When could northern lights possibly be visible in Nebraska, Iowa this weekend?
The Space Weather Prediction Center issued a severe geomagnetic storm watch for June 1 and June 2, which means it could be possible for Nebraskans to see the northern lights.
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CBS News
2 hours ago
- CBS News
Air quality alert in effect for Philadelphia region Wednesday as temps heat up. Here's the weather forecast.
Good Wednesday, everyone — outside today, you will likely notice the heat cranking up in the Philadelphia region. Both Wednesday and Thursday will be very warm and humid, with highs in the upper 80s and low 90s, with lows in the mid-60s. Perfect for those who love that summer sizzle. Friday brings a slight cooldown, with highs in the mid-80s and increasing clouds as the day progresses. Saturday, however, turns a bit unsettled — expect a mix of clouds and sun, a drop in temperatures and a chance of showers and thunderstorms. It's a good day to have an indoor backup plan or keep an eye on the radar if you're heading out. Sunday looks like a winner, with less humidity and plenty of sunshine, highs in the low 80s, and a refreshing breeze. CBS News Philadelphia Philadelphia's smoke history While this week's smoke is causing an elevated haze in the sky, it's nothing like what we experienced a couple of years ago. An orange air quality alert will be in effect for most of the Philadelphia region on Wednesday. The code orange alert means that air pollution concentrations within the Delaware Valley will be unhealthy for sensitive groups. CBS News Philadelphia In June 2023, Philadelphia experienced one of its most extreme air quality events in decades, as smoke from Canadian wildfires blanketed the city. The haze was so thick that it reduced visibility to less than a mile and turned the sky an orange-red. On June 8, the Air Quality Index (AQI) hit 425, marking the worst air quality in the city since 1999 and making it the most polluted major city in the world that day. CBS News Philadelphia The smoke, originating from wildfires in Quebec, was carried south, affecting large portions of the East Coast. Philadelphia's air quality was classified as "hazardous," prompting health advisories for residents to stay indoors, especially those with respiratory conditions. The haze even led to the postponement of a Phillies game — the first "smoke out" in the team's 140-year history. Here's your 7-day forecast: CBS News Philadelphia Wednesday: Heating up. High 88. Low 60. Thursday: Heat is on! High 90. Low 64. Friday: Few more clouds. High 88. Low 65. Saturday: P.m. t-storm. High of 81, Low of 66. Sunday: Mostly sunny. High 82, Low 64. Monday: Showers. High 79. Low 64. Tuesday: Chance showers. High 82. Low 62. NEXT Weather Radars Hourly Forecast
CBS News
2 hours ago
- CBS News
What does it mean to "contain" a wildfire?
Several weeks of fiery destruction have changed the landscape of Minnesota's northland. The three main wildfires — Camp House, Jenkins Creek and Munger Shaw — are all now nearly 100% contained after burning more than 29,421 acres as of June 3, according to the U.S. Forest Service. Keeping that number from growing requires hundreds of miles of effort on the ground and in the sky. "We're gonna have to continue to get rain in a timely manner in order to keep them in place and not going anywhere," said William Glesener, wildfire operations supervisor with the Minnesota Department of Natural Resources. What does it mean to contain a wildfire? Glesener explained with an analogy related to a campfire. "If you have a campfire that doesn't have a ring around it, doesn't have any stones around it or whatever, it's kind of wild, it's out in the open, it could go anywhere," Glesener said. But once you build or create a border around the campfire it becomes contained. Just multiply that on a massive scale with far less control and you have what's happening up north. What methods are deployed to contain a fire? "Oftentimes, depending upon where you're at in the country, different methods will be used," he said. Aircraft dropping water or fire retardant has been helpful for Minnesota's wildfires, along with crews on the ground doing the same. Heavy machinery like bulldozers carve out containment lines by removing fuel. Rivers and roads act as natural or manmade barriers. Crews also fight fire with fire. "If, for example, you are able to burn out and the fuel is all consumed in an area, you might not have any more fuel to be consumed, so that could actually be a containment line," he said. To measure containment, officials use percentages instead of miles covered. The measurement describes "how much of a wildfire's perimeter is surrounded by a control line," according to the Western Fire Chiefs Association. "If a wildfire is 25% contained, control lines around 25% of its perimeter have been established," it further states. "It's important to remember that just because a fire is contained doesn't mean it has stopped burning," Glesener said. "Hotspots remain and new fires can start due to weather conditions and fuel in the fire perimeter. The caveat that we have there is how far is that heat inside the line." Crews will have to determine if hotspots need water to keep new fires from reaching the containment lines. Beyond that, they'll wait for several rounds of rain to finish the job. "Basically, the fires we have in the Arrowhead, they're going to be monitored all summer long," he said. They'll keep an eye on the fire from the sky using planes, drones and cameras with heat-detecting technology. Ground crews will also carefully trek through wildfire perimeter to get a lay of the land up close. The Horse River Fire is the latest challenge up north. It has burned only 13 acres in the Boundary Waters Canoe Area as of June 3, but it has zero percent containment.
Bloomberg
4 hours ago
- Bloomberg
New York's Poor Air Quality Set to Worsen on Canada's Fire Smoke
Wildfire smoke from a series of blazes burning in the Canadian prairie has drifted across New York, contributing to a series of air quality alerts that threaten breathing problems for children and older adults. Environmental agencies in New York, New Jersey, Pennsylvania and Connecticut issued safety advisories starting at 11 a.m. local time on Wednesday that extend into the late evening. The smoke is visible across the region as a high haze, and has already blanketed the US Midwest, including Chicago and Minneapolis.
