PHOENIX – With back-to-back snowstorms bearing down on Arizona, know what you’re driving into before heading to the high country.

Highway conditions can deteriorate quickly during severe weather as snow accumulates and drivers struggle, and closures can happen suddenly and be prolonged. If enough snow falls, the Arizona Department of Transportation may close lesser-used highways while snowplows address busier routes.

Examples of the latter: If conditions warrant, ADOT may close US 180 northwest of Flagstaff, between milepost 224 west of Bader Road and milepost 248, and State Route 89A through Oak Creek Canyon (mileposts 386-397) to focus on Interstates 17 and 40 and other routes. In eastern Arizona, US 191 between Alpine and Hannagan Meadow (mileposts 231-253) isn’t plowed at night and on weekends.

ADOT’s nearly 200 snowplows and 400 certified snowplow drivers are ready to deal with snow and ice, and tips for driving around snow and ice are available at azdot.gov/KnowSnow. But the safest decision during extreme weather is delaying travel until conditions improve and letting ADOT’s plows do their work.

So do your research, including staying up to date on National Weather Service forecasts.

Before deciding whether to drive into areas where snow is expected or falling, motorists should get the latest on highway conditions and any closures from the ADOT Traveler Information Center, available at az511.gov or by calling 511. In addition, traffic cameras at az511.gov provide a view of conditions for those using desktop computers and laptops.

ADOT’s Twitter (@ArizonaDOT) and Facebook (facebook.com/AZDOT) accounts are excellent sources of information and interaction on traffic conditions.

In addition to doing your research, here are some other tips for driving in challenging winter weather:

• Slow down: Adjust speed to conditions.
• Create space: Leave extra room between your vehicle and the vehicle in front of you. Avoid sudden braking.
• Give snowplows room: Slow down and stay at least four vehicle lengths behind a plow. Wait for a plow to pull over before passing. The safest place to be when there’s snow and ice on a road is behind a snowplow.
• Leave prepared: Bring extra clothing and gloves, make sure the gas tank is half to three-quarters full at all times, keep cellphones charged, and pack extra drinking water, snacks and all necessary medications.
• Pack an emergency kit: It should include blankets, a flashlight, an ice scraper, a small shovel, a container of sand or cat litter for traction and warning lights or reflectors.
• Beware of black ice: Melting snow can turn into ice, especially at night. Ice tends to form on bridges first and can be difficult to see.

For more tips, visit azdot.gov/KnowSnow.

PHOENIX – With two winter storms forecast to blanket Arizona’s high country with as much as 24 inches of snow between Thursday and Saturday, motorists should be prepared for hazardous driving conditions, delays and possible highway closures – and consider delaying travel during the worst weather.

The National Weather Service forecast calls for the first storm to reach the state late Thursday, with a colder, more powerful storm moving in Friday evening through Saturday morning. Snow levels will drop to about 5,000 feet Thursday and as low as 4,000 feet Saturday morning. The heaviest snowfall is expected over the Mogollon Rim and areas above 7,000 feet in Yavapai County. That includes areas from Flagstaff to Forest Lakes and into the White Mountains.

Gusting winds are expected from both storms, meaning windblown snow on top of the heavy accumulation could create dangerous driving conditions. Slide-offs and crashes in severe weather cause traffic backups and lead to highway closures.

With more than an inch of rain forecast for some desert locations, water could accumulate in low spots or washes.

The Arizona Department of Transportation’s nearly 200 snowplows and 400 certified snowplow drivers are ready to deal with snow and ice, and ADOT’s website offers tips for driving in the rain, in wind that reduces visibility and around snow and ice.

Here are some of the driving tips:

• Consider waiting out the storm if conditions warrant: Highways can close suddenly in severe weather, and stranded vehicles make it more difficult for snowplows to do their work. Delaying travel may be the safest decision.
• Slow down: Adjust speed to conditions.
• Create space: Leave extra room between your vehicle and the vehicle in front of you. Avoid sudden braking.
• Give snowplows room: Slow down and stay at least four vehicle lengths behind a plow. Wait for a plow to pull over before passing. The safest place to be when there’s snow and ice on a road is behind a snowplow.
• Leave prepared: Bring extra clothing and gloves, make sure the gas tank is half to three-quarters full at all times, keep cellphones charged, and pack extra drinking water, snacks and all necessary medications.
• Pack an emergency kit: It should include blankets, a flashlight, an ice scraper, a small shovel, a container of sand or cat litter for traction and warning lights or reflectors.
• Beware of black ice: Melting snow can turn into ice, especially at night. Ice tends to form on bridges first and can be difficult to see.

Many of these tips apply to driving on wet roads as well, including waiting out threatening weather. Some other tips:

• Inspect windshield wipers and replace them if necessary.
• Turn on headlights while driving.
• Avoid areas where water is pooling in travel lanes.

Updates on freeway conditions and restrictions are available on ADOT’s Traveler Information site at az511.gov or by calling 511. ADOT also provides state highway information via its Twitter feed (@ArizonaDOT).

PHOENIX – With light snow in the forecast heading into a long weekend, winter recreation areas along US 180 near Flagstaff are likely to attract heavy traffic that leads to delays.

Those planning to visit snow-play areas along US 180 over the Martin Luther King Jr. Day weekend should leave prepared to spend extended time in winter weather – and to face traffic backlogs getting back to Flagstaff that increase as the day goes on.

They also should prepare for the trip by researching the locations of snow-play areas and whether those areas have enough snow to be open. The Flagstaff Convention & Visitors Bureau lists snow-play locations at FlagstaffArizona.org and offers a hotline at 844.256.SNOW with the latest snow conditions.

Don’t park along highways or interstates to play in the snow. That’s dangerous for you, other drivers and first responders. It also can exacerbate traffic congestion on US 180.

Once they get to Flagstaff on their trips home, those heading to points south at day’s end can save time getting to Interstate 17 by taking a marked alternate route to Interstate 40 at Butler Avenue, via Switzer Canyon Drive and Route 66, then heading west to I-17.

Motorists traveling to Arizona’s high country should allow extra travel time with snow in the forecast and prepare as they would for any extended period in cold weather. That includes taking winter coats, blankets, a fully charged cellphone and portable charger, plenty of fuel, drinking water, snacks and medications. ADOT offers more tips at azdot.gov/KnowSnow.

Give snowplows a wide berth, staying four car lengths behind. Never pass a snowplow that’s clearing a road.

ADOT’s Twitter (@ArizonaDOT) and Facebook (facebook.com/AZDOT) accounts are excellent sources of information on traffic conditions, as is the ADOT Traveler Information Center available at az511.gov or by calling 511.

PHOENIX – ADOT has nearly 200 snowplows and 400 certified drivers stationed around the state to address snow and ice. But as Christmas weekend showed, especially on Interstate 40 from Flagstaff west to Ash Fork and on Interstate 17 south of Flagstaff, a snowstorm can be so intense that travel becomes unsafe quickly.

This is why drivers should monitor conditions before leaving and be prepared to delay travel until snowplows can do their work. A few inches of snow fell per hour at the height of last weekend’s storm, causing crashes and slide-offs and resulting in long closures because of the time required to get vehicles cleared and lanes open again.

With another storm forecast for New Year's weekend, recent experience reinforces the value of waiting until roads are plowed and ready for traffic. If there's any question about whether it's a good idea to go, you'd probably do well to wait.

Because snowstorms can result in sudden closures sometimes lasting for hours, ADOT offers tips at azdot.gov/KnowSnow that include packing an emergency kit with blankets, warm clothing, snacks and water, having a charged cellphone and keeping your gas tank half to three-quarters full at all times. But the safest option when snow is falling is not being on road unless it's absolutely necessary.

In addition to watching National Weather Service forecasts for the area where you're planning to travel, be sure to check az511.gov or call 511 for the latest road conditions. ADOT's Twitter account (@ArizonaDOT) is a good source of information and interaction.

When highways are plowed and ready for traffic, many drivers may be heading uphill to play in the snow. If you're among them, be sure to leave prepared, as New Year's usually is an especially busy weekend at snow-play areas, especially along US 180 outside of Flagstaff, resulting in long lines of traffic at day's end.

Those heading to snow-play sites along US 180 may want to consider making an earlier start home, as on busy days traffic builds toward Flagstaff throughout the afternoon. When they reach Flagstaff, drivers taking Interstate 17 south can save time by following a marked alternate route to Interstate 40 at Butler Avenue, via Switzer Canyon Road and Route 66, and then heading west to I-17. A map of this route, as well as locations of snow-play sites, is available at FlagstaffArizona.org.

Travelers also should resist the temptation to stop on highway shoulders to play in the snow, in part because plows throw snow and ice far from the roadway. In addition, other drivers may be distracted by your vehicle and first responders may need to use the shoulder. Exit highways and park in designated areas.

PHOENIX ‒ Whether yours is a white Christmas or a wet Christmas, the Arizona Department of Transportation will make you a deal:

With rain and snow in the forecast, ADOT will be ready to respond before, during and after to whatever the weather may bring.

In return, you should study weather and highway conditions before your trip, leave prepared and drive with patience ‒ or delay travel if conditions warrant.

The latest National Weather Service forecast for Arizona’s high country calls for between 6 and 12 inches of snow at elevations between 6,000 and 8,000 feet beginning late Saturday morning and continuing into Saturday evening. Windblown snow is expected to create hazardous driving conditions in areas.

For lower elevations, the latest forecast calls for rain and gusting wind during the same period.

ADOT has nearly 200 snowplows and 400 certified snowplow operators ready to clear highways around the state, but if snowfall is heavy and widespread it may take some time for them to reach every stretch.

You hold the keys to safety if your route may have snow and ice. These are just some of the winter-driving tips available at azdot.gov/KnowSnow.

• Slow down: Adjust your speed to conditions.
• Create space: Leave extra room between your vehicle and the one in front of you. Avoid sudden braking.
• Give snowplows room: Slow down and stay at least four vehicle lengths behind a plow. Wait for a plow to pull over before passing, and remember: The safest place to be when there’s snow and ice on a road is behind a plow.
• Leave prepared: Bring extra clothing and gloves, make sure your tank is half to three-quarters full at all times, keep your cellphone charged and pack extra drinking water, snacks and all necessary medications.
• Pack an emergency kit: It should include blankets, a flashlight, an ice scraper, a small shovel, a container of sand or cat litter for traction and warning lights or reflectors.
• Beware of black ice: Melting snow can turn into ice, especially at night. Ice tends to form on bridges first and can be difficult to see.
• Consider waiting it out: Highways can close suddenly in severe weather due to accumulating snow and ice or due to crashes. If conditions warrant, delaying travel may be the safest decision.

Many of these tips apply to driving on wet roads as well, including waiting out threatening weather if need be. Here are some others:

• Inspect windshield wipers and replace them if necessary.
• Turn on headlights while driving.
• Avoid areas where water is pooling in travel lanes.

Wherever your travels take you this holiday weekend, you can get the latest highway conditions by calling 511 or visiting the Arizona Traveler Information site (az511.gov), where traffic and weather cameras allow you to see current conditions around the state. ADOT’s Facebook (facebook.com/AZDOT) and Twitter (@ArizonaDOT) accounts are excellent sources of information and interaction.

PHOENIX ‒ The combination of snow in the forecast and holidays can be a magnet for those looking to ski, sled or toss a few snowballs.

If you’re heading to play in the snow over Christmas or New Year’s weekends, leave prepared for the strong possibility that you’ll see heavy traffic and delays, especially on the trip home, in popular areas such as US 180 northwest of Flagstaff.

At day’s end, when people start heading home on US 180, it can take 90 minutes or longer to get back to Flagstaff.

Leave prepared to spend more time than you may expect in winter weather. The Arizona Department of Transportation’s tips for winter driving in Arizona’s high country, available at azdot.gov/KnowSnow, include dressing for the cold and packing coats, blankets, gloves and scarves. Make sure you have a fully charged cellphone and plenty of water and snacks, and keep your tank half to three-quarters full at all times.

Travelers should resist the temptation to stop on highway shoulders to play in the snow, in part because plows throw snow and ice far from the roadway. In addition, other drivers may be distracted by your vehicle and first responders may need to use the shoulder. Exit highways and park in designated areas.

Those heading to snow-play sites along US 180 may want to consider making an earlier start home, as on busy days traffic builds toward Flagstaff throughout the afternoon. When they reach Flagstaff, drivers taking Interstate 17 south can save time by following a marked alternate route to Interstate 40 at Butler Avenue, via Switzer Canyon Road and Route 66, and then heading west to I-17. A map of this route is available at FlagstaffArizona.org.

Information on designated snow-play areas around Flagstaff is available at FlagstaffArizona.org or by calling 1.844.256.SNOW.

For the latest highway conditions around the state, visit the ADOT Traveler Information Center at az511.gov or call 511. ADOT’s accounts on Twitter (@ArizonaDOT) and Facebook (facebook.com/AZDOT) are excellent sources of information and interaction.

PHOENIX – Snow in Arizona’s high country is a magnet for desert dwellers looking to ski, sled, make snowmen and have snowball fights.

Too often, however, a vehicle full of people heading to play in the snow winds up parked on the shoulder of a state highway or even Interstate 17 rather than pulled safely into a designated parking area well off the road. This creates a hazard for more than just the occupants.

“It’s dangerous for the driver who stops on the highway and for other drivers who might be distracted by your vehicle. It’s also dangerous for first responders who may need access to the shoulder to help someone,” said Audra Merrick, district engineer for the Arizona Department of Transportation’s North Central District. “As tempting as it can be, never stop along the highway to play in snow.”

With snow in the forecast this weekend for the Flagstaff area, ADOT reminds those heading to sled and throw snowballs that highway shoulders are for emergencies and that parking on them to play in the snow is hazardous in a number of ways:

• Other drivers may be distracted by your vehicle.
• Other drivers may pull over as well to play in the snow, compounding the problem.
• Your vehicle may interfere with first responders who need to use the shoulder.
• Plows can throw snow and ice far off highways.
• It’s much safer to re-enter highways from on-ramps and other designated entrances.

These dangers apply along highways other than interstates, including US 180 northwest of Flagstaff, where those from lower elevations often flock after it snows. Those who park on highway shoulders to play, even in areas where traffic may seem light, are endangering themselves and others. Locations of designated snow-play areas around Flagstaff are available at flagstaffarizona.org or by calling 1.844.256.SNOW.

Those heading to enjoy winter in Arizona’s high country should learn how to prepare for extended time in cold, snow and ice, as well as how to be ready for potentially harsh driving conditions, by visiting azdot.gov/KnowSnow.

ADOT’s suggestions of items to have in a vehicle include warm clothing and blankets, a fully charged mobile phone and charger, a flashlight with extra batteries, drinking water, healthy snacks, a first-aid kit and necessary medications. Get plenty of rest, plan your route and take frequent breaks from driving.

Make sure your gas tank is at least half to three-quarters full at all times, and ensure that your wipers, window defroster, headlights, taillights, brake lights and turn signals work. Snow tires, chains or studded tires may be required depending on the conditions.

Wherever they are traveling in Arizona, drivers need to be prepared for possible delays caused by crashes or heavy traffic. Another cause of congestion during the winter is the popularity of snow-play areas. Those playing in the snow along US 180, for example, may need 90 minutes or more to get back to Flagstaff at day’s end, especially after it snows and over holiday weekends.

“It’s very important that drivers know what they’re heading into when they come up to play in the snow,” Merrick said. “Our crews are committed to keeping the highways open and safe, but weather, road conditions and traffic can change quickly, so leave prepared. To stay up-to-date with the latest highway conditions around the state, visit the ADOT Traveler Information Center at az511.gov or call 511. ADOT’s Twitter (@ArizonaDOT) and Facebook page (/AZDOT) are excellent sources of information and interaction.

PHOENIX – A winter storm packing rain, wind and, later, the possibility of light snow and ice in the high country is all the more reason for Arizonans to drive with care and adjust their speed to conditions.

While much of the state is expected to see rain Friday, the forecast for many areas also calls for sustained winds of between 30 and 40 mph and even stronger gusts. Beginning Friday night, a cold front will lower snow levels to around 5,000 feet and drop temperatures, meaning drivers in Arizona’s high country should be prepared for the possibility of light snow accumulating as well as ice on the road.

The Arizona Department of Transportation’s nearly 200 snowplows and 400 certified snowplow drivers are ready to deal with snow and ice, and ADOT’s website offers tips for driving in the rain, in wind that reduces visibility and around snow and ice.

Here are some of them:

• Slow down and be aware of the risk of skidding or hydroplaning.

• Maintain a safe distance between your vehicle and the one in front of you. This helps prevent sudden braking, which can cause you to slide on wet or icy pavement.

• Before you drive, inspect your windshield wipers, and replace them if necessary.

• Turn on your headlights while driving in bad weather.

• If you’re planning to drive in the high country, consult ADOT’s Know Snow winter-driving tips at azdot.gov/KnowSnow. These start with wearing warm clothing, having a fully charged cellphone and making sure your tank is at least half full at all times.

For the most current information about highway conditions and restrictions statewide, visit ADOT’s Travel Information Site at az511.gov, follow us on Twitter (@ArizonaDOT) or call 511.

PHOENIX ‒ State Route 67 leading to the North Rim of Grand Canyon National Park will close for the winter on Thursday, Dec. 1.

The highway will be blocked to traffic about a half mile from its junction with US 89A at Jacob Lake. With park facilities closed for the winter, the Arizona Department of Transportation doesn’t clear snow from the highway, which leads 43 miles south from US 89A.

The North Rim averages more than 9 feet of snow annually, according to the National Weather Service.

SR 67 is scheduled to reopen in mid-May along with North Rim lodges, campgrounds and other amenities.

State Route 64 remains open all year to the Grand Canyon’s South Rim.

In addition, State Route 473, a 10-mile-long highway that provides direct access to the Hawley Lake recreational area in the White Mountains, is scheduled to close on Thursday, Dec. 1. Also in that area, SR 273 and SR 261 are scheduled to close Dec. 31 unless a severe storm occurs before then.

In southern Arizona, the upper, unpaved portion of State Route 366 that leads to Mount Graham near Safford has already closed for winter. Motorized vehicles aren’t allowed on SR 366 past a locked gate a half mile past the Coronado National Forest’s Shannon Campground, but hikers, mountain bikers and cross-country skiers can still use the area. 

Both SR 473 and upper SR 366 will reopen in the spring, along with other local highways that close during the winter.

Tips on winter driving are available at azdot.gov/KnowSnow.

Drivers can call 511 or visit ADOT’s Traveler Information Center at az511.gov for the latest highway conditions around the state. The website features camera images along state highways that give drivers a glimpse of weather conditions in various regions.

ADOT’s Twitter feed (@ArizonaDOT) and Facebook page (/AZDOT) are excellent sources of information and interaction on traffic conditions around the state.

For more information about ADOT, visit azdot.gov.