Headline:
Flash Flood Warning issued September 12 at 2:45PM MST until September 12 at 4:30PM MST by NWS Tucson AZ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 12, 2026 - 2:45pm
Expires:
September 12, 2026 - 4:30pm
Description:
At 245 PM MST, Doppler radar indicated thunderstorms have diminished
in the warned area extending from Green Valley to Madera Canyon.
Between 1 and 2 inches of rain have fallen. 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...
Sahuarita and Madera Canyon.
This includes the following streams and drainages...
Santa Cruz River, Gardner Canyon, Box Canyon Wash, Sonoita Creek
and Josephine Canyon.
Instruction:
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.
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.
Area Description:
Pima, AZ; Santa Cruz, AZ
Forcast Office:
NWS Tucson AZ
Sender:
w-nws.webmaster@noaa.gov