Alert archive / Utah / High Wind Warnings in 2021
High Wind Warning 7, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this high wind warning at Aug 21, 2021, 8:32 PM MDT for Utah County, Utah. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2021, 8:32 PM MDT (02:32 UTC)
- Expired
- Aug 21, 2021, 11:24 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
County Utah County, UT
The radar
The Salt Lake City radar (KMTX), 143 km from the middle of the area, began a volume at 02:33 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 00:00Z, 2.5 hours before the alert went out and 76 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
- 422 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 2862 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
992 WWUS75 KSLC 220232 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 832 PM MDT Sat Aug 21 2021 UTZ106-220600- /O.NEW.KSLC.HW.W.0007.210822T0232Z-210822T0600Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 832 PM MDT Sat Aug 21 2021 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...North winds 30 to 40 mph with gusts to 70 mph. * WHERE...Utah Valley mainly north of Provo. * WHEN...Until midnight MDT tonight. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel will be difficult especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
1 follow-up statement
478 WWUS75 KSLC 220524 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 1124 PM MDT Sat Aug 21 2021 UTZ106-220630- /O.CAN.KSLC.HW.W.0007.000000T0000Z-210822T0600Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 1124 PM MDT Sat Aug 21 2021 ...HIGH WIND WARNING IS CANCELLED... Wind gusts up to 35 mph may continue through the overnight hours across northern Utah County. Wind gusts over 58 mph are no longer expected...therefore the high wind warning is cancelled. $$ 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 |
|---|---|---|---|---|
| Aug 21, 6:06 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Rich, Salt Lake and 3 more | 39 min |
| Aug 21, 6:29 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich | 61 min |
| Aug 21, 6:40 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Rich, Salt Lake and 3 more | 50 min |
| Aug 21, 6:59 PM MDT | Areal Flood Advisory | SLC | Davis, Weber | 2 hr |
| Aug 21, 7:08 PM MDT | Severe Thunderstorm Warning | SLC | Summit | 37 min |
| Aug 21, 7:23 PM MDT | Special Weather Statement | SLC | Salt Lake | 37 min |
| Aug 21, 7:33 PM MDT | Areal Flood Advisory | SLC | Davis, Morgan, Salt Lake, Summit | 117 min |
| Aug 21, 7:41 PM MDT | Special Weather Statement | SLC | Summit | 49 min |
| Aug 21, 7:49 PM MDT | Special Weather Statement | SLC | Duchesne | 41 min |
| Aug 21, 8:09 PM MDT | Special Weather Statement | SLC | Summit | 51 min |
| Aug 21, 8:14 PM MDT | Special Weather Statement | SLC | 31 min | |
| Aug 21, 8:19 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne, Summit | 26 min |
| Aug 21, 9:59 PM MDT | Flash Flood Warning | SLC | Salt Lake | 91 min |
Nearby
High Wind Warnings in Utah, 2021Every high wind warning 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.