Alert archive / Utah / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 21, NWS Salt Lake City, UT

June 27, 2024Garfield County, Wayne County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 27, 2024, 1:09 PM MDT for Garfield County, Wayne County, Utah. It was in force for 51 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
Jun 27, 2024, 1:09 PM MDT (19:09 UTC)
Expired
Jun 27, 2024, 2:00 PM MDT
In force
51 min
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Garfield County, UT, Wayne County, UT

The radar

The Cedar City radar (KICX), 121 km from the middle of the area, began a volume at 19:09 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, 7.2 hours before the alert went out and 296 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.

Skew-T log-pSkew-T log-p diagram, Grand Junction, CO at 12:00Z on 2024-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 165 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Grand Junction, CO at 12:00Z on 2024-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
165 J/kg
Mixed-layer CIN
-174 J/kg
Mixed-layer LCL
1701 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

389 
WUUS55 KSLC 271909
SVRSLC
UTC017-055-272000-
/O.NEW.KSLC.SV.W.0021.240627T1909Z-240627T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Salt Lake City UT
109 PM MDT Thu Jun 27 2024

The National Weather Service in Salt Lake City has issued a

* Severe Thunderstorm Warning for...
  North central Garfield County in southern Utah...
  Southern Wayne County in southern Utah...

* Until 200 PM MDT.

* At 109 PM MDT, a severe thunderstorm was located 13 miles southeast
  of Antimony, or 18 miles northwest of Escalante, moving east at 20
  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.

* Locations impacted include...
  Boulder.

This includes Utah Route 12 between mile markers 88 and 96.
 
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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3791 11181 3815 11187 3822 11141 3811 11137
      3792 11139
TIME...MOT...LOC 1909Z 257DEG 18KT 3800 11177 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

STW
2 follow-up statements
014 
WWUS55 KSLC 271937
SVSSLC

Severe Weather Statement
National Weather Service Salt Lake City UT
137 PM MDT Thu Jun 27 2024

UTC017-055-272000-
/O.CON.KSLC.SV.W.0021.000000T0000Z-240627T2000Z/
Garfield UT-Wayne UT-
137 PM MDT Thu Jun 27 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT
FOR NORTH CENTRAL GARFIELD AND SOUTHERN WAYNE COUNTIES...

At 136 PM MDT, a severe thunderstorm was located 10 miles northwest
of Boulder, or 20 miles north of Escalante, moving east at 20 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.

Locations impacted include...
Boulder.

This includes Utah Route 12 between mile markers 91 and 96.
 
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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3794 11161 3818 11166 3820 11140 3811 11137
      3796 11139
TIME...MOT...LOC 1936Z 253DEG 19KT 3806 11154 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

STW
893 
WWUS55 KSLC 271958
SVSSLC

Severe Weather Statement
National Weather Service Salt Lake City UT
158 PM MDT Thu Jun 27 2024

UTC017-055-272006-
/O.EXP.KSLC.SV.W.0021.000000T0000Z-240627T2000Z/
Garfield UT-Wayne UT-
158 PM MDT Thu Jun 27 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL GARFIELD AND
SOUTHERN WAYNE COUNTIES WILL EXPIRE AT 200 PM MDT...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
southern Utah.

Remember, Severe Thunderstorm Warning 024 still remains in effect 
for areas near and east of the eastern portion of Severe 
Thunderstorm Warning 021.

LAT...LON 3794 11161 3818 11166 3820 11140 3811 11137
      3796 11139
TIME...MOT...LOC 1956Z 257DEG 18KT 3808 11142 

$$

STW

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 6:22 PM MDTSpecial Weather StatementSLCBeaver38 min
Jun 26, 7:56 PM MDTSpecial Weather StatementSLCDuchesne34 min
Jun 26, 8:01 PM MDTSpecial Weather StatementSLCSevier29 min
Jun 27, 11:50 AM MDTSpecial Weather StatementSLCPiute40 min
Jun 27, 11:53 AM MDTSpecial Weather StatementSLCKane37 min
Jun 27, 12:35 PM MDTSevere Thunderstorm WarningSLCGarfield, Piute, Wayne40 min
Jun 27, 12:49 PM MDTFlash Flood Warning Considerable damage threatSLCWayne3 hr
Jun 27, 1:00 PM MDTSpecial Weather StatementSLCEmery30 min
Jun 27, 1:14 PM MDTSevere Thunderstorm WarningSLCWayne46 min
Jun 27, 1:25 PM MDTAreal Flood AdvisorySLCKane3 hr
Jun 27, 1:30 PM MDTSevere Thunderstorm WarningSLCEmery17 min
Jun 27, 1:38 PM MDTSpecial Weather StatementSLCPiute37 min
Jun 27, 1:39 PM MDTFlash Flood Warning Considerable damage threatSLCEmery, Wayne4 hr
Jun 27, 1:41 PM MDTSpecial Weather StatementSLCCarbon34 min
Jun 27, 1:47 PM MDTFlash Flood Warning Considerable damage threatSLCEmery, Sevier3 hr
Jun 27, 1:52 PM MDTSevere Thunderstorm WarningSLCGarfield, Wayne53 min
Jun 27, 1:54 PM MDTSevere Thunderstorm WarningSLCWayne24 min
Jun 27, 2:11 PM MDTSpecial Weather StatementSLCKane49 min
Jun 27, 2:13 PM MDTSpecial Weather StatementSLCCarbon47 min
Jun 27, 2:15 PM MDTSevere Thunderstorm WarningSLCEmery, Wayne45 min
Jun 27, 2:16 PM MDTFlash Flood Warning Considerable damage threatSLCGarfield, Wayne7 hr
Jun 27, 2:25 PM MDTSevere Thunderstorm WarningSLCCarbon, Emery50 min
Jun 27, 2:30 PM MDTSevere Thunderstorm WarningSLCKane45 min
Jun 27, 2:42 PM MDTSevere Thunderstorm WarningSLCKane, San Juan48 min
Jun 27, 2:46 PM MDTFlash Flood Warning Considerable damage threatSLCKane3 hr
Jun 27, 2:47 PM MDTSevere Thunderstorm WarningSLCGarfield28 min
Jun 27, 3:13 PM MDTSpecial Weather StatementSLCDuchesne47 min
Jun 27, 3:17 PM MDTSpecial Weather StatementSLCWayne43 min
Jun 27, 3:33 PM MDTSpecial Weather StatementSLCSevier27 min
Jun 27, 3:48 PM MDTSpecial Weather StatementSLCSummit42 min
Jun 27, 3:54 PM MDTFlash Flood Warning Considerable damage threatSLCEmery, Garfield, San Juan, Wayne6 hr
Jun 27, 3:55 PM MDTSpecial Weather StatementSLC50 min
Jun 27, 4:09 PM MDTSpecial Weather StatementSLCSummit51 min
Jun 27, 4:10 PM MDTSpecial Weather StatementSLCSevier35 min
Jun 27, 4:18 PM MDTSpecial Weather StatementSLCSevier27 min
Jun 27, 4:24 PM MDTAreal Flood AdvisorySLCDuchesne3 hr
Jun 27, 4:24 PM MDTSevere Thunderstorm WarningSLCDuchesne36 min
Jun 27, 4:38 PM MDTSpecial Weather StatementSLC37 min
Jun 27, 4:48 PM MDTSpecial Weather StatementSLCSevier27 min
Jun 27, 5:05 PM MDTSpecial Weather StatementSLCWayne25 min
Jun 27, 5:22 PM MDTSpecial Weather StatementSLCSanpete38 min

Nearby

Severe Thunderstorm Warnings in Utah, 2024Every severe thunderstorm warning in 2024

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.