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I have four recent hiking guidebooks out: 100 Classic Hikes: Northern California<\/em><\/a>, fourth edition,\u00a0 Day Hiking: Mount Shasta, Lassen & Trinity Alps Regions<\/em><\/a>, Hike the Parks: Redwood National & State Parks<\/a>, <\/em>and Urban Trails Sacramento<\/em><\/a>. Wildfire smoke definitely hindered my research and made me alter my hiking schedule many times. I need clear skies both so I can take good panoramic pictures and also so I can breathe clean air while I’m humping up the trails. I also do a lot of dispersed camping in California (see my book Camp for Free: Dispersed Camping & Boondocking on America’s Public Lands<\/em><\/a>), so smoke conditions are important for that also.<\/p>\n Includes trailhead directions and detailed maps and trail descriptions<\/p>\n Buy it:<\/strong> on Amazon<\/a> | on Bookshop.org<\/a><\/p>\n Often available at Barnes & Noble, REI, and other quality bookstores<\/strong> and outdoor stores <\/strong>(call first!)<\/p>\n<\/div>\n I describe many ways to find out what you need to know. Remember that Google is your friend when it comes to finding specific websites for where you are. Search for terms like: smoke conditions, air quality, and the name of the region where you want to explore.<\/p>\n Some of these sites also provide fire information.<\/p>\n Purple Air<\/a> makes inexpensive air-quality sensors that give very frequent AQI updates. Most of California is well-covered. See the map for the upper portion of Northern California here<\/a>. I often look at Purple Air air-quality data and integrate that with predicted winds to help get an idea of where smoke and clearer air are moving. Note that Purple Air does not have an app.<\/p>\n Iqair<\/a> shows many sensors in California, and it also shows current winds, which help you predict where the smoke is moving.<\/p>\n Here’s the surface-smoke forecast from Redding north<\/a> into Oregon and east into Nevada.<\/p>\n NOAA\/National Weather Service has a webpage<\/a> that integrates data to show you smoke concentrations for anywhere in the United States.<\/p>\n Use the U.S. Forest Service BlueSky tool<\/a> to get predictions of future smoke movement. Scroll down and click the map for the entire western United States, and then zoom in.<\/p>\n Track current smoke locations using the GOES-West satellite<\/a>. Make sure you switch from the GOES-East satellite to the GOES-west satellite using the menu on the left.<\/p>\n See a variety of current webcams from across California at AlertWildfire<\/a>.<\/p>\n AirNow.Gov<\/a>: Current Air Quality AQI Measurements and AQI Forecasts. For California and the entire United States, see AirNow.gov<\/a>. It has air quality numbers with color codes for health risks, and it provides forecasts air quality forecasts which help you choose where to hike.<\/p>\n California Smoke Info<\/a> gives info for specific fires. It aggregates data from several government agencies.<\/p>\n Keep in mind that a good weather report can help you predict what will happen to smoke in the future. For example, I do a lot of hiking in the Trinity Alps and Mount Shasta area of far northern California. If fires are mostly to the south and north of this area, and the area will see a prolonged period of winds from the west, I can be fairly confident that the sky will be mostly clear since the winds will bring clean air from the Pacific Ocean. Often the detailed forecast discussion will have specific information about smoke conditions.<\/p>\n National Weather Service<\/a>. This is my favorite source for weather predictions and data, including wind direction and wind speed.<\/strong><\/p>\n Weather Underground<\/a>. Has 10-day long-range forecasts, but always take them with a grain of salt. The further out a weather forecast, the less likely it is to be correct.<\/p>\n The Weather Channel<\/a>. Has 10-15 day long-range forecasts, but same concerns as just mentioned above.<\/p>\n Ventusky shows you current wind patterns<\/a> for anywhere in the world.<\/p>\n For excellent discussion of short-term, medium-term, and long-term weather trends, go to the California Weather and Climate blog<\/a>.<\/p>\n Watch Duty<\/a> is a fantastic app for tracking details of wildfires in the United States: Android app<\/a>, iOS app<\/a>. It also has info on wind speed and direction, and air quality.<\/p>\n Inciweb<\/a>. Enter the state in the upper right corner.<\/p>\n Calfire<\/a>. Many states have similar agencies.<\/p>\n I find that official Facebook pages for national forests, plus pages from other relevant official entities are often the best way to get the most up-to-date information on wildfires. In addition, unofficial Facebook groups often have good info, but also some info that can be wrong or is unverified.<\/p>\n Search Facebook for relevant pages and groups, and also look to see which pages and groups are shared by your friends.<\/p>\n There are several apps out there; just be aware that they frequently will not be up-to-the-minute accurate. The Wildfire Info app by David Gross (Android<\/a>, Apple<\/a>) was recommended by a California firefighter. It allows you to switch between Calfire and Inciweb.<\/p>\n The premium version of the Gaia trail app<\/a> also has information on wildfires and is updated daily.<\/p>\n Buy it on Amazon<\/a> Ask your friends.<\/strong> If you’re on Facebook, ask your friends and see what you can find out. Of course, you could be really radical and actually call someone.<\/p>\n Twitter\/X.<\/strong> Major fires often have a hashtag with frequent updates on Twitter\/X, including satellite photos showing smoke plumes and information about road closures.<\/p>\n Ask the government agency.<\/strong> You can almost always get information from someone at a government agency if you call during business hours Monday through Friday. Some are even open on weekends, especially during the summer season.<\/p>\n Web cams.<\/strong> Do a Google search for traffic cams near where you want to hike, which shows you conditions along major roads, and also search for specific cams on where you want to go, if it’s a major destination. For example, Lassen Volcanic National Park has cams<\/a> that give near real-time pictures, as does Yosemite National Park<\/a>.<\/p>\n Many factors determine whether any particular place is smoky at any given moment due to wildfires:<\/p>\n This is crucial, of course. In the worst of the wildfire season, usually in August and September, there can be a dozen or more wildfires burning within a couple hundred miles of where you want to hike, and they can range from relatively small blazes to major conflagrations that stretch across 50 square miles or more.<\/p>\n This is another very important factor. If you are directly downwind of a fire, you’re going to get the smoke from it.<\/p>\n These can affect how well air mixes with elevation. For example, an inversion can trap smoke in valleys, leaving higher elevations relatively clear.<\/p>\n I used to live in Ashland in southern Oregon’s Rogue Valley, which is surrounded by peaks stretching up to 8,000 feet, especially in the southern end of the valley where Ashland is located. Unfortunately, smoke frequently gets trapped and can stay for days, especially when the winds are light. However, there are times when a slight shift in the wind brings clear air while thick haze coats the other side of the valley, and sometimes just the opposite happens.<\/p>\n Keep this in mind! Just because Lake Tahoe has good visibility at 9 a.m. when you leave San Francisco, it can have visibility of just a few miles or less by the time you actually get to a trailhead. Use your smartphone or tablet to keep track of the latest info on wildfire smoke.<\/p>\n Here’s a picture I took of the northern Trinity Alps in July of 2018, from below Smith Lake near the Russian Wilderness. Southerly winds had blown smoke from large wildfires near Clear Lake north, creating lots of haze. But the next morning a wind shift had blown it all away.<\/p>\n When much of the West is aflame, smoke from the different wildfires gets pushed 200 miles in one direction, and then a day later it can get pushed 100 miles in yet another direction, leading to increased smoke in just about every location.<\/p>\n If you are in the backwoods, you need to follow safe practices for campfires. My post on California campfire permits for hikers and backpackers<\/a> has info on safety practices, plus info how to obtain a campfire permit. (And also see my post about practical steps to reduce wildfire severity and damage<\/a>)<\/p>\n I urge you to forego all campfires, even if they are allowed.<\/strong><\/p>\n Let’s hope it never happens, but if it does you need to take proper action to protect yourself and your hiking companions See my post on how hikers can survive a wildfire<\/a>.<\/p>\n Wildfire smoke is, unfortunately, a common occurrence in summer in California and throughout the western United States. That’s why I often take a mask with me when I hike (and when I’m just walking around town if the smoke’s really bad).<\/p>\n There are many kinds of masks of varying quality and price. The one I use:<\/p>\n Find a variety of N95 particulate respirator masks on Amazon<\/a>.<\/p>\n And here’s the specific one I use<\/a>; it’s inexpensive and works fairly well.<\/p>\n Are there other good sources of information on smoke and air quality that I missed?<\/strong> Let me know in the comments!<\/p>\n Includes trailhead directions and detailed maps and trail descriptions<\/p>\n Buy it:<\/strong> on Amazon<\/a> | on Bookshop.org<\/a>The Top 100 Day Hikes and Backpacking Trips in Northern California<\/h4>\n
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The all-color fourth edition features the best trails in:<\/strong><\/p>\n\n
Finding California Smoke\/Air Quality Information<\/h2>\n
Websites Specifically About Smoke Conditions<\/h3>\n
California Weather Reports with Wind and Smoke Conditions<\/h3>\n
National Weather Service<\/h4>\n
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Weather Underground<\/h4>\n
The Weather Channel<\/h4>\n
Ventusky<\/h4>\n
California Fire Information and Maps<\/h3>\n
Facebook: Great Resource for Info on California Wildfires and Smoke Conditions<\/h3>\n
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California Wildfire Apps<\/h3>\n
Camp for Free in California National Forests<\/h4>\n
![\"Camp](\"https:\/\/northerncaliforniahikingtrails.com\/blog\/wp-content\/uploads\/2020\/06\/dispersed-camping-boondocking-camp-free-300.jpg\")
California’s national forests and BLM lands have thousands of miles of dirt roads with lots of spots for dispersed camping (boondocking).<\/strong> My book provides all the info you need to get started (but is not a guide to specific sites):<\/p>\n\n
\nBuy it on Apple, Kobo, and Nook<\/a><\/p>\n<\/div>\nCalifornia Wildfires: Other Good Sources of Information<\/h2>\n
California Wildfire Smoke\/Smokiness Factors<\/h2>\n
Location and size of wildfires<\/h3>\n
Wind direction<\/h3>\n
Atmospheric conditions<\/h3>\n
Local geographic features<\/h3>\n
Wildfire and smoke conditions can change quickly<\/h3>\n
![\"Wildfire](\"https:\/\/northerncaliforniahikingtrails.com\/blog\/wp-content\/uploads\/2018\/07\/wildfire-smoke-california-trinity-alps-web.jpg\")
Sometimes there’s smoke nearly everywhere: bad news for hikers<\/h3>\n
![\"Smoky](\"https:\/\/northerncaliforniahikingtrails.com\/blog\/wp-content\/uploads\/2018\/07\/wildfire-california-foothills.jpg\")
Make Sure Your California Campfire Is Safe and Legal!<\/h2>\n
![\"Get](\"https:\/\/northerncaliforniahikingtrails.com\/blog\/wp-content\/uploads\/2018\/03\/california-campfire-permits.png\")
And If a Wildfire Is Near You?<\/h2>\n
Consider Taking a Mask to Protect Against Wildfire Smoke<\/h2>\n
N95 Particulate Respirator Mask<\/h3>\n
![\"An](\"https:\/\/northerncaliforniahikingtrails.com\/blog\/wp-content\/uploads\/2018\/07\/N95-particulate-respirator-mask.jpg\")
These are usually available at hardware stores, department stores, and other retailers near you. However, during fire season, they can occasionally be hard to find.<\/p>\nShare Your Sources!<\/h2>\n
Best Day Hiking Trails in Upper California<\/h4>\n
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<\/a>My<\/strong> compact guidebook has the 125 best day hikes:
\n<\/strong><\/p>\n\n
\nOften available at bookstores<\/strong> and outdoor stores <\/strong>(call first!)<\/p>\n<\/div>\nSubscribe to the Northern California Hiking Trails Blog<\/h2>\n