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.
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- 21 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.
NWS Tucson AZ · source Aug 29, 2026, 10:55 PM
State resourceArizona Department of Emergency and Military Affairs↗federalNWPS gauge: Santa Cruz River at Congress Street↗federalOfficial Flash Flood Warning↗federalUSGS gauge 09482500 (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 official event is Flash Flood Warning. This event has Severe severity and Immediate urgency. The affected area is Pima, AZ.
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Official incident details
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FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... East Central Pima County in southeastern Arizona... * Until 645 PM MST. * At 355 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.6 and 1.1 inches of rain have fallen. Additional rainfall amounts of 1 to 1.5 inches are possible in the warned area. 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. * Some locations that will experience flash flooding include... Tucson, Davis-Monthan Air Force Base, South Tucson and Tucson International Airport. This includes the following highways... Interstate 19 between mile markers 60 and 63. Route 86 near mile marker 171. Interstate 10 between mile markers 259 and 267. This includes the following Flash Flood Prone Locations... Drexel Rd east of Alvernon Way.
NWS Tucson AZ · source Aug 29, 2026, 10:55 PM
Official forecast
NWS weather context
Official gauge and corroborating observation
River and flood-stage context
Source-timed facts
Current incident picture
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- Affected areas
- Pima, AZ National Weather Service · source Aug 29, 2026, 10:55 PM
- County count
- 1 counties National Weather Service · source Aug 29, 2026, 10:55 PM
- Official alert
- Flash Flood Warning National Weather Service · source Aug 29, 2026, 10:55 PM
- Severity
- Severe National Weather Service · source Aug 29, 2026, 10:55 PM
- Ugc county codes
- AZC019 National Weather Service · source Aug 29, 2026, 10:55 PM
- Urgency
- Immediate National Weather Service · source Aug 29, 2026, 10:55 PM
- Warning count
- 1 warnings National Weather Service · source Aug 29, 2026, 10:55 PM
- 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
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Map-equivalent affected-area text
Pima, AZ
Source center: 32.178, -110.920. A point or perimeter is context, not a safety boundary.
- Pima, AZ
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Incident first observed.
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Official sources
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state · emergencyArizona Department of Emergency and Military AffairsVerified Aug 29, 2026, 11:00 PMfederal · gaugeNWPS gauge: Santa Cruz River at Congress StreetVerified Aug 29, 2026, 11:00 PMfederal · weatherOfficial Flash Flood WarningVerified Aug 29, 2026, 11:00 PMfederal · gaugeUSGS gauge 09482500 (provisional)Verified Aug 29, 2026, 11:00 PM
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.