Alert archive / Utah / Special Weather Statements in 2017
Special Weather Statement, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this special weather statement at Jul 28, 2017, 3:45 PM MDT for Garfield County, Utah. It was in force for 30 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
- Jul 28, 2017, 3:45 PM MDT (21:45 UTC)
- Expired
- Jul 28, 2017, 4:15 PM MDT
- In force
- 30 min
- Issued by
- NWS Salt Lake City, UT
County Garfield County, UT
The radar
The Cedar City radar (KICX), 143 km from the middle of the area, began a volume at 21:45 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.8 hours before the alert went out and 253 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
- 43 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1558 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Salt Lake City, UT wrote its last area forecast discussion before this special weather statement went out at Jul 28, 3:30 PM MDT, 15 minutes earlier.
Area forecast discussion, Jul 28, 3:30 PM MDT, 15 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, Jul 28, 5:56 AM MDT, 9 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Salt Lake City UT 556 AM MDT Fri Jul 28 2017 UTZ001>016-019>021-517-518-WYZ021-291200- Cache Valley/Utah Portion-Northern Wasatch Front- Salt Lake and Tooele Valleys-Southern Wasatch Front- Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys- Wasatch Mountains I-80 North-Wasatch Mountains South of I-80- Western Uinta Mountains-Wasatch Plateau/Book Cliffs- Western Uinta Basin-Castle Country-San Rafael Swell- Sanpete/Sevier Valleys-West Central Utah-Southwest Utah- Utahs Dixie and Zion National Park-South Central Utah- Glen Canyon Recreation Area/Lake Powell-Central Mountains- Southern Mountains-Southwest Wyoming- 556 AM MDT Fri Jul 28 2017 This Hazardous Weather Outlook is for the western two thirds of Utah and southwest Wyoming. .DAY ONE...Today and Tonight Moisture will maintain a threat for showers and thunderstorms across the outlook area. These storms will be most numerous over the higher terrain, as well as across southern and eastern Utah. Locally heavy rainfall is possible with the strongest storms. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A gradual drying trend is expected across the north over the weekend into early next week, while moisture remains in place across the south, maintaining a threat for showers and thunderstorms capable of producing heavy rainfall through at least Monday. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. 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, Jul 28, 1:03 PM MDT, 2 hours 42 minutes before
Special Weather Statement National Weather Service Salt Lake City UT 103 PM MDT FRI JUL 28 2017 UTZ020-518-281930- Southern Utah Mountains UT-South Central Utah UT- 103 PM MDT FRI JUL 28 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL GARFIELD COUNTY UNTIL 130 PM MDT... At 103 PM MDT, National Weather Service doppler radar indicated a strong thunderstorm 15 miles northwest of Escalante...moving northeast at 10 mph. Nickel size hail and winds in excess of 40 mph will be possible. This storm will remain over mainly rural areas of central Garfield County. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. && LAT...LON 3776 11189 3790 11192 3804 11175 3780 11159 TIME...MOT...LOC 1903Z 243DEG 8KT 3785 11186 Lukinbeal
Special weather statement, Jul 28, 1:15 PM MDT, 2 hours 30 minutes before
Special Weather Statement National Weather Service Salt Lake City UT 115 PM MDT FRI JUL 28 2017 UTZ020-518-281945- Southern Utah Mountains UT-South Central Utah UT- 115 PM MDT FRI JUL 28 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL GARFIELD COUNTY UNTIL 145 PM MDT... At 114 PM MDT, National Weather Service doppler radar indicated a strong thunderstorm 9 miles south of Escalante...moving northeast at 10 mph. Nickel size hail and winds in excess of 40 mph will be possible. Locations impacted include... Escalante. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3756 11164 3767 11178 3780 11158 3763 11141 TIME...MOT...LOC 1914Z 238DEG 8KT 3763 11160 Lukinbeal
Special weather statement, Jul 28, 1:32 PM MDT, 2 hours 13 minutes before
Special Weather Statement National Weather Service Salt Lake City UT 132 PM MDT FRI JUL 28 2017 UTZ020-518-282015- Southern Utah Mountains UT-South Central Utah UT- 132 PM MDT FRI JUL 28 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GARFIELD AND NORTH CENTRAL KANE COUNTIES UNTIL 215 PM MDT... At 131 PM MDT, National Weather Service doppler radar indicated a strong thunderstorm near Henrieville, or 29 miles southwest of Escalante...moving northeast at 15 mph. Nickel size hail, torrential rainfall, and winds in excess of 40 mph will be possible. Locations impacted include... Henrieville, Tropic and Cannonville. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. Torrential rainfall is also occurring with this storm, and may lead to localized flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3748 11213 3757 11218 3766 11201 3754 11190 TIME...MOT...LOC 1931Z 237DEG 12KT 3756 11207 Lukinbeal
Special weather statement, Jul 28, 2:05 PM MDT, 1 hour 40 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, Jul 28, 3:45 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 Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 8:04 PM MDT | Flash Flood Warning | SLC | Kane | 4 hr |
| Jul 27, 9:24 PM MDT | Flash Flood Warning | SLC | Kane | 4 hr |
| Jul 28, 1:03 PM MDT | Special Weather Statement | SLC | Garfield | 27 min |
| Jul 28, 1:15 PM MDT | Special Weather Statement | SLC | Garfield | 30 min |
| Jul 28, 1:32 PM MDT | Special Weather Statement | SLC | Kane | 43 min |
| Jul 28, 1:38 PM MDT | Flash Flood Warning | SLC | Garfield, Kane | 3 hr |
| Jul 28, 1:46 PM MDT | Flash Flood Warning | SLC | Garfield | 5 hr |
| Jul 28, 2:05 PM MDT | Special Weather Statement | SLC | Kane | 25 min |
| Jul 28, 2:39 PM MDT | Flash Flood Warning | SLC | Garfield | 3 hr |
| Jul 28, 2:58 PM MDT | Flash Flood Warning | SLC | Garfield, Kane, San Juan | 4 hr |
Nearby
Special Weather Statements in Utah, 2017Every special weather statement in 2017
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.