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Weather Questions tagged “folklore”(remove tag filter)
Question: Is it true that if it thunders in the winter two weeks later we will get snow? — Jessica
Answer: The folklore on that is usually started that it will snow within ten days after a winter thunderstorm, but the "rule of thumb" varies depending on who's telling it.
There is some physical reasoning behind those old "tales," although they certainly don't verify in every case, and even when they do the snow may take the form of unmeasurable flurries. Still, the same large-scale pressure patterns that bring warm, unstable air far enough north for winter thunderstorms here are also those that move cold air most deeply toward the south. Well-timed disturbances might then produce some snow within that ten-day or so window of time.
The patterns in question involve sharp mid-level pressure troughs and ridges that drive airmasses strongly toward the north and south. This is known as "meridional flow," and tends to produce stormy weather involving large temperature swings. This can be contrasted to "zonal flow," in which airmass transport is mostly west to east, temperatures tend to be moderate, and disturbances are often weak, making both thunderstorms and snowfall less likely for our area.
Dec. 27, 2014 | Tags: folklore, snow, thunderstorms
Question: I read that we will have no sunshine at all 21, 22, 23 and 24 December. Is that true? — Alyssa
Answer: We're guessing you ran across a message that was going around the internet not long ago saying something like "NASA Confirms Earth Will Experience 6 Days of Total Darkness in December," and that a giant solar storm would result in sunlight being blocked from earth for 216 consecutive hours. This appears to have originated with a satirical web site, and was possibly an updated version of some of the messages that accompanied the "Mayan Calendar" scare (and resulting non-event) of 2012. Like that one, this newer one is a hoax and can be safely ignored.
Dec. 10, 2014 | Tags: folklore
Question: Why did national media call the storm on November 26th a "nor'easter," when the winds were coming from the south? All the definitions describe a nor'easter as a storm with winds coming FROM the northeast. I checked online and weather casters on the national news channels were calling this a "nor'easter," but the map they showed demonstrated that the winds were moving from south to north up the Atlantic coastline. I'm confused why they would call this storm that. — Skeeter, Wake County
Answer: We went back and reviewed surface maps through that day, which can be found in an archive at www.hpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php. These maps clearly show a deep low pressure system moving up the east coast of the U.S. that fits the common description of a nor'easter, which is a low pressure center that typically tracks toward the northeast or north-northeast, staying along or just offshore of the central and northern coast of the country. This track results in surface winds at many locations along the coast that swing from initially east to northeast to north and then to northwest and west as the low passes by. Often some of the strongest winds occur from the northeast as the low is moving toward a given location from the south, and that seems to be the origin of the term nor'easter for these storms. They are often producers of heavy precipitation, including wintry forms in the northern and western reaches of the circulation. We noticed that the center of this storm did cut slightly inland across eastern-most NC, so that for a short time along parts of our coast and the Outer Banks winds were from the south, but for northern parts of our coast, and the remaining coastline from Virginia up through Maine, the progression of wind directions followed the typical sequence for a nor'easter that we mentioned above.
Dec. 3, 2014 | Tags: cool sites, folklore, general meteorology
Question: My grandparents have told me on old wives tale, that if you see a ring around the moon that there could be major change in the weather within 10 days? Is there any truth to this? — Benjamin
Answer: Some variation of that is a common perception, and it is true that sometimes the high sheets of cirrus cloud cover that often produce noticeable halos do form in advance of storm systems that will later result in precipitation or sizable temperature changes. However, it is also quite common that the appearance of a halo is NOT followed by any associated rain or snow, but instead the clouds simply move on and yield to fair skies again. Halos of this type are quite common, and may form on as many as 60-90 days per year in our area. However, most of us miss many of these because they occur while we're indoors, they are a rather faint or incomplete version of the halo, they occur when other clouds at lower altitudes block the view, or they form in the daytime around the sun and go unnoticed in the bright light of day.
Nov. 16, 2014 | Tags: atmospheric optics, folklore
Question: Why was the snowfall in our western mountains recently called a "winter storm" when it is still fall? "Winter" does not officially start until December. — Bonnie Brock
Answer: You make a reasonable point, but the reference to a winter storm is traditionally more keyed to the organization and effects of the system, and the kinds of precipitation it produces, more so than the date it occurs on. Since the occurrence of snow, sleet or freezing rain is often referred to as "wintry" weather, maybe a storm outside the confines of the technical winter season would be better referred to as a "wintry storm." It's not a perfect analogy by any means, but we likewise would call an Atlantic hurricane a hurricane, even if it happens before June 1st or after November 30th.
Nov. 12, 2014 | Tags: folklore, winter weather
Question: Has anyone kept records on wooly worm predictions for cold/snowy winters? — Elizabeth
Answer: There isn't really any basis for connecting the order and color of bands in the wooly worm to a weekly rundown of future weather conditions through the winter, but it does make for some fun folklore and helps support a big festival in Banner Elk. Just for fun, the State Climate Office of NC did go through three years of predictions from the contest-winning worm a couple of years ago, and found the accuracy of the forecasts about the same as a coin flip. They did make a good point that the color pattern of the worms may bear some relation to the conditions of the previous winter. You can read their article at nc-climate.ncsu.edu/climateblog?id=3. The Climate Prediction Center winter outlook for western NC gives an equal chance of above, near or below normal conditions for both temperature and precipitation, indicating that there are few strong signals to go on in making a confident projection for how this winter will turn out there.
Oct. 24, 2014 | Tags: cool sites, folklore, winter weather
Question: I have seen online about snow coming early. Maybe as early as the end of September and beginning of October. I was just wondering if this is true. I am due to have my baby November 2nd so I would like to be prepared as much as possible. — Lauren
Answer: Congratulations on the impending arrival. We've received a number of questions along these lines, and as near as we can tell it all traces back to a satirical article posted on a website called the Empire News that is entirely fictional and quotes a couple of non-existent people with titles like "doctor of global weather" and "Senior Administrator of Meteorologists." There is also a map of the U.S. covered largely in shades of blue that indicate above normal snowfall, and frequent references to "bread and milk."
As it turns out, so far climatic signals for the upcoming winter for the U.S. are rather mixed, with current projections for the our state, along with our neighbors just north and south, given equal chances of above, near or below normal temperature and precipitation, following an October that is expected to have a better than average chance of being above normal for temperatures while having "equal chances" regarding temperature.
Historically, the earliest measurable snow for Raleigh occurred on November 6th, 1953 and we have had a trace of snow as early as October 24th, which happened in 1910.
Sep. 20, 2014 | Tags: folklore, snow, winter weather
Question: Is there suppose to be some type of lunar event tonight? On Facebook ,someone posted a once in a life time event was to occur . Something about Mars and the moon looking like they were side by side. — Charles Lett
Answer: We're past the date that you wrote in, but during the intervening time the only view of interest regarding the moon and Mars in our skies was a nice triangle pattern that the moon, Mars and Saturn made in the evening sky over the Labor Day weekend. However, we suspect you are referring to an old e-mail hoax about the appearance of Mars and the moon that has started floating around Facebook from time to time in August. The post gives the idea that the two of them will appear about the same size in the sky, which is simply an impossible situation. For more background on the hoax, and the corresponding reality, see these two blog posts -- www.wral.com/mars-will-not-be-as-big-as-the-moon/13921252/ and earthsky.org/astronomy-essentials/double-moon-on-august-27.
Sep. 4, 2014 | Tags: astronomy, folklore
Question: Does the Farmers Almanac have any science behind it? — David Copperwheat
Answer: It doesn't appear so, as they have not described the methods involved beyond what is written at farmersalmanac.com/farmers-almanac-forecasts/, which boils down to saying there is a secret formula developed in 1818 that only one person knows the details of. Several groups through the years have undertaken efforts to verify the accuracy of the forecasts, which can be difficult due to the lack of detail and the large geographic areas referenced by the outlooks, and generally found the forecasts verify about the same as if they were randomly generated, or based on typical variations around seasonal averages.
Aug. 30, 2014 | Tags: cool sites, folklore
Question: You recently showed the view at the airport with the bright sky in the background, but the icon still showed rain and you explained the time delay was responsible. However, in Southern Pines that day, there was a brief, isolated rain shower around 5 p.m. when the sun was getting low. For a time, it was raining and at the same time the sun was shining and casting shadows on the ground as the drops fell. This happens often in the Sandhills area I've noticed. We've always called it a sunshower. Is there a technical term for this? It's also an old wives' tale that the devil is beating his wife. — Ann Hopkins
Answer: There really isn't any special technical word or phrase for this, as it is just a form of rain or a rain shower. However, the "sunshower" term you mentioned is pretty well known as an informal way to refer to such an event, and we've heard of the "Devil beating his wife" reference as well, although we've been unable to turn up where that idea may have originated. While precipitation with some direct sun can occur under a variety of circumstances, it's most common with scattered, fairly small convective cells that quickly grow and dissipate in unstable airmasses, allowing for gaps between the clouds. In addition, if the clouds have fairly high bases and there is some wind shear between the cloud and the ground, it can be raining at the surface with blue sky directly overhead. Finally, these situations can be good for seeing rainbows, provided the sun is low enough in the sky.
Aug. 27, 2014 | Tags: atmospheric optics, clouds, folklore, rain
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Published: 2007-10-09 14:40:00
Updated: 2014-06-24 16:06:51
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