Flash Flood Warning for Iron and Washington Counties, Utah
The National Weather Service (NWS) in Salt Lake City has issued a Flash Flood Warning for portions of Iron County and Washington County, Utah, as slow-moving thunderstorms continue to produce heavy rainfall capable of causing dangerous flash flooding.
Meteorologists report that between 0.75 and 1.5 inches of rain has already fallen across the warned area, with the heaviest rainfall occurring in and around New Castle. Additional rainfall totals of 0.25 to 0.75 inches are possible as storms continue through the area.
Areas Most at Risk
Communities expected to experience flash flooding include:
- Enterprise
- New Castle
Low-lying roads, normally dry washes, creeks, streams, and urban areas are especially vulnerable to rapidly rising water.
Flash Flood Hazards
Heavy thunderstorms are producing life-threatening flash flooding across portions of southwestern Utah. Floodwaters may quickly inundate:
- Normally dry washes
- Creeks and streams
- Residential neighborhoods
- Highways and rural roads
- City streets
- Underpasses
- Low-water crossings
In the hilly terrain of Iron and Washington Counties, hundreds of low-water crossings can become extremely dangerous during heavy rainfall, often flooding with little warning.
Rainfall Totals
Current observations indicate:
- 0.75 to 1.5 inches of rain has already fallen.
- An additional 0.25 to 0.75 inches of rainfall is possible.
Even relatively small additional rainfall amounts can rapidly worsen flooding where soils are already saturated.
Flash Flood Safety Tips
If you are in the warning area:
- Never drive through flooded roadways.
- Turn Around, Don’t Drown®.
- Seek higher ground immediately if flooding develops.
- Stay away from fast-moving creeks and washes.
- Monitor local weather updates for additional warnings.
Do not attempt to cross flooded roads. Water depth and road damage are often impossible to determine, and just a small amount of moving water can sweep a vehicle away. Always find an alternate route.
Continue Monitoring Conditions
Residents of Iron County and Washington County should remain alert as thunderstorms continue moving across the region. Flash flooding can develop rapidly, especially in areas with steep terrain, dry washes, and poor drainage.
Continue monitoring forecasts and warnings from the National Weather Service and local emergency management officials until the Flash Flood Warning expires.
Stay with Radar Watch HQ for the latest severe weather alerts, flash flood warnings, and breaking weather updates across the United States.

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Radar Watch HQ Top 5 Essential Emergency Preparedness Picks
Whether you’re preparing for severe thunderstorms, flash flooding, hurricanes, wildfires, or extended power outages, these five emergency essentials can help keep your household safer when severe weather strikes.
A portable power station provides reliable backup electricity during outages, allowing you to power phones, medical devices, laptops, lights, small appliances, and communication equipment without fuel.
Best for:
- Extended power outages
- Severe thunderstorms
- Hurricanes
- Winter storms
- Wildfires
2. Flood Protection Barriers & Sandless Flood Bags
Flood barriers help divert or absorb water before it enters garages, doorways, and low-lying areas. They deploy quickly and can help reduce property damage during flash flooding.
Best for:
- Flash Flood Warnings
- Heavy rainfall
- River flooding
- Coastal flooding
3. Rechargeable LED Flashlights
Bright, dependable flashlights are essential when the power goes out. Rechargeable or solar-powered models provide long-lasting illumination for navigating safely indoors and outdoors.
Best for:
- Overnight power outages
- Emergency evacuations
- Storm damage inspections
Keep phones, tablets, weather radios, and USB-powered devices charged when the electrical grid is unavailable. A solar power bank offers an additional charging option during prolonged emergencies.
Best for:
- Communication during outages
- Emergency weather alerts
- Travel and evacuation
A NOAA Weather Radio delivers official weather alerts directly from the National Weather Service, even when cellular networks or internet service are unavailable. It remains one of the most dependable ways to receive life-saving warnings.
Best for:
- Tornado warnings
- Severe thunderstorm warnings
- Flash flood warnings
- Hurricane alerts
- Winter storm emergencies
Why Radar Watch HQ Recommends These Essentials
At Radar Watch HQ, preparedness is just as important as staying informed. These five emergency essentials can help you stay connected, protect your property, and safely navigate severe weather events. Having supplies ready before storms arrive allows you to respond quickly when warnings are issued and conditions begin to deteriorate.
