Severe Thunderstorm Warning 4, NWS Salt Lake City, UT

863 
WWUS55 KSLC 112219
SVSSLC

Severe Weather Statement
National Weather Service Salt Lake City UT
419 PM MDT Sat Apr 11 2026

WYC041-112230-
/O.CON.KSLC.SV.W.0004.000000T0000Z-260411T2230Z/
Uinta WY-
419 PM MDT Sat Apr 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM MDT
FOR NORTHWESTERN UINTA COUNTY...

At 418 PM MDT, a severe thunderstorm was located 15 miles northeast
of Evanston, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Ragen and Leroy.

This includes Interstate 80 in Wyoming between mile markers 9 and 32.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4129 11045 4122 11088 4154 11097 4159 11071
      4158 11054
TIME...MOT...LOC 2218Z 245DEG 32KT 4137 11070 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

STW

751 
WWUS55 KSLC 112226
SVSSLC

Severe Weather Statement
National Weather Service Salt Lake City UT
426 PM MDT Sat Apr 11 2026

WYC041-112233-
/O.EXP.KSLC.SV.W.0004.000000T0000Z-260411T2230Z/
Uinta WY-
426 PM MDT Sat Apr 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN UINTA COUNTY WILL
EXPIRE AT 430 PM MDT...

The storm which prompted the warning has moved out of much of the 
initial warning area. Therefore, the initial warning area will be 
allowed to expire. However gusty winds are still possible with this 
thunderstorm.

Remember, a Severe Thunderstorm Warning still remains in effect for
northeastern Uinta County until 515 PM MDT.

LAT...LON 4129 11045 4122 11088 4154 11097 4159 11071
      4158 11054
TIME...MOT...LOC 2223Z 244DEG 27KT 4139 11066 

$$

STW

Area Forecast Discussion
National Weather Service Salt Lake City UT
1111 AM MDT Sat Apr 11 2026

.UPDATE...Quick update AFD today due to widespread convection
impacting the region.

Looking at the current mesoanalysis, SBCAPE values have increased
through the morning, averaging 500-1000 J/kg based on the latest
mesoanalysis. Deep layer shear is more than sufficient...with a
broad area of 0-6KM shear in excess of 40-50 kts across the
Beehive State. A dry slot will shift north and east with time,
clearing convection across southern Utah by late afternoon.

Main threats today are small hail (less than 5% chance of hail in
quarter size or larger), strong winds in excess of 58 mph with
thunderstorms (5-10% chance across northern and eastern Utah) and
localized flash flooding across portions of south central and
southeastern Utah. The most at risk locations for flash flooding
include Capitol Reef National Park, the Grand Staircase National
Monument, the San Rafael Swell, western Canyonlands and Glen
Canyon National Recreation Area.

The threat of flash flooding will end across southern Utah by 4-5
PM. The threat for organized convection across northern Utah,
Uinta County, WY and eastern Utah will diminish after 5 PM.

Ahead of cold front crossing the region Sunday, expect a greater
than 70% chance of wind gusts in excess of 45 mph across
southwestern and west central Utah, the Sevier Valley and Castle
Country. These areas will likely need wind advisories with this
package.

Key messages and the aviation AFD are updated. The previous AFD
follows for the remainder.

&&

.KEY MESSAGES...

- A marginal risk for severe thunderstorms (5-10% chance of wind
  gusts in excess 58 mph) is outlooked for portions of northern
  and eastern Utah this afternoon and evening.

- Wind gusts in excess of 45 mph will occur across southwest and
  west central Utah, the Sevier Valley and Castle Country Sunday
  afternoon and evening.

- A storm system will bring unsettled conditions Sunday into
  Tuesday with periods of valley rain and accumulating mountain
  snow. The heaviest mountain snow is expected Monday into
  Tuesday.

- Freezing conditions will occur in the central and southern
  valleys Tuesday night into Wednesday morning and across most
  valleys including the Wasatch Front Thursday night into Friday
  morning.

&&

.DISCUSSION (Previous, issued at 1002 PM 04/10)...A broad storm
system is moving onshore along the California coast this evening,
putting Utah and southwest Wyoming under a breezy southwest flow
aloft. This flow is drawing enough moisture northward for the
development of scattered showers and thunderstorms early today,
with many of these storms producing gusty winds, some in excess of
40 mph. A few light showers remain and will continue to dissipate
into the overnight hours.

The California trough is on track to weaken significantly as it
moves onshore, eventually crossing northern Utah Saturday
afternoon and evening. The flow aloft is no longer expected to
increase much with the passage of the trough, so the potential for
wind gusts in excess of 40 mph has dropped to the 20 to 30 percent
range. While it would not be surprising to see isolated gusts in
excess of 40 mph, the areal extent and anticipated duration of
these winds would not warrant a Wind Advisory. Associated showers
and storms will be a bit more widespread compared to the last
couple of days, but the best coverage will be confined to areas
east of I-15, primarily over northern Utah. Still, any storms that
move over rain sensitive areas could bring the threat of flash
flooding.

As the weakening system exits the forecast area, another broad low
will approach the California coast. Guidance appears to be
converging on a solution for this low that would slowly track it
across the Great Basin and eventually into Utah and southwest
Wyoming Sunday into early Tuesday. There is high confidence that
this will bring substantial cooling to the area, with highs below
seasonal normals by Monday. The storm and associated cold front
will also bring unsettled conditions and the potential for
accumulating mountain snow, though totals overall look a bit less
impressive than they have the past couple of days. This is because
the system ultimately becomes a bit moisture starved and more
guidance is showing the system weakening somewhat as it moves
through, though not to the extent of the first system.

A drier zonal flow is expected to develop for the midweek period,
but long range guidance is showing the potential for a colder
storm system impacting the area by late in the work week, bringing
a chance of snow for most valleys as well as the mountains for day
seven.

&&

.AVIATION (Updated as of 1110 AM 4/11)...KSLC...VFR conditions
will prevail with some isolated thunderstorms present into the
afternoon hours. These thunderstorms will cause a brief drop into
MVFR as they pass with increased and more variable wind speeds.
Prevailing winds will be from a southerly direction before
shifting this afternoon. This shift will be a gradual shift to the
southwest then west with continued gusty winds. Winds will calm
overnight, before picking up again along a diurnal trend tomorrow.
More shower and thunderstorm chances again tomorrow, but later in
the day than what we have seen today.

.REST OF UTAH AND SOUTHWEST WYOMING...Broadly VFR with isolated
areas of thunderstorms causing brief drops into MVFR this
afternoon into early evening. Winds will be more southwesterly
across southern Utah with more of a westerly component to the
north. Gusty synoptic winds through the day today falling
overnight along the usual diurnal curve. Winds pick up again
tomorrow from the south. More shower and thunderstorm chances on
Sunday, but generally later in the day than we have seen today.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.
WY...None.
&&

Kruse/Carletta

For more information from NOAA's National Weather Service visit...
http://weather.gov/saltlakecity

Preliminary Local Storm Report
National Weather Service Salt Lake City UT
157 PM MDT Sat Apr 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0154 PM     Hail             2 W Logan               41.72N 111.87W
04/11/2026  M1.25 Inch       Cache              UT   Public

            Report from mPING: Half Dollar (1.25 in.).

&&

CRK

Preliminary Local Storm Report
National Weather Service Salt Lake City UT
202 PM MDT Sat Apr 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0201 PM     Hail             Hyrum                   41.63N 111.84W
04/11/2026  M0.70 Inch       Cache              UT   Public

&&

CRK

Special Weather Statement
National Weather Service Salt Lake City UT
242 PM MDT Sat Apr 11 2026

UTZ101-112115-
Great Salt Lake Desert and Mountains UT-
242 PM MDT Sat Apr 11 2026

...A strong thunderstorm will impact portions of central Tooele
County through 315 PM MDT
...

At 242 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles south of Clive, or 27 miles northwest of Dugway English
Village, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Delle, Clive, and Skull Valley.

This includes Interstate 80 in Utah between mile markers 44 and 74.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4036 11318 4069 11334 4087 11276 4047 11254
TIME...MOT...LOC 2042Z 248DEG 25KT 4051 11311

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

STW

Special Weather Statement
National Weather Service Salt Lake City UT
302 PM MDT Sat Apr 11 2026

UTZ108>110-112-112145-
Wasatch Back UT-Bear Lake and Bear River Valley UT-
Western Uinta Mountains UT-Wasatch Mountains I-80 North UT-
302 PM MDT Sat Apr 11 2026

...Strong thunderstorms will impact portions of east central Weber,
southwestern Rich, central Morgan and northwestern Summit Counties
through 345 PM MDT
...

At 302 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 17 miles northeast of Morgan to near East
Canyon State Park. Movement was northeast at 30 mph.

HAZARD...Wind gusts of 50 to 55 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
East Canyon State Park, Henefer, Emory, Causey Reservoir, and
Croydon.

This includes the following highways...
 Interstate 84 between mile markers 107 and 119.
 Interstate 80 in Utah between mile markers 170 and 184.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4157 11119 4149 11119 4138 11122 4133 11121
      4132 11117 4108 11118 4090 11163 4131 11161
      4160 11120
TIME...MOT...LOC 2102Z 227DEG 24KT 4127 11152 4094 11156

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...55 MPH

JCW

Special Weather Statement
National Weather Service Salt Lake City UT
312 PM MDT Sat Apr 11 2026

UTZ108-110>112-112145-
Wasatch Back UT-Western Uinta Mountains UT-Wasatch Mountains I-
80 North UT-Wasatch Mountains South of I-80 UT-
312 PM MDT Sat Apr 11 2026

...A strong thunderstorm will impact portions of south central Morgan
and west central Summit Counties through 345 PM MDT
...

At 312 PM MDT, Doppler radar was tracking a strong thunderstorm near
North Snyderville Basin, or 9 miles southwest of Coalville, moving
northeast at 35 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Coalville, Summit Park, Oakley, East Canyon State Park, Wanship,
South Snyderville Basin, North Snyderville Basin, Hoytsville, Echo,
Parleys Summit, Echo Reservoir, Kimball Junction, Rockport State
Park, and Snyderville.

This includes the following highways...
 Interstate 80 in Utah between mile markers 139 and 169.
 US Route 40 between mile markers 0 and 3.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4067 11157 4077 11165 4090 11163 4108 11118
      4082 11100
TIME...MOT...LOC 2112Z 239DEG 28KT 4082 11153

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

STW

Special Weather Statement
National Weather Service Salt Lake City UT
338 PM MDT Sat Apr 11 2026

UTZ108>110-112-WYZ021-112230-
Wasatch Back UT-Bear Lake and Bear River Valley UT-
Western Uinta Mountains UT-Wasatch Mountains I-80 North UT-
Southwest Wyoming WY-
338 PM MDT Sat Apr 11 2026

...Strong thunderstorms will impact portions of southeastern Rich,
east central Morgan, northwestern Summit and western Uinta Counties
through 430 PM MDT
...

At 337 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 11 miles south of Woodruff to 11 miles
southwest of Evanston to near Coalville. Movement was northeast at 30
mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Evanston, Ragen, Wahsatch, Hoytsville, Castle Rock, Almy, Altamont,
Piedmont, and Leroy.

This includes the following highways...
 Interstate 80 in Wyoming between mile markers 1 and 25.
 Interstate 80 in Utah between mile markers 158 and 159, and between
mile markers 176 and 196.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4158 11060 4144 11056 4117 11061 4101 11078
      4084 11140 4116 11127 4144 11131 4158 11097
TIME...MOT...LOC 2137Z 242DEG 28KT 4136 11119 4117 11115 4094 11129

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

STW