Alert archive / Wyoming / Red Flag Warnings in 2018
Red Flag Warning 12, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Aug 24, 2018, 1:16 PM MDT for 6 counties in Wyoming. It was in force for 56 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 24, 2018, 1:16 PM MDT (19:16 UTC)
- Expired
- Aug 26, 2018, 9:00 PM MDT
- In force
- 56 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Johnson County, WY, Lincoln County, WY, Natrona County, WY, Sublette County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 32 km from the middle of the area, began a volume at 19:18 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 nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 7.3 hours before the alert went out and 34 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
- 2956 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 28 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 Aug 23, 5:35 PM MDT, 19 hours 41 minutes earlier.
Area forecast discussion, Aug 23, 5:35 PM MDT, 19 hours 41 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 1:08 PM MDT | Special Weather Statement | RIW | Sweetwater | 37 min |
| Aug 24, 1:16 PM MDT | Red Flag Warning | RIW | Lincoln, Sublette, Sweetwater, Uinta | 56 hr |
| Aug 24, 1:39 PM MDT | Special Weather Statement | RIW | Sweetwater | 36 min |
| Aug 24, 2:13 PM MDT | Special Weather Statement | RIW | 32 min | |
| Aug 24, 2:49 PM MDT | Special Weather Statement | RIW | 26 min | |
| Aug 24, 2:56 PM MDT | Special Weather Statement | RIW | Sweetwater | 34 min |
| Aug 24, 3:24 PM MDT | Special Weather Statement | RIW | 36 min | |
| Aug 24, 3:36 PM MDT | Special Weather Statement | RIW | 24 min | |
| Aug 24, 3:38 PM MDT | Special Weather Statement | RIW | Sublette | 37 min |
| Aug 24, 4:01 PM MDT | Special Weather Statement | RIW | Fremont | 29 min |
| Aug 24, 4:36 PM MDT | Special Weather Statement | RIW | Fremont | 24 min |
| Aug 24, 4:43 PM MDT | Special Weather Statement | RIW | 32 min | |
| Aug 24, 4:50 PM MDT | Special Weather Statement | RIW | Fremont | 40 min |
| Aug 24, 5:03 PM MDT | Special Weather Statement | RIW | 27 min | |
| Aug 24, 5:37 PM MDT | Special Weather Statement | RIW | 23 min | |
| Aug 24, 5:51 PM MDT | Special Weather Statement | RIW | 39 min | |
| Aug 24, 5:52 PM MDT | Special Weather Statement | RIW | 38 min |
Nearby
Red Flag Warnings in Wyoming, 2018Every red flag warning in 2018
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.