30 forecast for Winnetka! Comments must be on-topic; free of profanity, name-calling, or ad-hominem attacks; and cannot repeat misinformation about climate that has been widely debunked by authoritative sources. We can also track snowfall potential on normal temperature and precipitation Winter forecasts. I appreciate your support! Submitted by Finn Stiles on Sat, 02/25/2023 - 05:01. That part of the country also is expected to receive less snow than normal. Can MJO interfere with ENSO climate? Thanks Nat for this cogent and readable discussion! Starting with the seasonal average for Europe, we can see another weak snowfall forecast similar to the ECMWF. It says that temperatures there could drop 4 degrees below normal for the month something that could result in a damaged citrus crop and stunned iguanas. It was also noticeable that most mediterranean-like climates in both ( North and South) hemispheres had shown early signals of drought in December-January Projections from last year , the coupling of a negative ENSO and negative PDO with Negative IOD brings limited number of Lanina years with such combined wet-dry phases during a particular ENSO ( cold or warm ) . To better understand the ENSO changes, we produced a video showing the La Nina anomalies from Summer into Fall. This precipitation will either be rain or snow, depending on just how cold the air is, and where the freezing level is. So, I did not see any obviously linear effect of La Nina amplitude in the observational analysis. In this blog post, I hope to get this conversation rolling! We have seen a stronger-than-normal jet stream throughout the Southwest, which has brought the wetter conditions this winter. It calls for snowfall to be above normal toward the East Coast as well. Submitted by Matt on Thu, 02/23/2023 - 11:44. The December snow depth forecast shows less snow cover over most of the United States and Canada. Cloudier on Wednesday with outbreaks of rain and possibly snow, alongside strengthening winds. The National Oceanic and Atmospheric Administration says its own five-day forecast is accurate about 90% of the time and seven-day forecast 80%. Dont miss the full Winter forecast with pressure and temperature patterns: Winter Forecast 2022/2023 November Update: Cold ENSO phase peaks, with its growing weather influence as we head for the start of the Winter Season, Snow Extent in the Northern Hemisphere now Among the Highest in 56 years Increases the Likelihood of Cold Early Winter Forecast both in North America and Europe, Weather: A significant double-blocking pattern will bring a cold Winter start in December, disrupting the circulation and unlocking the cold air. UKMO uses a different parameter than the ECMWF but correlates directly with snowfall also. Fortunately, right on cue, the Farmers' Almanac has released its 2022/2023 winter weather forecast. This looks close to a usual historical snowfall pattern in a La Nina winter. We will take a closer look at the weather influence that La Nina usually shows over North America, which is under a more direct influence. Winter Forecast for Southwest Michigan for 2022/2023 Impactful Winter Weather On the Way A storm system will move into Lower Michigan for Friday, bringing primarily snow but some light freezing rain could mix in across the far south. NOAA forecasters, in collaboration with the National Integrated Drought Information System (NIDIS), continue to monitor extreme, ongoing drought conditions that have persisted in the Western U.S. since late 2020, as well as parts of the central U.S. where historic low-water conditions are currently present. Of course, as with all these predictions, they are just indications of the long-range patterns. December is favored to be the chilliest month on the Eastern Seaboard, with lower-than-normal temperatures expected from the Great Lakes down into parts of the Mid-Atlantic and Northeast. Resources such as drought.gov and climate.gov provide comprehensive tools to better understand and plan for climate-driven hazards. Overall, however, the winter season is not predicted to be overly wet. Drought conditions are now present across approximately 59% of the country, but parts of the Western U.S and southern Great Plains will continue to be the hardest hit this winter, said Jon Gottschalck, chief, Operational Prediction Branch, NOAAs Climate Prediction Center. C) and did not see any substantial differences than when I considered all La Nina episodes. In mid-January, the Farmers Almanac says, temperatures could drop as low as 40 degrees below zero in parts of the region. and last updated 5:53 AM, Mar 01, 2023. Submitted by Nathaniel.Johnson on Thu, 03/02/2023 - 17:00, In reply to Southeast Colorado and Northeast New Mexico by Tony Arnhold, Science & information for a climate-smart nation, torrential rains and heavy mountain snows, NOAAs Precipitation Reconstruction over Land (PREC/L). This winter it seems the temps were fairly uniform across the equator. Due to arctic amplification (or not) the jet steam has been "wavy" this winter bringing colder than average temperatures to the SW (I live in Tucson) and unusual warmth to the east. Unfortunately, a dry winter is predicted for the Southwest states, which won't help the drought situation. Maximum temperature 7C. This connection has been hypothesized, but the evidence is mixed. We see an equal-to-higher probability for more precipitation (and snowfall) over the northwest, extending into the Great Lakes and the eastern United States. Jamstec used to have a lot of information on their website but much of it seems to have left after a reported breach a couple of years back. Perhaps more relevant for this discussion, the teleconnections forced by the MJO also can interfere with those of ENSO. The more forecast data you can look at, the better idea you can get about the expected weather patterns. Thank you for the immense and informative analysis . Based on the Farmer's Almanac winter 2022-2023 predictions for the upcoming chilly season, the report shows that . I am wondering if there is a possibility that the triple-dip La Nina event from 2020 could create some kinds of conditions that make atmospheric rivers more active, resulting in the occurrence of torrential rains over the western United States. For completeness, I will mention that there are other potential sources of seasonal predictability, such as stratospheric, cryosphere, land surface or radiative forcing variations, but sea surface temperature variations generally are the most important. Instead, the pattern looked a bit more like the positive phase of the Pacific Meridional Mode. This can be as low as 200ft or so above sea level on some days, the Met Office explains. I also have noted that the tropical atmosphere has been more persistently La Nina-like than the Nino region sea surface temperatures in recent months. Submitted by Craig T on Thu, 03/02/2023 - 18:31, In reply to forecast busts by Nathaniel.Johnson, Submitted by Nathaniel.Johnson on Fri, 03/03/2023 - 10:31, Minor correction. Looking at the overall average forecast and comparing it to the previous forecast, we can see that the latest run has less snowfall over most of Europe, except towards the east and south. Despite the headlines, the winter weather predictions from both publications have a lot of similarities this year. And we also have the March snow forecast data available for North America. My conclusion: the chaotic weather variations are about 14 times more important than the variations in La Nia amplitude or flavor for Southwest U.S. precipitation, which is consistent with the figure above. Want to know how your actions can help make a difference for our planet? Between 9 and 23 November there could be an increasing chance of settled weather from mid-month, bringing a potential for colder, drier weather especially for the north and west, it said. This is only the 2nd time there has been above normal winter rainfall, Submitted by Craig T on Thu, 03/02/2023 - 08:09, In reply to jet stream by Nathaniel.Johnson. Probably the coupling of weak Polar vortex with the recurrent PV stratospheric warming has something to do with the Southward (equator-wise) migration of Atmospheric wet Rivers in mid to late winter , this last point is well-documented in many physical science papers that weak polar vortex post SSW events tend to measure more equator-wise migration of the Jetstream causing these atmospheric rivers to bring wetter than normal events to California and many mediterranean-like climates in the northern hemisphere late winter. The effects of air rising up hills and mountains must also be considered. By January, most of the country is mild, with lower temperatures farther north and a serious chill entering the Upper Midwest and Great Lakes region by February, while the Southeast especially toward Florida, warms up. Between 2013 and 2022, we delivered an organic revenue CAGR of 11. . But in general, AccuWeather is predicting a season of less snowfall on the Eastern Seaboard. I confirm from a regional point of view here in Jordan we had terribly dry December-January and the start of February was highlight with torrential rains . We can also see more snowfall hinted in this run over southern Great Britain. More snowfall is still forecast in the upper Midwest, with some hints of more snowfall around the central Great Lakes. As the monsoon rain band is situated south of the Equator, the Mekong sub-region . This early winter, the Southwest had 65% more precipitation than normal according to this precipitation dataset, which is the second highest La Nia total since 1951. So, that gets to the main point of the post. AccuWeather's 2022-2023 Canada winter forecast La Nia is expected to affect winter weather in Canada for the third straight year. Feeling cold. The Met Office has warned that snow may appear across the north and west of the UK as early as 9 November. Submitted by Scott Yuknis on Fri, 02/24/2023 - 04:55, In reply to About comments by rebecca.lindsey. Not sure how much that was a factor. Also, CPC data reveals an East Pacific MJO episode in January. A somewhat subjective rating of the day's weather, on a scale of 0 to 10. If one expects a deterministic forecast (it WILL be wet or it WILL be dry), then both the forecaster and user will be disappointed quite often. This is not too far from the ECMWF prediction, but we generally see more snowfall in the northern United States. These are blog posts, not official agency communications; if you quote from these posts or from the comments section, you should attribute the quoted material to the blogger or commenter, not to NOAA, CPC, or Climate.gov. This is all thanks to blocking high pressure to the north-west of the UK, which will prevent low pressure bringing mild air from the west and will instead favour colder air from the north and east. There will be a chance to catch the last major meteor shower of 2021 just before Christmas, with the Ursids peaking on December 22 and 23. Have a comment on this page? What does the latest ocean analysis data show, and what influence did it play on temperature and snowfall patterns in the past? The Farmers Almanac says temperatures in the Southeast and Northeast should become milder in February, though. More snowfall can be seen in parts of the Midwest and the northeastern United States. London and other areas in the south of England will surpass 20C higher than Athens, which is predicted to peak at 20C over the weekend. We see more snowfall over the northwestern and northern United States and southern Canada. Such heavy precipitation was unexpected prior to the season in a region afflicted with a multi-year severe drought, especially given that we are in the third consecutive winter of La Nia. The emerging La Nia weather pattern plays a part in this year's winter outlook. The southeastern United States snowfall is perhaps an unlikely scenario at first, but just one intense cold outbreak could bring some snowfall further far into the south. Durango Herald 3:40 AM MST on Mar 4, 2023. The main takeaway for much of the country: Expect snow, rain and mush, and a lot of it,. Although such climate models are rather sophisticated and reliable, they are imperfect. (NOAA Climate.gov, using NWS CPC data) Download Image Temperature Reporting on Earths changing climate and the people trying to find solutions to one of the biggest challenges of our era. The February snowfall forecast shows snowfall potential remaining over the northern parts of the United States. La Nia could enter rare third straight year. That means forecasts will bust from time to time, and success or failure must be evaluated over many forecasts. These temperatures ranged from near-normal to 4F warmer than normal. The Met Office adds: What about the moisture? A cold morning with a fair amount of cloud around, though perhaps some brighter spells, where there could be early morning frost. All rights reserved. With snow accumulation up to 88 inches, and entire summers with temperatures below freezing, the northern hemisphere was rattled with Satan's snow. Therefore, the variations among these 21 ensemble-averaged values, quantified as a standard deviation of 0.194 mm/day, largely reflect the effects of the different sea surface temperature patterns among the 21 La Nias. Any time. Severe Weather Europe 2023, Also, we will keep you updated on other developing weather trends, so bookmark our page. Chris Bilbrey, a forecaster with the Colorado Avalanche Information Center, digs a pit with Rebecca Hodgetts, southern mountains lead . We are currently in a La Nina phase, entering its third and final year, likely being replaced by a warm phase for 2023/2024. Transcript (PDF): October 20 virtual media briefing on Winter Outlook 2022, National Centers for Environmental Prediction, National Integrated Drought Information System. Seasonal Forecast for February - April 2023. That's a good point! It will modify the jet stream pattern over North America and the Pacific Ocean, extending its reach to the rest of the world. The problem with this approach, however, is that our record of reliable observations is just too short to slice and dice the data in this way. If there is one basic theme I've learned from all the postings on this blog is that our climate is very complex with many different parts and ENSO is just one big part of it so there is always going to make any winter outcome far from certain. While December was above-average as far as the temperature goes, January was a different story. More early Spring snowfall is also expected over the northwestern United States and the southern half of Canada while the La Nina influence slowly lets go. A first look at Winter 2022/2023 forecast shows an obvious influence of the third-year La Nina phase. Pastelok said that the warmer ocean temperatures could help to fuel a potentially big system that could affect the East Coast in the latter half of winter. Stay safe during severe cold weather. The 2022-2023 U.S. Winter Outlook map for precipitation shows wetter-than-average conditions are most likely in western Alaska, the Pacific Northwest, northern Rockies, Great Lakes and Ohio Valley. This model has been quite consistent with low snow accumulation since the early September runs. Verification, impacts and post-processing, Climate information for international development, Science for Impacts, Resilience and Adaptation (SIRA), Atmospheric processes and parametrizations, Regional model evaluation and development, Environmental Hazard and Resilience Services, National Meteorological Library & Archive. AccuWeather long-range forecasters are predicting that 40 to 50 inches will accumulate in the city, around the average snowfall amount of 49.2 inches. However, there is another way which requires very little wind at all high pressure that becomes established across the UK for a long time in winter. The climate model produces a total of 630 possible climate outcomes covering all La Nias from 1951-2020. If there aren't any climate researchers looking into this now, I'm sure there will be some soon! ENSO phases significantly influence tropical rainfall, pressure patterns, and the complex exchange between the ocean and the atmosphere. 7 day. The pattern in the map is very weak, with very small departures between the two groups. Enjoy summer while you can, folks because Ontario's 2022 winter weather forecast is shaping up to be a real drag. Typically there is a phase change around every 1-3 years. My calculation that follows confirms this suspicion. The UK is set to be hotter than Greece over the weekend as the countrycontinues to experience unusually warm temperatures this October. But take note of the trough of equal temperatures probability extending down low into the south-central states.