One Mile Tanks Severe Weather Warnings, Watches and Advisories
FLASH FLOOD WARNING
Begins: 8:52 AM Fri, Oct 10, 2025
Expires: 11:45 AM Fri, Oct 10, 2025
FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... Coconino County in north central Arizona... Navajo County in north central Arizona... * Until 1145 AM MST. * At 852 AM MST, Doppler radar and automated rain gauges indicated widespread rain across the warned area. Between 0.75 and 1.25 inches of rain have fallen. Flash flooding is ongoing and a stream gage in Jack's Canyon has reported a 3.5 foot rise and still rising. Expect flooding in Jack's Canyon to move toward Winslow through 11:45 AM MST. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of Jack's Canyon. * Some locations that will experience flash flooding include... Jacks Canyon. This includes the following highways... Interstate 40 between mile markers 257 and 258. Business Interstate 40 between mile markers 256 and 257. State Route 99 between mile markers 39 and 41. State Route 87 between mile markers 317 and 339...and near mile marker 346. This includes the following creeks, washes and rivers... Cottonwood Wash, Little Colorado River and Jacks Canyon.
FLOOD ADVISORY
Begins: 10:01 AM Fri, Oct 10, 2025
Expires: 3:00 PM Fri, Oct 10, 2025
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of the Hopi Tribal Lands and Navajo Nation in north central and northeast Arizona, including the following counties, in north central Arizona, Coconino. In northeast Arizona, Apache and Navajo. * WHEN...Until 300 PM MST /400 PM MDT/. * IMPACTS...Minor flooding in creeks and normally dry washes is imminent or occurring. Dangerous flooding over low-water crossings. * ADDITIONAL DETAILS... - At 956 AM MST /1056 AM MDT/, Doppler radar indicated widespread rainfall between 1 and 2.5 inches has fallen. Minor flooding is ongoing or expected to begin shortly across Oraibi Wash, Polacca Wash, Jadito, and Coyote Washes. Light to moderate rain is expected to continue across the area with an additional 0.5 inch possible over the next 2 hours. - This includes the following creeks, washes and rivers... Little Colorado River, Oraibi Wash, Polacca Wash, Jadito Wash, and Coyote Wash. - Some locations that will experience flooding include... Keams Canyon, Polacca Airport, First Mesa, Jeddito, Tees Toh, Seba Dalkai, Hard Rock, Hotevilla-Bacavi, Low Mountain, Dilkon, Whippoorwill, Toyei, Tolani Lake, Tselani-Cottonwood, Forest Lake, Black Mesa, Homolovi Ruins State Park and Sunrise. - This includes the following highways... Interstate 40 between mile markers 228 and 257. Business Interstate 40 between mile markers 252 and 255. State Route 264 between mile markers 367 and 424. State Route 99 between mile markers 53 and 71. State Route 87 near mile marker 342...and between mile markers 365 and 406. Highway 191 between mile markers 440 and 449. This includes the following recreation areas and campgrounds... Homolovi State Park Campground, Cottonwood Campground, Standin on the Corner Park and Winslow City Park. - Additional information is available at weather.gov/flagstaff.
FLOOD WATCH
Begins: 4:30 PM Thu, Oct 9, 2025
Expires: 12:00 AM Sun, Oct 12, 2025
* WHAT...Flooding, caused by excessive rainfall from deep sub-tropical moisture moving over the area, will be possible through Saturday. * WHERE...Much of northern and central Arizona, except for Apache County south of the Four Corners. * WHEN...Through Saturday evening. * IMPACTS...Flooding will be possible in creeks, streams and normally dry washes. Low-water crossings could also become flooded, which would create deadly travel conditions. Creeks and streams may rise out of their banks. Flooding of paved roads and highway underpasses will be possible. Unpaved roads could become muddy and impassable.
What is the difference between a weather warning, watch and advisory?
The National Weather Service issues alerts in different categories to indicate the severity of storms and if the public should take immediate action to prevent the loss of life or property or be aware of the potential of the same.
Weather Warning
A weather warning is issued when severe weather conditions are occuring or imminent and there is danger to life and/or property. The warning will include what action should be taken including evacuation or shelter in place and should be heeded immediately. Warnings are usually issued for a small, specific area and for a definite period of time.
Weather Watch
A weather watch is an alert issued by the National Weather Service when conditions are favorable for the development of severe weather. A weather watch means that severe weather is possible in the area, so it is important to stay tuned to the latest forecasts and be prepared for potential storms.
The purpose of a weather watch is to provide advance warning to people in the affected area so that they can take necessary precautions. It is important to remember that a weather watch does not mean that severe weather will definitely occur, but simply that there is a higher chance of it happening.
If you live in an area where severe weather is common, it may be wise to have a plan in place for what you will do if a storm hits. Make sure you have plenty of food and water stored, as well as flashlights, batteries, and other supplies. You may also want to consider evacuating if necessary.
Weather Advisory
An advisory means the conditions are likely to occur. These are typically used for less severe weather events like frost or winds but can be used for other types of severe weather.
What is a Red Flag Warning?
A red flag warning is issued by the National Weather Service to inform the public, firefighters, and land management agencies that conditions are ideal for wildland fires and any fire which does start could spread rapidly. These are often issued after drought conditions, when humidity is very low and especially when there are high or erratic winds. The possibility of lightning is also a determining factor. Fire fighting agencies often will increase their staffing and equipment resources due to the forecast risk. For the public, a Red Flag Warning often means high fire danger leading to restrictions or bans on outdoor burning including burn piles, burn barrels and campfires. Use of anything which may produce sparks, including outdoor lawn equipment, chainsaws and welding, may be restricted or prohibited.
The weather criteria for fire weather watches and red flag warnings vary with each Weather Service office’s warning area based on the local vegetation type, topography, and distance from major water sources. They usually include the daily vegetation moisture content calculations, expected afternoon high temperature, afternoon minimum relative humidity and daytime wind speed.
An enhanced version of the warning, called extreme red flag warning, may be issued. This means that conditions for fire growth and behavior are extremely dangerous due to a combination of strong winds, very low humidity, long duration, and very dry fuels.
