Alert archive / Wyoming / Red Flag Warnings in 2020
Red Flag Warning 16, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Aug 28, 2020, 3:11 PM MDT for 7 counties in Wyoming. It took effect at Aug 29, 2020, 12:00 PM MDT. It was in force for 33 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 28, 2020, 3:11 PM MDT (21:11 UTC)
- In effect from
- Aug 29, 2020, 12:00 PM MDT
- Expired
- Aug 30, 2020, 9:00 PM MDT
- In force
- 33 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Lincoln County, WY, Natrona County, WY, Sublette County, WY, Sweetwater County, WY, Teton County, WY, Uinta County, WY
The radar
The Riverton/Lander radar (KRIW), 96 km from the middle of the area, began a volume at 21:13 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
Salt Lake City I, UT (KSLC), launched 12:00Z, 9.2 hours before the alert went out and 285 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
- 2472 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 6:03 PM MDT | Special Weather Statement | RIW | Park | 42 min |
| Aug 27, 6:13 PM MDT | Special Weather Statement | RIW | Johnson | 47 min |
| Aug 28, 1:59 AM MDT | Fire Weather Watch | RIW | Fremont, Lincoln, Sublette, Sweetwater, Teton, Uinta | 13 hr |
Nearby
Red Flag Warnings in Wyoming, 2020Every red flag warning in 2020
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.