Alert archive / Montana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 112, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Aug 11, 2000, 8:16 PM MDT for Carter County, Montana. It was in force for 59 min. 2 reports 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
- Aug 11, 2000, 8:16 PM MDT (02:16 UTC)
- Expired
- Aug 11, 2000, 9:15 PM MDT
- In force
- 59 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Carter County, MT
The radar
The Rapid City radar (KUDX), 205 km from the middle of the area, began a volume at 02:18 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 11, 9:12 PM MDT | Thunderstorm Wind 60 M | Ekalaka, MT | 60 mph thunderstorm wind gust |
| Aug 11, 9:25 PM MDT | Hail 0.75 | Albion, 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
Rapid City, SD (KUNR), launched 00:00Z, 2.3 hours before the alert went out and 207 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
- 795 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 3260 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Billings, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 3:00 PM MDT, 5 hours 16 minutes earlier.
Area forecast discussion, Aug 11, 3:00 PM MDT, 5 hours 16 minutes before
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</html>The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 9:16 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 29 min |
| Aug 11, 9:45 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 60 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.