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Utah Storm Date Index

Every storm NOAA has recorded in Utah since January 1996 β€” wind, hail, snow and flooding β€” searchable by county, type and year. 11,426 events. Each one links back to its original NOAA record.

Most people land here trying to find the date a storm hit their house. Filter to your county, then match the date to when you first noticed damage.

County: Grand Flat and Arches
← Clear countyTooele776La Sal & Abajo Mountains542Eastern Uinta Mountains530Washington393Tavaputs Plateau388Eastern Uinta Basin377Salt Lake371Grand Flat and Arches336Southeast Utah326Canyonlands / Natural Bridges270Box Elder261Wasatch Mountains South of I-80261Kane243Utah231Grand228San Juan212Wasatch Mountains I-80 North208Great Salt Lake Desert and Mountains204Garfield181Wayne180W Summit T Nw/Se Salt Lake/Wasatch X Sc/E Utah/P X E Juab/X Nw San Pete172Salt Lake and Tooele Valleys169Northern Wasatch Front162Rich/Cache T Nw/P E C Weber/Most of Morgan/Nw Summit/Ne Salt Lake/X Ne Box Elder153Weber150Davis137Southwest Utah136Western Uinta Mountains133Wasatch Plateau/Book Cliffs129Southern Mountains121Central Mountains115W Salt Lake T X W/E Toole T X E111Ne Box Elder T X Ne/W Weber/Davis109P Nc Weber/P C Morgan/P W C Summit/P Sc Wasatch104Southern Wasatch Front104Cache103Emery97X Nw Kane/Xs Xe Iron/N W Washington/Nw Wc Garfield/Piute/W Wayne/Sevier T C/X E Millard/S Sanpete T Sc/X Se Juab/P X Nw Emery/X E Beaver95Iron93Uintah92W Utah T X Nw/P X E Juab91West Central Utah89Duchesne86Wasatch Mountains South of I8086Wasatch Mountain Valleys79Wasatch Mountains I80 North70Millard62Cache Valley/Utah61Juab59Beaver58Carbon58Salt Lake and Toole Valleys57Northern Wasatch Front/Brigham City/Ogden Bountiful56Wasatch Mountain Valleys/Huntsville/Park City/Heber55C W Box Elder/C W Xe Toole/X W Salt Lake/X Nw Utah54Sevier49Cache Valley/Utah Portion48Central and Southwest Mountains47Nw Cache47Summit47C E Summit/X Ne Wasatch/N Duchesne46Sanpete/Sevier Valleys44Utahs Dixie and Zion National Park44Wasatch44Daggett43Beaver T X E/Iron T Xs Xe42Tooele and Rush Valleys41E Wasatch T X Ne/S Wc Duchesne/X Ne San Pete/Carbon T Sc/P X Ne X Nw Emery39Salt Lake Valley38Sanpete38South Central Utah38Western Unita Mountains38Southern Wasatch Front/Lehi/Provo/Nephi36Castle Country34Millard T X E/Juab T X E29Western Uinta Basin28Eastern Box Elder County27Utah Valley27Great Salt Lake Desert and Mountains/Wendover/Snowville26Rich25Glen Canyon Recreation Area/Lake Powell23Sc Washington23Southwest Utah/Cedar City/Milford23C Sc Sanpete/C Sevier22Morgan22Western Unita Basin18West Central Utah/Delta17Wasatch Back16P Sc Carbon/Nw Emery T X Nw15Piute15C Ec Xse Duchesne14Castle Country/Price/Castle/Dale/Emery14Eastern Juab/Millard Counties14San Rafael Swell14Utah'S Dixie and Zion National Park14Bear Lake and Bear River Valley13Daggett/N Uintah13Ne Garfield/X Sc X Se Wayne/C N San Juan13Kane T X Nw X E/Sc Garfield12Lower Washington County11Western Juab/Millard Counties11Bryce Canyon Country10Southeast Mountains/Canyonlands10San Rafael Swell/Greene River/Hanksville9Upper Sevier River Valleys9S Uintah/N Grand8South Central Utah/Kanab/Escalante7C Uintah6Emery T Nw X Ne/C E Wayne/P Sc Carbon6Sc Se San Juan5Sevier Valley5Western Canyonlands5Sanpete Valley3Sw San Juan/X E Kane/Se Garfield3Arches2Capitol Reef National Park and Vicinity2S Grand2Southeast Utah/Blanding2Zion National Park2Arches/North La Sals1C Grand1Canyonlands & Natural Bridges1Grand Flat1
Year: 2021

21 events in Grand Flat and Arches during 2021

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  1. Winter StormGrand Flat and Arches

    Generally 2 to 3 inches of snow fell across the area with locally higher amounts of up to 5.7 inches measured in Castle Valley. Winds gusted up to 40 mph.

    NOAA record 990977 β†—
  2. Dense FogGrand Flat and Arches

    Dense fog was observed across the Arches/Grand Flat area including at the Canyonlands Field Airport in Moab as visibility was reduced to less than one quarter of a mile for a couple of hours.

    NOAA record 990954 β†—
  3. High WindGrand Flat and Arches64 mph gust (measured)

    The automated weather station at the Canyonlands Field Airport in Moab reported a peak wind gust of 64 mph.

    NOAA record 990919 β†—
  4. High WindGrand Flat and Arches70 mph gust (measured)

    The automated weather station at the Canyonlands Field Airport in Moab reported a peak wind gust of 70 mph.

    NOAA record 990478 β†—
  5. DroughtGrand Flat and Arches

    The status of the drought improved across portions of the zone through the month of December. The extreme (D3) drought across the far western portion of the zone improved to the severe (D2) category. Meanwhile, the severe drought persisted across the central areas as the moderate (D1) drought continued across the far eastern portion of the zone.

    NOAA record 992557 β†—
  6. DroughtGrand Flat and Arches

    The status of the drought remained unchanged across the entirety of the zone through the month of November. Extreme (D3) drought persisted across the far western portion of the zone with severe (D2) conditions across the central areas and moderate (D1) drought across the far eastern portion of the zone.

    NOAA record 988138 β†—
  7. Frost/FreezeGrand Flat and Arches

    Overnight lows ranged from 30 to 32 degrees across the area, including a low of 30 degrees at the Canyonlands Field Airport.

    NOAA record 979745 β†—
  8. DroughtGrand Flat and Arches

    The status of the drought improved across much of the zone during the month of October as the extreme (D3) drought was trimmed back to include just the far western part of the zone and improved to the severe (D2) category over the central part. Meanwhile, the severe drought improved to the moderate (D1) category across the far eastern portion of the zone.

    NOAA record 984921 β†—
  9. DroughtGrand Flat and Arches

    The status of the drought improved slightly during the month of September as the extreme (D3) drought was trimmed back to include just the western and central parts of the zone. The drought improved to the severe (D2) category across the far eastern portion of the zone.

    NOAA record 978452 β†—
  10. DroughtGrand Flat and Arches

    The status of the drought remained unchanged across the zone during the month of August with extreme (D3) conditions across the entirety of the zone.

    NOAA record 972609 β†—
  11. HeatGrand Flat and Arches

    High temperatures of 102 to 109 degrees were reported by various automated weather stations each day through the period. Additionally, overnight lows ranged from 71 to 77 degrees on the morning of the 8th and 9th.

    NOAA record 959461 β†—
  12. DroughtGrand Flat and Arches

    The status of the drought improved across some areas during the month of July. The exceptional (D4) drought over the southern portion of the zone improved to the extreme (D3) category. Elsewhere, the extreme conditions that were in place at the beginning of July remained unchanged.

    NOAA record 965669 β†—
  13. Excessive HeatGrand Flat and Arches

    High temperatures of 101 to 107 degrees were reported by various automated weather stations each day through the period. Additionally, overnight lows ranged from 74 to 76 degrees on the morning of the 17th and 18th.

    NOAA record 955646 β†—
  14. DroughtGrand Flat and Arches

    The status of the drought worsened through the month of June with exceptional (D4) conditions developing across the southeast portion of the zone. Elsewhere, extreme (D3) conditions continued through the end of the month.

    NOAA record 958841 β†—
  15. DroughtGrand Flat and Arches

    The status of the drought remained unchanged through the month of May with extreme (D3) conditions persisting across the entirety of the zone.

    NOAA record 955688 β†—
  16. Frost/FreezeGrand Flat and Arches

    Overnight lows ranged from 28 to 32 degrees with a low temperature of 28 degrees recorded at the Canyonlands Field Airport in Moab.

    NOAA record 941944 β†—
  17. DroughtGrand Flat and Arches

    The status of the drought remained unchanged through the month of April with extreme (D3) conditions persisting across the entirety of the zone.

    NOAA record 947248 β†—
  18. High WindGrand Flat and Arches58 mph gust (measured)

    A peak wind gust of 58 MPH was measured by the Bryson Canyon automated weather station.

    NOAA record 940911 β†—
  19. DroughtGrand Flat and Arches

    The status of the drought remained unchanged through the month of March with extreme (D3) conditions persisting across the entirety of the zone.

    NOAA record 941925 β†—
  20. DroughtGrand Flat and Arches

    The status of the drought remained unchanged through the month of February with extreme (D3) conditions persisting across the entirety of the zone.

    NOAA record 936489 β†—
  21. DroughtGrand Flat and Arches

    The status of the drought remained unchanged through the month of January with extreme (D3) conditions persisting across the entirety of the zone.

    NOAA record 931802 β†—

About this data

Every entry comes from the NOAA / NCEI Storm Events Database, the federal record of severe weather in the United States. We reproduce it here filtered to Utah and made searchable β€” we do not edit, add to, or interpret the records. Where NOAA lists a wind speed in knots we show it in miles per hour; everything else is verbatim.

Locations are NOAA's own county and National Weather Service forecast-zone names, which is why you will see both Salt Lake and Wasatch Mountains South of I-80. A storm not listed here was not necessarily absent β€” it means NOAA has no recorded report for it, which is common for isolated hail.

11,426 events Β· 1996–2026 Β· last updated August 26, 2026. Free to use and cite β€” a link back is appreciated but not required.

Maintained by West Peak Roofing, a roofing company in Highland, Utah. We built this because homeowners kept asking us what date their storm hit.

πŸ“žCall (801) 960-6789Utah Storm Date Index β€” every NOAA-recorded storm since 1996 Β· West Peak Roofing