Alert archive / Utah / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 96, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 26, 2021, 3:09 PM MDT for Emery County, Utah. It was in force for 36 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
- Aug 26, 2021, 3:09 PM MDT (21:09 UTC)
- Expired
- Aug 26, 2021, 3:45 PM MDT
- In force
- 36 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Emery County, UT
The radar
The Grand Junction radar (KGJX), 219 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
Grand Junction, CO (KGJT), launched 12:00Z, 9.2 hours before the alert went out and 194 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
- 3119 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -78 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
110
WUUS55 KSLC 262109
SVRSLC
UTC015-262145-
/O.NEW.KSLC.SV.W.0096.210826T2109Z-210826T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Salt Lake City UT
309 PM MDT Thu Aug 26 2021
The National Weather Service in Salt Lake City has issued a
* Severe Thunderstorm Warning for...
Central Emery County in central Utah...
* Until 345 PM MDT
* At 309 PM MDT, a severe thunderstorm was located 18 miles southeast
of Clawson, or 34 miles west of Green River, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly rural areas of
central Emery County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 3887 11083 3909 11096 3921 11062 3894 11049
TIME...MOT...LOC 2109Z 249DEG 12KT 3900 11080
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MT2 follow-up statements
007
WWUS55 KSLC 262130
SVSSLC
Severe Weather Statement
National Weather Service Salt Lake City UT
330 PM MDT Thu Aug 26 2021
UTC015-262145-
/O.CON.KSLC.SV.W.0096.000000T0000Z-210826T2145Z/
Emery UT-
330 PM MDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM MDT
FOR CENTRAL EMERY COUNTY...
At 329 PM MDT, a severe thunderstorm was located 21 miles east of
Clawson, or 29 miles west of Green River, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
central Emery County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3887 11083 3909 11096 3921 11062 3894 11049
TIME...MOT...LOC 2129Z 249DEG 12KT 3902 11072
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MT281
WWUS55 KSLC 262145
SVSSLC
Severe Weather Statement
National Weather Service Salt Lake City UT
345 PM MDT Thu Aug 26 2021
UTC015-262154-
/O.EXP.KSLC.SV.W.0096.000000T0000Z-210826T2145Z/
Emery UT-
345 PM MDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL EMERY COUNTY WILL
EXPIRE AT 345 PM MDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. Because strong
wind gusts to 50 mph and hail to nickel size are still possible with
these cells, a Special Weather Statement has been issued until 415
PM for these cells.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Salt Lake City.
LAT...LON 3887 11083 3909 11096 3921 11062 3894 11049
TIME...MOT...LOC 2144Z 249DEG 12KT 3904 11067
$$
MTThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 6:02 PM MDT | Special Weather Statement | SLC | Utah | 28 min |
| Aug 25, 6:30 PM MDT | Special Weather Statement | SLC | Salt Lake | 30 min |
| Aug 25, 6:48 PM MDT | Special Weather Statement | SLC | Wasatch | 27 min |
| Aug 25, 7:24 PM MDT | Special Weather Statement | SLC | Utah | 36 min |
| Aug 25, 10:10 PM MDT | Special Weather Statement | SLC | Salt Lake | 35 min |
| Aug 26, 1:23 PM MDT | Special Weather Statement | SLC | Duchesne | 37 min |
| Aug 26, 2:27 PM MDT | Special Weather Statement | SLC | Wayne | 33 min |
| Aug 26, 2:50 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Wayne | 25 min |
| Aug 26, 3:00 PM MDT | Special Weather Statement | SLC | Emery | 45 min |
| Aug 26, 3:13 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Wayne | 32 min |
| Aug 26, 3:28 PM MDT | Flash Flood Warning | SLC | Emery, Wayne | 3 hr |
| Aug 26, 3:44 PM MDT | Special Weather Statement | SLC | Emery | 31 min |
| Aug 26, 3:49 PM MDT | Special Weather Statement | SLC | 26 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.