Severe Thunderstorm Warning Issued for Maricopa and Pinal Counties, AZ
This alert is no longer in effect.
NOAA issued it on August 20, 2026, 3 days 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.
NWS Phoenix has issued a Severe Thunderstorm Warning for Maricopa and Pinal Counties until 9:45 PM MST with 60 mph wind gusts and up to 0.75 inch hail.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central Arizona
- Issued
- August 20, 2026
- Issuing authority
- NWS Phoenix AZ
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 days ago; use the issuing agency's live warning service for current conditions in Central Arizona.
Alert Details
Severe Thunderstorm Warning issued by NWS Phoenix AZ. Effective from August 19 at 9:03 PM MST until August 19 at 9:45 PM MST. Alert type code: SVR.
Affected Areas
Maricopa County in south central Arizona and Pinal County in southeastern Arizona. Locations impacted include Mesa, Chandler, Gilbert, Apache Junction, Gold Canyon, East Mesa, Queen Creek, Granite Reef Dam, Gold Camp, Falcon Field Airport, Usery Mountain Park, San Tan Village Mall, San Tan Valley, Seville, and Freestone Park. Highways affected: US Highway 60 between mile markers 180 and 212; AZ Route 87 between mile markers 165 and 171; AZ Route 202 between mile markers 21 and 48.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 9:02 PM MST, an outflow boundary was located near San Tan Valley, or 10 miles southwest of Gold Canyon, moving northwest at 30 mph. Hazard includes 60 mph wind gusts and hail up to 0.75 inches. Expect damage to roofs, siding, and trees.
Timeline
Alert effective August 19 at 9:03 PM MST and expires August 19 at 9:45 PM MST.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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 (1,128 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 20, 2026.
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