Alert archive / Utah / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 13, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Jul 14, 2021, 5:35 PM MDT for Emery County, Utah. It was in force for 40 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
- Jul 14, 2021, 5:35 PM MDT (23:35 UTC)
- Expired
- Jul 14, 2021, 6:15 PM MDT
- In force
- 40 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), 183 km from the middle of the area, began a volume at 23:36 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, 11.6 hours before the alert went out and 160 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
- 30 J/kg
- Mixed-layer CIN
- -230 J/kg
- Mixed-layer LCL
- 1715 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
465
WUUS55 KSLC 142335
SVRSLC
UTC015-150015-
/O.NEW.KSLC.SV.W.0013.210714T2335Z-210715T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Salt Lake City UT
535 PM MDT Wed Jul 14 2021
The National Weather Service in Salt Lake City has issued a
* Severe Thunderstorm Warning for...
Southeastern Emery County in central Utah...
* Until 615 PM MDT
* At 535 PM MDT, a severe thunderstorm was located 18 miles west of
Green River, moving southeast at 25 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
southeastern Emery County.
This includes the following highways...
Interstate 70 between mile markers 134 and 158.
US Route 6 between mile markers 291 and 300.
Utah Route 24 between mile markers 146 and 160.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3875 11032 3874 11061 3913 11065 3922 11043
3889 11015 3886 11017 3887 11014 3886 11013
TIME...MOT...LOC 2335Z 336DEG 22KT 3907 11049
HAIL...1.00IN
WIND...60MPH
$$
Church2 follow-up statements
091
WWUS55 KSLC 150000
SVSSLC
Severe Weather Statement
National Weather Service Salt Lake City UT
600 PM MDT Wed Jul 14 2021
UTC015-150015-
/O.CON.KSLC.SV.W.0013.000000T0000Z-210715T0015Z/
Emery UT-
600 PM MDT Wed Jul 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MDT
FOR SOUTHEASTERN EMERY COUNTY...
At 600 PM MDT, a severe thunderstorm was located 14 miles west of
Green River, moving southeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
southeastern Emery County.
This includes the following highways...
Interstate 70 between mile markers 134 and 158.
US Route 6 between mile markers 293 and 300.
Utah Route 24 between mile markers 146 and 160.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3875 11032 3874 11061 3906 11064 3907 11031
3889 11015 3886 11017 3887 11014 3886 11013
TIME...MOT...LOC 0000Z 336DEG 22KT 3893 11041
HAIL...<.75IN
WIND...60MPH
$$
Church379
WWUS55 KSLC 150015
SVSSLC
Severe Weather Statement
National Weather Service Salt Lake City UT
615 PM MDT Wed Jul 14 2021
UTC015-150025-
/O.EXP.KSLC.SV.W.0013.000000T0000Z-210715T0015Z/
Emery UT-
615 PM MDT Wed Jul 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN EMERY COUNTY HAS
EXPIRED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been allowed to expire. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
LAT...LON 3875 11032 3874 11061 3906 11064 3907 11031
3889 11015 3886 11017 3887 11014 3886 11013
TIME...MOT...LOC 0015Z 336DEG 22KT 3885 11036
$$
ChurchThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:02 PM MDT | Special Weather Statement | SLC | Beaver, Iron | 58 min |
| Jul 13, 7:10 PM MDT | Special Weather Statement | SLC | Iron | 65 min |
| Jul 13, 8:14 PM MDT | Special Weather Statement | SLC | Washington | 61 min |
| Jul 14, 9:32 AM MDT | Flash Flood Watch | SLC | Emery, Garfield, Kane, San Juan, Sevier, Washington and 1 more | 12 hr |
| Jul 14, 1:36 PM MDT | Special Weather Statement | SLC | Duchesne | 39 min |
| Jul 14, 2:27 PM MDT | Flash Flood Warning | SLC | Carbon | 2 hr |
| Jul 14, 2:28 PM MDT | Special Weather Statement | SLC | Kane | 62 min |
| Jul 14, 3:06 PM MDT | Special Weather Statement | SLC | Garfield | 39 min |
| Jul 14, 3:31 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 29 min |
| Jul 14, 3:45 PM MDT | Flash Flood Warning | SLC | Garfield, Kane, San Juan | 6 hr |
| Jul 14, 4:01 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 44 min |
| Jul 14, 4:21 PM MDT | Special Weather Statement | SLC | Carbon | 39 min |
| Jul 14, 4:39 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 66 min |
| Jul 14, 4:54 PM MDT | Areal Flood Advisory | SLC | Iron | 111 min |
| Jul 14, 5:04 PM MDT | Special Weather Statement | SLC | Salt Lake | 41 min |
| Jul 14, 5:06 PM MDT | Special Weather Statement | SLC | Emery | 54 min |
| Jul 14, 5:20 PM MDT | Special Weather Statement | SLC | Kane | 40 min |
| Jul 14, 5:29 PM MDT | Areal Flood Advisory | SLC | Iron | 2 hr |
| Jul 14, 5:42 PM MDT | Special Weather Statement | SLC | Utah | 48 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.