Weather Whiplash
gregladen | January 25, 2014Paul Douglas from Weather Nation on weather whiplash, the latest on the Polar Vortex, Sochi weather problems. And, the 30-30-30 rule, which is good to know.
Published on Jan 24, 2014
"It seems like the weather, increasingly, is getting stuck." Meteorologist Paul Douglas explains this weather pattern that seems to be stuck in a rut. Swells, drought and a polar vortex! Learn how it is impacting everywhere from Hawaii/Alaska all the way to Europe. The Winter Olympics may feel more like the Summer Olympics!
milhayser | January 20, 2014The anti-scientific M.O. of some political conservatives was in full swing during the 'polar vortex,' as frigid weather brought south from the Arctic led many commentators to scoff, "look how cold it is, can you believe anyone thinks the Earth is getting warmer?" Coby Beck adds some perspective from climate historian Christopher C. Burt on A Few Things Ill-Considered, writing "cold snaps like this past week’s used to occur every couple of years in the 1800′s," and more like every 5-10 years in the 1900's. Meanwhile the last time it got so cold in the U.S. was twenty years ago. Coby says "what…
gregladen | January 7, 2014Extreme weather events of all kinds seem to be more common now than they were then. By now I mean the last five to ten years, approximately, and by then I mean ... well, before that. This is because of global warming.
The current Colding caused by a wandering Polar Vortex (which I've heard Rush Limbaugh has declared to be a liberal plot ... thanks Obama!) is probably a result of changes in the nature and configuration of the jet streams and related air masses, as discussed here. Warming caused by the release of fossil carbon, mainly as Carbon Dioxide, has affected the Arctic more than most…
gregladen | December 14, 2013The best way to not look like an idiot is to shut up. Works every time. Why just a few minutes ago I said something really stupid because I confused UPS and USPS. Should have just kept my mouth shut, but I didn't.
This time of year a lot of people start sounding like idiots, quite possibly because they are idiots (but see below for alternative explanations), when it comes to global warming. For example, someone who may or may not be a "global warming denier" (i.e. a person who does not believe in physics) sent me, out of the blue, this string of tweets:
First he tells me that the ice…
gregladen | October 5, 2013Over the last 48 hours or so a weather system slowly moved across the southern Dakotas, Nebraska, Iowa, and Minnesota. It was in part shaped and positioned by the jet stream, and it was so slow moving because of the unusually curved nature of the jet stream. This is very much like what happened a few weeks ago in Colorado, but with less of an effect. Nonetheless, there was a damage and injury causing tornado in Nebraska and Iowa, and nine inches of rain in Winona, where there was some very inconvenient flooding. The huge multi-foot snow storm in the Dakotas was part of this system. People…
gregladen | September 28, 2013We call it "weather whiplash." This is not just meteorologists being funny. It is a phenomenon that perhaps has always been with us to some degree, but that has recently become much more common, apparently. If you were under the impression that there is a lot of strange weather going on out there, you may be right, and weather whiplash may be the phenomenon you've noticed. Importantly, there is good reason to believe that weather whiplash is the result of anthropogenic global warming. In other words, it's your fault, so please do pay attention.
Weather patterns tend to move…
gregladen | September 19, 2013There is a strong argument to be made that the recent flooding in Colorado is the result of global warming. Here are three things one could say about the flooding. Think of these as alternative hypotheses to explain that event:
1) Weather has extremes. Sometimes, instead of raining just a bit, it rains a hella lot and you get a big giant flood.
2) Weather has extremes etc. etc. but global warming tends to make some of the extremes more extremes, so instead of getting just a big flood, you get a big giant flood.
3) The storm that brought well over a foot of rain to one mountainous area was…
gregladen | June 4, 2013Global Warming is the increase in the Earth's temperature owing to the greenhouse effects of the release of CO2 and other gasses into the atmosphere, mainly by humans burning fossil fuel, but also by the release of Methane from oil wells and melting of Arctic permafrost, natural gas from leaky pipes, and so on. This increase in temperature occurs in both the atmosphere and the oceans, as well as the land surface itself. During some periods of time most of the increase seems to happen in the atmosphere, while during other times it seems to occur more in the oceans. (As an aside: when you…
gregladen | June 3, 2013I think most people will agree that in North America (and other places) we've been having some bad weather. Some of the weather is not necessarily intrinsically bad ... so what if it is a little cooler or a little warmer than you expect. Aridity? Deserts are nice! Extra rainfall? Great for the plants. But actually that sort of thing has its down side since important systems like agriculture, the water supply, and Spring Break work reasonably well because of expectations that might not be met if the weather is different.
Other weather is intrinsically bad. I'd mention tornadoes but at the…
gregladen | August 4, 2012I'd like to give you a very small selection of references and discussions about the link between global warming and drought.
Global warming probably has two major effects. First, more moisture gets into the atmosphere because warmer air passing over the oceans can take in more water. This can cause more rain and possibly more severe storms and flooding. But the atmospheric system also changes in another way. The hydraulic cycle, as it is called, intensified in both directions, wet and dry. If you live on the East Coast of the US and you move to where I live in the upper Midwest, you'll…