Live incident briefing · Flood
Flash Flood Warning near Pima, AZ
Official warning geography and instructions, rainfall outlook, gauge observations and forecasts, affected places, and source history.
- Official source updated
- 18 hr ago
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Official information and local resources
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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.
NWS Tucson AZ · source Aug 30, 2026, 1:04 AM
State resourceArizona Department of Emergency and Military Affairs↗federalNWPS gauge: Altar Wash near Three Points↗federalOfficial Flash Flood Warning↗federalUSGS gauge 09486800 (provisional)↗
In immediate danger? Call 911. Nature Says When is not an emergency service and does not determine whether an area is safe.
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What the latest evidence says
The Flash Flood Warning carries Severe severity and Immediate urgency for Pima, AZ. This event covers 1 counties county and includes 1 warnings warning.
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Official incident details
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At 604 PM MST, Doppler radar indicated intense thunderstorms producing very heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Topawa, San Miguel, South Komelik, Choulic, Newfield, Coldfields, Fresnal Canyon and Hashan Chuchg. This includes Route 286 between mile markers 28 and 30. This includes the following Flash Flood Prone Locations... Indian Route 19 south of Topawa. Significant rainfall is occurring in Fresnal Canyon and the western slopes of the Boboquivari Mountains, which will flow toward Topawa and Route 19 or San Miguel Road. Expect rapid rises and significant flows in these areas.
NWS Tucson AZ · source Aug 30, 2026, 1:04 AM
Official forecast
NWS weather context
Official gauge and corroborating observation
River and flood-stage context
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Current incident picture
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- Affected areas
- Pima, AZ National Weather Service · source Aug 30, 2026, 1:04 AM
- County count
- 1 counties National Weather Service · source Aug 30, 2026, 1:04 AM
- Official alert
- Flash Flood Warning National Weather Service · source Aug 30, 2026, 1:04 AM
- Severity
- Severe National Weather Service · source Aug 30, 2026, 1:04 AM
- Ugc county codes
- AZC019 National Weather Service · source Aug 30, 2026, 1:04 AM
- Urgency
- Immediate National Weather Service · source Aug 30, 2026, 1:04 AM
- Warning count
- 1 warnings National Weather Service · source Aug 30, 2026, 1:04 AM
- Represented population
- 1,061,175 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.
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Map-equivalent affected-area text
Pima, AZ
Source center: 31.744, -111.649. A point or perimeter is context, not a safety boundary.
- Pima, AZ
Material revisions
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state · emergencyArizona Department of Emergency and Military AffairsVerified Aug 30, 2026, 2:45 AMfederal · gaugeNWPS gauge: Altar Wash near Three PointsVerified Aug 30, 2026, 2:31 AMfederal · weatherOfficial Flash Flood WarningVerified Aug 30, 2026, 2:45 AMfederal · gaugeUSGS gauge 09486800 (provisional)Verified Aug 30, 2026, 2:31 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.