Dust Storm Warning: when to delay travel and how to get off the road

Read the exact product name

Outlooks, forecasts, advisories, watches, and warnings are different decisions

Dust risk may first appear in a broad outlook or local forecast. An advisory means hazardous dust is happening or expected, while a warning means dangerous visibility is happening or about to happen. The words before “advisory” or “warning” also tell you whether the event is expected to be sudden or longer-lasting.

Outlook

A planning product may identify a period favorable for strong winds, dry soil, or thunderstorm outflows. It describes potential, not a current dust alert or a guarantee that dust will reach a particular road.

Forecast

A local forecast describes expected wind, thunderstorms, and visibility. Check the route and destination before leaving, then check again because dust can develop rapidly.

Dust Advisory

A short-duration, often thunderstorm-driven dust event is happening or about to happen. Visibility may drop to one mile or less but remain greater than one-quarter mile. Delay or reroute travel and stay alert.

Blowing Dust Advisory

Widespread blowing dust is expected over a longer period, with visibility generally one mile or less but greater than one-quarter mile. Travel can become hazardous across a broad area.

Dust Storm Warning

A sudden, dangerous dust storm is happening or about to happen, with visibility reduced to one-quarter mile or less. Stay off the road when possible and take action immediately if dust reaches your route.

Blowing Dust Warning

Dangerous widespread blowing dust is expected over a longer period, with visibility at one-quarter mile or less. Travel may be dangerous or life-threatening.

Watch

NWS does not use a dedicated Dust Storm Watch in its standard dust product set. A High Wind Watch means strong winds are possible, but it does not by itself say that a dust storm will occur. Read every product by its full name.

Visibility can collapse quickly

A clear road ahead is not proof that the route will stay clear

Strong wind over dry, bare ground can lift dust into the air. Thunderstorm outflow can produce a fast-moving wall of dust, sometimes called a haboob, while a larger wind event can create blowing dust across a wider area for longer. Both can hide stopped traffic, lane edges, signs, and road closures.

• Do not enter a dust cloud when you can safely delay, turn around, or use another route.
• Check alerts for the entire route, not only the weather at the starting point.
• Expect the first sharp gust from a thunderstorm to arrive before rain and to lift dust from dry ground.
• Be especially cautious on exposed highways, recently worked fields, dry lake beds, and construction areas.
• Never treat an advisory boundary as a precise edge between safe and unsafe visibility.

If dense dust reaches the road

Leave the pavement completely, stop, and make the vehicle dark

NWS guidance is deliberately different from ordinary low-light driving advice. If dense dust is blowing across or approaching the road, pull off the pavement as far as possible. A vehicle stopped beside the road with lights illuminated may be mistaken for moving traffic and draw another driver toward it.

1. Slow down smoothly, check surrounding traffic, and move completely off the paved roadway.
2. Stop in a location separated from the travel lane whenever one is available.
3. Turn off every exterior light, including hazard flashers.
4. Set the emergency brake.
5. Take your foot off the brake pedal so the brake lights are not illuminated.
6. Stay belted inside the vehicle and wait for visibility to improve.

Never stop in a traffic lane. Do not pull beneath a bridge, onto a narrow shoulder, or into another place where the vehicle still blocks traffic. If a crash or disabled vehicle blocks the road, call 911 from a safe location.

If you cannot leave the roadway yet

Keep moving only as slowly as visibility allows while looking for a safe exit

Pulling fully off the pavement is the preferred action. If that is temporarily impossible, NWS advises proceeding at a speed suitable for the visibility, turning on lights, sounding the horn occasionally, and using the painted center line as a guide while looking for a safe place to leave the roadway.

• Do not make a sudden stop in the travel lane.
• Do not follow another vehicle's taillights closely; that vehicle may leave the road or stop abruptly.
• Avoid passing, abrupt lane changes, and hard braking.
• Once fully off the paved road and stopped, switch from lights on to all lights off and remove your foot from the brake.
• Resume travel only after visibility improves enough to see and stop safely.

Dust and wind alerts are related but not interchangeable

Wind products describe wind; dust products describe dangerous visibility

A Wind Advisory, High Wind Watch, or High Wind Warning focuses on the expected wind and its impacts. A dust advisory or warning focuses on airborne dust and visibility. Both can be active at once, and a thunderstorm can also carry a Severe Thunderstorm Warning. Read each alert separately and follow the most protective instruction that applies to your location.

• A High Wind Watch means strong winds are possible; secure loose items and reconsider exposed travel.
• A High Wind Warning means damaging or dangerous winds are happening or expected; seek shelter and avoid unnecessary travel.
• A Dust Storm Warning adds an immediate visibility hazard that can make a highway unsafe even before wind damage occurs.
• An Air Quality Alert addresses unhealthy air, not whether a specific road is visible or open.
• A road closure from transportation or law-enforcement officials overrides a general forecast or travel plan.

At home and outdoors

Get inside, close openings, and keep receiving official alerts

During a dust storm, move indoors and close windows and doors. Strong wind may also carry loose objects and knock down tree limbs or power lines. Keep away from windows, charge essential devices when conditions allow, and use more than one way to receive warnings.

• Bring children and pets indoors before visibility deteriorates.
• Secure only those outdoor objects that can be handled safely before winds arrive.
• Follow official air-quality guidance if dust causes respiratory concerns.
• Never approach a downed power line; report it to local authorities or the utility.
• Wait for official travel information instead of assuming a road reopened when the sky begins to clear.