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Monticello Severe Weather Warnings, Watches and Advisories

Select the Advisory Below for Details
Begins: 2:36 PM Sat, Sep 13, 2025
Expires: 5:45 PM Sat, Sep 13, 2025
Begins: 1:45 PM Sat, Sep 13, 2025
Expires: 4:45 PM Sat, Sep 13, 2025
Begins: 2:34 PM Sat, Sep 13, 2025
Expires: 4:30 PM Sat, Sep 13, 2025
Begins: 6:00 AM Sat, Sep 13, 2025
Expires: 12:00 AM Sun, Sep 14, 2025
Begins: 2:40 PM Sat, Sep 13, 2025
Expires: 3:00 PM Sat, Sep 13, 2025
Begins: 2:32 PM Sat, Sep 13, 2025
Expires: 3:00 PM Sat, Sep 13, 2025


FLASH FLOOD WARNING
Begins: 2:36 PM Sat, Sep 13, 2025
Expires: 5:45 PM Sat, Sep 13, 2025
FFWGJT

The National Weather Service in Grand Junction has issued a

* Flash Flood Warning for...
Western Montezuma County in southwestern Colorado...
Southeastern San Juan County in southeastern Utah...

* Until 545 PM MDT.

* At 236 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 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.

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...
Hovenweep National Monument.

FLASH FLOOD WARNING
Begins: 1:45 PM Sat, Sep 13, 2025
Expires: 4:45 PM Sat, Sep 13, 2025
FFWGJT

The National Weather Service in Grand Junction has issued a

* Flash Flood Warning for...
Southeastern San Juan County in southeastern Utah...

* Until 445 PM MDT.

* At 145 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 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.

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...
mainly rural areas of Southeastern San Juan County

FLOOD ADVISORY
Begins: 2:34 PM Sat, Sep 13, 2025
Expires: 4:30 PM Sat, Sep 13, 2025
* WHAT...Arroyo and small stream flooding caused by excessive
rainfall is expected.

* WHERE...A portion of southeast Utah, including the following
county, San Juan.

* WHEN...Until 430 PM MDT.

* IMPACTS...Rises in small streams and normally dry arroyos. Slot
canyons and steep, dry washes can become raging currents in a
matter of minutes, even from distant rainfall. Do not attempt
hiking or canyoneering.

* ADDITIONAL DETAILS...
- At 234 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause arroyo and small stream
flooding. Between 0.5 and 1.2 inches of rain have fallen.
- Much of the drainages in and near Canyonlands National Park
and Dead Horse State Park are the most likely place to
experience minor flooding.
Additional rainfall amounts of 0.4 to 0.8 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Canyonlands National Park and Dead Horse Point State Park.
- http://www.weather.gov/safety/flood

FLOOD WATCH
Begins: 6:00 AM Sat, Sep 13, 2025
Expires: 12:00 AM Sun, Sep 14, 2025
* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of southwest and west-central Colorado, as well
as portions of eastern Utah. Recent burn scars, including Deer
Creek, Lee, Elk, South Rim, Turner Gulch, and Stoner Mesa, will be
the most susceptible.

* WHEN...Through this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Recent burn scars, including Deer Creek, Lee, Elk, South Rim,
Turner Gulch, and Stoner Mesa, will be the most susceptible, as
well as areas where soil is already saturated due to recent
flooding and significant rainfall from the past couple days.

* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

SPECIAL WEATHER STATEMENT
Begins: 2:40 PM Sat, Sep 13, 2025
Expires: 3:00 PM Sat, Sep 13, 2025
At 240 PM MDT, Doppler radar was tracking a strong thunderstorm 19
miles east of La Sal, moving northwest at 10 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.

Locations impacted include...
Bedrock and Paradox.

This includes the following highways...
Colorado 90 between mile markers 1 and 15.
Colorado 141 between mile markers 80 and 97.

SPECIAL WEATHER STATEMENT
Begins: 2:32 PM Sat, Sep 13, 2025
Expires: 3:00 PM Sat, Sep 13, 2025
At 232 PM MDT, Doppler radar was tracking a strong thunderstorm 16
miles southeast of Canyonlands National Park, or 27 miles west of La
Sal, moving southeast at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.

This storm will remain over mainly rural areas of north central San
Juan County.

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.

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