Alert archive / Montana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 21, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jun 9, 2000, 6:18 PM MDT for Big Horn County, Powder River County, Montana; Sheridan County, Wyoming. It was in force for 57 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
- Jun 9, 2000, 6:18 PM MDT (00:18 UTC)
- Expired
- Jun 9, 2000, 7:15 PM MDT
- In force
- 57 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
Counties Big Horn County, MT, Powder River County, MT, Sheridan County, WY
The radar
The Billings radar (KBLX), 168 km from the middle of the area, began a volume at 00:18 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 |
|---|---|---|---|
| Jun 9, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 0.3 hours before the alert went out and 275 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
- 40 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 2557 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS55 KBYZ 100022 COR
SVRBIL
MTC003-075-WYC033-100115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED FOR WYOMING CODES
NATIONAL WEATHER SERVICE BILLINGS MT
618 PM MDT FRI JUN 9 2000
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN POWDER RIVER COUNTY IN SOUTHEAST MONTANA
NORTHEASTERN SHERIDAN COUNTY IN NORTH CENTRAL WYOMING
EXTREME SOUTHEASTERN BIG HORN COUNTY IN SOUTH CENTRAL MONTANA
* UNTIL 715 PM MDT
* AT 618 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 12 MILES
SOUTHWEST OF QUIETAS...OR ABOUT 30 MILES NORTHEAST OF SHERIDAN...
MOVING NORTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
SOUTHEASTERN BIG HORN...NORTHEASTERN SHERIDAN...SOUTHWESTERN POWDER
RIVER...WESTERN POWDER RIVER AND CENTRAL POWDER RIVER COUNTIES.y
$$
LAT...LON 4504 10650 4488 10651 4489 10618 4533 10557
4534 10600
WCJIN-WYNE-WYNW
MIDDENDORFThe office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 7:34 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 56 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2000Severe Thunderstorm Warnings in Wyoming, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.