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 252, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jul 25, 2001, 7:30 PM MDT for Rosebud County, Montana. It was in force for 30 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 25, 2001, 7:30 PM MDT (01:30 UTC)
- Expired
- Jul 25, 2001, 8:00 PM MDT
- In force
- 30 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Rosebud County, MT
The radar
The Billings radar (KBLX), 151 km from the middle of the area, began a volume at 01:34 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 25, 8:10 PM MDT | Hail 0.75 | Ashland, 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, 1.5 hours before the alert went out and 221 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
- 633 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1657 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KBYZ 260134 SVRBIL MTC087-260200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BILLINGS MT 730 PM MDT WED JUL 25 2001 THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN ROSEBUD COUNTY IN SOUTHEAST MONTANA * UNTIL 800 PM MDT * AT 730 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL NEAR ASHLAND...OR ABOUT 20 MILES SOUTHEAST OF COLSTRIP...MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ASHLAND AT 740 PM MDT. THIS SEVERE THUNDERSTORM WARNING REPLACES THE WARNING ISSUED EARLIER. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...MOVE TO A SUBSTANTIAL SHELTER NOW! A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. $$ CANEPA LAT...LON 4565 10655 4552 10636 4562 10626 4580 10630
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 6:42 PM MDT | Tornado Warning | BYZ | Fallon | 63 min |
| Jul 25, 7:00 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| Jul 25, 7:45 PM MDT | Tornado Warning | BYZ | Fallon | 55 min |
| Jul 25, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jul 26, 11:00 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 60 min |
| Jul 26, 12:00 PM MDT | Flash Flood Warning | BYZ | Golden Valley | 3 hr |
| Jul 26, 12:00 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 60 min |
| Jul 26, 12:42 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 26, 12:59 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 61 min |
| Jul 26, 1:46 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 59 min |
| Jul 26, 2:26 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 64 min |
| Jul 26, 2:30 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jul 26, 3:12 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 26, 3:27 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 93 min |
| Jul 26, 3:30 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jul 26, 3:34 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 56 min |
| Jul 26, 3:37 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 53 min |
| Jul 26, 4:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 26, 5:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 26, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 57 min |
| Jul 26, 5:52 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 58 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.