Thunderstorms developed across the state on August 1, with several producing damaging outflow winds across northern Utah and isolated flash flooding in central Utah.
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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.
Thunderstorms developed across the state on August 1, with several producing damaging outflow winds across northern Utah and isolated flash flooding in central 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 Aug 1, 10:34 AM MST, 3 hours 6 minutes earlier.
Area Forecast Discussion National Weather Service Salt Lake City UT 1134 AM MDT Mon Aug 1 2022 .UPDATE... Main update this morning was to add a Flood Watch for Burn Scar Flash Flooding in Central Utah. This morning, a robust wave moving northward through Nevada continues to be the focus for advecting enhanced monsoon moisture northward across Utah. On the leading edge of the moisture advection a band of cloud cover and isolated showers is moving northward across northern Utah, with some clearing south of this axis across central Utah. Deeper moisture south of this boundary with fairly widespread surface dew points in the 50s to low 60s will fuel surface based CAPE around 1000 J/kg over much of Utah, while orographic lift over the central and southern mountains will help focus convective initiation. Forecast hodographs indicate slow moving storms around 10 knots or less moving north-northeastward, which given the orographic focus will make training, slow-moving storms the main threat for any heavy rain producing cells. Given the forecast precipitation amounts maximizing near the numerous burn scars in central Utah that are susceptible to flash flooding and debris flow have issued a Flood Watch. && .SYNOPSIS...Moisture and associated thunderstorms will spread into northern Utah today into Tuesday. Drier air is expected across the area midweek under a more westerly flow aloft before moisture returns for late week. && .SHORT TERM (THROUGH 12Z WEDNESDAY)...High pressure remains centered across New Mexico into the Texas Panhandle this morning with the ridge axis extending northwestward into southwest Idaho. A shortwave disturbance currently over southern Nevada is lifting northward. Meanwhile, an MCV is noted across southeast Utah, grazing the Glen Canyon boundaries. As the aforementioned shortwave disturbance over Nevada continues to lift northward today, the ridge will become less amplified and its axis will roll eastward, allowing southerly flow to spread north throughout Utah today. The southerly flow has already spread through central Utah, with moisture increasing in conjunction. Analysis of PWATs indicate that it already exceeds 1 inch across central Utah, and northern Utah is expected to follow suit this afternoon. With the northward spread of moisture and the shortwave disturbance lifting through eastern Nevada and western Utah, expect shower and thunderstorm activity to increase across central and northern Utah today. Central Utah is expected to be the focus for the early part of the afternoon, then this focus shifts to the north by the late afternoon and evening hours. The initial round of thunderstorms across the north will have the potential to produce gusty outflow winds before the storms trend wetter in the evening. Southern Utah will be slightly suppressed behind the aforementioned shortwave disturbance, although isolated to scattered thunderstorms with locally heavy rain will remain a possibility. As the shortwave disturbance rotates into northern Utah around the periphery of the ridge tonight, expect nocturnal thunderstorms to continue across northern Utah. This disturbance will then track east along the Utah/Idaho border tomorrow. Northern Utah and southwest Wyoming will continue to see the best chance for thunderstorms through tomorrow afternoon, with less activity across southern Utah as the airmass trends drier under a more westerly flow. In addition to the shortwave disturbance, a modest jet across northern Utah could aid in the development of some stronger or more organized storms during the morning through early afternoon hours tomorrow. Thunderstorms should taper off fairly quickly by late afternoon or early evening as the airmass becomes more stable behind the exiting disturbance. With a widespread moist airmass in place throughout the area, temperatures will trend cooler across the north over the next couple of days. Afternoon maxes today are expected to be near to just slightly above climatological normals across the north while remaining below normal across the south. For tomorrow, afternoon maxes are expected to trend below normal across most areas. .LONG TERM (After 12Z Wednesday)...Less shower and thunderstorm coverage is forecast Wednesday as a change in the pattern decreases monsoonal moisture advection into Utah. Models are in good agreement of high pressure near the four corners sliding closer to the Arizona and Utah border. This will transition synoptic flow more westerly. Precipitable water values for much of Utah are expected to be 0.8- 1", much less than the start of the week. With no shortwave or much else to provide increased forcing, convection is expected to largely be within higher terrain. Temperatures are expected to increase from the previous day, reaching right around average with fewer clouds and lower relative humidity. A trough is expected to build into the PacNW Thursday. Ensemble guidance is in good agreement that this will slide the high further eastward into the plains. That is expected to transition flow from zonal to southerly. Thursday will be a transition day between those, with increased moisture, especially in southern Utah. Increased moisture advection is expected Friday, with precipitable water values of 1-1.5" for most of Utah. Various guidance brings several shortwaves into Utah Friday through the weekend which could assist in more organized convection. The threat of flash flooding for slot canyons, dry washes, burn scars, and low-lying locations will be relatively low Wednesday, but increase Thursday. More of a threat is expected Friday through the weekend with good model agreement on increased moisture advection and increased chances for showers and thunderstorms. && .AVIATION...KSLC...Southeast winds are expected through the morning with broken mid and high clouds. Winds are expected to transition to northwest around 20Z, but confidence in winds decreases from 20-03Z as showers and thunderstorms build into northern Utah. Any nearby shower or thunderstorm could result in erratic outflow winds. Varying directions and speeds are expected. VFR conditions will prevail, but enhanced winds or heavy rain could lower conditions into MVFR for a short time. Showers are expected into the overnight, with the chance for thunderstorms decreasing. .REST OF UTAH AND SOUTHWEST WYOMING...Showers and thunderstorms are likely for southwest Wyoming, and northern and central Utah during the afternoon. Erratic outflow winds and heavy rain are possible. VFR conditions will prevail, but that could decrease into MVFR range with any nearby shower or thunderstorm. Coverage will be more isolated in southern Utah, diminishing around 03Z. Showers are expected to taper off around 06Z in central Utah and last into the overnight in southwest Wyoming and northern Utah. && .FIRE WEATHER...Increasing southerly flow combined with a weather disturbance lifting through eastern Nevada will spread moisture into northern Utah today. This will increase thunderstorm chances across northern Utah. While some thunderstorms, especially across northwest Utah, may initially be dry this afternoon, chances of wetting rain will increase through the evening hours. Meanwhile, southern Utah is expected to see less thunderstorm activity today compared to the past few days, although isolated to scattered wet thunderstorms are still expected. The weather disturbance will shift across northern Utah tonight into tomorrow morning, allowing showers and thunderstorms to continue across northern Utah through the night and into tomorrow. Behind this disturbance, thunderstorms will quickly wind down tomorrow evening with generally less activity expected on Wednesday. Moisture will then make a return for the latter portion of the week, with widespread wet thunderstorms looking like a good possibility. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...Flood Watch through this evening for UTZ102-111>113-116-117. WY...None. && Church/Cheng/Wilson For more information from NOAA's National Weather Service visit... http://weather.gov/saltlakecity For frequently asked questions about the Area Forecast Discussion visit... http://weather.gov/saltlakecity/general/afd_faqs.php
The Cedar City radar (KICX), 236 km away, was scanning. The volume nearest the first event began at 20:41 UTC.
8 thunderstorm wind, 2 flash flood, 1 debris flow. Local standard time, as filed.
Emery County dispatch reported state Route 29 was impassible from milepost 9 to Joes Valley Reservoir. Up to a foot of mud and debris was deposited across the road.
Capitol Reef National Park reported flash flooding on Sulphur Creek. Water was several feet deep and came within 2 feet or so from the bottom of the bridge on state Route 24.
A large debris flow originating off of the Dollar Ridge Fire burn scar passed through the Strawberry Pinnacles area.
A tree fell on a church in Springville.
Trees fell onto several hourse in Springville.
Several trees were uprooted or snapped off in Springville Cemetery.
A peak wind gust of 63 mph was measured by the UDOT SR-201 at I-80 automated weather station.
A peak wind gust of 58 mph was recorded at Salt Lake City International Airport.
A peak wind gust of 60 mph was measured at the UDOT SR-85 at SR-201 mesonet site.
A large tree branch fell on a vehicle in Salt Lake City. Time estimated based on radar.
A peak wind gust of 66 mph was measured by the Fremont Island 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, August 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: 1051430, 1051431, 1051432, 1051421, 1051422, 1051423, 1051429, 1051424, 1051426, 1051427, 1051428.