Alert archive / Nebraska / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 55, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 1, 2019, 2:58 PM MDT for Dawes County, Sioux County, Nebraska. It was in force for 47 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 1, 2019, 2:58 PM MDT (20:58 UTC)
- Expired
- Jun 1, 2019, 3:45 PM MDT
- In force
- 47 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Dawes County, NE, Sioux County, NE
The radar
The Rapid City radar (KUDX), 176 km from the middle of the area, began a volume at 21:01 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
Denver, CO (KDEN), launched 12:00Z, 9.0 hours before the alert went out and 305 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
- 1243 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 2:57 PM MDT, 1 minute earlier.
Area forecast discussion, Jun 1, 2:57 PM MDT, 1 minute 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>Hazardous weather outlook, Jun 1, 2:19 PM MDT, 39 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 219 PM MDT Sat Jun 1 2019 NEZ019>021-054-055-096-WYZ106>108-116>119-022030- Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-South Sioux- Central Laramie Range and Southwest Platte County- East Platte County-Goshen County-South Laramie Range- South Laramie Range Foothills-Central Laramie County- East Laramie County- 219 PM MDT Sat Jun 1 2019 This hazardous weather outlook is for portions of western Nebraska and southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT Thunderstorms are likely with a few severe storms possible. Hail up to quarter size is the main threat. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Severe storms are expected tomorrow afternoon with the main threats being large hail and damaging winds. Hail could be up to tennis ball size in stronger storms. .Spotter information statement... Spotter activation will be needed Sunday afternoon and evening. NEZ002-003-095-WYZ101>103-115-022030- Dawes-Box Butte-North Sioux-Converse County Lower Elevations- Niobrara County-North Laramie Range-Laramie Valley- 219 PM MDT Sat Jun 1 2019 This hazardous weather outlook is for portions of western Nebraska...east central Wyoming and southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT A few thunderstorms are possible this afternoon. Severe threat is low but cannot be ruled out completely. Main concern is hail up to quarter size. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Severe thunderstorms are expected Sunday afternoon with the main threats being large hail and damaging winds. Hail up to tennis ball size is possible. .Spotter information statement... Spotter activation will be needed Sunday afternoon and evening. WYZ104-105-109>114-022030- Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Carbon County-North Snowy Range Foothills- Southwest Carbon County-Sierra Madre Range- Upper North Platte River Basin-Snowy Range- 219 PM MDT Sat Jun 1 2019 This hazardous weather outlook is for portions of south central Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT A few thunderstorms are possible this afternoon and evening. The severe threat is low for areas west of the Laramie Range. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Thunderstorms are possible tomorrow afternoon and evening. The severe threat is low west of the Laramie Range, but hail up to quarter size cannot be ruled out. .Spotter information statement... Spotter activation may be needed Sunday afternoon and evening.
In the hours before
Special weather statement, Jun 1, 1:11 PM MDT, 1 hour 47 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>Special weather statement, Jun 1, 2:16 PM MDT, 42 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 Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 8:27 PM MDT | Special Weather Statement | CYS | Laramie | 33 min |
| May 31, 8:59 PM MDT | Special Weather Statement | CYS | Laramie | 31 min |
| May 31, 9:13 PM MDT | Special Weather Statement | CYS | Platte | 32 min |
| May 31, 9:41 PM MDT | Special Weather Statement | CYS | Platte | 34 min |
| Jun 1, 1:11 PM MDT | Special Weather Statement | CYS | Platte | 49 min |
| Jun 1, 3:03 PM MDT | Special Weather Statement | CYS | Laramie | 42 min |
| Jun 1, 3:07 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Laramie | 23 min |
| Jun 1, 3:39 PM MDT | Special Weather Statement | CYS | Laramie | 51 min |
| Jun 1, 4:23 PM MDT | Special Weather Statement | CYS | Platte | 52 min |
| Jun 1, 5:32 PM MDT | Special Weather Statement | CYS | Platte | 43 min |
| Jun 1, 5:50 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 40 min |
| Jun 1, 2:16 PM MDT | Special Weather Statement | CYS | Sioux | 44 min |
| Jun 1, 2:24 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 51 min |
| Jun 1, 3:41 PM MDT | Special Weather Statement | CYS | Box Butte | 49 min |
| Jun 1, 3:53 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sioux | 52 min |
| Jun 1, 4:42 PM MDT | Special Weather Statement | CYS | Box Butte | 33 min |
| Jun 1, 5:09 PM MDT | Special Weather Statement | CYS | Box Butte | 36 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2019Every severe thunderstorm warning in 2019
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.