Southwest flood watches, Oct. 30 to Nov. 2, 2026: Arizona, Las Vegas and Utah

A two-part storm is bringing flash flooding to the desert Southwest. On Friday afternoon, October 30, 2026, the National Weather Service issued Flash Flood Warnings for the Las Vegas Valley and a Flood Warning for the Santa Clara River in southwest Utah, and a second, wetter system arrives Saturday night. Flood Watches now cover the Phoenix and Tucson metro areas, most of central and northern Arizona, northwest Arizona around Kingman, southern and eastern Utah, southwest Colorado and western New Mexico, mostly from Saturday night, October 31, through early Monday, November 2. Many of these areas are still saturated from rain earlier in the week, so runoff will be fast. Standard homeowners insurance does not pay for flood damage, and a flood policy bought today will not cover this weekend.

This page reflects NWS watches, warnings and forecast discussions as of about 2 p.m. MST (Arizona time) on Friday, October 30, 2026. It will be updated as the storm unfolds. For the warning that applies to your address, check your local NWS office: Phoenix, Tucson, Flagstaff, Las Vegas, Salt Lake City, Grand Junction, Pueblo or Albuquerque.

What is happening on Friday, October 30?

• Las Vegas Valley. At 12:55 p.m. PDT, NWS Las Vegas issued a Flash Flood Warning until 4 p.m. for southwestern Clark County, naming Las Vegas, North Las Vegas, Fremont Street, East Las Vegas, Nellis AFB, the Strip, Paradise and UNLV. Radar showed up to 1 inch of rain had fallen. A second warning for central Clark County, including Henderson and Lake Las Vegas, runs until 3:45 p.m.; at 1:58 p.m. NWS said up to 1.75 inches had fallen there and flash flooding was already occurring. Both warnings carry a "considerable" flash flood damage threat. (NWS Las Vegas flash flood warning; NWS Las Vegas flash flood statement)
• Southwest Utah. At 1:13 p.m. MDT, NWS Salt Lake City issued a Flood Warning until 9 p.m. for central Washington County, where USGS gauges on the Santa Clara River in Pine Valley showed rapid rises. Half an inch to 1 inch of rain had fallen, with 1 to 1.5 inches more possible. NWS warned of rockslides, mudslides and debris flows in steep terrain and recently burned areas. (NWS Salt Lake City flood warning)
• Phoenix and central Arizona. A Flood Watch covers the Phoenix metro area, rural Maricopa County and northwest Pinal County until 6 p.m. MST Friday, and the Globe, Superior and Tonto Basin area until 10 p.m. NWS Phoenix said the strongest storms could drop 1 to 2 inches of rain per hour, with localized totals of 1 to 2 inches. NWS Flagstaff has a watch for Yavapai County and northern Gila County, including Prescott, Sedona, Cottonwood and Payson, until 10 p.m. (NWS Phoenix flood watch, 12:26 p.m. MST; NWS Flagstaff flood watch)
• Central New Mexico. NWS Albuquerque extended a Flood Warning for north central Socorro County until 6 p.m. MDT after emergency management reported flooding, with roads closed, including U.S. Highway 60 near Bernardo. La Joya, Bernardo and Contreras are in the warned area. (NWS Albuquerque flood warning, 11:55 a.m. MDT)

When is the heaviest rain expected this weekend?

NWS expects a lull on Saturday, then a stronger system from Saturday night into Monday. NWS Flagstaff's Friday afternoon discussion says the moisture arriving with it will be near record levels for this time of year, with an extended period of moderate to heavy rain and "prolific rainfall totals" across northern Arizona. NWS Salt Lake City describes an atmospheric river meeting a strong cold front Sunday into Monday. (NWS Flagstaff discussion, 1:54 p.m. MST; NWS Salt Lake City discussion)

Area	NWS office	Watch timing	What NWS expects
Phoenix metro, rural Maricopa County, northwest Pinal County	Phoenix	Saturday evening through late Sunday night (to 5 a.m. MST Monday)	1 to 2 more inches over several hours on already moist soil
Tucson metro, Nogales, Sells, Pinal, Graham and Greenlee counties; western Pima and eastern Cochise counties	Tucson	Saturday evening through late Sunday night	Widespread showers Sunday; 0.5 to 1 inch in the valleys (locally 1.5 inches in western Pima County) and 1 to 2 inches or more in the mountains
Northern and central Arizona, including Yavapai County, northern Gila County and the Grand Canyon area	Flagstaff	11 p.m. MST Saturday to 5 a.m. MST Monday	Flash flooding over saturated soils
Northwest Arizona, including Kingman and Colorado City	Las Vegas	Saturday evening through late Sunday night	Over an inch of rain by early Monday; flooding in poor drainage and urban areas
Southern and east central Utah, including St. George, Hurricane, Springdale, Kanab, Price and Green River	Salt Lake City	Late Saturday night through Sunday evening	Washes, streams and rivers running fast and high; backcountry roads likely impassable
Southwest Colorado and southeast Utah, including Durango, Cortez, Pagosa Springs, Blanding and Bluff	Grand Junction	Sunday morning through Monday morning	1 to 3 inches on soils still saturated from recent flooding
Upper Rio Grande and San Luis Valley, Colorado	Pueblo	Mountains late Saturday night to Monday morning; San Luis Valley Sunday afternoon through late Tuesday night	Highest valley risk along the Conejos River and the Rio Grande, including Del Norte and Mogote
Northwest, north central and west central New Mexico	Albuquerque	Late Saturday night through Monday morning	1 to 2 inches near and west of the Continental Divide; river rises likely

Snow will follow in the mountains. NWS Salt Lake City says snowfall above 8,000 feet may exceed 12 inches in some Utah mountain areas Sunday night into Monday, and Winter Storm Watches are posted for the San Juan Mountains in Colorado. Daylight saving time ends at 2 a.m. Sunday, November 1, so Nevada, Utah, Colorado and New Mexico alerts will switch to standard time partway through the event; Arizona stays on MST.

Does homeowners insurance cover flash flood damage?

Usually not. FloodSmart, FEMA's National Flood Insurance Program (NFIP) site, says most homeowners and renters insurance does not cover flood damage; flood coverage comes from a separate flood policy, such as one through the NFIP. That applies to water that runs off a desert wash or flooded street into a house, even if it was dry an hour earlier. Damage that is not flood, such as a tree or wind damage from a thunderstorm, may still fall under the homeowners policy, so ask your insurer before you assume a loss is excluded. (FloodSmart, what flood insurance covers)

A new NFIP policy normally takes effect 30 days after purchase, so buying one now will not cover this weekend. FloodSmart lists four exceptions, such as buying while making, extending or renewing a mortgage. The guide to the NFIP waiting period explains them. In the Southwest, the most relevant one is narrow: there is a one-day wait if a flood is caused or worsened by a wildfire on federal land and the policy is bought within 60 days of the fire's containment date.

What should homeowners do before Saturday night?

1. Know what a watch means. NWS says a Flood Watch means conditions are favorable for flooding, and a Flash Flood Warning means a flash flood is imminent or occurring; if you are in a flood-prone area, move to higher ground right away. (NWS, flood watch vs. warning)
2. Stay out of flooded roads, washes and low-water crossings. NWS warnings repeat that most flood deaths occur in vehicles. (NWS, Turn Around Don't Drown)
3. Photograph your home and belongings now. Pictures taken before the storm make it easier to show what changed. Move documents, valuables and items stored on garage or basement floors up off the ground.
4. Clear what you can reach. Clean gutters, downspouts and yard drains, and move vehicles away from washes and low spots. If your home is near a recent burn scar, take debris flow warnings seriously.
5. Find your county's flood information. Local flood control districts post rain and stream gauge data and flood safety information, for example the Flood Control District of Maricopa County, Pima County Regional Flood Control District and Clark County Regional Flood Control District.

How do I file a flood claim if water gets in?

FEMA's NFIP guidance (FloodSmart, start a claim; NFIP claims checklist): report the claim to your flood insurance provider as soon as possible, photograph and video the damage and the water line before cleaning, keep samples of flooring and carpet, and send your documentation within 60 days of the flood or the timeframe your adjuster gives. NFIP policies do not cover mold, so dry out the house once the damage is documented. More detail is in the flood insurance claim guide and mold after flooding.

FEMA help for households without flood insurance requires a presidential major disaster declaration with Individual Assistance for your county. As of Friday, October 30, OpenFEMA showed no declaration for Arizona, Nevada or Utah for this weather; New Mexico has only the October 26 emergency declaration EM-3660 for last week's northern flooding, without Individual Assistance. (OpenFEMA, queried October 30, 2026) FEMA assistance vs. flood insurance explains the difference.

For southwest Colorado and New Mexico, where rivers flooded from October 21 to 23, the running record is in southwest Colorado flooding, October 2026, with state details on Colorado flood risk and New Mexico flood risk.

Quick answers

Which areas are under Flood Watches this weekend?

As of Friday afternoon, October 30, 2026, NWS Flood Watches covered the Phoenix and Tucson metro areas, most of central and northern Arizona, northwest Arizona, southern and east central Utah, southwest Colorado including the San Luis Valley, and northwest and west central New Mexico, mostly from Saturday night through early Monday, November 2.

Does homeowners insurance cover flash flood damage in Arizona, Nevada or Utah?

Usually not. FEMA's FloodSmart site says most homeowners and renters policies do not cover flood damage; flood coverage comes from a separate flood policy, such as one through the NFIP. Wind or tree damage from the same storm may be covered by the homeowners policy.

Can I buy flood insurance now to cover this weekend?

Generally no. A new NFIP policy normally takes effect 30 days after purchase. Exceptions include buying while making, extending or renewing a mortgage, and a one-day wait for flooding caused or worsened by a wildfire on federal land if the policy is bought within 60 days of containment.

What is the difference between a Flood Watch and a Flash Flood Warning?

A Flood Watch means conditions are favorable for flooding, but it is not certain. A Flash Flood Warning means a flash flood is imminent or already happening, and people in flood-prone areas should move to higher ground immediately.

Sources

• NWS Las Vegas: Flash Flood Warning (12:55 p.m. PDT October 30), Flash Flood Statement (1:58 p.m. PDT), Flood Watch (12:10 p.m. PDT)
• NWS Phoenix: Flood Watch (12:26 p.m. MST October 30); forecast discussion
• NWS Tucson: Flood Watch (10:36 a.m. MST October 30); forecast discussion
• NWS Flagstaff: Flood Watch; forecast discussion (1:54 p.m. MST October 30)
• NWS Salt Lake City: Flood Warning (1:13 p.m. MDT October 30), Flood Watch (8:05 a.m. MDT), forecast discussion
• NWS Grand Junction, Pueblo and Albuquerque: Grand Junction Flood Watch; Pueblo Flood Watch (11:29 a.m. MDT October 30); Albuquerque Flood Watch (11:50 a.m. MDT) and Flood Warning (11:55 a.m. MDT)
• NWS safety: flood watch vs. warning; Turn Around Don't Drown
• FEMA: FloodSmart, what flood insurance covers; start a claim; claims checklist; OpenFEMA declarations since October 20, 2026