twitter:BuzzFeedStorm twitterde op donderdag 03-09-2015 om 03:11:46 First snow of the season falls at @CrystalMt as cold storm hits Washington state https://t.co/zWqmuiU0wN reageer retweet
Die kans is er zeker. Toronto ligt bij de grote meren, waar zeer veel sneeuw kan vallen. De hele maand maart is het daar normaal gesproken nog winter(s).quote:Op donderdag 3 september 2015 15:15 schreef Ajaxfan het volgende:
Zeg ik ga volgend jaar eind maart richting Toronto. Hoe groot is de kans dan dat ik een witte wereld heb nog of is dat te laat in het jaar zelfs daar?
Met mate natuurlijk wel. 2 meter hoeft ook weer niet.quote:Op donderdag 3 september 2015 18:46 schreef Snowsquall het volgende:
Het kan wel maar je kunt er de klok niet op gelijk zetten. Net als de eerste sneeuw in oktober.....Afgelopen winter was een lange koude sneeuwrijke winter, mn zus en zwager waren er niet blij mee
Zo erg als februari dit jaar hopelijk niet. Sneeuw is leuk maar ingesneeuwd raken neeet niet.quote:Op donderdag 3 september 2015 19:00 schreef aloa het volgende:
[..]
Die kans is er zeker. Toronto ligt bij de grote meren, waar zeer veel sneeuw kan vallen. De hele maand maart is het daar normaal gesproken nog winter(s).
twitter:KeithCarson twitterde op zaterdag 05-09-2015 om 02:41:34 This is real life: Pocatello, ID today.(Courtesy: Ryan Walbrun) #Winteriscoming http://t.co/dgcfDq0w9F reageer retweet
Wel op hoogte vermoed ik... Te zien aan de bomen edquote:Op zaterdag 5 september 2015 03:08 schreef aloa het volgende:
Sneeuw gemeld in Idaho.[ afbeelding ]twitter:KeithCarson twitterde op zaterdag 05-09-2015 om 02:41:34 This is real life: Pocatello, ID today.(Courtesy: Ryan Walbrun) #Winteriscoming http://t.co/dgcfDq0w9F reageer retweet
Op hoogte idd. Was ook heel plaatselijk wit daarquote:Op maandag 7 september 2015 11:33 schreef Godshand het volgende:
[..]
Wel op hoogte vermoed ik... Te zien aan de bomen ed
twitter:RyanMaue twitterde op donderdag 10-09-2015 om 06:41:28 7 day snow from Alaska to Washington; already time for those #ElNino snowpacks to build ...huge moisture plumes dump http://t.co/9xd9obbA3u reageer retweet
Dat dacht ik ook...sneeuw valt uiteraard in de Rocky Mountains.quote:Op zaterdag 19 september 2015 15:10 schreef Adrie072 het volgende:
Had eerlijk gezegd verwacht dat Denver een stuk noordelijker in Amerika lag.
In Ohio sneeuwt het volgens mij (nog) niet.quote:Op zaterdag 19 september 2015 15:52 schreef sararaats het volgende:
In Ohio sneeuwt het toch ook? Maar leuk topic om te volgen.
Sneeuwgevechten houden ze niet in Noord Amerika of wel?
twitter:MarkVogan twitterde op woensdag 30-09-2015 om 10:58:44 US East Coast hurricane threat this weekend while up in Alaska, 7.4" snowstorm cuts power in Fairbanks. @JimCantore http://t.co/3Cafz8VGxi reageer retweet
quote:It’s Almost Winter. How Much Snow Is the East Coast Going to Get?
Snow and ice cover Central Park on Feb. 20, 2015, in New York City. Get ready for more of the same this winter.
Photo by Spencer Platt/Getty Images
It’s that time of the year again: mid-Autumn, when East Coast snow lovers start salivating and winter grinches begin planning their Palm Beach getaways. Behind all the anxiety (for most of us) and anticipation (for masochists and skiers), there’s really only one question: How much snow are we going to get?
In my annual winter weather preview back in August, I wrote that thanks to a superstrong El Niño, this year is special. In a sentence: El Niño tends to supercharge the jet stream over the southern United States, bringing increased chances of rainfall to southern California, Texas, and Florida, and providing more energy for East Coast winter storms—nor’easters, in weather lingo.
This year’s El Niño is already one of the strongest on record—NASA climatologist Bill Patzert recently declared it “too big to fail.” That’s really good news for drought-weary California, where there’s been a consistent signal for months now that this winter will alleviate—though not end—the state’s drought woes. (In fact, experts there are now beginning to worry about the risk of flooding—a preview of which hit Los Angeles County on Thursday night.) But for the East Coast, it’s still unclear whether the frequent nor’easters will produce snow and ice, or just lots of cold rain.
In its winter outlook, issued last month, the Weather Channel said the odds are slightly tilted toward the former, thanks to a better-than-average chance of blocking patterns—semistable atmospheric anomalies that tend to send cold air toward the East Coast. An early analysis of October snowfall in Siberia—which historically shows a link to how cold it gets during the winter in the Eastern U.S.—argues for pretty much the same thing: lots of snow.
On Thursday, the National Oceanic and Atmospheric Administration—America’s official weather nerds—chimed in. In general, their outlook favors wetter-than-normal conditions on the East Coast during the peak winter months but takes a pass on saying how much of this will fall as snow. On a conference call with reporters, the deputy director of NOAA’s Climate Prediction Center, Mike Halpert, said “we’ve seen even in warmer winters, big snowstorms in the mid-Atlantic and Northeast.” But in a follow-up call with Slate, Halpert emphasized that although the effect of El Niño dominates NOAA’s winter forecast, pretty much anything can happen. “A lot of the El Niño years seem to be boom or bust,” Halpert said. “While El Niño can play a strong influence, it really isn’t the only thing.”
Take the Washington, D.C., area as an example: Halpert said there are only two winters over the past several decades when D.C. got less than an inch of snow—1972–73 and 1997–98—and both were strong El Niño years. Neither of those winters featured especially strong blocking on the East Coast, so it wasn’t typically cold enough for the frequent storms to turn into snow.
Although 1997–98—the strongest El Niño on record—didn’t bring much snow to D.C., that doesn’t mean it was an easy winter. Several harsh outbreaks of freezing rain hit the East—including a huge January storm that hit New England and Canada hard, becoming Quebec’s costliest natural disaster in history.
To learn more about what this winter might bring, I dug into New York City’s weather archives and compared them to the strength of this El Niño and the North American Oscillation, an indicator of blocking and cold-air availability. (I can send you the data, if you’re interested.)
Of the 20 El Niño winters since 1950, the average snowfall was 35.5 inches, almost seven inches above the long-term average. But when you narrow that down to just winters with a strong El Niño and a strongly negative NAO—meaning lots of cold air in the East—two seasons jump out: 1957–58 and 2009–10. Both were epic snowfall seasons on the East Coast—and averaged 20 inches above normal snowfall in New York City.
A quick peek at the current NAO reveals—drum roll please—it’s strongly negative. Now, sure, basing a forecast for a tough East Coast winter on just two past examples is a risky thing to do, but the fact is, there aren’t too many years like 2015 in the historical weather databases. Right on cue, the weather in the East looks like it will be turning sharply colder this weekend, with a good chance of the season’s first freeze in many locations.
Bottom line: As it looks right now, the East Coast seems in line for a fairly harsh winter, with plenty of snow and ice, especially for interior parts of New York and New England. If the NAO—which is notoriously unpredictable this far in advance—hangs on and remains strongly negative, you can add New York City to that list. Still, it’s not going to be nearly as cold as the near-record chill of last winter, especially in Boston and the rest of New England. The mid-Atlantic is the wild card in this whole winter forecast. There’s a good chance the D.C. area gets spared the worst of it, but as for the rest of you, I’d invest in a snowblower if for some reason you didn’t buy one during last year’s winter wonderland/hell.
http://www.slate.com/blog(...)of_snow_and_ice.html
twitter:stormchaser4850 twitterde op dinsdag 03-11-2015 om 15:09:23 View of the snowy conditions this morning in #CookeCity #MT https://t.co/BaTLzaUW9i #WinterStormWARNING #MTwx https://t.co/6AU5X1akJv reageer retweet
quote:High winds will continue to blast the Midwest and will bring the potential for property damage, sporadic power outages and travel disruptions into Friday.
The same storm responsible for recent heavy snow in the Rockies and severe weather in the Central states will be the culprit behind the damaging winds in the Midwest. Gusts between 40 and 60 mph are expected around the Great Lakes region to end the week.
The strongest gusts will occur from northern Illinois to western New York and northwestern Pennsylvania into Thursday night.
A gust to 66 mph occurred at Dunkirk Lighthouse on Lake Erie, during Thursday. Gusts topped 50 mph in Chicago and Detroit.
According to AccuWeather Chief Meteorologist Elliot Abrams, the high wind event will affect more people than the severe thunderstorms that occurred on Wednesday.
"The strong winds will last for many hours and in some cases a couple of days, compared to minutes from Wednesday's severe thunderstorms," Abrams said.
Gusty winds will continue to blast areas around the central and lower Great Lakes during Thursday night and into Friday.
http://www.accuweather.co(...)weep-across/53523447
twitter:KOCOShelby twitterde op zaterdag 28-11-2015 om 15:25:34 Crushed car in El Reno from @ChanceTColdiron #okwx #okice 8:25am @koconews https://t.co/jWxw0vFHFI reageer retweet
Bizarre temperaturen in New York. Temperaturen gaan komende week wel snel naar beneden.twitter:GNT_Josh twitterde op donderdag 24-12-2015 om 00:40:50 If the forecasts hold true New York's Christmas Eve will be higher temperature than its 4th of July. Uh.... reageer retweet
In Mexico kan het nog aardig koud worden volgens mij.quote:Op maandag 28 december 2015 23:11 schreef Nattekat het volgende:
Bijeffect van El Nino?
Terwijl het in grote delen van de VS en Europa warm is, sneeuwt het op een plek waar je het nooit zou verwachten.
quote:Sneeuw
Dat Mexico een groot land is met een grote verscheidenheid aan klimaten wordt ook duidelijk door het feit dat er naast tropische regenwouden ook delen van het land te maken krijgen met sneeuw. Het centrale gedeelte van het noorden, dat grenst aan de Verenigde Staten, krijgt regelmatig te maken met sneeuwval. Dit is te wijten aan koude lucht die vanuit de Rocky Mountains in zuidelijke richting verplaatst wordt en zorgt voor kou en eventueel sneeuw. Ook de hoogstgelegen bergtoppen die meer zuidwaarts liggen kan het sneeuwen.
Zelfs in tropische gebieden kan onder extreme omstandigheden sneeuw voorkomen. De stad Tampico die toch echt in een tropische zone ligt krijgt gemiddeld eens per eeuw te maken met witte vlokken.
http://www.klimaatinfo.nl/mexico/
En daar zit dan geen zee tussen. In Afrika wel.quote:Op maandag 28 december 2015 23:50 schreef Nattekat het volgende:
Van Noord Afrika kan ik wel een idee krijgen, de kou uit de Balkan hoeft maar een heel klein stukje zee te overbruggen. In Mexico precies hetzelfde, maar dan met de vochtigheid uit het Caribisch gebied.
Maar volgens mij is dat nu niet het geval, El Nino houdt de kou uit de VS.
dat idd. Het gaat om het verschil in temperatuur. De koude poollicht die over de warmere meren gaat.quote:Op vrijdag 15 januari 2016 19:32 schreef thijsdetweede het volgende:
Hier in Cleveland lag er tot april sneeuw vorig jaar. Dus ja, lake effect kan de hele winter (tenzij het meer dicht vriest natuurlijk)
Dus in theorie is de 'warme' winter die er tot januari is geweest dan wel positief?quote:Op vrijdag 15 januari 2016 21:02 schreef aloa het volgende:
[..]
dat idd. Het gaat om het verschil in temperatuur. De koude poollicht die over de warmere meren gaat.
Voor veel sneeuw wel.quote:Op zaterdag 16 januari 2016 08:13 schreef Ajaxfan het volgende:
[..]
Dus in theorie is de 'warme' winter die er tot januari is geweest dan wel positief?
twitter:reedtimmerTVN twitterde op maandag 18-01-2016 om 13:42:50 Confidence increasing for major nor'easter to impact parts of Northeast U.S. Friday PM to Sat incl. DC, NYC, Boston! https://t.co/Ppa4ibW8QE reageer retweet
De beruchte noordooster storm...altijd goed voor veel sneeuw.quote:Op maandag 18 januari 2016 13:45 schreef Frutsel het volgende:
[ afbeelding ]twitter:reedtimmerTVN twitterde op maandag 18-01-2016 om 13:42:50 Confidence increasing for major nor'easter to impact parts of Northeast U.S. Friday PM to Sat incl. DC, NYC, Boston! https://t.co/Ppa4ibW8QE reageer retweet
quote:The potential exists for a major snowstorm to affect more than 50 million across the eastern United States at the end of the week.
Areas from near Washington, D.C., to around New York City are within the swath most likely to receive the heaviest snow from the storm.
The exact track of a storm will hold the key as to which areas in mid-Atlantic and New England are hit with heavy snow, dangerous highway travel and scores of flight delays and cancellations during Friday into Saturday.
Unlike most storms so far this winter, this system will have sufficient enough cold air to produce snow and disruptions to daily activities in some areas of the East that have seen little thus far.
http://www.accuweather.co(...)ay-saturday/54870622
Lijkt mij best bijzonder om mee te maken over minder dan 2 maanden. Kom je alleen niet snel weer weg.quote:
quote:'Potential greatest snowstorms in decades'
For an event still several days out, computer models were in remarkable agreement late Tuesday on what could be one of the greatest snowstorms in decades for the region around Washington, D.C. It’s difficult to convey what the models are projecting without appearing to sensationalize the event, but here goes: there is every indication that snow totals on the order of two feet are quite possible across parts of the greater D.C./Baltimore area, with the potential for almost as much in Philadelphia and perhaps a foot toward New York City. Anything over 20” at Washington National Airport would be the greatest snowfall for D.C.’s official reporting station in almost a century (see below).
Although it’s too soon to get too precise about exact amounts and locations, confidence is uncommonly high for a high-impact event in the mid-Atlantic. The 0Z Wednesday run of the GFS doubled down on the prognosis, with projected snowfall amounts exceeding 30” within commuting distance of the district (see Figure 1). As a group, the ensemble members with this GFS run weren’t quite as bullish, but as noted by Capital Weather Gang, the ensemble average still projects a widespread 20” or more over much of the D.C. area. At this writing, the 0Z operational run of the ECMWF model was just coming in, and it appeared just as compelling as the GFS output below in terms of a potential record-breaking storm for the D.C. area.
The making of a winter blockbuster
The impetus for the storm is an upper-level impulse that was moving into the Pacific Northwest late Tuesday. The jet-stream energy will sweep across the mid-South on Thursday into Friday, helping produce a quick shot of snow and ice for parts of Arkansas, Kentucky, and Tennessee. Snow could begin as soon as midday Friday ahead of this impulse over the D.C. area. Then, as the jet-stream energy carves out a powerhouse upper low, a surface cyclone should intensify on Saturday off the Virginia coast--a prime location for big mid-Atlantic snowstorms. In classic fashion, the low-level cyclone will funnel warm, moist air from the tropical Atlantic into the region, with the air mass cooling and generating snow as it rises.
The storm’s expected evolution is “textbook,” said NOAA’s Paul Kocin in an NWS forecast discussion on Tuesday. Kocin would know: he literally wrote the book on the subject with NWS director Louis Uccellini, the classic two-volume ”Northeast Snowstorms”.
There are many failure modes for big mid-Atlantic snowstorms. For example, warm air wrapping around the surface cyclone can turn the snow to rain or sleet, or a dry slot can develop south of the surface low--and of course, the location of key features can shift. At least for the time being, the model depictions are threading the needle around these frequent storm-killers, keeping alive the possibility of a once-in-a-generation event for at least some areas. Snow could fall more or less continuously for an unusually long span of 36 hours or more, heightening the chance of big accumulations.
A serious flood threat for the mid-Atlantic coast
There is more than snow in the works with this storm. The ferocious dynamics at play during the storm’s height could produce winds of 40-50 mph or more, which would lead to blizzard conditions and huge drifts. On top of that, strong onshore winds may produce waves up to 20 feet and major coastal flooding, especially from New Jersey to the Delmarva Peninsula. The full moon on Saturday will only add to the risk of significant flood impacts. In addition, sea-surface temperatures running 5 - 7°F above average should keep the offshore surface air relatively warm, allowing strong winds aloft to mix to the surface more readily than usual for a midwinter nor’easter, as noted by the NWS/Philadelphia office in a weather discussion on Tuesday night. The risk of damaging coastal flooding will need to be watched with the same vigilance as the potential for crippling snowfall just inland.
twitter:weatherchannel twitterde op dinsdag 02-02-2016 om 13:24:28 #Punxsutawney Phil does not see his shadow, and predicts #spring comes 6 weeks early! #GroundhogDay @AMHQ https://t.co/e2dSGWFZwT reageer retweet
Ik dacht altijd dat Groundhog day een verzinsel was maar het is best een ding in die regionen.quote:Op dinsdag 2 februari 2016 13:25 schreef Houtenbeen het volgende:[ afbeelding ]twitter:weatherchannel twitterde op dinsdag 02-02-2016 om 13:24:28 #Punxsutawney Phil does not see his shadow, and predicts #spring comes 6 weeks early! #GroundhogDay @AMHQ https://t.co/e2dSGWFZwT reageer retweet
quote:An extremely dangerous fire weather day is possible on Thursday. Equivalent of a High Risk for severe storms.
quote:"The highest 24 hour snowfall accumulation for Ottawa was recorded Tuesday with a whopping 51 cm of snow," says Weather Network meteorologist Erin Wenckstern. "That smashed the old record of 40.6 cm of snow set back on March 2, 1947."
quote:Arctic air will plunge into much of the central and eastern United States, as the polar vortex shifts its position during early April.
Following a pattern favoring more warm days than cold days into next week, a change will likely bring record cold to parts of the Midwest and East.
"The polar vortex will drop into Ontario during the first weekend in April," according to AccuWeather Long-Range Meteorologist Joe Lundberg.
http://www.accuweather.co(...)early-april/56265180
En dan te bedenken dat het 11 graden was toen ik een week geleden in Toronto was.quote:Op dinsdag 5 april 2016 03:04 schreef aloa het volgende:
Nog meer kou deze week en komend weekend.
[ afbeelding ]
http://www.accuweather.co(...)nd-of-april/56489853
Je zou daar maar echt een afkeer hebben op de winter...quote:Op dinsdag 5 april 2016 03:04 schreef aloa het volgende:
Nog meer kou deze week en komend weekend.
[ afbeelding ]
http://www.accuweather.co(...)nd-of-april/56489853
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