Mid-level moisture returned to Utah on April 22, and one severe wind gust was recorded from a high-based thunderstorm.
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.
Mid-level moisture returned to Utah on April 22, and one severe wind gust was recorded from a high-based thunderstorm.
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 Apr 22, 9:14 AM MST, 3 hours 56 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1014 AM MDT WED APR 22 2015 .SYNOPSIS...AN UPPER LEVEL LOW PRESSURE SYSTEM TO THE SOUTHWEST OF UTAH WILL SEND MOISTURE NORTH ACROSS UTAH THE NEXT COUPLE OF DAYS. AN UPPER TROUGH MOVING ACROSS THE NORTHERN ROCKIES WILL BRING A COLD FRONT THROUGH THE AREA THURSDAY...FOLLOWED BY A STRONGER STORM SYSTEM THIS WEEKEND. && .DISCUSSION...SCATTERED LIGHT SHOWERS COVERING MUCH OF SOUTHERN AND CENTRAL UTAH ARE ASSOCIATED WITH THE UPPER LOW CURRENTLY POSITIONED TO THE SOUTHWEST OF UTAH. THIS LOW WHICH HAS BEEN DRIFTING NORTH OVERNIGHT WILL STALL NEAR KLAS SOMETIME THIS AFTERNOON. THE BEST ORGANIZED SHOWERS EXIST NEAR AND SOUTH OF THE DEFORMATION AXIS ALONG THE NORTHERN FLANK OF THE LOW ACROSS CENTRAL UTAH. THE AXIS WILL DRIFT A LITTLE FURTHER NORTH AND REMAIN THE FOCUS OF CONVECTIVE PRECIP THROUGH AT LEAST MID-AFTERNOON. OUTSIDE OF THE DEFORMATION AXIS SUFFICIENT MOISTURE AND GOOD DAYTIME HEATING SHOULD SPAWN SCATTERED TERRAIN-BASED CONVECTION MAINLY SOUTH OF THE AXIS LATE THIS AFTERNOON/EARLY EVENING. THE SOUTHWARD RETREAT OF THE WEAKENING UPPER LOW WILL END MOST OF THE REMAINING CONVECTION OVERNIGHT. THE MOISTURE ALREADY IN PLACE WILL REMAIN OVER THE AREA INTO THURSDAY. A SHORTWAVE MOVING EAST ACROSS THE NORTHERN ROCKIES WILL NUDGE A WEAK COLD FRONT INTO NORTHERN UTAH. THIS FRONT COULD SERVE AS A FOCUS OF CONVECTION DURING THE DAY. DOWN SOUTH THE REMNANT OF THE UPPER LOW COULD SUPPORT ADDITIONAL CONVECTION ACROSS THE SOUTHERN MOUNTAINS BY AFTERNOON. IN BETWEEN TERRAIN- BASED CONVECTION WILL BE THE MAIN DRIVER OF CONVECTION DURING THE AFTERNOON/EARLY EVENING. NO UPDATES PLANNED TO THE SHORT TERM FORECAST AT THIS TIME. && .AVIATION...THE SLC TERMINAL WILL SEE VFR CONDITIONS THROUGHOUT THE DAY WITH INCREASING CLOUDS THIS AFTERNOON. SOUTHEAST WINDS ARE EXPECTED TO SHIFT TO THE NORTHWEST BETWEEN 18Z AND 20Z. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && PUBLIC...CONGER AVIATION...TRAPHAGAN 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)
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SALT LAKE CITY UT 552 AM MDT WED APR 22 2015 UTZ001>016-019>021-517-518-WYZ021-231230- CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT- SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT- GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS- WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80- WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS- WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL- SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH- UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH- GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS- SOUTHERN MOUNTAINS-SOUTHWEST WYOMING- 552 AM MDT WED APR 22 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF UTAH AND SOUTHWEST WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED SHOWERS ALONG WITH A FEW THUNDERSTORMS WILL INCREASE FROM SOUTH TO NORTH ACROSS THE FORECAST AREA TODAY. WHILE RAINFALL WILL GENERALLY BE LIGHT...GUSTY OUTFLOW WINDS ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY AN INCREASING CHANCE OF PRECIPITATION IS EXPECTED EACH DAY THROUGH THE END OF THE WEEK AS MOISTURE CONTINUES TO SPREAD INTO THE AREA. A COLD FRONT WILL PUSH THROUGH THE AREA LATE SATURDAY INTO SUNDAY PRODUCING VALLEY RAIN ALONG WITH ACCUMULATING SNOW IN THE MOUNTAINS. GUSTY WINDS WILL BE POSSIBLE BEHIND THE FRONT SATURDAY NIGHT AND SUNDAY...ESPECIALLY ACROSS THE NORTHWEST AND EASTERN VALLEYS OF UTAH. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE) FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT... HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX
The Salt Lake City radar (KMTX), 146 km away, was scanning. The volume nearest the first event began at 20:08 UTC.
1 thunderstorm wind. Local standard time, as filed.
The Interstate 15 at Beer Creek sensor recorded a maximum wind gust of 58 mph.
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, April 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: 571905.