Tag

Jet Stream

All articles tagged with #jet stream

weather15 days ago•187 min saved

Eastern U.S. bracing for a sprawling heat dome next week

Forecasters expect a heat dome to lock over the eastern half of the United States next week, driving heat indices to 100–110°F (with some spots up to 115°F) and producing oppressive humidity with little overnight relief. Major cities including Chicago, Detroit, St. Louis, Dallas and Nashville could see their hottest days of the year as millions face Level 3–4 extreme heat risk while the jet stream shifts and traps hot air; the West cools somewhat in contrast. Utah faces extreme fire weather with rare “particularly dangerous” red-flag warnings and gusts up to 50 mph as ongoing fires burn nearby. The heat is projected to spread into the Northeast by midweek, and a potential westward shift toward the Plains could arrive around the Fourth of July weekend.

via CNN|

#eastern-us #heat-dome #heat-wave

science15 days ago•49 min saved

Cold Atlantic blob may fuel Europe’s heatwave, scientists say

A patch of unusually cold water in the subpolar North Atlantic, nicknamed the cold blob, has been linked to Europe’s heatwaves by influencing atmospheric circulation and the jet stream. While global temperatures rise, this region remains cooler due to ocean currents delivering less heat and Greenland meltwater adding freshwater, which may weaken the Atlantic Meridional Overturning Circulation (AMOC). Scientists warn that a further slowdown or collapse of the AMOC could bring harsher European winters, droughts elsewhere, and higher sea levels, though a cold Atlantic patch does not erase warming and extreme heat can persist under certain jet-stream patterns.

via Yahoo|

#amoc #cold-blob #europe-heatwave

environment17 days ago•5 min saved

Europe's Heatwave: Not El Niño, but Climate Change Amplification

Western Europe is in the throes of a third heatwave, with France under red alerts and the UK and Germany facing near-40°C highs. While El Niño is being cited as a driver, experts say its direct impact on Europe is weak; the heat is primarily due to a persistent jet-stream blocking pattern on a warming background, with climate change amplifying extremes and increasing drought and wildfire risks.

via Euronews.com|

#climate-change #el-nino #environment

science1 month ago•2 min saved

Ocean Conveyor Slowing Could Spark Global Weather Shifts

Evidence cited by New Scientist shows the Atlantic Meridional Overturning Circulation is weakening, allowing cold Greenland waters to pool in the North Atlantic and form a 'cold blob' that can disrupt the jet stream and drive extreme weather; some models warn of a potential climate tipping point by around 2040, though scientists debate whether the slowdown is driven more by oceanic processes or atmospheric forces.

via Futurism|

#amoc #climate-change #extreme-weather

science3 months ago•4 min saved

Giant Heat Dome Pushes U.S. Toward Historic March Heat Wave

A massive high-pressure heat dome is trapping hot air over the U.S., expanding into the East and producing a sweeping, potentially historic March heat wave with many states recording or nearing new March highs; temperatures in the 90s are expected across the southern and central Plains, and several locations hit 112°F in the Southwest. The heat is expected to persist into mid-next week as the dome shifts east, while scientists say climate-change warming has made such extreme heat far more likely.

via ScienceAlert|

#climate-change #heat-dome #heat-wave

weather5 months ago•16 min saved

Arctic Air Surges South as Polar Vortex Fuels US Winter Blast

A stretched polar vortex is funneling Arctic air into the United States, setting the stage for a significant winter blast with very cold temperatures and potential snow across parts of the Midwest and Northeast as the pattern unfolds.

via AP News|

#cold-snap #jet-stream #polar-vortex

weather6 months ago•2 min saved

Weather Pattern Shift Promises Warmer Temperatures Before Christmas

A shift in the jet stream pattern in December's second half is likely to reduce the chances of a white Christmas across much of the US, with milder temperatures causing snow to melt in many areas, though northern regions may still see snow on Christmas morning. The odds of a white Christmas vary by location, with northern states having higher chances than southern states, and the possibility of additional snowfall next week remains uncertain.

via CNN|

#december-weather #jet-stream #snow

science6 months ago•5 min saved

2025's Extreme Weather and the Jet Stream's Impact on U.S. Risk Perception

The summer of 2025 saw unprecedented U.S. flooding and unusual hurricane patterns largely influenced by a weakened and southward-shifted polar jet stream, driven by climate change, which caused prolonged storms and prevented hurricanes from hitting the mainland.

via The Conversation|

#climate-change #extreme-weather #flooding

science1 year ago•4 min saved

Scientists Discover Two Ocean Bands Heating at Record Speeds

Scientists have identified two major ocean bands near 40 degrees latitude in both hemispheres that are heating at unprecedented rates, influenced by shifts in wind patterns and ocean currents, with significant implications for climate, weather, and marine life. The study highlights the uneven distribution of ocean heat and the importance of long-term data to understand climate change impacts.

via Earth.com|

#climate-change #jet-stream #marine-ecosystems

weather2 years ago•1 min saved

"Unprecedented Heatwave Sweeps Across the US"

A powerful winter storm is bringing deep snow to the West, while much of the central US experiences unseasonably warm weather due to the jet stream's northward position, global warming's impact on temperatures, and the El Niño weather pattern. January 2024 broke the record for the warmest first month of the year, and the East Coast is expected to see warmer weather by mid-week. Southern regions could experience temperatures in the ‘80s and ’90s, with Dallas-Fort Worth likely to break a daily record.

via The Associated Press|

#el-nino #global-warming #jet-stream

travel2 years ago•6 min saved

"Record-breaking Winds Propel Passenger Planes to Supersonic Speeds Over the Atlantic"

Freak winds in the Atlantic jet stream propelled five commercial flights to speeds exceeding 800mph, faster than the speed of sound, cutting their travel times significantly. While this allowed for earlier arrivals, it also led to more severe turbulence due to faster jet stream speeds, a consequence of global warming. Scientists suggest that redirecting flights to take better advantage of favorable winds could save fuel and reduce carbon emissions, but the trade-off is an increase in turbulence.

via Daily Mail|

#commercial-flights #global-warming #jet-stream

transportation2 years ago•2 min saved

"Northeast's Near-Record Winds Propel Passenger Flights to New Heights"

Near-record high-altitude winds over the Northeast propelled commercial passenger planes to speeds exceeding 800 mph, with a Virgin Atlantic flight from Washington, D.C., to London arriving 45 minutes ahead of schedule and reaching a ground speed of 802 mph. A United Airlines flight from Newark to Lisbon also experienced a peak ground speed of 838 mph, cutting 20 minutes off its scheduled flight time. The powerful jet streams, driven by temperature contrasts, are responsible for these unusually high speeds.

via NPR|

#commercial-flights #jet-stream #northeast

travel2 years ago•2 min saved

"Record-Breaking Jet Stream Propels Passenger Planes to 800+ mph Speeds"

Near-record winds of 265 mph at 35,000 feet over the Mid-Atlantic allowed commercial flights to reach speeds over 800 mph, with one flight from Washington to London landing 45 minutes ahead of schedule. The high winds were caused by a powerful jet stream resulting from the contrast between cold air over the Northeast and warm air over the Southeast. The fast high-altitude flow also contributed to less snowfall than predicted in Washington.

via The Washington Post|

#commercial-flights #high-speed-winds #jet-stream

weather2 years ago•2 min saved

"From Cold Snap to January Thaw: Weather Pattern Shift Brings Wild Temperature Swing to US"

A major weather pattern change is set to bring a significant swing in temperatures across the US next week, with above-average temperatures forecast for the entire Lower 48. The shift is driven by a change in the jet stream's positioning, which will trap cold air in Canada and allow warm air from the tropics to surge northward into the US. This will result in milder conditions and drastic temperature changes, with some areas experiencing 40- to 50-degree swings from this week's cold to next week's unseasonable warmth. The above-average warmth is expected to persist through the end of January, according to the Climate Prediction Center.

via CNN|

#climate-prediction-center #jet-stream #temperature-swing

weather2 years ago•4 min saved

El Niño's Growing Strength Raises Concerns for Increased Flooding and Hotter Earth

The El Niño event is strengthening, with sea-surface temperatures in the central tropical Pacific Ocean reaching above-average levels. NOAA forecasts a 55% chance of a strong El Niño lasting through winter and a 62% chance of El Niño conditions persisting into spring. There is also a 35% chance of reaching historically strong levels. El Niño impacts include a shift in the jet stream, which can have major effects on weather patterns in the United States. However, computer models and tropical activity around the globe make it challenging to predict the exact strength and duration of the El Niño event. Past historically strong El Niño events have caused destructive storms and significant weather impacts.

via Fox Weather |

#climate #el-nino #jet-stream