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
- Briefing status
- Active
Start here
Official information and local resources
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
NWS Tucson AZ · source Aug 30, 2026, 12:29 AM
State resourceArizona Department of Emergency and Military Affairs↗federalNWPS gauge: Santa Cruz River at Green Valley↗federalOfficial Flash Flood Warning↗federalUSGS gauge 09482000 (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
The Flash Flood Warning applies to Pima, AZ, Santa Cruz, AZ. This event is classified as Severe with Immediate urgency. Official coverage includes 2 counties counties and 1 warnings warning.
From the primary source
Official incident details
Displayed directly from the issuing authority, with no generated paraphrase.
At 529 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. 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... Green Valley, Amado and Arivaca Junction. This includes Interstate 19 between mile markers 29 and 35. This includes the following streams and drainages... Sopori Wash, Old Junction Wash, Santa Cruz River and Demetrie Wash.
NWS Tucson AZ · source Aug 30, 2026, 12:29 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
- Pima, AZ, Santa Cruz, AZ National Weather Service · source Aug 30, 2026, 12:29 AM
- County count
- 2 counties National Weather Service · source Aug 30, 2026, 12:29 AM
- Official alert
- Flash Flood Warning National Weather Service · source Aug 30, 2026, 12:29 AM
- Severity
- Severe National Weather Service · source Aug 30, 2026, 12:29 AM
- Ugc county codes
- AZC019, AZC023 National Weather Service · source Aug 30, 2026, 12:29 AM
- Urgency
- Immediate National Weather Service · source Aug 30, 2026, 12:29 AM
- Warning count
- 1 warnings National Weather Service · source Aug 30, 2026, 12:29 AM
- Represented population
- 1,107,983 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
Pima, AZ; Santa Cruz, AZ
Source center: 31.783, -111.121. A point or perimeter is context, not a safety boundary.
- Pima, AZ
- Santa Cruz, AZ
Material revisions
What changed
Only stored fact changes enter this timeline.
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, 1:15 AMfederal · gaugeNWPS gauge: Santa Cruz River at Green ValleyVerified Aug 30, 2026, 1:01 AMfederal · weatherOfficial Flash Flood WarningVerified Aug 30, 2026, 1:15 AMfederal · gaugeUSGS gauge 09482000 (provisional)Verified Aug 30, 2026, 1:01 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.