Alert archive / Nebraska / Special Weather Statements in 2021
Special Weather Statement, NWS North Platte, NE
NWS North Platte, NE issued this special weather statement at May 22, 2021, 11:47 PM MDT for Hooker County, McPherson County, Nebraska. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 22, 2021, 11:47 PM MDT (05:47 UTC)
- Expired
- May 23, 2021, 12:45 AM MDT
- In force
- 58 min
- Issued by
- NWS North Platte, NE
Counties Hooker County, NE, McPherson County, NE
The radar
The North Platte radar (KLNX), 31 km from the middle of the area, began a volume at 05:46 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.8 hours before the alert went out and 82 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
- 979 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1090 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.9
The text
As transmitted.
<!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>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS North Platte, NE wrote its last area forecast discussion before this special weather statement went out at May 22, 10:59 PM MDT, 48 minutes earlier.
Area forecast discussion, May 22, 10:59 PM MDT, 48 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>Hazardous weather outlook, May 22, 9:50 PM MDT, 1 hour 57 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>In the hours before
Local storm report, May 22, 8:29 PM MDT, 3 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
929 PM CDT SAT MAY 22 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0929 PM HEAVY RAIN 2 S MULLEN 42.01N 101.04W
05/22/2021 M1.42 INCH HOOKER NE CO-OP OBSERVER
&&
SNIVELYSpecial weather statement, May 22, 8:49 PM MDT, 2 hours 58 minutes before
Special Weather Statement National Weather Service North Platte NE 849 PM MDT Sat May 22 2021 NEZ058-069-230330- Chase NE-Perkins NE- 849 PM MDT Sat May 22 2021 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PERKINS AND NORTH CENTRAL CHASE COUNTIES UNTIL 930 PM MDT... At 849 PM MDT, Doppler radar was tracking a strong thunderstorm 9 miles north of Imperial, moving north at 35 mph. Nickel size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Grant, Madrid, Chase and Wild Horse Spring. This includes Highway 61 between mile markers 44 and 78. LAT...LON 4056 10157 4056 10182 4100 10190 4100 10147 TIME...MOT...LOC 0249Z 183DEG 29KT 4064 10169 Snively
Special weather statement, May 22, 9:07 PM MDT, 2 hours 40 minutes before
Special Weather Statement National Weather Service North Platte NE 1007 PM CDT Sat May 22 2021 NEZ059-230330- Lincoln NE- 1007 PM CDT Sat May 22 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN LINCOLN COUNTY UNTIL 1030 PM CDT... At 1006 PM CDT, Doppler radar was tracking a strong thunderstorm near Maxwell, or 13 miles southeast of North Platte, moving north at 35 mph. Nickel size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Maxwell, Keith and Cottonwood Canyon State Wildlife Management Area. This includes Interstate 80 in Nebraska between mile markers 185 and 197. LAT...LON 4099 10041 4099 10062 4130 10063 4130 10035 TIME...MOT...LOC 0306Z 183DEG 29KT 4104 10055 Snively
Special weather statement, May 22, 9:34 PM MDT, 2 hours 13 minutes before
Special Weather Statement
National Weather Service North Platte NE
934 PM MDT Sat May 22 2021
NEZ057-058-069-230400-
Chase NE-Perkins NE-Keith NE-
934 PM MDT Sat May 22 2021
...SIGNIFICANT WEATHER ADVISORY FOR PERKINS...KEITH AND CHASE
COUNTIES UNTIL 1000 PM MDT...
At 933 PM MDT, Doppler radar was tracking strong thunderstorms
extending from near Roscoe to Champion. Movement was north at 45 mph.
Half inch hail and winds in excess of 40 mph will be possible with
these storms.
Locations impacted include...
Ogallala, Imperial, Grant, Paxton, Brule, Madrid, Venango, Lamar,
Sarben, Keystone, Champion, Roscoe, Kingsley Dam, Crete, Chase,
Brandon, Nevens, Broganville, Big Bald Hill and Wild Horse Spring.
This includes the following highways...
Highway 61 between mile markers 41 and 101.
Highway 92 between mile markers 137 and 138.
Interstate 80 in Nebraska between mile markers 116 and 148.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4067 10205 4093 10206 4140 10160 4140 10127
4116 10127 4035 10168 4035 10198
TIME...MOT...LOC 0333Z 183DEG 40KT 4116 10156 4043 10187
SnivelySpecial weather statement, May 22, 10:00 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, May 22, 11:47 PM MDT, 0 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 North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 8:17 PM MDT | Special Weather Statement | LBF | Chase | 43 min |
| May 22, 8:21 PM MDT | Special Weather Statement | LBF | Lincoln | 39 min |
| May 22, 8:49 PM MDT | Special Weather Statement | LBF | Perkins | 41 min |
| May 22, 9:07 PM MDT | Special Weather Statement | LBF | Lincoln | 23 min |
| May 22, 9:34 PM MDT | Special Weather Statement | LBF | Chase, Keith, Perkins | 26 min |
| May 22, 10:00 PM MDT | Special Weather Statement | LBF | Chase, Keith, Perkins | 45 min |
| May 22, 10:21 PM MDT | Areal Flood Advisory | LBF | Keith, Perkins | 3 hr |
| May 23, 1:34 PM MDT | Special Weather Statement | LBF | Dawes | 41 min |
| May 23, 1:57 PM MDT | Special Weather Statement | LBF | Garden | 33 min |
| May 23, 2:26 PM MDT | Special Weather Statement | LBF | Sheridan | 34 min |
| May 23, 3:00 PM MDT | Special Weather Statement | LBF | Sheridan | 45 min |
| May 23, 4:33 PM MDT | Tornado Warning | LBF | Deuel, Garden | 42 min |
| May 23, 4:37 PM MDT | Special Weather Statement | LBF | Sheridan | 38 min |
| May 23, 5:09 PM MDT | Severe Thunderstorm Warning | LBF | Deuel, Garden, Grant | 51 min |
| May 23, 5:16 PM MDT | Special Weather Statement | LBF | Sheridan | 44 min |
| May 23, 5:38 PM MDT | Special Weather Statement | LBF | Deuel | 52 min |
| May 23, 5:48 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Garden, Grant, Sheridan | 42 min |
Nearby
Special Weather Statements in Nebraska, 2021Every special weather statement in 2021
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.