Page 2 - Pyrocumulus Clouds News Today : Breaking News, Live Updates & Top Stories | Vimarsana

This weekend. according to the national interagency fire center there are now 88 large fires in 13 states. together they've burned nearly 1.5 million acres. the bootleg fire in southern oregon is the biggest wildfire in the country. in 2 1/2 weeks it has scorched more than 400,000 acres. currently it is just over 40% contained. scientists say the bootleg fire is so intense that it's generating its own weather. it's creating updrafts of hot air, smoke and moisture called pyrocumulus clouds. they reach as high as 30,000 feet. sometimes the clouds collapse when the updraft stops, and this creates...

Currently it is just over 40% contained. scientists say the bootleg fire is so intense that it's generating its own weather. it's creating updrafts of hot air, smoke and moisture called pyrocumulus clouds. they reach as high as 30,000 feet. sometimes the clouds collapse when the updraft stops, and this creates strong, gusty winds in all directions that spreads fires farther. the clouds can also grow bigger and become pyrocumulonimbus clouds. these tornados can be thousands of feet in diameter with wind speeds over 60 miles per hour. the entire country is feeling the effects of these wildfires....

Just as the sun heats the air creating clouds, the fire's heat, smoke, and water vapor rise, sometimes creating thunderstorms with lightning, high winds, even tornadoes, spreading the fire. watch this time-lapse video of a pyrocumulus cloud forming in a fire over northern california. the pressure building up inside can be dangerous to firefighters on the ground. >> it falls apart, but it falls apart much more violently than a typical rainstorm. and winds come down right back towards the ground. the winds go every direction, and they could be 30, 40, 50 miles an hour, and that's happened severa...

Over the next couple of days. you see temperatures in the triple digits. no chances of rain. we are going to have the sun out. and we are going to have the flames still working their way across the west. temperatures are going to be in the triple digits for tuesday and wednesday for a lot of areas in the west. you look at the win. we really don't have this huge area of strong win. but what you have to remember is that the winds inside of these fires can be much, much stronger than the wind outside. so it creates almost like its own weather system where we have these huge pyrocumulus clouds. wi...

Much movement in the past few days. again, because you have those hot and dry conditions. what you are looking at. you are actually seeing those pyrocumulus clouds form and take off. it's a fire cloud as it's often called is a cloud performed because of that fire, sometimes even volcanos can produce the same thing the key this inc. to note here is that the forecast is allowing these fires they have in the mast and will continue in the future to allow them the perfect conditions to spread. we have already have low humidities. strong winds and localized spots. again those temperatures will remai...