Flash flood warning issued for Pima County

The National Weather Service has issued a flash flood warning for Pima County starting at 4:09 p.m. July 24. The warning expires at 7:15 p.m. July 24.

Doppler radar indicated thunderstorms producing heavy rain across the northern portions of the Tohono O'odhamNation. Weather radar indicated between 1 and 2 inches of rain has fallen along and near Route 34 southeast of Sil Nakya and south of Queens Well.

Flash flooding is ongoing or expected to begin shortly, especially along the normally dry washes that feed into the Aguirre and Sil Nakya Washes.

Life-threatening flash flooding of creeks and streams,urban areas, highways, streets and underpasses is possible.

Some locations that will experience flash flooding include Queens Well, Santa Rosa Ranch and Sil Nakya.

This includes the following flash flood prone locations: Sil Nakya Wash at Route 34.

This includes the following streams and drainages: San Vicente Wash, House Wash, Aguirre Wash, Ko Vaya Wash, Viopuli Wash, Sil Nakya Wash, Anegan Wash and Pan Tak Wash.

For the latest watches and warnings, see our weather alert page .

Tips for flood weather

Officials offered the following tips for residents to prepare for approaching storms and potential flooding threats.

• Protect your property from floodwaters and purchase flood insurance.
• Plan for sheltering where you are and for evacuation.
• Evacuate if advised.
• Seek high ground (for flash floods) or stay on high ground.
• Avoid walking or driving in floodwaters. Depth and velocity of the water are not always obvious; the ground or road may suddenly wash away and hidden dangers may exist; do not attempt to evacuate through floodwaters.
• Know how to avoid injury from debris, contaminated water, carbon monoxide poisoning, electrocution, and damaged buildings and infrastructure.
• Seek professional review or inspection of structures and utilities before entering buildings that are flooded.

This article was generated by The Arizona Republic and USA TODAY Network using data released by the National Weather Service. It was edited by a staff member.

This article originally appeared on Arizona Republic: Flash flood warning issued for Pima County