Severe Thunderstorm Warning Issued for Box Elder and Tooele Counties in Utah
This alert is no longer in effect.
NOAA issued it on May 20, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Severe Thunderstorm Warning for southwestern Box Elder County and northern Tooele County until 2:45 PM MDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Northern Utah
- Issued
- May 20, 2026
- Issuing authority
- NWS Salt Lake City UT
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Northern Utah.
Alert Details
A Severe Thunderstorm Warning was issued by the National Weather Service in Salt Lake City on May 13 at 1:54 PM MDT. The alert is effective immediately and remains in effect until May 13 at 2:45 PM MDT.
Affected Areas
The warning covers southwestern Box Elder County and northern Tooele County in northern Utah. Impacted locations include Delle, Knolls, Utah Test and Training Range North, Clive, Skull Valley, Great Salt Lake South of the Causeway, Utah Test and Training Range South, Hat Island, Lakeside, and Bonneville Salt Flats. Affected highways include Interstate 80 between mile markers 20 and 87 and Utah Route 30 between mile markers 24 and 28.
What You Should Do
Residents should move to an interior room on the lowest floor of a building for protection.
Expected Conditions
Elevated thunderstorms are producing gusty and erratic outflow winds with 60 mph wind gusts possible. Radar indicated a storm moving north at 50 mph. Hail up to 0.75 inches is possible.
Timeline
The warning is in effect from 1:54 PM MDT until 2:45 PM MDT on May 13, 2026.
Original source: NOAA Official Notice ↗
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,091 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 20, 2026.
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