Steamboat Canyon Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Steamboat Canyon.

Use the Radar Maps link provided to understand the trajectory of a storm.

Flood Watch issued July 19 at 11:13PM MST until July 21 at 12:00AM MST by NWS Tucson AZ

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Southeast Arizona including Graham, Greenlee, Cochise and Santa Cruz counties. * WHEN...From Noon MST Monday afternoon through Midnight MST Monday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - The combination of ample moisture across Southeast Arizona and an upper-level disturbance moving into the area from New Mexico today will result in widespread showers and thunderstorms... especially east and south of Tucson. These storms will be capable of producing heavy rainfall, with localized rainfall amounts between 1 and 3 inches. Given how saturated soils are across the area from storms over the past week, there is an increased potential for rainfall runoff to produce flash flooding. - http://www.weather.gov/safety/flood

Flood Advisory issued July 19 at 9:12PM MST until July 20 at 12:15AM MST by NWS Tucson AZ

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...West Central Cochise County in southeastern Arizona... * WHEN...Until 1215 AM MST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Overflowing poor drainage areas. * ADDITIONAL DETAILS... - At 910 PM MST, local law enforcement reported heavy rain in the advisory area due to thunderstorms which has produced flooding in low lying areas along the San Pedro including in St David. Minor flooding is ongoing or expected to begin shortly. Between 1 and 2 inches of rain have fallen. - This includes the following streams and drainages... Clifford Wash, Escalante Wash, San Pedro River, Cadillac Wash, Slavin Wash and Dragoon Wash. - Some locations that will experience flooding include... St. David. - This includes the following highways... Route 80 between mile markers 297 and 305. Interstate 10 between mile markers 306 and 307. - http://www.weather.gov/safety/flood