8500 Homes Without Power Following Light ...
Emergency crews are working to restore power supply to about 8,500 people in the Blue Mountains.
Endeavour Energy responded to the outage after lightning strikes struck power lines earlier this afternoon.
Lightning interrupted power to homes and businesses in Springwood, Winmalee, Faulconbridge, Valley Heights, Linden, Hawkesbury Heights and Sun Valley.
“Emergency crews are currently patrolling the area to commence the restoration process,” an Endeavour Energy spokesman told The Daily Telegraph.
“Until these patrols are completed it is not possible to give an estimate of the time it will take to restore power supply to affected customers.”
He urged people who require power for medical equipment to check their battery supply and “consider acting on their back up plan”.
Endeavour Energy thanked residents for their patience as they attempt to restore power.
Source - News archive
Lightning sparks around 100 fires in Sou ...
Firefighters have responded to an estimated 100 lightning-caused fires across the Rogue River-Siskiyou National Forest in southwest Oregon since Sunday. As a result, the U.S. Forest Service is bringing in additional resources, according to a Monday afternoon news release. Fires are also burning in other parts of the state.
The Hendrix fire, which had burned an estimated 170 acres southwest of Ashland as of 3 p.m. Monday, was started by lightning Sunday, according to information from U.S. Forest Service's Facebook page.
Nearby, fires in the Wagner Complex also caused by lightning are burning more than 200 acres.
The Gravel fire, burning 100 acres just 8 miles northwest of Prospect, Oregon, was caused by lightning Sunday, according to Northwest Interagency Coordination Center. The fire was 0 percent contained Monday.
Sunday lightning also started eight new fires in Crater Lake National Park, all a half acre or less in size. The park remains open and visitors are not at risk, according to a Monday evening news release from the park.
Also in southwest Oregon, the Canyon Creek fire is burning about four miles south of Canyonville and is estimated to be around eight acres, according to a news release from Douglas Forest Protective Association. Other small fires are also burning in the southwest region.
The Collawash fire is a 25-acre wildfire discovered Sunday on the Clackamas River Ranger District of the Mt. Hood National Forest. Crews are making progress in building a line around the fire, according to a news release. Fire danger is high across Mt. Hood National Forest, with high temperatures and low humidity providing fires the possibility to grow fast. No closures are in place but visitors should be cautious when driving in the area.
East of Salem, a fire is burning around 27 acres in the southeast corner of Silver Falls State Park. The Silver Creek fire is estimated to be 35 percent contained, according to a Monday afternoon news release. Steep slopes, thick undergrowth and large snags pose challenges for firefighters in the area. No injuries or facility damage have been reported. Smoke was reported Thursday evening and a fire attack was launched Friday, according to the release.
In eastern Oregon, the Currey Canyon fire in Malheur County is 50 percent contained with one residence threatened as of Monday morning. It's burned 3,100 acres so far. Firefighters expect to have it fully contained by Friday.
In Wheeler County, firefighters have contained the Solitude fire, which started July 8 and burned 708 acres near Spray, Oregon.
Source - News archive
Why is lightning white?
Static charges form in a storm composed of ice crystals and liquid water drops. Turbulent winds inside the storm cause particles to rub against one another, causing electrons to be stripped off, making the particles either negatively or positively charged.
The charges get grouped in the cloud, often negatively charged near the bottom of the cloud and positively charged up high. This is an electric field and because air is a good insulator, the electric field becomes incredibly strong. Eventually a lightning bolt happens and the flow of electrons neutralizes the electric field.
This flow of electrons through the lightning bolt creates a very hot plasma, as hot as 50,000 degrees, that emits a spectrum of electromagnetic energy. Some of this radiation is in the form of radio waves and gamma rays.
Instruments that measure these electromagnetic waves allow us to detect lightning bolts that are very far away. Visible light is also part of the spectrum of energy.
At these temperatures, laws of physics state that most of the visible light will be at a wavelength perceived as the color blue, although all wavelengths will be emitted.
The notion of color applies to our perception of what we see, not to the light itself. When we talk about the color of light, we really mean the color we sense with our eyes and then interpret with our mind.
Thus, while the peak energy is at blue wavelengths, the intensity of all the colors tends to saturate our eyes, leading us to perceive the color white – which includes all wavelengths in the visible spectrum.
Over the last 20 years scientists have discovered that lightning also shoots upward out of the top of thunderstorms into the upper atmosphere. These lightning types have distinctive colors, including red sprites and blue jets.
Source - Did you know archive
In the midst of a bizarre winter, Montrealers were treated to a rare sight on Monday night — a winter thunderstorm. Montrealers Jolyane Limoges and Pierre-Marc Doucet managed to capture the phenomenon during a snow squall, and post it on YouTube. The phenomenon is known as thundersnow — it's like a normal thunderstorm, but with snow as the primary form of precipitation. Thundersnow events happen when a mass of cold air settles on top of warm air, coupled with moist air closer to the ground.
Source - Did you know archive
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