Alert archive / Utah / High Wind Watches in 2021
High Wind Watch 6, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this high wind watch at Sep 18, 2021, 3:12 PM MDT for Utah County, Utah. It took effect at Sep 19, 2021, 3:00 PM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Sep 18, 2021, 3:12 PM MDT (21:12 UTC)
- In effect from
- Sep 19, 2021, 3:00 PM MDT
- Expired
- Sep 19, 2021, 2:59 AM MDT
- In force
- 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 21:11 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 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2721 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
986 WWUS75 KSLC 182112 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 312 PM MDT Sat Sep 18 2021 UTZ106-190900- /O.NEW.KSLC.HW.A.0006.210919T2100Z-210920T0600Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 312 PM MDT Sat Sep 18 2021 ...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Utah Valley, mainly north of Provo. * WHEN...From Sunday afternoon through Sunday evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
1 follow-up statement
763 WWUS75 KSLC 190859 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 259 AM MDT Sun Sep 19 2021 UTZ106-200000- /O.UPG.KSLC.HW.A.0006.210919T2100Z-210920T0600Z/ /O.NEW.KSLC.WI.Y.0028.210919T2000Z-210920T0200Z/ Utah Valley- Including the cities of Lehi, Provo, and Payson 259 AM MDT Sun Sep 19 2021 ...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM MDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 to 50 mph expected. * WHERE...Utah Valley, mainly over Utah Lake and areas north of Provo. * WHEN...From 2 PM this afternoon to 8 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. A few power outages are possible. * ADDITIONAL DETAILS...Gusty northwest winds will create hazardous driving conditions along east to west oriented roadways, especially for high profile vehicles. Areas of blowing dust will also be possible, creating a reduction in visibility. Strong winds will also create dangerous boating conditions on Utah Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ UTZ107-108-118-200000- /O.NEW.KSLC.HZ.A.0002.210921T0600Z-210921T1500Z/ Cache Valley/Utah Portion-Wasatch Back-Sanpete Valley- Including the cities of Logan, Smithfield, Huntsville, Park City, Heber City, Manti, Ephraim, and Mt Pleasant 259 AM MDT Sun Sep 19 2021 ...HARD FREEZE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 27 possible. * WHERE...Cache Valley/Utah Portion, Wasatch Back and Sanpete Valley. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ 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 18, 11:25 AM MDT | Special Weather Statement | SLC | Iron | 50 min |
| Sep 18, 1:07 PM MDT | Special Weather Statement | SLC | Sanpete | 38 min |
| Sep 18, 1:51 PM MDT | Special Weather Statement | SLC | Utah, Wasatch | 39 min |
| Sep 18, 2:43 PM MDT | Flash Flood Warning | SLC | Emery | 3 hr |
| Sep 18, 3:15 PM MDT | Special Weather Statement | SLC | Duchesne | 45 min |
Nearby
High Wind Watches in Utah, 2021Every high wind watch 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.