Alert archive / Utah / Special Weather Statements in 2021
Special Weather Statement, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this special weather statement at May 19, 2021, 4:23 PM MDT for Duchesne County, Utah. It was in force for 22 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 19, 2021, 4:23 PM MDT (22:23 UTC)
- Expired
- May 19, 2021, 4:45 PM MDT
- In force
- 22 min
- Issued by
- NWS Salt Lake City, UT
County Duchesne County, UT
The radar
The Grand Junction radar (KGJX), 217 km from the middle of the area, began a volume at 22:24 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, 10.4 hours before the alert went out and 151 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
- 2894 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</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 Salt Lake City, UT wrote its last area forecast discussion before this special weather statement went out at May 19, 11:23 AM MDT, 5 hours earlier.
Area forecast discussion, May 19, 11:23 AM MDT, 5 hours before
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<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.
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</html>Hazardous weather outlook, May 19, 5:13 AM MDT, 11 hours 10 minutes before
Hazardous Weather Outlook National Weather Service Salt Lake City UT 513 AM MDT Wed May 19 2021 UTZ101>131-WYZ021-201300- Great Salt Lake Desert and Mountains-Tooele and Rush Valleys- Eastern Box Elder County-Northern Wasatch Front-Salt Lake Valley- Utah Valley-Cache Valley/Utah Portion-Wasatch Back- Bear Lake and Bear River Valley-Wasatch Mountains I-80 North- Wasatch Mountains South of I-80-Western Uinta Mountains- Wasatch Plateau/Book Cliffs-Western Uinta Basin- Western Millard and Juab Counties-Eastern Juab/Millard Counties- Central Mountains-Sanpete Valley-Sevier Valley-Castle Country- San Rafael Swell-Southwest Utah-Lower Washington County- Zion National Park-Southern Mountains-Upper Sevier River Valleys- Bryce Canyon Country-South Central Utah- Capitol Reef National Park and Vicinity-Western Canyonlands- Glen Canyon Recreation Area/Lake Powell-Southwest Wyoming- 513 AM MDT Wed May 19 2021 This Hazardous Weather Outlook is for portions of central Utah... northern Utah...southern Utah...southwest Utah and southwest Wyoming. .DAY ONE...Today and Tonight Winds will increase this afternoon as an area of low pressure approaches from the northwest. This will create hazardous fire weather conditions for southern and southwest Utah. Isolated showers and thunderstorms are expected across mainly northern Utah this afternoon, with gusty outflow winds possible. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Southwesterly winds are expected to strengthen Thursday with windy to very windy conditions developing by afternoon across central and southern Utah. These winds may cause areas of blowing dust and choppy conditions on area waterways. There is a potential for similar conditions to linger into at least Saturday. Hazardous fire weather conditions will continue through Friday due to a continuation of strong winds and low humidity. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. For more information from NOAA/s National Weather Service visit... http://weather.gov/saltlakecity For information on potential road travel impacts visit... http://www.udottraffic.utah.gov/roadweatherforecast.aspx
In the hours before
Special weather statement, May 19, 4:23 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Salt Lake City UT
423 PM MDT Wed May 19 2021
UTZ113-114-192245-
Western Uinta Basin UT-Wasatch Plateau/Book Cliffs UT-
423 PM MDT Wed May 19 2021
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL DUCHESNE COUNTY
UNTIL 445 PM MDT...
At 422 PM MDT, National Weather Service Doppler radar indicated a
strong thunderstorm near Duchesne...moving northeast at 30 mph.
Strong microburst wind gusts of 40 to 55 mph will be possible.
Locations impacted include...
Roosevelt, Duchesne, Myton, Starvation Reservoir, Altamont, Upalco,
Arcadia, Talmage, Utahn and Bridgeland.
This includes the following highways...
US Route 40 between mile markers 81 and 115.
Utah Route 35 between mile markers 56 and 62.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If threatening weather approaches, take shelter in a sturdy building.
&&
LAT...LON 4004 11042 4011 11053 4037 11047 4036 10998
4014 10998
TIME...MOT...LOC 2222Z 233DEG 24KT 4012 11040
MPSThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 10:38 AM MDT | High Wind Warning | SLC | Beaver, Iron, Juab, Millard, Washington | 34 hr |
| May 19, 10:38 AM MDT | Wind Advisory | SLC | Carbon, Duchesne, Emery, Garfield, Iron, Juab and 7 more | 34 hr |
| May 19, 2:51 PM MDT | High Wind Watch | SLC | Carbon, Emery, Garfield, Sevier, Wayne | 24 hr |
| May 19, 2:51 PM MDT | Wind Advisory | SLC | Beaver, Box Elder, Carbon, Duchesne, Emery, Garfield and 14 more | 54 hr |
| May 19, 5:01 PM MDT | Special Weather Statement | SLC | Utah | 29 min |
| May 19, 5:41 PM MDT | Special Weather Statement | SLC | Salt Lake | 34 min |
Nearby
Special Weather Statements in Utah, 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.