Alert archive / Wyoming / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 20, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jun 22, 1996, 2:58 PM MDT for Big Horn County, Wyoming. It was in force for 37 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 22, 1996, 2:58 PM MDT (20:58 UTC)
- Expired
- Jun 22, 1996, 3:35 PM MDT
- In force
- 37 min
- Issued by
- NWS Riverton, WY
- Area
- Whole counties
County Big Horn County, WY
The radar
The Billings radar (KBLX), 155 km from the middle of the area, began a volume at 21:04 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 nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 9.0 hours before the alert went out and 410 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 934 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 426 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
In the hours before
Special weather statement, Jun 22, 11:53 AM MDT, 3 hours 5 minutes before
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</html>The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 6:14 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln | 61 min |
| Jun 21, 7:08 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln | 42 min |
| Jun 21, 7:30 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln, Teton | 60 min |
| Jun 21, 8:11 PM MDT | Severe Thunderstorm Warning | RIW | Park, Teton | 49 min |
| Jun 21, 8:26 PM MDT | Severe Thunderstorm Warning | RIW | Teton | 64 min |
| Jun 21, 9:20 PM MDT | Severe Thunderstorm Warning | RIW | Teton | 30 min |
| Jun 22, 3:16 AM MDT | Severe Thunderstorm Warning | RIW | Park | 44 min |
| Jun 22, 12:03 PM MDT | Severe Thunderstorm Warning | RIW | Sweetwater | 62 min |
| Jun 22, 12:47 PM MDT | Severe Thunderstorm Warning | RIW | Park | 58 min |
| Jun 22, 1:49 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 56 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 1996Every severe thunderstorm warning in 1996
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.