2 miles northwest of Cisco, Utah or 39 miles northeast of Moab, 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 GJT wrote it up.
The Diamond Canyon Fire started in mid July due to a lightning strike 13.2 miles northwest of Cisco, Utah or 39 miles northeast of Moab, 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 Grand Junction, CO wrote its last area forecast discussion before the first event at Jul 15, 5:01 AM MST, 2 hours 31 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Grand Junction CO 601 AM MDT Tue Jul 15 2025 .KEY MESSAGES... - Above-normal temperatures remain status quo through the seven- day forecast though a slight downward trend is expected after midweek. - Outflow winds...lightning and storms with little rainfall remain threats through midweek. - The trend for increased moisture by the end of the week continues to boost confidence that storms will transition from dry to wet. Storm coverage should increase as a result of the moisture as well from late week into the weekend. && .SHORT TERM /THROUGH WEDNESDAY/... Issued at 334 AM MDT Tue Jul 15 2025 Satellite imagery shows the high pressure that models place over the Desert Southwest centered on western Arizona has developed farther north about 75 miles south-southeast of Ely NV as a well defined anticyclonic flow with weak disturbances rotating around it. One of these disturbances is moving into northern Utah producing an area of scattered light showers that will push southeast through northeastern Utah and northwestern Colorado through the morning hours. High res models have picked up on this signal supporting this convective activity with showers changing over to thunderstorms by noon due to diurnal heating. Coverage of showers and thunderstorms rapidly spread across much of the higher terrain of eastern Utah and Western Colorado through the afternoon with the southern mountains continuing to be favored with moisture moving up from the southwest. Concerns remain localized areas of near critical fire weather conditions with temperatures remaining five degrees above normal, very dry lower layers of the atmosphere and breezy west winds. Additionally, the convective activity will produce areas of dry lightning favoring the northern and central mountains, and all of these storms will be capable of producing outflow gusts over 50 mph due to the dry lower layers. 30% chances for wetting rain remains limited mostly to the Uinta Mountains in eastern Utah the the San Juan Mountains in southern Colorado. Look for these storms to diminish through the evening hours with a few isolated showers continuing through Tuesday night. The weak monsoonal pattern will continue to pull moisture north out of Mexico through the Desert Southwest and into the region overnight Tuesday improving chances for wetting rain Wednesday into the latter half of the week. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... Issued at 337 PM MDT Mon Jul 14 2025 On Wednesday, a shortwave trough is progged to pass through Montana and Wyoming to the north which will work to flatten the upper-level heights locally. In the zonal upper-level flow north of I-70, PWATs rise to 125-150% of normal leading to higher chances of afternoon convection over the high terrain north of I-70. In the meantime, the southern moisture feed continues to advect enough moisture northward along the Divide for another round of afternoon convection over the San Juans. High pressure builds once more on Thursday another round of afternoon showers and storms, especially over the southern mountains. With a southwesterly flow pattern setting up aloft, moisture advection begins to intensify. Most of that moisture arrives to the local area on Friday leading to more numerous showers and storms across eastern Utah and western Colorado by the afternoon hours. There remains a lot of uncertainty for how effective these showers and storms will be at producing wetting rains as it will likely take some time to saturate the lower levels and there's also are notable differences in moisture between the global ensembles. With above-normal PWATs remaining in place through the weekend, afternoon/evening showers and storm chances persist. With increasing moisture and cloud cover, high temperatures begin a steady decline towards more seasonable temperatures by the time the weekend arrives. However, this will also prevent nighttime temperatures from cooling off as much. Lows are projected to be 5-10 degrees above normal through much of the extended forecast. && .AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/... Issued at 549 AM MDT Tue Jul 15 2025 A isolated to scattered high-based overnight showers continue to push into the region this morning producing mostly virga with outflow gusts to 40+ kts possible. Expect VFR conditions with light winds through 18Z after which winds will pick up from the west to northwest along with isolated to scattered showers and thunderstorms lasting into the evening. Wild fires in the region are producing heavy smoke that may periodically impact the central and southern TAF sites with reduced visibility through the TAF period, especially KGUC and KMTJ. && .GJT WATCHES/WARNINGS/ADVISORIES... CO...None. UT...None. && SHORT TERM...DB LONG TERM...KAA AVIATION...DB
Hazardous Weather Outlook National Weather Service Grand Junction CO 428 AM MDT Tue Jul 15 2025 COZ001>014-017>023-UTZ022>025-027>029-161030- Lower Yampa River Basin-Central Yampa River Basin- Roan and Tavaputs Plateaus-Elkhead and Park Mountains- Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor- Central Colorado River Basin-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- Central Gunnison and Uncompahgre River Basin- West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley- Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains- Southwest San Juan Mountains-Paradox Valley/Lower Dolores River- Four Corners/Upper Dolores River-Animas River Basin- San Juan River Basin-Southeast Utah-Eastern Uinta Mountains- Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat- La Sal and Abajo Mountains-Canyonlands/Natural Bridges- 428 AM MDT Tue Jul 15 2025 This Hazardous Weather Outlook is for northwest Colorado, southwest Colorado, west central Colorado, east central Utah, northeast Utah and southeast Utah. .DAY ONE...Today and tonight. Hot and dry conditions keep temperatures trending 5 degrees above average. Scattered showers and isolated thunderstorms on the terrain increase this afternoon with dry lightning and gusty outflows possible under collapsing storms. Wildfire smoke will remain visible across the central and southern areas of the CWA. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot and dry conditions will continue through the week. Afternoon showers and storms on terrain will remain in the forecast, increasing in coverage through the latter half of the week. Increasing moisture will limit chances for dry lightning later in the week and bring increased chances for wetting rain across the higher terrain. Wildfire smoke will remain visible for much of eastern Utah and western Colorado though the wetting rains later in the week could help diminish smoke. Conditions dry out Sunday into early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The national radar mosaic for the moment the first event began.
1 wildfire. Local standard time, as filed.
The Diamond Canyon Fire started in mid July due to a lightning strike 13.2 miles northwest of Cisco, Utah or 39 miles northeast of Moab, Utah. The fire grew to 323 acres before it was contained in late July. The estimated cost to date was $1 million.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2025Every state in 2025This day in weather historyWarnings in Utah, July 2025
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: 1285480.