Latest news with #U.S.NationalWeatherService
Calgary Herald
5 days ago
- Climate
- Calgary Herald
What happens during a Red Flag Warning? Alberta Wildfire explains
The Red Flag Warning has been sounded by Alberta Wildfire. Article content It means conditions are ripe for the ignition and fast-moving spread of wildfires. The forest-fire experts use a sliding scale, first adopted by the U.S. National Weather Service, to determine how dry the conditions are in the forest areas, and how the winds could help fan the flames if that dry tinder is ignited. Basically, a score is calculated based on wind speed, heat and the lack of humidity. Article content Article content A sample document provided by Alberta Wildfire shows a hypothetical watch being created when the maximum daily temperatures is expected to hit 33 Celsius, the humidity is at 25 per cent or lower, and wind speeds are 10 km/h. Basically, when it is punishingly hot and dry, it doesn't take a lot of wind to trigger an alert. Article content Article content And, just like weather alerts, 'watch' is one level below 'warning.' Alberta Wildfire upgraded the Red Flag watch to a warning as of 11 a.m. Thursday in the Red Earth Creek, Swan Hills, Fort Chipewyan and Fort McMurray zones, all north of Edmonton. Article content 'We establish the watch based on the weather reports we receive every day,' said Derrick Forsythe, Wildfire Alberta's information officer. 'Of course, we can't tell how long it will last because it's weather dependent. When it comes to weather forecasting, when it's anything beyond three to five days, accuracy falls off a cliff.' Article content Article content As of 11 a.m. Thursday, Environment Canada had heat warnings in place for almost all of Alberta. Only the mountain parks and the southernmost reaches of the province were exempt. The warnings covered all of the northern boreal forest regions. Article content Article content Not as much as you might think. The government department has jurisdiction over the 'green' zones of the province, which basically cover the northern boreal forest and the wilds of the eastern Rocky Mountain slopes. In most Alberta counties, towns and cities, all it can do is provide advice. Alberta Wildfire has no power to issue a fire ban in Edmonton or Calgary. Article content 'Municipalities are the ones who put restrictions in place,' said Forsythe. 'We can give them assistance.'
The Star
09-05-2025
- Climate
- The Star
U.S. Southern California braces for rare heat wave
LOS ANGELES, May 9 (Xinhua) -- Southern California is bracing for a rare heat wave this weekend, with the U.S. National Weather Service (NWS) forecasting the highest temperatures of the year from Friday through Sunday. A heat advisory has been issued for large parts of the region, including the Los Angeles and Ventura County valleys, the Santa Monica Mountains, and the southern Salinas Valley. Beginning Friday, daytime high temperatures are expected to soar above 100 degrees Fahrenheit (38 degrees Celsius) in many areas, according to the latest forecasts. The NWS has urged residents to take precautions, including limiting outdoor activities, staying hydrated, and never leaving children or pets in parked vehicles.
CBS News
02-05-2025
- Climate
- CBS News
7.4 magnitude earthquake strikes off coast of Chile and Argentina, tsunami warning issued
A 7.4 magnitude earthquake struck off the southern coasts of Chile and Argentina on Friday, the United States Geological Survey said. Chilean authorities issued an evacuation alert for the entire coastal section of the Strait of Magellan, in the far south of the country. A tsunami warning was issued for coastal areas within 185 miles of the epicenter, with the U.S. National Weather Service's Pacific Tsunami Warning Center saying a series of hazardous waves was possible. "We call for evacuation of the coastline throughout the Magallanes region," Chile's President Gabriel Boric posted on social media after an alert from the SENAPRED emergency service, which also ordered evacuations in the nearby Antarctic areas. This is a developing story and will be updated.
Yahoo
09-04-2025
- Climate
- Yahoo
National Weather Service in Sacramento limits social media postings
( — The U.S. National Weather Service in Sacramento announced on Tuesday that they have limited monitoring and posting on social media platforms X and Facebook. Video Above: Tornado Watch vs. Tornado Warning In both posts, their caption read as follows, 'Going forward, this account will have limited monitoring and posting. For the latest real-time weather information and forecasts, please visit We always recommend having many ways to receive hazardous weather watches and warnings!' The ways to get warnings include: The internet Wireless emergency alerts and weather apps Local TV and radio Outdoor sirens NOAA weather radio Communicating with friends, family and coworkers BizX networking event returns to Sacramento This comes after the National Weather Service also announced Tuesday it will no longer be providing language translations of its products for non-English speakers. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
MTV Lebanon
29-03-2025
- Climate
- MTV Lebanon
Watch: Floodwaters Submerge Roads
Officials announced that at least four people lost their lives due to severe storms near the Texas-Mexico border amidst heavy rainfall and flooding. Local officials reported that Hidalgo, Willacy, and Cameron counties in Texas experienced one of the most intense storms that lasted for about 48 hours. Hidalgo County reported at least three deaths "linked to law enforcement efforts." The Associated Press quoted authorities in the Mexican state of Tamaulipas as saying that an 83-year-old man drowned in the city of Reynosa. ABC News reported that thunderstorms began on Wednesday, followed by heavy rains on Thursday afternoon and evening, with rainfall continuing until yesterday afternoon, Friday. The U.S. National Weather Service issued several emergency warnings about potential flash floods in some areas. In a statement, it added: "The situation is extremely dangerous." ABC News stated that water partially flooded the first floor of the South Texas Health System hospital in McAllen. It also noted that classes were suspended in several schools in the region. Watch the attached video for more.
