Alert archive / Utah / Special Weather Statements in 2020
Special Weather Statement, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this special weather statement at Jun 28, 2020, 3:13 PM MDT for Davis County, Utah. 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 outline as issued.
The facts
- Issued
- Jun 28, 2020, 3:13 PM MDT (21:13 UTC)
- Expired
- Jun 28, 2020, 4:00 PM MDT
- In force
- 47 min
- Issued by
- NWS Salt Lake City, UT
County Davis County, UT
The radar
The Salt Lake City radar (KMTX), 51 km from the middle of the area, began a volume at 21:17 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, 9.2 hours before the alert went out and 60 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
- 16 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 3034 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 227 m²/s²
- 0-3 km storm-relative helicity
- 240 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 Jun 28, 10:03 AM MDT, 5 hours 10 minutes earlier.
Area forecast discussion, Jun 28, 10:03 AM MDT, 5 hours 10 minutes before
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</html>Hazardous weather outlook, Jun 28, 4:50 AM MDT, 10 hours 23 minutes before
Hazardous Weather Outlook National Weather Service Salt Lake City UT 450 AM MDT Sun Jun 28 2020 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- 450 AM MDT Sun Jun 28 2020 This Hazardous Weather Outlook is for the western two thirds of Utah and southwest Wyoming. .DAY ONE...Today and tonight Strong winds and low humidities will bring critical fire weather conditions this afternoon and evening. Multiple fire starts in past 72 hrs are of major concern with the pending wind event impacting them today. Strong thunderstorms are also possible over central and northeast Utah this afternoon. .DAYS TWO THROUGH SEVEN...Monday through Saturday Gusty winds will persist across southeast Utah into Monday ahead of the strong cold front. Widespread rain will occur over northern Utah through Monday morning while isolated to scattered showers will occur over central Utah. Dry with a warming trend through end of the work week. .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
Local storm report, Jun 28, 1:29 PM MDT, 1 hour 44 minutes before
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</html>Local storm report, Jun 28, 1:51 PM MDT, 1 hour 22 minutes before
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</html>Local storm report, Jun 28, 2:32 PM MDT, 41 minutes before
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</html>Special weather statement, Jun 28, 2:38 PM MDT, 35 minutes before
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</html>Local storm report, Jun 28, 2:46 PM MDT, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
246 PM MDT SUN JUN 28 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0236 PM NON-TSTM WND GST 4 ESE SAINT GEORGE 37.07N 113.52W
06/28/2020 M59 MPH WASHINGTON UT AWOS
AWOS STATION KSGU ST GEORGE MUNI AIRPORT.
0226 PM NON-TSTM WND GST 4 ESE LEROY 41.30N 110.56W
06/28/2020 M59 MPH UINTA WY MESONET
MESONET STATION WY35 3.6 E LEROY (WYDOT).
0225 PM NON-TSTM WND GST 21 WSW MILFORD 38.31N 113.39W
06/28/2020 M59 MPH BEAVER UT MESONET
MESONET STATION BSTU1 BRIMSTONE RESERVOIR.
0215 PM NON-TSTM WND GST 4 ENE DELTA 39.38N 112.50W
06/28/2020 M58 MPH MILLARD UT AWOS
AWOS STATION KDTA DELTA.
&&
DEWEYSpecial weather statement, Jun 28, 3:13 PM MDT, 0 minutes before
Special Weather Statement National Weather Service Salt Lake City UT 313 PM MDT Sun Jun 28 2020 UTZ003-005-282200- Great Salt Lake Desert and Mountains UT- Salt Lake and Tooele Valleys UT- 313 PM MDT Sun Jun 28 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN TOOELE COUNTY UNTIL 400 PM MDT... At 313 PM MDT, National Weather Service Doppler radar indicated a strong thunderstorm 8 miles south of Delle, or 15 miles west of Grantsville...moving northeast at 40 mph. Wind gusts of 40 to 55 mph will be possible. Locations impacted include... Delle, Great Salt Lake South of the Causeway and Skull Valley. This includes Interstate 80 in Utah between mile markers 68 and 86. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. Strong winds with these showers may occur well ahead of any rain. Do not wait for rain or the sound of thunder before taking cover. SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from windows. && LAT...LON 4106 11255 4080 11231 4053 11275 4066 11291 TIME...MOT...LOC 2113Z 227DEG 37KT 4065 11276 Dewey
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 9:52 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 23 min |
| Jun 27, 10:37 PM MDT | Special Weather Statement | SLC | Davis | 38 min |
| Jun 28, 11:56 AM MDT | Special Weather Statement | SLC | Duchesne | 49 min |
| Jun 28, 12:27 PM MDT | Special Weather Statement | SLC | Salt Lake | 33 min |
| Jun 28, 12:52 PM MDT | Special Weather Statement | SLC | Salt Lake | 23 min |
| Jun 28, 2:38 PM MDT | Special Weather Statement | SLC | Weber | 37 min |
| Jun 28, 3:18 PM MDT | Special Weather Statement | SLC | Juab, Salt Lake | 57 min |
| Jun 28, 3:49 PM MDT | Special Weather Statement | SLC | Rich | 26 min |
| Jun 28, 4:08 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 22 min |
| Jun 28, 4:25 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 65 min |
Nearby
Special Weather Statements in Utah, 2020Every special weather statement in 2020
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.