Two Volcanoes EruptingAugust 29th, 2014 at 2:02 am by Bill Steffen under Bill's Blog, News, Weather
Click on the image to enlarge. This graphic is from the U.S. Geological Survey and shows the structure of a volcano. We have two additional volcanic eruptions. Check out the Rabaul Caldera eruption on Mount Tavurvur in Papua New Guinea. News reports say the smoke and ash plume from Rabaul has gone 11.2 miles above the ground! Some airline flights have been diverted. Volcanoes (especially in the tropics) can on rare occasion cool the Earth by blasting enough sulfur dioxide into the upper atmosphere. That’s what the volcanic explosion of Mt. Pinatubo in the Philippines did in 1991-92. Check out the Eruption Image Gallery at the Darwin Volcanic Ash Advisory Centre. We also have a volcanic eruption in Iceland. The Bardarbunga Volcano has a fissure over half a mile long. A Code Red aviation travel warning with a no-fly zone was issued Friday by the U.K. Met Office. Here’s a map of Iceland’s volcanoes. You might remember the the eruption of Mt. Eyjafjallajökull in 2010. Check out this pic. of that eruption! The windy, rainy remains of Hurricane Cristobal are going to pass over Iceland. Also, a magnitude 5.6 earthquake has struck just off the coast of Greece. And…intense low pressure will form over Hudson Bay. Tornado yesterday at Mayfield SD. Here’s snow falling on Pike’s Peak in Colorado. Surf’s up in California! Here’s the latest severe weather outlooks from SPC. I’ll update in the morning…too tired to stay up for the European model. The overnight NAM (caribou) still looks too low with rainfall totals. The GFS-plot gives G.R. 1.07″ of rain between now and next Tues. AM and that sounds better. Temperatures slightly warmer than average for the next week to 10 days (normal high is now 79° – down 4° from the peak in mid-July.