Arizona Severe Flash Flood Warning | Effective 08-10-2026 20:46

Headline: 
Flash Flood Warning issued August 10 at 8:46PM MST until August 10 at 11:30PM MST by NWS Tucson AZ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
August 10, 2026 - 8:46pm
Expires: 
August 10, 2026 - 11:30pm
Description: 
At 846 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch 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 and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Safford, Thatcher, Roper Lake State Park, Mount Graham, Frye Mesa Dam, Fort Grant and Swift Trail Junction. This includes the following highways... Route 191 between mile markers 112 and 118. Route 266 near mile marker 121...and between mile markers 125 and 126. This includes the following streams and drainages... Frye Creek, Twilight Creek, Jacobson Creek, Gila River, Gibson Creek, Ash Creek, Stockton Wash, Noon Creek and Marijilda Wash.
Instruction: 
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.
SNM: AVISO DE INUNDACIONES REPENTINAS hasta 11:30 PM MST. Evite areas inundadas.
Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 11:30 PM MST. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.
Area Description: 
Graham, AZ
Forcast Office: 
NWS Tucson AZ
Sender: 
w-nws.webmaster@noaa.gov