Flash Flood Warning Issued for Maricopa County, AZ (Aug 31, 2026, 3:15 AM UTC)
This alert is no longer in effect.
NOAA issued it on August 31, 2026, 3 weeks 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 Flash Flood Warning for Maricopa County until 12:15 AM MST due to thunderstorms producing heavy rain.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Maricopa County, Arizona
- Issued
- August 31, 2026
- Issuing authority
- NWS Phoenix AZ
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 3 weeks ago; use the issuing agency's live warning service for current conditions in Maricopa County, Arizona.
Alert Details
Flash Flood Warning issued by NWS Phoenix AZ. Effective from August 30 at 8:15 PM MST until August 31 at 12:15 AM MST. Alert type code: FFW.
Affected Areas
Maricopa County in south central Arizona. Specific locations include Big Horn and AZ Interstate 8 between mile markers 122 and 131. Streams and drainages: Bender Wash, Quilotosa Wash, Sauceda Wash and Sand Tank Wash.
What You Should Do
Turn around, don't drown when encountering flooded roads. Report observed flooding to local emergency services or law enforcement.
Expected Conditions
Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses.
Timeline
Alert effective August 30 at 8:15 PM MST and expires August 31 at 12:15 AM MST.
Original source: NOAA Official Notice ↗
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