Like with all things weather, forecasting beyond 10 days is extremely difficult. May 2020 Long Range Weather Forecast for Atlantic Corridor; Dates Weather Conditions; May 1-3: Sunny, cool: May 4-14: Scattered t-storms, turning quite warm: May 15-19: Sunny, cool north; t-storms, warm south: May 20-26: A few t-storms, cool: May 27-31: Rainy, cool: May: temperature 67° (5° above avg.) ... & Hail Reports HURRICANE 2020 Atlantic Hurricanes Atlantic sea surface temperatures SNOW Snowstorm Forecast Snow Depth & Snow Accum. Get the Long Range Weather for Your Location. NOAA is predicting above average snowfall this winter in Montana, Wyoming, and the Great Lakes area with an increased chance of precipitation in Northern Colorado starting in March. The jet stream is identified as winds at 300mb (during Winter) and 200mb (during Summer). Back to top . Home » Long range / seasonal forecast » You are reading » Summer 2020 forecast: A closer look at Europe and North America, as negative ENSO takes over the Tropics. Accumulated Snowfall Surface Temperature Surface Dewpoint Jet Stream Winds Cloud Cover Surface Winds Accumulated Precipitation. For those who prefer a simple reading/conclusion and prefer not to read the long technical analysis, scroll to the Conclusions section at the bottom. On a typical La Niña year, the jet stream tends to have a more northern positioning, which can mean consistent cold storms in places like British Columbia, Oregon, Idaho, Wyoming, Montana, Utah, and central/northern Colorado. The models in the IRI/CPC plume are roughly split between La Niña and ENSO-neutral (Nino-3.4 index between -0.5°C and +0.5°C) during the fall and winter. This page shows temperature and rainfall anomalies that are expected to prevail over European and Mediterranean areas during the next 7 months. Tropical convection was suppressed over the western and central Pacific, and near average over Indonesia. USA National Forecast. Jet Stream Winds at 300 mb (~30,000 ft) (GFS 10-day Forecast) Jet Stream Winds at ~30,000 ft (GFS 10‑day Forecast) Local Weather. Our experienced meteorologists all have at least Masters degrees in Meteorology or Atmospheric Sciences. The Niño-4 and Niño-3.4 indices were near zero during the latest week, while the Niño-3 and Niño-1+2 indices were negative. Depending on the temperature of the western vs. eastern regions of the equatorial Pacific Ocean, the atmosphere and subsequent meteorological drivers like the Jet Stream can be altered and have wide ranging effects on everything from rice harvests in Indonesia to snow depths in Colorado. It is these winds which are responsible for driving and developing weather systems across the Atlantic. UK weather forecast: Violent jet stream to cause series of brutal storms until SPRING STORMS steered into Britain on powerful jet stream winds threaten to hammer the nation until the start of spring. The unfortunate news is that NOAA is projecting above average temperatures for most of the United States throughout the winter of 2020-2021. Jet stream You probably hear a lot about the Jet Stream in the news. Long-range weather forecast for winter 2019/2020 The official forecast is predicting a 50-55% chance of the neutral phase continuing through winter. So stay flexible getting your snow dance on, because after all, it never hurts to dance. Snowstorm Forecast U.S. 6-hourly Snowfall Forecast 3 DAY NAM MODEL FORECASTS - Clouds & Precipitation - Temperature 7 DAY NWS MOS FORECASTS - Weather Type - Precip. Pattern Change Next Week Will Bring Warmer Temperatures to the West While East Stays Cool and Wet . The jet stream is a large and powerful stream of air (wind) at around 8-11km (5-7mi) altitude. Also, 5 to 7-day forecast maps & Jet Stream forecast maps. jet stream over the northern tier of states expected 11 days ago. Long-term seasonal forecast of temperature and rainfall anomalies. While each La Niña has the potential to be wildly different than the last, the southern states of the west tend to get slightly less than average snowfall. The chance of it tilting towards La Niña is 15%. Dec 7-13: As one weather system exits the Northeast Monday, a second will spin up over the Southeast and track up the Mid-Atlantic Coast to keep the East near normal to slightly cool w/highs of 30s to 50s. On a typical La Niña year, the jet stream tends to have a more northern positioning, which can mean consistent cold storms in places like British Columbia, Oregon, Idaho, Wyoming, Montana, Utah, and central/northern Colorado.. The rather benign weather pattern will be thanks to a northward shift in the jet stream , or the fast river of air at the level that jets cruise which guides weather systems along. Surface Analysis. Probability - High Temperatures - Low Temperatures - Cloud Cover - Wind - Relative Humidity - Dewpoint - Snowfall 10 DAY GFS MODEL FORECASTS - Surface Pressure & Precip. BBC Weather Partner Jet stream You probably hear a lot about the Jet Stream in the news. Below normal precipitation amounts are favored for most areas west of the While each La Niña has the potential to be wildly different than the last, the southern states of the west tend to get slightly less than average snowfall. Both European models show drier than normal conditions over mainland Europe. USA National Forecast. Please note there is not a lot of accuracy for this kind of time frame. UK snow forecast: Winter 2020 could be the coldest in 10 years ... according to some long-range forecasts. 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