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
16 hr ago
Briefing status
Active

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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.

NWS Tucson AZ · source Aug 30, 2026, 3:36 AM

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 is classified as Severe with Immediate urgency. The warning applies to Pima, AZ and encompasses 1 counties county.

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... South Central Pima County in southeastern Arizona... * Until 1115 PM MST. * At 836 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.2 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... Vamori, Cowlic, Choulic and Coldfields. This includes the following Flash Flood Prone Locations... Indian Route 20 at Cowlic. Significant rain has occurred on the western slopes of the Boboquivari Mountains into the lower deserts from Topawa to the International Border. Expect significant and rapid rises on washes including the Vamori Wash. This will take some time for the flood wave to move down the wash, which will likely occur after midnight.

NWS Tucson AZ · source Aug 30, 2026, 3:36 AM

Official forecast

NWS weather context

Chance Showers And Thunderstorms87°F · wind 13 mph · gusts 18 mph8/30/2026, 3:00:00 AM
Chance Showers And Thunderstorms84°F · wind 13 mph · gusts 18 mph8/30/2026, 4:00:00 AM
Chance Showers And Thunderstorms83°F · wind 7 mph · gusts 12 mph8/30/2026, 5:00:00 AM
Partly Cloudy82°F · wind 9 mph · gusts 15 mph8/30/2026, 6:00:00 AM
Partly Cloudy80°F · wind 13 mph · gusts 20 mph8/30/2026, 7:00:00 AM
Partly Cloudy79°F · wind 12 mph · gusts 20 mph8/30/2026, 8:00:00 AM

Source-timed facts

Current incident picture

Values stay attached to the authority and time that supplied them.

Affected areas
Pima, AZ
National Weather Service · source Aug 30, 2026, 3:36 AM
County count
1 counties
National Weather Service · source Aug 30, 2026, 3:36 AM
Official alert
Flash Flood Warning
National Weather Service · source Aug 30, 2026, 3:36 AM
Severity
Severe
National Weather Service · source Aug 30, 2026, 3:36 AM
Ugc county codes
AZC019
National Weather Service · source Aug 30, 2026, 3:36 AM
Urgency
Immediate
National Weather Service · source Aug 30, 2026, 3:36 AM
Warning count
1 warnings
National Weather Service · source Aug 30, 2026, 3:36 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: 31.730, -111.939. A point or perimeter is context, not a safety boundary.

  • Pima, AZ

Material revisions

What changed

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  2. Official source facts changed.

  3. Official source facts changed.

  4. Incident first observed.

Provenance and handoffs

Official sources

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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.