A cold front moved through Utah, and the northwest flow intensified behind it, creating gusty winds in Utah's west desert.
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.
A cold front moved through Utah, and the northwest flow intensified behind it, creating gusty winds in Utah's west desert.
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, 4:03 AM MST, 4 hours 27 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 503 AM MDT MON APR 22 2013 .SYNOPSIS...A MOSTLY DRY COLD FRONT WILL MOVE SOUTH ACROSS UTAH TODAY WITH A COLD AIRMASS REMAINING IN PLACE THROUGH TUESDAY. A SECOND DRY COLD FRONT ON WEDNESDAY WILL KEEP THE AIRMASS COOL. A SLOWLY WARMING NORTHWEST FLOW WILL FOLLOW FOR THURSDAY THROUGH SATURDAY. && .DISCUSSION...A FAIRLY VIGOROUS AND UNSEASONABLY COLD SHORT WAVE TROF IS DROPPING INTO THE NRN PLAINS TODAY WITH THE TAIL END OF THIS FEATURE CROSSING NRN UT. THIS WILL SEND A STRONG BUT MOISTURE STARVED COLD FRONT THRU THE CWA TODAY WITH COLD TEMPERATURES AND GUSTY NORTH WINDS IN ITS WAKE. THE BEST INSTABILITY WILL BE OVER THE NERN 1/4 OF THE CWA CLOSEST TO THE COLD POOL ALOFT AND SHOULD BE ENOUGH FOR ISOLATED TO SCATTERED SHOWERS TODAY INTO EARLY TONIGHT. THESE WILL BE SNOW DOWN TO ABOUT 6000 FT THIS MORNING LOWERING TO THE VALLEY FLOORS THIS AFTN AS THE COLDER AIRMASS SPREADS IN BUT WITH LITTLE OR NO ACCUMULATION...EVEN AT HIGHER ELEVATIONS. IT SHOULD BE FAIRLY BREEZY ACROSS PRETTY MUCH THE ENTIRE CWA TODAY WITH THE STRONGEST WINDS IN DOWNSLOPE AREAS IN NORTHWEST FLOW. LOCALLY STRONG WINDS WILL PERSIST ACROSS THE FAR SOUTH TONIGHT. LOCAL STUDY INDICATES A POTENTIAL WARNING LEVEL EVENT FOR GAP WINDS IN WASHINGTON COUNTY. HAVE ADVISORY LEVEL WINDS IN THE FORECAST AT THIS TIME AND DAY CREW MAY NEED TO ISSUE A WIND HIGHLIGHT IF LATER MODEL RUNS CONTINUE TO SHOW THESE CONDITIONS. CLOUDS LINGER INTO TONIGHT ACROSS THE NORTH BUT CLEARING LATER IN THE NIGHT AND DIMINISHING WINDS SHOULD ALLOW TEMPS TO REACH THE 20S IN THE NORMALLY COLDER LOCATIONS IN THE WASATCH FRONT AND CACHE VALLEYS. SO WE ALSO MAY NEED ANOTHER FREEZE HIGHLIGHT FOR PORTIONS OF NWRN UT. THE EASTERN BASINS WILL STILL BE BREEZY WITH THE COLDEST AIRMASS JUST SPREADING IN SO THEY SHOULD ESCAPE A HARD FREEZE TONIGHT AND TUE MORNING. THE NEXT SHORT WAVE IN THE NWLY FLOW STARTS TO SPREAD HIGHER CLOUDS INTO THE NRN CWA TUE AFTN WITH THE MODELS INDICATING A FAIRLY THICK DECK OF MID/HIGH CLOUDS FOR A TIME TUE NIGHT. THIS NEXT WAVE RE-ENFORCES THE COLD AIRMASS IN PLACE BUT THE LACK OF ANY DEEP MOISTURE SHOULD PRECLUDE ANY CHANCE OF PRECIP. THE COOL NWLY FLOW PERSISTS THU THRU FRI PREVENTING A STRONG WARM UP. MED RANGE MODELS START TO DIVERGE AFTER FRI WITH THE GFS AND EC BECOMING INCREASINGLY OUT OF PHASE SO FORECAST CONFIDENCE DROPS OFF RAPIDLY AFTER FRI. && .AVIATION...NORTHWEST WINDS AT THE SLC TERMINAL WILL INCREASE THROUGH THE DAY...WITH A 20 PERCENT CHANCE OF GUSTS TO 30 MPH AFTER 18Z. THERE IS ALSO A CHANCE OF SHOWERS AT THE TERMINAL THROUGH THE DAY. ANY PRECIPITATION THROUGH 23Z SHOULD FALL AS RAIN...WITH THE MOST LIKELY IMPACT BEING PERIODS OF CEILINGS BELOW 7000FT. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && WILENSKY/SCHOENING 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 618 AM MDT MON APR 22 2013 UTZ001>016-019>021-517-518-WYZ021-231200- 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- 618 AM MDT MON APR 22 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF UTAH AND SOUTHWEST WYOMING. .DAY ONE...TODAY AND TONIGHT A COLD FRONT WILL SWEEP SOUTH THROUGH MOST OF THE OUTLOOK AREA TODAY. SCATTERED MOUNTAIN SNOW SHOWERS ARE EXPECTED ACROSS THE NORTH BUT WILL BRING LITTLE IF ANY ACCUMULATION. LOCALLY WINDY CONDITIONS WILL DEVELOP BEHIND THE FRONT AS IT CROSSES THE AREA. WINDS COULD BECOME STRONG ACROSS PORTIONS OF WASHINGTON COUNTY AS THE FRONT CROSSES FAR SOUTHERN UTAH TONIGHT. THE COLD AIRMASS BEHIND THE FRONT WILL ALLOW TEMPERATURES TO DROP BELOW FREEZING ACROSS MUCH OF THE AREA TONIGHT. A HARD FREEZE IS POSSIBLE IN SOME OF THE NORMALLY COLDER SPOTS IN THE WASATCH FRONT AND CACHE VALLEYS AS WELL AS ACROSS THE NORTHWEST DESERTS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE COLD AIRMASS WILL CONTINUE TO BRING THE THREAT OF A HARD FREEZE EARLY TUESDAY TO SOME OF THE NORMALLY COLDER SPOTS IN THE WASATCH FRONT AND CACHE VALLEYS AS WELL AS ACROSS THE NORTHWEST DESERTS. STRONG WINDS WILL ALSO CONTINUE ACROSS PORTIONS OF WASHINGTON COUNTY THROUGH TUESDAY MORNING. .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 TRAVEL IMPACTS VISIT... HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX
1 high wind. Local standard time, as filed.
Gusty northwest winds occurred across the west desert, with peak recorded wind gusts of 68 mph at the SR-30 at Curlew Junction sensor, and 58 mph at Diddle Knoll.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2013Every state in 2013This day in weather historyWarnings in Utah, April 2013
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: 448888.