Sufficient moisture in combination with a shortwave impulse brushing by the area resulted in numerous strong thunderstorm wind gusts in addition to isolated instances of flash flooding.
Every event with a place to put it. 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.
Sufficient moisture in combination with a shortwave impulse brushing by the area resulted in numerous strong thunderstorm wind gusts in addition to isolated instances of flash flooding.
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 Jul 24, 2:16 PM MST, 12 hours 48 minutes earlier.
Area Forecast Discussion National Weather Service Salt Lake City UT 316 PM MDT Wed Jul 24 2024 .SYNOPSIS...High pressure over the Great Basin will move overhead today, resulting in near record warmth for northern Utah. Moisture will spread northward across the entire state by Thursday, resulting in the threat of showers and storms areawide. Drier air will move in for the weekend with increasing winds. && .SHORT TERM (Through 12z Friday)...Afternoon satellite and H5 analysis place the core of the upper level High pressure near the triple point of UT/NV/AZ attm...latest trends showing a slight eastward jog to the east over the last several hours. Positioned within the northeastern periphery of this is a remnant MCV (with subtle circulation coincident) providing just enough additional forcing to be a focus of convective initiation this afternoon, and will continue to be as it lifts northeastward through tonight/early tomorrow morning. A skosh more instability exists across the southwestern portions of the area this afternoon vs. 24 hours ago, largely due to the eastward shift of the high and further deepening of PWAT near the UT/NV border. Will have to continue to monitor localized flash flooding threats, including recent burn scars, through this evening as the stronger cores of late have produced observed rainfall rates as high as .50"/20 min (STP ~1"/hr) indicating the efficiency of the environment. Future coverage in the near term is expected to continue to expand across the southwest and UT/NV border region, though extent should remain scattered in nature and focused over the terrain. The aforementioned remnant MCV will gradually shift into west- central Utah tonight, then northern Utah Thursday morning maintaining some nocturnal shower potential, and potentially isolated nocturnal convection...exiting the region around midday. In wake of this wave noting a high likelihood for substantial suppression across central/northern Utah through much of the afternoon hours, even with a primed/juiced airmass in excess of 1" PWAT. CAMs do break capping leading into the evening hours in advance of a short wave poised to translate in from the west and are keying in on a more organized convection tracking W-E across much of the area late evening/overnight. Noting 90% threshold probs for winds in the 40-50mph range across the western deserts within the 00z-06z Friday window...will have to continue to monitor later runs for consistency. Additionally, given the airmass, will have to monitor heavy rain potential as well. .LONG TERM (After 12z Friday), Issued 351 AM MDT... Friday and Saturday will be the coolest days of the week throughout southwest Wyoming and Utah. After powerful ridging tracks to the east and a trough tracks far to the north, temperatures will cool to near normal. Positioned between those systems, the pressure gradient will strengthen locally, allowing for enhanced southwest winds. Wind gusts Friday will be around 25 mph in southwest Utah and southwest Wyoming. Relative humidity in the afternoon when winds peak will be from roughly 15- 25%, enhancing fire danger. Scattered afternoon showers and thunderstorms are likely. As drier conditions build in with drier southwest flow, showers and thunderstorms will taper off by around 6 p.m. throughout southern Utah. Showers and thunderstorms will last further into the evening throughout southwest Wyoming and northern Utah. Gusty, erratic outflow winds and locally heavy rainfall are likely. The trough will lift into Canada Saturday, and a broad longwave trough will build into the western U.S. With ridging positioned to the southeast, more enhanced southwest flow is forecast. Wind gusts will be slightly higher than Friday, around 30 mph. Minimum relative humidity will be slightly lower. Drier southwest flow will build in Sunday, with a dry day likely throughout southwest Wyoming and Utah. As ridging to the southeast retrogrades, winds will be lighter, but gusts around 25 mph are likely. There is good agreement that moisture will build through the week into Utah. Through the start of the week, that will largely be high- based showers and thunderstorms for much of southern Utah capable of gusty, erratic outflow winds. && .AVIATION...KSLC...VFR conditions are expected to prevail through tonight with mid and high based cloud cover forecast. Isolated thunderstorms are possible this evening with gusty outflow winds potentially impacting the terminal. Northwest winds will shift out of the southeast at 04z at light speeds. Tomorrow morning, look for light rain showers to potentially drop visibilities at the terminal with a mid level cloud deck. There is around a 10 percent risk for thunder associated with these showers tomorrow morning. .REST OF UTAH AND SOUTHWEST WYOMING...Scattered thunderstorms will once again dominate southern Utah but also spread across western Utah through this evening. These thunderstorms will be capable of producing gusty outflow winds, heavy rains, lightning and reduced visibility at area terminals. Otherwise, VFR conditions will prevail in central UT and SW WY tonight. Tomorrow morning, look for light rain showers to potentially drop visibilities across western and northern UT terminals. Gusty outflow winds may also accompany these showers with around a 10 percent risk for thunder. && .FIRE WEATHER...Scattered shower and storm development has once again formed over the southwestern portions of the district this afternoon, with spotty wetting rains within brief heavy rain focused over the higher terrain of FWZ 493/496 and portions of 495. Areal coverage of showers/storms (and attendant spotty wetting rains) will expand north and east beginning tonight as a weak wave currently over the Nevada lifts through the region. Areawide shower and storm development is expected Thursday into the overnight hours as the high pressure in place shifts east whilst weakening, allowing a trailing disturbance to provide more storm organization Thursday afternoon/evening. Noting increasing RH trends over the next 36 hours as such. Thereafter, a slot of significantly drier air and increasing southwesterly flow will begin to spread into southwestern Utah Friday, while the north will remain in a more moist environment capable of additional p.m. showers/storms Friday. Increasing southwesterly winds and further drying will bring the potential of critical fire conditions once again beginning Saturday. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...Heat Advisory until 10 PM MDT this evening for UTZ101>107-116. WY...None. && Merrill/NDeSmet/Wilson For more information from NOAA's National Weather Service visit... http://weather.gov/saltlakecity
The Cedar City radar (KICX), 62 km away, was scanning. The volume nearest the first event began at 10:01 UTC.
44 thunderstorm wind, 2 flash flood. Local standard time, as filed.
The WHITE REEF RAWS station recorded a wind gust of 63 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Mineral Mountains mesonet station recorded a wind gust of 59 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
Flash flooding was reported along Sheep Creek Road near Kodachrome Basin. The road was reported to have experienced flash flooding in several areas over a 5 to 6 mile stretch requiring heavy equipment cleanup due to mud and debris. Report noted from Kodachrome State Park official as well as NWS employee.
A strong thunderstorm resulted in flash flooding in and around Kanarraville. One house received flood damage from water, mud, and debris per Iron County Emergency Management.
The Bonneville Salt Flats mesonet station recorded a wind gust of 61 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Junction South mesonet station recorded initial peak wind gusts of 66 mph at 5:40 pm MST and 5:50 pm MST, and an additional strong gust of 65 mph at 6:00 pm MST. These winds were the result of thunderstorm outflow, with the thunderstorm also producing 0.27 inches of rain in 10 minutes at the mesonet site.
The ARNOSA mesonet station began to record wind gusts at or above 58 mph at 5:52 pm MST, increasing to a peak wind gust of 76 mph at 6:07 pm MST, with a final severe wind gust of 75 mph recorded at 6:12 pm MST. These wind gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The I-80 @ mp 29 mesonet station recorded a wind gust of 64 mph at 6:10 pm MST as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area. A following peak wind gust of 72 mph was subsequently recorded at 6:20 pm MST.
The INTERSTATE 80 mesonet station recorded an initial peak wind gust of 73 mph at 6:15 pm MST, followed by a subsequent wind gust of 61 mph at 6:20 pm MST. These wind gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The I-80 at MP 40 Knolls mesonet station recorded a wind gust of 61 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The I-80 @ Grassey mesonet station recorded a wind gust of 58 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The CAUSEWAY mesonet station recorded a wind gust of 59 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The West Granite mesonet station recorded a wind gust of 59 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The CALLAO GATE mesonet station recorded a wind gust of 58 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The JULIET ROAD mesonet station recorded a wind gust of 64 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Lakeside Mountain mesonet station began to record wind gusts at or above 58 mph (initial of 63 mph) at 7:05 pm MST, increasing to a peak wind gust of 70 mph at 7:25 pm MST, with a final severe wind gust of 58 mph recorded at 7:55 pm MST. These wind gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The SALT FLATS mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The CAMEL BACK MTN mesonet station recorded a wind gust of 64 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The SIMPSON SPRINGS mesonet station recorded a wind gust of 59 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Gunnison Island mesonet station began to record wind gusts at or above 58 mph (initial of 64 mph) at 7:35 pm MST, increasing to a peak wind gust of 76 mph at 7:45 pm MST, with a final severe wind gust of 69 mph recorded at 8:55 pm MST. These wind gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Fremont Island - Miller Hill mesonet station began to record wind gusts at or above 58 mph (initial of 61 mph) at 7:35 pm MST, increasing to a peak wind gust of 62 mph at 7:40 pm MST, with a final severe wind gust of 59 mph recorded at 7:45 pm MST. These wind gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area. A period of strong sustained winds in excess of 40 mph and occasional gusts at or above 58 mph are noted for a period of time thereafter, but were less convective in nature.
The I-80 @ Grassey mesonet station recorded a wind gust of 62 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The I-80 at MP 79 Timpie mesonet station recorded wind gusts of 58 mph at 8:10 pm MST and 8:20 pm MST as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
During the evening, two swimmers at Grantsville Reservoir were pushed away from the shore as a result of high winds (from outflow associated with convection moving into the area). At approximately 8:30 pm MST a 9-1-1 call was placed stating that a swimmer had been pushed away from the shore. While one of the swimmers managed to return to shore, the other did not surface. Recovery efforts were initially unsuccessful, but the body of the swimmer that did not return to shore was later discovered two days later.
The MARSH mesonet station recorded a wind gust of 62 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The I-80 @ mp 78 mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The I-80 at MP 81 Dolomite mesonet station recorded a wind gust of 58 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Grantsville South mesonet station recorded a wind gust of 66 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Nephi West mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Horse Haven mesonet station recorded a wind gust of 58 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The CAUSEWAY mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The KF6RAL-6 Salt Lake Marina mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The SR-201 at I-80 mesonet station recorded a wind gust of 65 mph at 1:40 am MST as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area, followed by a peak wind gust of 68 mph at 1:50 am MST.
The MARSH mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Fremont Island - Miller Hill mesonet station recorded initial peak gusts of 69 mph at 2:25 am MST and 2:30 am MST, and a final severe gust of 64 mph at 2:35 am MST. These gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Murray's Hill mesonet station recorded a wind gust of 61 at 3:10 am MST, followed by a peak gust of 63 mph at 3:20 am MST. These gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Hansel Valley mesonet station recorded an initial peak wind gust of 66 mph at 4:00 pm MST, followed by a gust of 61 mph at 4:10 pm MST, and a final severe gust of 59 mph at 4:20 pm MST. These gusts were the result of outflow winds associated with a line of thunderstorms collapsing overhead.
The Radar mesonet station recorded an initial wind gust of 62 mph at 4:40 pm MST, followed by a peak gust of 67 mph at 4:50 pm MST. Gusts of 66 mph and 58 mph were then recorded at 5:10 pm MST and 5:20 pm MST respectively. These gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Crow Mountain mesonet station recorded a wind gust of 58 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The TRAPPERS LOOP ROAD mesonet station recorded an initial peak wind gust of 61 mph at 5:40 pm MST, followed by an addition gust of 60 mph at 5:50 pm MST. These winds were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Weber Canyon mesonet station recorded a wind gust of 60 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Shepard Creek mesonet station recorded a wind gust of 59 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The Head mesonet station recorded an initial peak wind gust of 74 mph at 5:50 pm MST, followed by a wind gust of 65 mph at 6:00 pm MST. These gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
The North Ogden Divide mesonet station recorded a wind gust of 59 mph as a result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
Multiple trees were reported down at Sourdough Wilderness Ranch as a result of strong thunderstorm winds.
The SR-16 @ MP1 mesonet station recorded an initial peak wind gust of 66 mph at 6:40 pm MST. After a brief period of slightly sub-severe wind gusts, a gust of 61 mph was recorded at 7:10 pm MST followed by a final severe wind gust of 58 mph at 7:20 pm MST. These gusts were the result of outflow winds associated with a nearby cluster of showers and thunderstorms moving through the area.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Thunderstorm Wind, Tooele | 2024-07-25 | Male | In Water | Indirect |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2024Every state in 2024This day in weather historyWarnings in Utah, July 2024
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: 1197927, 1197929, 1204159, 1204158, 1192733, 1192734, 1197932, 1197938, 1197940, 1197941, 1197951, 1197942, 1197943, 1197944, 1197945, 1197948, 1197946, 1197947, 1197949, 1197955, 1197999, 1197950, 1198011, 1192732, 1198015, 1198016, 1198018, 1198019, 1198020, 1198021, 1198024, 1198026, 1198025, 1198027, 1198028, 1198029, 1198030, 1198031, 1198032, 1198033, and more.