Alert archive / Utah / Special Weather Statements in 2018
Special Weather Statement, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this special weather statement at Jul 23, 2018, 4:49 PM MDT. It was in force for 41 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 23, 2018, 4:49 PM MDT (22:49 UTC)
- Expired
- Jul 23, 2018, 5:30 PM MDT
- In force
- 41 min
- Issued by
- NWS Salt Lake City, UT
The radar
The Cedar City radar (KICX), 65 km from the middle of the area, began a volume at 22:50 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, 10.8 hours before the alert went out and 276 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
- 32 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 2216 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 42 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 Jul 23, 3:51 PM MDT, 58 minutes earlier.
Area forecast discussion, Jul 23, 3:51 PM MDT, 58 minutes before
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<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.
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</html>Hazardous weather outlook, Jul 23, 5:52 AM MDT, 10 hours 57 minutes before
Hazardous Weather Outlook National Weather Service Salt Lake City UT 552 AM MDT Mon Jul 23 2018 UTZ001>016-019>021-517-518-WYZ021-241300- 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- 552 AM MDT Mon Jul 23 2018 This Hazardous Weather Outlook is for the western two thirds of Utah and southwest Wyoming. .DAY ONE...Today and Tonight Showers and thunderstorms will be remain possible, mainly over the higher terrain and adjacent valleys. Gusty winds and small hail will be possible with the stronger storms. Isolated flash flooding will remain possible, mainly near recent burn scars. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Temperatures will be very warm on Tuesday and remain elevated through most the week. Consecutive days of warm temperatures during both the daytime and overnight hours will lead to an increased threat of heat-related illnesses. .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
Local storm report, Jul 23, 11:17 AM MDT, 5 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1117 AM MDT MON JUL 23 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0355 PM FLASH FLOOD 8 SSE FRUITLAND 40.13N 110.75W
07/22/2018 DUCHESNE UT NWS EMPLOYEE
WATER RESCUES IN THE CAMELOT RESORT WITH REPORTS OF
IMPASSABLE ROADS IN STRAWBERRY RIVER BASIN. DEBRIS FLOWS
OFF OF THE DOLLAR RIDGE FIRE SPAWNED THIS FLOODING.
0546 PM FLASH FLOOD 6 S MARYSVALE 38.35N 112.26W
07/22/2018 PIUTE UT DEPT OF HIGHWAYS
US89 CLOSED AT MP173 DUE TO FLOODING AND MUD MAKING
ROADWAY IMPASSABLE
&&
MSTRUTHWSpecial weather statement, Jul 23, 3:42 PM MDT, 1 hour 7 minutes before
Special Weather Statement National Weather Service Salt Lake City UT 342 PM MDT MON JUL 23 2018 UTZ013-517-232230- San Rafael Swell UT-Central and Southwest Mountains UT- 342 PM MDT MON JUL 23 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN EMERY AND EAST CENTRAL SEVIER COUNTIES UNTIL 430 PM MDT... At 341 PM MDT, National Weather Service Doppler radar indicated a strong thunderstorm 18 miles northeast of Bicknell, or 21 miles northwest of Capitol Reef National Park...moving northeast at 5 mph. Pea size hail and winds in excess of 40 mph will be possible. This storm will remain over mainly rural areas of southwestern Emery and east central Sevier Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. Strong winds with these storms may occur well ahead of any rain or lightning. Do not wait for the sound of thunder before taking cover. && LAT...LON 3852 11127 3864 11143 3882 11126 3863 11100 TIME...MOT...LOC 2141Z 224DEG 6KT 3857 11136 Bonnette
Special weather statement, Jul 23, 4:49 PM MDT, 0 minutes before
Special Weather Statement National Weather Service Salt Lake City UT 449 PM MDT MON JUL 23 2018 UTZ020-518-232330- Southern Utah Mountains UT-South Central Utah UT- 449 PM MDT MON JUL 23 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GARFIELD COUNTY UNTIL 530 PM MDT... At 449 PM MDT, National Weather Service Doppler radar indicated a strong thunderstorm over Bryce Canyon National Park, or 32 miles west of Escalante...moving northeast at 10 mph. Penny size hail and wind gusts up to 50 mph will be possible. Locations impacted include... Bryce Canyon National Park, Tropic and Rubys Inn. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. && LAT...LON 3759 11220 3773 11230 3789 11205 3767 11192 TIME...MOT...LOC 2249Z 238DEG 8KT 3767 11218 DVC
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:42 PM MDT | Special Weather Statement | SLC | Wayne | 48 min |
| Jul 23, 4:04 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne | 41 min |
| Jul 23, 4:57 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 33 min |
Nearby
Special Weather Statements in Utah, 2018Every special weather statement 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.