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Interstate Weather Alerts for Owner Operators

See active National Weather Service warnings, watches and advisories along the major interstates, with the cities they touch and when they end.

All interstates

Check every corridor at once. It takes about a minute.

Alerts come from the National Weather Service. We check a city about every 25 to 250 miles along each interstate, so a storm between two cities can be missed, and an alert covers a county or zone, not one stretch of road. This does not show road closures or crashes. Check your state's 511 line and the National Weather Service for the latest, and follow your company's rules. Do not use this tool while driving.

Numbers tight? Let a dispatcher find better loads.

This tool is free. If it shows you are leaving money on the road, Grow Trucking finds loads, negotiates rates and does the paperwork for owner-operators and small fleets.

Talk to a dispatcher Call (845) 400-9179

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How do I check weather alerts on my interstate?

Check the National Weather Service alerts for the cities along your interstate. A warning means the bad weather is happening or about to, a watch means it may develop, and an advisory means driving may be hard. Check again before you leave and as you go, and use your state's 511 line for closures.

  1. Pick your interstate and read the summary line: warnings, watches and advisories.
  2. Look at each alert's kind, the cities it touches and when it ends.
  3. Plan around warnings first. Slow down, add time, or park safely if you must.
  4. Check the cities we could not reach, and press Refresh to try again.
  5. Check your state's 511 line for closures and chain rules, since this tool shows weather only.
What the alert levels mean
LevelWhat it means for you
WarningThe bad weather is happening or about to. Take action now.
WatchBad weather may develop. Be ready and check again.
AdvisoryConditions can make driving hard. Take extra care.
Kinds we showWinter, wind, fog, flood, severe storm, tornado, dust, heat and cold, and hurricane alerts
Kinds we leave outRip currents, coastal and marine alerts, and air quality alerts

Alerts come from the National Weather Service (api.weather.gov). We check a city about every 25 to 250 miles along each interstate, so a storm between two cities can be missed. An alert covers a county or zone, not one stretch of road. This tool does not show closures or crashes.

Last reviewed September 2026. Sources: National Weather Service: alerts API; National Weather Service: watch, warning, advisory definitions.

Frequently Asked Questions - Interstate Weather Alerts

How do I check weather alerts along my route?
Pick your interstate and the tool shows the active National Weather Service warnings, watches and advisories that matter to trucks at cities along that road, with when each one ends. Use Check all interstates for a quick board of every corridor. For a route that is not on one interstate, the Toll Estimator's route weather checks your exact route by the hour.
What is the difference between a weather warning, watch and advisory?
A warning means the bad weather is happening or about to happen, so take action now. A watch means it may develop, so be ready and check again. An advisory means conditions can make driving hard, so take extra care. This page marks each alert with its level, and shows warnings first.
What wind speed is dangerous for a semi truck?
There is no single number. Wind hurts empty trailers and tall or light loads the most, and gusts and crosswinds are worse than steady wind. NWS issues Wind Advisories and High Wind Warnings, and the speeds that trigger them vary by region. If wind alerts cover your road, slow down, expect gusts on bridges and open ground, and think about parking an empty trailer. Follow your company's rules.
What does a winter storm warning mean for truckers?
It means the National Weather Service expects a heavy snow, ice or mix that will make travel hard or dangerous. Expect slow, slick roads, closures and chain rules on some passes. Check the road conditions for your state, plan extra time, and think about where you would park safely if the road closes. The Hours of Service Trip Planner can show how a delay changes your arrival.
Which interstates does the tool cover?
It covers 17 major interstates: I-5, I-10, I-15, I-20, I-25, I-29, I-35, I-40, I-55, I-65, I-70, I-75, I-80, I-81, I-90, I-94 and I-95. For each one it checks a city about every 25 to 250 miles along the road, most of them 60 to 150 miles apart, and lists the cities.
Can this miss a storm on my road?
Yes. We check cities along the road, so an alert that hits only the stretch between two cities can be missed. An alert also covers a county or zone, not one mile of road. Treat this as an early warning, and use your state's 511 line and the National Weather Service for the details.
Does this show road closures or crashes?
No. It shows weather alerts only. For closures, chain requirements and crashes, use your state's 511 service or the state DOT's site. Some closures follow a weather alert, so a warning on your road is a reason to check 511.
Where does the weather data come from?
From the National Weather Service alerts feed at api.weather.gov, a free service run by the U.S. government. We show the alerts as NWS sends them, with NWS's own end time and the office that issued it. We only keep alerts that matter to driving, and we skip old, cancelled and test alerts. If NWS does not answer for a city, we say so instead of showing it as clear.
Why does the page say a city could not be checked?
Sometimes the National Weather Service does not answer in time. We do not want you to read that as clear weather, so we list the cities we could not check. Press Refresh to try again.

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Go Further With Interstate Weather Alerts

Guides, services and reference pages that go with this tool.