An increase of monsoonal moisture resulted in multiple storms with microburst wind gusts in northern Utah, as well as flash flooding in portions of southern Utah.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SLC wrote it up.
An increase of monsoonal moisture resulted in multiple storms with microburst wind gusts in northern Utah, as well as flash flooding in portions of southern Utah.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Salt Lake City, UT wrote its last area forecast discussion before the first event at Jun 26, 10:17 AM UTC, 10 hours 58 minutes earlier.
Area Forecast Discussion
National Weather Service Salt Lake City UT
417 AM MDT Sun Jun 26 2022
.SYNOPSIS...Weak high pressure will steadily build into the region
through early in the week. Expectations for increased moisture
remain in tact today, setting the stage for another day with
higher potential for heavy rainfall and localized flash flooding
in central and southern Utah. Warm conditions with isolated shower
and thunderstorm activity continue through much of the week, with
a slight cooldown for northern Utah and SW Wyoming Wednesday and
Thursday.
&&
.SHORT TERM (Through 12Z/6AM Tuesday)...Early morning analysis
indicates a broad ridge extending from the Gulf Coast westward to
just off of the California coast. This ridge remains on track to
undergo gradual strengthening through Tuesday as it becomes
briefly centered across portions of the southern Great Basin and
Pacific Northwest. Blended TPW products reveal a gradual increase
in total atmospheric water vapor across southern Utah, in line
with forecasts -- and a distinct moisture plume in the 500-300mb
layer can be seen emanating NE from TS Celia, which is located
across the Eastern Pacific. This moisture plume extends across the
four-corners and into the Central Plains. Higher moisture content
today will lead to greater values of buoyancy/instability as well
as increase the potential for a greater number of convective
cores that contain heavy rainfall. The highest heavy rainfall and
attendant flash flood potential remains expected to reside
generally south of US-6 and east of I-15, while
shower/thunderstorm coverage will become gradually less numerous
and drier north and west of here. Across these fringy, less moist
areas, the risk of microbursts and gusty outflow winds will be the
primary hazard, along with isolated, dry lightning.
Light showers across SE Utah this morning today will give way to
more robust convection firing off of high terrain areas by late
morning and early afternoon. Convection is then expected to move
off of the terrain and into adjacent valley areas. Rainfall will
be enhanced where cold pools merge, and the 00Z HREF indicates a
merger of a couple of thunderstorm clusters across SE Utah this
evening to form a larger convective cluster -- and this will be
something to watch. Low to mid level flow is expected to be light
S-SSE this morning across southern Utah, providing modest upslope
support to aid in more robust convective initiation. Low to mid
level flow is forecast to become gradually west-northwest by late
afternoon and evening, which could be problematic for any
drainages oriented in this direction, as convective cells that
propagate down-basin may locally enhance flash flood potential.
Due to the heightened flash flood risk for normally dry washes,
slot canyons, and slickrock areas, a Flood Watch remains in effect
for portions of south- central and SE Utah for this afternoon and
early evening. Those planning outdoor recreation in these areas
should keep a close eye on the weather today, or consider
alternate plans.
The DESI HREF viewer offers up a visualization of QPF ranges, with
mean 24hr QPF indicated around 0.25" for favored areas of southern
Utah, especially those higher terrain areas where convection will
initiate. 24hr QPF at the high-end of the distribution tops out in
the 1-2" range across localized areas of southern Utah, and
represents a reasonable worst-case scenario where cells train
and/or merge. Slow forward propagation will increase residence
time of heavier cores as well.
Convective activity will gradually wane with the loss of daytime
heating this evening. Modest dry advection on Monday will bring
total atmospheric water vapor levels back down to those similar to
what was experienced on Saturday. Thus, the overall coverage of
shower/thunderstorm activity is expected to be less than what is
currently forecast for today. Once again on Monday,
shower/thunderstorm activity is forecast to initiate over high
terrain areas of central and southern Utah. Steering flow is
expected to become northerly around the developing ridge to our
west, favoring southern convective propagation of convection off
of terrain. Locally heavy rainfall is once again possible with
more organized cells. 24hr high-end QPF is lower, but a couple of
pockets of 1-2" rainfall reside within the high end of the distribution,
translating to an isolated flash-flood risk for Monday as well.
.LONG TERM (After 12Z/6AM Tuesday)...Monsoonal activity will be
trending slightly downward and more terrain driven as the period
progresses. High pressure followed by a more zonal pattern will
keep temperatures 5-10 degrees above average for northern Utah/SW
Wyoming during the period with southern Utah near average, aside
from Tuesday when temperatures will be a few degrees above normal.
Ridging will gradually build back in towards the end of the
period.
Clusters are in good agreement bringing a Pacific NW trough north of
the CWA Wednesday. This will act to slightly flatten the ridge and
allow temperatures to regulate a few degrees cooler after peaking on
Tuesday. Additionally, little synoptic level support will be in
place for any substantial lift throughout the period. This will keep
afternoon thunderstorm development confined to high terrain areas
closest to the highest moisture content near the four corners.
Towards the end of the period low amplitude ridging will begin to
build back in which will limit PoPs even further Friday-Sunday as
well as act to gradually increase temperatures.
Ensemble guidance is suggesting that by the end of the period, and
beyond, a more significant trough off of the west coast could
progress closer to the CWA and provide more widespread precipitation
across most of the region.
&&
.AVIATION...KSLC...VFR conditions will persist throughout the period
for the KSLC terminal. High pressure is building in which will keep
skies mostly clear. A relaxing northeast to southwest pressure
gradient has resulted in northerly winds mixed in at times with southerly
winds. A full switch to northwesterly thermal winds will likely
return by mid morning.
.REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions will persist
for northern Utah/SW Wyoming while the southern half of Utah will be
mostly VFR with afternoon thunderstorms creating intermittent
MVFR/IFR conditions. Additionally, smoke near KBCE is likely to
accumulate near the surface overnight throughout tomorrow morning
which will drop VIS to near 3SM, at times. Overall, winds will be
light and variable except for gusty erratic winds associated with
thunderstorm outflow across southern Utah.
&&
.FIRE WEATHER...Increased moisture remains on track to move into
southern and eastern Utah today, generally along and east of I-15
and along and south of US-6. Isolated dry thunderstorms are
possible west and north of these routes on the fringes of deeper
moisture. Towards the Idaho border, dry conditions are expected
today. Moving back to southern and eastern Utah, heavier cores
will produce locally heavy rainfall with an associated flash flood
threat. Showers and storms will largely develop over higher
terrain areas before drifting into adjacent valleys.It is these
areas across southern/eastern Utah where RH recovery will be
highest tonight into Monday morning. Meanwhile, a ridge of high
pressure remains on track to build across portions of the Great
Basin and Desert Southwest through Tuesday. The position of the
ridge will encourage slightly drier air to work into the region,
especially across the north. The ride will also promote a warming
trend. The warming trend will be most notable across northern Utah
and the west deserts where conditions will be drier. Enough
moisture will linger across central, southern and eastern Utah to
promote daily shower and thunderstorm activity, especially over
high terrain areas.
On Wednesday, a low pressure trough remains on track to pass
eastward across the Northern Rockies. This will flatten the
northern portion of the ridge, promoting a slight cooling trend
across northern Utah. This process could lead to locally critical
fire weather conditions on Wednesday, particularly across
southwest Utah.
Westerly flow will prevail across northern Utah Thursday and
Friday before modest ridging builds back into the area Saturday.
Latest guidance continues to suggest that a trough will approach
the Pacific Northwest by late next weekend, and this idea is
gradually becoming a more probable forecast outcome. The exact
details of this pattern evolution will need to be worked out as we
get closer. Otherwise, daily wet and dry thunderstorms are
expected through the week, especially over higher terrain areas of
central and southern Utah. A couple of upticks in activity are
possible on Wednesday and Thursday, and will be something to
watch. At this time, widespread critical fire weather conditions
are not expected, either from a combination of winds/RH or scattered
dry thunderstorms.
&&
.SLC WATCHES/WARNINGS/ADVISORIES...
UT...Flood Watch from noon MDT today through this evening for UTZ121-
124-128>131.
WY...None.
&&
ADeSmet/Mahan
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http://weather.gov/saltlakecity/general/afd_faqs.phpThe Cedar City radar (KICX), 50 km away, was scanning. The volume nearest the first event began at 21:31 UTC.
20 thunderstorm wind, 3 flash flood, 2 strong wind, 1 funnel cloud. Local standard time, as filed.
LANDSPOUT. Location: 37.760, -113.220. Video showed a landspout tornado west of Cedar City, Utah. No reports of damage were received. The time was estimated.
A flash flood occurred in Cottonwood and Burro Washes as well as Sheets Gulch. Notom-Bullfrog road was washed out.
LANDSPOUT. Location: 38.240, -112.610. Video shared via social media showed a landspout tornado near Beaver, Utah. No reports of damage were received. The time was estimated.
A microburst resulted in a wind gust of 68 mph being measured at the Causeway mesonet station.
A thunderstorm and associated outflow produced a wind gust of 67 mph recorded by the Beach mesonet station.
A thunderstorm and associated outflow resulted in a peak wind gust of 60 mph recorded by the Salt Lake International Airport Airport ASOS.
A thunderstorm and associated outflow produced a wind gust of 61 mph at the I-80 at MP 40 Knolls mesonet sation.
A thunderstorm and associated outflow resulted in wind gust of 59 mph being measured by the King Canyon mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 74 mph being measured at the Dugway V-Grid mesonet station.
Thunderstorm and associated strong outflow resulted in a peak wind gust of 89 mph being measured at the Dugway Callao Gate mesonet station. A secondary lesser wind gust to 59 mph was measured approximately 5 minutes later.
A thunderstorm and associated outflow resulted in a wind gust of 73 mph being measured at the Dugway APG mesonet station.
A thunderstorm and associated outflow resulted in a peak wind gust of 69 mph being measured by the Freemont Island Miller Hill mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 58 mph being measured by the Hat Island mesonet station.
Thunderstorm and associated outflow resulted in a wind gust of 70 mph being measured at the Dugway Simpson Springs mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 61 mph being measured at the Dugway Interstate 80 weather observing station.
A funnel cloud was observed near Panguitch by a Fire Behavior Analyst from the Left Fork Fire. The funnel could extended about one-third of the way down from the cloud base.
A thunderstorm and associated outflow produced a wind gust of 63 mph recorded by the Durand Road mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 71 mph being measured at the US-189 Deer Creek Dam mesonet station.
Flash flooding occurred in Spry and Pine Creek Canyons in Zion National Park.
A thunderstorm and associated outflow resulted in a wind gust of 62 mph being measured by the Lofty Lake Peak mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 60 mph being measured by the NW Decon Pad mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 59 mph being measured by the English Village mesonet station.
A thunderstorm and associated outflow resulted in a peak wind gust of 59 mph being measured by the Clover mesonet station.
Flash flooding occurred on Burro, Cottonwood, and Five Mile Washes, along with Sheets Gulch and on Notom-Bullfrog Road where the pavement ends.
A thunderstorm and associated outflow resulted in a wind gust of 59 mph being measured at the Provo Canyon mesonet station.
A thunderstorm and associated outflow resulted in a wind gust of 59 mph being measured by the US-189 Deer Creek Dam mesonet station.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2022Every state in 2022This day in weather historyWarnings in Utah, June 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1043600, 1043387, 1043599, 1043278, 1043282, 1043283, 1043284, 1043286, 1043289, 1043295, 1043297, 1043299, 1043300, 1043302, 1043304, 1043392, 1043306, 1043309, 1043390, 1043313, 1043318, 1043319, 1043322, 1043391, 1043325, 1043326.