Alert archive / Utah / Wind Advisories in 2021
Wind Advisory 29, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this wind advisory at Sep 28, 2021, 10:46 AM MDT for 4 counties in Utah. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2021, 10:46 AM MDT (16:46 UTC)
- Expired
- Sep 28, 2021, 9:00 PM MDT
- In force
- 10 hr
- Issued by
- NWS Salt Lake City, UT
Counties Box Elder County, UT, Salt Lake County, UT, Tooele County, UT, Utah County, UT
The radar
The Salt Lake City radar (KMTX), 64 km from the middle of the area, began a volume at 16:48 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, 4.8 hours before the alert went out and 48 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
- 13 J/kg
- Mixed-layer CIN
- -342 J/kg
- Mixed-layer LCL
- 2694 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
312 WWUS75 KSLC 281646 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 1046 AM MDT Tue Sep 28 2021 UTZ101-103-290000- /O.NEW.KSLC.WI.Y.0029.210928T1646Z-210929T0000Z/ Great Salt Lake Desert and Mountains-Eastern Box Elder County- Including the cities of Wendover, Dugway, Park Valley, Brigham City, and Snowville 1046 AM MDT Tue Sep 28 2021 ...WIND ADVISORY IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Northwest winds 15 to 25 mph with local gusts around 45 mph. * WHERE...Great Salt Lake Desert and Mountains and Eastern Box Elder County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Winds will cause rough chop on area waterways. Patchy blowing dust may locally reduce visibility. Difficult driving conditions due to crosswinds for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ UTZ106-290200- /O.NEW.KSLC.WI.Y.0029.210928T2000Z-210929T0300Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 1046 AM MDT Tue Sep 28 2021 ...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING... * WHAT...Northwest winds 15 to 25 mph expected with gusts to 45 mph. * WHERE...Utah Valley, mainly north of Provo. * WHEN...From 2 PM this afternoon to 9 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Winds will cause rough chop on Utah Lake. Patchy blowing dust may locally reduce visibility. Difficult driving conditions due to crosswinds for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
2 follow-up statements
707 WWUS75 KSLC 282351 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 551 PM MDT Tue Sep 28 2021 UTZ101-103-290100- /O.EXP.KSLC.WI.Y.0029.000000T0000Z-210929T0000Z/ Great Salt Lake Desert and Mountains-Eastern Box Elder County- Including the cities of Wendover, Dugway, Park Valley, Brigham City, and Snowville 551 PM MDT Tue Sep 28 2021 ...WIND ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... Winds have decreased below advisory criteria across the Great Salt Lake Desert and Eastern Box Elder County. However, areas of wind gusts greater than 35 mph will continue through the early evening hours. $$ UTZ106-290300- /O.CON.KSLC.WI.Y.0029.000000T0000Z-210929T0300Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 551 PM MDT Tue Sep 28 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...North winds 15 to 30 mph with gusts over 40 mph. * WHERE...Utah Valley. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Winds will cause rough chop on Utah Lake. Patchy blowing dust may locally reduce visibility. Difficult driving conditions due to crosswinds for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
830 WWUS75 KSLC 290255 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 855 PM MDT Tue Sep 28 2021 UTZ106-290400- /O.EXP.KSLC.WI.Y.0029.000000T0000Z-210929T0300Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 855 PM MDT Tue Sep 28 2021 ...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... Winds have decreased below advisory criteria across the Utah Valley. Therefore, the Wind Advisory has been allowed to expire. $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 27, 6:10 PM MDT | Special Weather Statement | SLC | Kane | 35 min |
| Sep 27, 7:59 PM MDT | Special Weather Statement | SLC | Iron | 46 min |
| Sep 28, 3:10 PM MDT | Flash Flood Warning | SLC | Wayne | 3 hr |
Nearby
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.