82 F. average high for June 28.
79 F. high on June 28, 2011.
+ 3.2 F. June temperatures are running over 3 F. warmer than average, to date.
7-10 days in a row above 90 in the metro area? It's looking that way...
Today: SW 5-10. Dew point: 63
Saturday: Light winds. Dew point: 62
Sunday: S/SE 8-15. Dew point: 68
|Low Max Temp:||221|
|High Min Temp:||649|
At-risk populations: Ozone is expected to near a level that is considered unhealthy for sensitive groups. Those sensitive to ozone include people with preexisting respiratory conditions, the elderly, children, and individuals who participate in outdoor activities requiring extended or heavy exertion. These individuals are encouraged to postpone or reduce vigorous outdoor activity, or schedule outdoor activity in the morning, when ozone levels are lower. Even persons who are otherwise healthy may experience health effects when ozone levels increase.
Health impacts: Elevated levels of ozone have been linked with respiratory health effects. Exposure to high levels of ozone may exacerbate preexisting health conditions. High ozone levels may make it more difficult to breathe deeply and vigorously, cause shortness of breath and breathing discomfort, and result in coughing and a sore or scratchy throat. If you experience these symptoms, contact your physician.
* map above from airnow.gov - click on this link for the latest numbers for the Twin Cities
Some facts from "Heat Waves and Climate Change":
- Since 1950 the number of heat waves worldwide has increased, and heat waves have become longer.
- In the past several years, the global area hit by extremely unusual hot temperatures has increased 50-fold.
- In the U.S., new record high temperatures now regularly outnumber new record lows by a ration of 2:1; in 2012, the ratio for the year (through June 26) stands at more than 9:1.
- In the U.S., the rise in heat-trapping gases in the atmosphere has increased the probability of record-breaking temperatures 15-fold.
- If we continue business as usual, the same summertime temperatures that ranked among the top 5% in 1950-1979 will occur at least 70% of the time by 2035-2064 in the U.S.
- By the end of this century, a once-every-20 year heat wave is projected to occur every other year.
Photo credit above: "A man paddles through flood waters from Tropical Storm Debby in downtown Live Oak, Fla. on Tuesday, June 26, 2012. The National Hurricane Center says Debby has weakened to a tropical depression as it continues to move across Florida, bringing flooding to many areas." (AP Photo/The Gainesville Sun, Matt Stamey)
Photo credit above: "Bob Burns holds his smartphone Wednesday, June 27, 2012 in Minnetonka, Minn. Millions of smartphone users wiil soon begin receiving text messages about severe weather from a sophisticated government system that can send a blanket warning to mobile devices in the path of a dangerous storm." (AP Photo/Jim Mone)
Newser, News.me and The Atavist are three news apps that the author, Christopher Mims, points out are leading the way in reimagining news for an always-on, instant-gratification world.
Paul's Conservation Minnesota Outlook for the Twin Cities and The Rest of the Free World:
Graphic credit above: "Graph shows the number of acres burned annually in U.S. wildfires." Credit: Karl Tate, LiveScience.com Contributor.
Photo credit above: "This aerial photo shows the destructive path of the Waldo Canyon fire in the Mountain Shadows subdivision area of Colorado Springs, Colo., Thursday, June 28, 2012. Colorado Springs officials said Thursday that hundreds of homes have been destroyed by the raging wildfire." (AP Photo/Denver Post, RJ Sangosti)
Photo credit above: "Scientists say Arctic sea ice has plummeted to its lowest levels ever this year." Photgraph: Steven J Kazlowski/Alamy
Photo credit above: Irene/CC BY-ND 2.0
Photo credit: "Mesospheric Clouds". I've heard of noctilucent clouds, but yesterday I discovered a new category of clouds - mesospheric clouds. Details: "In this image provided by NASA polar mesospheric clouds in the Northern Hemisphere are featured in this image photographed by an Expedition 31 crew member on the International Space Station June 13, 2012. In both the Northern and Southern Hemisphere, during their respective late spring and early summer seasons, polar mesospheric clouds are at the peak of their visibility. Visible from the ground during twilight, aircraft in flight, and the International Space Station, they typically appear as delicate shining threads against the darkness of space—hence their other name of noctilucent or "night-shining" clouds. Polar mesospheric clouds form between 76-85 kilometers above the Earth's surface, when there is sufficient water vapor at these high altitudes to freeze into ice crystals. The clouds are illuminated by the setting sun while the ground surface below is in darkness, lending them their night-shining properties. In addition to the illuminated tracery of polar mesospheric clouds trending across the center of the image, lower layers of the atmosphere are also illuminated; the lowest layer of the atmosphere, the stratosphere, is indicated by dim orange and red tones. While the exact cause of formation of polar mesospheric clouds is still debated—dust from meteors, global warming, and rocket exhaust have all been suggested as contributing factors—recent research suggests that changes in atmospheric gas composition or temperature has caused the clouds to become brighter over time." (AP Photo/NASA)