Alert archive / Montana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 92, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jul 23, 2000, 9:46 PM MDT for Powder River County, Montana. It was in force for 59 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
- Jul 23, 2000, 9:46 PM MDT (03:46 UTC)
- Expired
- Jul 23, 2000, 10:45 PM MDT
- In force
- 59 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Powder River County, MT
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.8 hours before the alert went out and 323 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
- 1642 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 3058 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
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 Jul 23, 8:15 PM MDT, 1 hour 31 minutes earlier.
Area forecast discussion, Jul 23, 8:15 PM MDT, 1 hour 31 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BILLINGS MT 815 PM MDT SUN JUL 23 2000 .MON AND TUE... UPDATES FORTHCOMING. STRONG THUNDERSTORMS ARE PRESENTLY OVER BIG HORN COUNTY AND ARE SHOWING SIGNS OF TURNING RIGHT. WILL BE RECONFIGURING THE ZONES FOR SEVERE STORMS IN A LARGER AREA. WILL ALSO KEEP A MENTION OF ISOLATED STORMS FROM BILLINGS WEST...BUT THESE SHOULD PETER OUT BEFORE MIDNIGHT. CHB .WED...THU...AND FRI... RIDGE SLOWLY SHIFTS EASTWARD ON WED WITH DISTURBANCES MOVING THROUGH OVERALL FLOW ON THU AND FRI WITH THUNDERSTORMS DEVELOPING LATE IN THE DAY THU AND FRI. MAIN ACTIVITY WILL BE CONFINED TO THE SOUTHEAST CORNER ON FRI...AFTER RIDGE HAS SHIFTED AND THICKNESS VALUES HAVE FALLEN. WILL TREND TEMPS ON A DOWNWARD PATTERN AFTER WED...YET KEEP READINGS AROUND NORMAL. SPRINGER BIL BBBTT 060/086 059/088 056/089 059/086 059/086 522000 54 LVM BBBTT 053/083 052/086 053/085 055/085 055/085 522000 54 HDN BBBTT 058/088 057/090 055/090 057/088 057/088 524000 54 MLS BBBTT 064/087 061/089 059/089 059/089 062/086 524000 54 4BQ BBBTT 061/085 059/087 056/090 058/090 058/088 524000 54 BHK BBBTT 058/082 051/085 055/088 057/088 057/085 524200 54 SHR BBBTT 055/086 053/088 054/089 054/089 054/087 523000 54
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 6:43 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Stillwater, Yellowstone | 62 min |
| Jul 23, 7:45 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure, Yellowstone | 60 min |
| Jul 23, 8:50 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 60 min |
| Jul 23, 8:53 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 52 min |
| Jul 23, 9:10 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River, Rosebud | 65 min |
| Jul 23, 10:47 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 58 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; the sounding from the Mesonet's radiosonde archive.