Live incident briefing · Flood
Flash Flood Warning near Graham, AZ
Official warning geography and instructions, rainfall outlook, gauge observations and forecasts, affected places, and source history.
- Official source updated
- 13 hr ago
- Briefing status
- Active
Start here
Official information and local resources
Be especially cautious at night when it is harder to recognize the dangers of flooding. Remain alert for flooding even in locations not receiving rain. Washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
NWS Tucson AZ · source Aug 30, 2026, 5:27 AM
State resourceArizona Department of Emergency and Military Affairs↗federalNWPS gauge: Aravaipa Creek near Mammoth↗federalOfficial Flash Flood Warning↗federalUSGS gauge 09473000 (provisional)↗
In immediate danger? Call 911. Nature Says When is not an emergency service and does not determine whether an area is safe.
Verified context
What the latest evidence says
Official Flash Flood Warning has Severe severity and Immediate urgency. The warning covers 2 counties counties: Graham, AZ, Pinal, AZ.
From the primary source
Official incident details
Displayed directly from the issuing authority, with no generated paraphrase.
FFWTWC The National Weather Service in Tucson has extended the * Flash Flood Warning for... Western Graham County in southeastern Arizona... East Central Pinal County in southeastern Arizona... * Until 1245 AM MST. * At 1027 PM MST, Doppler radar and automated rain gauges indicated thunderstorms produced heavy rain across the warned area. Between 1 and 3 inches of rain have fallen in the Aravaipa Watershed. Flooding impacts will continue, but no additional rainfall is expected. A stream gauge in the Aravaipa Canyon showed a rapid 6 foot rise and this flood wave is moving downstream. Hikers and campers should move away from the creek now. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Aravaipa Canyon Wilderness. This includes the following streams and drainages... Deer Creek, Telegraph Wash and Aravaipa Creek.
NWS Tucson AZ · source Aug 30, 2026, 5:27 AM
Official forecast
NWS weather context
Official gauge and corroborating observation
River and flood-stage context
Source-timed facts
Current incident picture
Values stay attached to the authority and time that supplied them.
- Affected areas
- Graham, AZ, Pinal, AZ National Weather Service · source Aug 30, 2026, 5:27 AM
- County count
- 2 counties National Weather Service · source Aug 30, 2026, 5:27 AM
- Official alert
- Flash Flood Warning National Weather Service · source Aug 30, 2026, 5:27 AM
- Severity
- Severe National Weather Service · source Aug 30, 2026, 5:27 AM
- Ugc county codes
- AZC009, AZC021 National Weather Service · source Aug 30, 2026, 5:27 AM
- Urgency
- Immediate National Weather Service · source Aug 30, 2026, 5:27 AM
- Warning count
- 1 warnings National Weather Service · source Aug 30, 2026, 5:27 AM
- Represented population
- 520,039 people U.S. Census Bureau 2020 Decennial Census · source Apr 1, 2020, 12:00 AM
Geographic context
Incident area and nearby places
Map geometry shows the official source shape when available. It does not predict impact outside or inside the line.
Loading the incident map…
Map-equivalent affected-area text
Graham, AZ; Pinal, AZ
Source center: 32.962, -110.581. A point or perimeter is context, not a safety boundary.
- Graham, AZ
- Pinal, AZ
Material revisions
What changed
Only stored fact changes enter this timeline.
Official source facts changed.
Official source facts changed.
Official source facts changed.
Official source facts changed.
Incident first observed.
Provenance and handoffs
Official sources
Open the authority’s page before making an emergency decision.
state · emergencyArizona Department of Emergency and Military AffairsVerified Aug 30, 2026, 7:30 AMfederal · gaugeNWPS gauge: Aravaipa Creek near MammothVerified Aug 30, 2026, 7:30 AMfederal · weatherOfficial Flash Flood WarningVerified Aug 30, 2026, 7:30 AMfederal · gaugeUSGS gauge 09473000 (provisional)Verified Aug 30, 2026, 7:30 AM
How this briefing is assembled
Source facts are stored with source and retrieval times. The page renders stored records only. Optional generated context is omitted whenever validation fails and never controls emergency instructions, containment, road status, health guidance, or publication.