Flash Flood Warning Issued for South Central Graham County, AZ

Source: NOAA · South Central Graham County, Arizona

This alert is no longer in effect.

NOAA issued it on August 13, 2026, 10 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 Tucson has issued a Flash Flood Warning for South Central Graham County in southeastern Arizona until 4:00 PM MST on August 13, 2026, due to thunderstorms producing heavy rain.

Read this weather record in 30 seconds

Record type
Flash Flood Warning
Affected area
South Central Graham County, Arizona
Issued
August 13, 2026
Issuing authority
NWS Tucson 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 10 days ago; use the issuing agency's live warning service for current conditions in South Central Graham County, Arizona.

Alert Details

Flash Flood Warning issued by NWS Tucson AZ. Effective from 1:00 PM MST to 4:00 PM MST on August 13, 2026. Alert type code: FFW. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

South Central Graham County in southeastern Arizona, including Safford, Thatcher, Roper Lake State Park, Swift Trail Junction, Frye Mesa Dam, and Mount Graham. Highways affected include Route 191 between mile markers 114 and 120, and Route 70 between mile markers 336 and 341.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

Expected Conditions

At 1:00 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen on the eastern and northern faces of Mount Graham. Flash flooding is ongoing or expected to begin shortly. Hazard: Flash flooding caused by thunderstorms. Source: Radar indicated. Impact: Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Timeline

Alert effective August 13, 2026, from 1:00 PM MST until 4:00 PM MST.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Tucson has issued a Flash Flood Warning for South Central Graham County in southeastern Arizona until 4:00 PM MST on August 13, 2026, due to thunderstorms producing heavy rain.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects South Central Graham County, Arizona. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.