Thunderstorms continued across northern Utah at times during the last week of July, and a couple of these storms produced severe wind gusts.
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.
Thunderstorms continued across northern Utah at times during the last week of July, and a couple of these storms produced severe wind gusts.
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, 1:35 PM MST, 7 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 235 PM MDT FRI JUL 24 2015 .SYNOPSIS...SOUTHWESTERLY FLOW ALOFT WILL PREVAIL ACROSS THE REGION THROUGH THE WEEKEND. MOISTURE WILL REMAIN CONFINED TO FAR NORTHWEST UTAH THROUGH TONIGHT...OTHERWISE A DRY AIRMASS WILL SETTLE ACROSS THE AREA. && .DISCUSSION...DRY SOUTHWESTERLY FLOW ON THE NORTHWEST SIDE OF AN UPPER-LEVEL RIDGE CONTINUES TO RESULT IN CLEAR SKIES FOR THE MAJORITY OF THE CWA. THE EXCEPTIONS ARE OVER THE FAR SOUTHEAST WHERE RETURN FLOW AROUND THE RIDGE HAS GENERATED SOME CLOUD COVER...AND THE FAR NORTHWEST WHERE ISOLATED SHOWERS AND STORMS ARE STILL EXPECTED THIS AFTERNOON AND EVENING AS A WEAK SHORTWAVE MOVES THROUGH. SATURDAY AND SUNDAY...A VERY PLEASANT WEEKEND IS ANTIPICATED AS DRY SOUTHWESTERLY FLOW CONTINUES. TEMPERATURES WILL WARM UNDER CLEAR SKIES AHEAD OF AN UPPER-LEVEL TROUGH ADVANCING EASTWARD FROM THE PACIFIC...WITH SUNDAY LIKELY THE WARMEST DAY DURING THE FORECAST PERIOD. MONDAY...A FAIRLY IMPRESSIVE UPPER-LEVEL TROUGH FOR JULY WILL PASS JUST NORTHWEST OF THE CWA...FROM IDAHO INTO MONTANA. A WEAK SURFACE TROUGH WILL ACCOMPANY THIS FEATURE WITH SOME GUSTY WINDS POSSIBLE BEFORE AND AFTER ITS PASSAGE ON MONDAY. PRECIPITATION IS NOT EXPECTED WITH THIS SYSTEM...AS ANY MOISTURE ASSOCIATED WITH TEH SYSTEM WILL BE CONCENTRATED FURTHER NORTH. TUESDAY THROUGH FRIDAY...COLD AIR ADVECTION BEHIND THE UPPER-LEVEL TROUGH ON MONDAY AND TUESDAY WILL LEAD TO VERY PLEASANT CONDITIONS OVER THE NORTHERN CWA WITH HIGH TEMPERATURES UP TO 15 DEGREES BELOW NORMAL ON TUESDAY. AN UPPER-LEVEL RIDGE WILL BEGIN BUILDING OVER THE WESTERN U.S. FOLLOWING THIS SYSTEM...AND TEMPERATURES WILL INCREASE THROUGHOUT THE WEEK. BY THURSDAY AND FRIDAY...THE EC SUGGESTS THAT SOME MOISTURE WILL WORK ITS WAY INTO THE SOUTHERN CWA...BUT THE GFS DISAGREES AND CONFIDENCE IN THIS FORECAST IS LOW. && .AVIATION...SOUTHERLY WINDS AT THE KSLC TERMINAL ARE EXPECTED TO SHIFT TO THE NORTHWEST BETWEEN 21Z AND 22Z. THERE IS A 30 PERCENT CHANCE THIS SHIFT WILL OCCUR EVEN LATER OR WILL NOT OCCUR AT ALL. WINDS IF THEY DO SHIFT WILL RETURN TO SOUTHERLY AROUND 04Z. && .FIRE WEATHER...A DRYING AND WARMING TREND WILL CONTINUE ACROSS UTAH THROUGH THE UPCOMING WEEKEND. TWO AREAS OF MOISTURE CURRENTLY OVER EXTREME NORTHWEST UTAH AND NEAR THE FOUR CORNERS REGION WILL FUEL A FEW SHOWERS AND THUNDERSTORMS THIS EVENING. A STRONG AND UNSEASONABLY COLD UPPER LEVEL TROUGH WILL SETTLE INTO THE PACIFIC NORTHWEST SUNDAY...THEN SWING EAST ACROSS THE NORTHERN ROCKIES EARLY NEXT WEEK. THE ASSOCIATED COLD FRONT WILL SETTLE INTO NORTHWEST UTAH LATE SUNDAY NIGHT/EARLY MORNING...THEN SWEEP SOUTH ACROSS BUT EXTREME SOUTHERN UTAH THROUGH MONDAY NIGHT. DRY AIR AHEAD OF THE FRONT WILL LIMIT PRECIPITATION. WINDS WILL BE THE MAIN ISSUE BOTH AHEAD OF AND BEHIND THE FRONT SUNDAY AFTERNOON THROUGH MORNING AFTERNOON. LOW HUMIDITIES AND STRONG SOUTHERLY WINDS OVER WEST- CENTRAL AND SOUTHWEST UTAH SHOULD CREATE CRITICAL FIRE WEATHER CONDITIONS IN THE ZONES WHICH CURRENTLY HAVE DRY FUELS. COOL TEMPERATURES AND MODESTLY HIGHER HUMIDITIES BEHIND THE FRONT WILL PERSIST THROUGH TUESDAY NIGHT. A WARMING TREND WILL DEVELOP AGAIN MIDWEEK AS HIGH PRESSURE ALOFT SETTLES OVER THE GREAT BASIN. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && PUBLIC...RUTZ AVIATION...WILENSKY FIRE WEATHER...CONGER FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE) FOR FREQUENTLY ASKED QUESTIONS ABOUT THE AREA FORECAST DISCUSSION VISIT... HTTP://WEATHER.GOV/SALTLAKECITY/GENERAL/AFD_FAQS.PHP (ALL LOWER CASE)
The Salt Lake City radar (KMTX), 71 km away, was scanning. The volume nearest the first event began at 03:41 UTC.
2 thunderstorm wind. Local standard time, as filed.
The Diddle Knoll sensor in the Dugway Proving Ground mesonet recorded a peak wind gust of 58 mph.
A line of thunderstorms moved through northern Utah, and a maximum wind gust of 59 mph was recorded at the Lakeside Mountain sensor.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2015Every state in 2015This day in weather historyWarnings in Utah, July 2015
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: 596941, 596943.