Alert archive / Wyoming / Red Flag Warnings in 2015
Red Flag Warning 25, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Oct 9, 2015, 11:04 PM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Oct 10, 2015, 12:00 PM MDT. It was in force for 32 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
- Oct 9, 2015, 11:04 PM MDT (05:04 UTC)
- In effect from
- Oct 10, 2015, 12:00 PM MDT
- Expired
- Oct 11, 2015, 8:20 PM MDT
- In force
- 32 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 65 km from the middle of the area, began a volume at 05:06 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
Riverton, WY (KRIW), launched 00:00Z, 5.1 hours before the alert went out and 62 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
- 2592 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this red flag warning went out at Oct 9, 10:45 PM MDT, 19 minutes earlier.
Area forecast discussion, Oct 9, 10:45 PM MDT, 19 minutes before
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</html>Hazardous weather outlook, Oct 9, 1:41 PM MDT, 9 hours 23 minutes before
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</html>Nearby
Red Flag Warnings in Wyoming, 2015Every red flag warning in 2015
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.