Arizona Severe Flood Watch | Effective 08/10/2026 10:57

Headline: 
Flood Watch issued August 10 at 10:57AM MST until August 11 at 11:00PM MST by NWS Tucson AZ
Event: 
Flood Watch
Urgency: 
Future
Effective: 
August 10, 2026 - 10:57am
Expires: 
August 10, 2026 - 7:00pm
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Tucson Metro and Santa Cruz County. * WHEN...From 2 PM MST Tuesday afternoon through 11 PM MST Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Another round of showers and thunderstorms is expected Tuesday afternoon and evening. Additional rainfall from the previous day will result in faster responses in normally dry washes, creeks and roadway dips. Rainfall rates in excess of 1 inch per hour are expected with the stronger storms with isolated areas having the potential of 1-3 inches. - Http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail
Forcast Office: 
NWS Tucson AZ
Sender: 
w-nws.webmaster@noaa.gov