Alert archive / Utah / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 115, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Oct 8, 2021, 3:36 PM MDT for Tooele County, Utah. It was in force for 24 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
- Oct 8, 2021, 3:36 PM MDT (21:36 UTC)
- Expired
- Oct 8, 2021, 4:00 PM MDT
- In force
- 24 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Tooele County, UT
The radar
The Salt Lake City radar (KMTX), 131 km from the middle of the area, began a volume at 21:38 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
Elko, NV (KLKN), launched 12:00Z, 9.6 hours before the alert went out and 50 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
- 1023 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
085 WUUS55 KSLC 082136 SVRSLC UTC045-082200- /O.NEW.KSLC.SV.W.0115.211008T2136Z-211008T2200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Salt Lake City UT 336 PM MDT Fri Oct 8 2021 The National Weather Service in Salt Lake City has issued a * Severe Thunderstorm Warning for... Northwestern Tooele County in northern Utah... * Until 400 PM MDT * At 336 PM MDT, a severe thunderstorm was located 16 miles southeast of Wendover, moving northeast at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Utah Test and Training Range South and Bonneville Salt Flats. This includes Interstate 80 in Utah between mile markers 9 and 28. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4042 11382 4064 11400 4093 11365 4056 11336 TIME...MOT...LOC 2136Z 236DEG 21KT 4058 11379 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CRK
1 follow-up statement
610 WWUS55 KSLC 082144 SVSSLC Severe Weather Statement National Weather Service Salt Lake City UT 344 PM MDT Fri Oct 8 2021 UTC045-082200- /O.CON.KSLC.SV.W.0115.000000T0000Z-211008T2200Z/ Tooele UT- 344 PM MDT Fri Oct 8 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR NORTHWESTERN TOOELE COUNTY... At 344 PM MDT, a severe thunderstorm was located 17 miles southeast of Wendover, moving northeast at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Utah Test and Training Range South and Bonneville Salt Flats. This includes Interstate 80 in Utah between mile markers 11 and 28. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4051 11379 4067 11393 4093 11365 4056 11336 TIME...MOT...LOC 2144Z 236DEG 21KT 4061 11374 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CRK
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 6:17 PM MDT | Special Weather Statement | SLC | Tooele | 43 min |
| Oct 7, 7:26 PM MDT | Special Weather Statement | SLC | Tooele | 49 min |
| Oct 7, 9:13 PM MDT | Special Weather Statement | SLC | Weber | 47 min |
| Oct 8, 2:58 PM MDT | Special Weather Statement | SLC | Tooele | 47 min |
| Oct 8, 3:09 PM MDT | Special Weather Statement | SLC | 51 min | |
| Oct 8, 3:21 PM MDT | Special Weather Statement | SLC | Box Elder | 54 min |
| Oct 8, 3:56 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 30 min |
| Oct 8, 4:43 PM MDT | Special Weather Statement | SLC | 47 min | |
| Oct 8, 5:23 PM MDT | Special Weather Statement | SLC | 52 min |
Nearby
Severe Thunderstorm Warnings in Utah, 2021Every severe thunderstorm 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.