Showing posts with label storms. Show all posts
Showing posts with label storms. Show all posts

Friday, June 7, 2013

An Incredible Image from Last Week's Oklahoma Tornadoes


Via

Glad I live in SOUTH Texas.

Friday, June 8, 2012

56 Years of Tornado Tracks


CTE!                                                                                   Via / Source: John Nelson

Please do go visit Mr. Nelson's site - there's a lot of good stuff there!

Tuesday, May 8, 2012

Amazing Austin, TX Lightning Photo

Sunday night, May 6, 2012 - Looking south over the Hwy 360 (Pennybacker) bridge, and overlooking Austin Country Club.

Via / Image Source: Marco Gutierrez                                                     Click to enlarge!

Google Maps location..

Tuesday, May 31, 2011

Before & After Bird's Eye Views Of Joplin, MO



Before and after photos of Joplin, Mo., have been floating around the Internet since the tornado swept through on [a week ago] Sunday — and one of the more striking comparisons is attributed to Aaron Fuhrman. We reached out to him and he shared several more photos, as well as his story. Combined with screen grabs from Google street view, these interactive images show just how devastating the damage has been.

Click the banner image above to see the before & after images, and be sure to click the "as seen from the street" link from that page, as well as the first link in the text above.

Source / Via - (NSFW)

Sunday, May 8, 2011

Recent Aerial Views Of Tornado Paths

Click them to get a better view..


Via - (NSFW)


Via


Via

Tuesday, June 1, 2010

Lightning Climatology


Click image to enlarge..

Where does lightning usually strike?

Lightning strikes the ground somewhere in the U.S. nearly every day of the year. Thunderstorms and lightning occur most commonly in moist warm climates. Data from the National Lightning Detection Network shows that over the continental U.S. an average of 20,000,000 cloud-to-ground flashes occur every year. Around the world, lightning strikes the ground about 100 times each second, or 8 million times a day. Ground-based systems don't tell us anything about lightning over the oceans, although a few science satellites have lightning detectors on them now. There are roughly 5 to 10 times as many cloud flashes as there are to cloud-to-ground flashes, so the total amount of lightning is quite a bit higher.

These conditions most often occur in summer. In general, the US mainland has a decreasing amount of lightning toward the northwest. Over the entire year, the highest frequency of cloud-to-ground lightning is in Florida between Tampa and Orlando. This is due to the presence, on many days during the year, of a large moisture content in the atmosphere at low levels (below 5,000 feet), as well as high surface temperatures that produce strong sea breezes along the Florida coasts. The western mountains of the US also produce strong upward motions and contribute to frequent cloud-to-ground lightning. There are also high frequencies along the Gulf of Mexico coast westward to Texas, the Atlantic coast in the southeast US, and inland from the Gulf. Regions along the Pacific west coast have the least cloud-to-ground lightning.

How often do positive cloud-to-ground strikes occur?

Worldwide, over an entire year, positive lightning strikes average 4-5%. Most storms start with mainly negative flashes, then have a higher ration of positives toward the end of their life cycle. In tornadoes and supercells, large numbers of positive flashes are common, and they appear to signal severe events. Positive ground flashes are often associated with the production of large hail.

Source


Source