A cold-core low, also known as an upper level low or cold-core cyclone, is a cyclone aloft which has an associated cold pool of air residing at high altitude...

North Pacific, Northeastern United States and the northeast Atlantic. Cold-core low Cold pool Polar vortex Martín León, Francisco (2003). "LAS GOTAS FRÍAS...

Cold Core 500-mb Lows". Weather and Forecasting. 21 (6): 1051–1062. Bibcode:2006WtFor..21.1051D. doi:10.1175/WAF967.1. Cooley, Jack R. (1978). "Cold Air...

[citation needed]. However, vigorous polar lows can be found over the Southern Ocean. During winter, when cold-core lows with temperatures in the mid-levels...

lows form in mid-latitudes (usually in the subtropics or between 20° and 45°) and can remain nearly stationary for days. A cut-off low is a cold-core...

of low pressure. The largest low-pressure systems are cold-core polar cyclones and extratropical cyclones which lie on the synoptic scale. Warm-core cyclones...

sector of a low pressure system propagating generally in a north easterly direction[neutrality is disputed] in line with the cold front of the low pressure...

below 6,080 metres (19,950 ft) in altitude, as it is an example of a cold-core low. A weak inverted wave in the easterlies is generally found beneath it...

always feature warm-core lows, polar lows are primarily cold-core. The prolonged life of medicanes and similarity to polar lows is caused primarily by...

Nicorette approaching the NSW south coast tornadic waterspout. Pictures of cold-core waterspouts over Lake Michigan on 30 September 2006. Archived from the...

outbreak and its costliest weather disaster on record. Spawned by a nearby cold-core low, successive hailstorms in Phoenix and surrounding locations on October 5...

lows with extensive cumulonimbus clouds, which are often associated with cold pools in the mid- to upper-troposphere. During winter, when cold-core lows...

cycle. A tropical cyclone is the generic term for a warm-cored, non-frontal synoptic-scale low-pressure system over tropical or subtropical waters around...

cyclone couples with the upper-level trough or upper-level low, becoming increasingly cold core. The spin-down of cyclones, also known as cyclolysis, can...

large region of cold, rotating air; polar vortices encircle both of Earth's polar regions. Polar vortices also exist on other rotating, low-obliquity planetary...

center) to baroclinic processes. The low pressure system eventually loses its warm core and becomes a cold-core system. The peak time of subtropical cyclogenesis...

thus rendering it visible. They form over large lakes and oceans during cold air outbreaks while the water is still relatively warm, and can be an important...

ceases to rise. As it rises, it displaces air which descends outside the core of the vortex. This cool air returning acts as a balance against the spinning...

High can bring unusually cold weather into the tropics as far southeast as the Philippines. It may block or reduce the size of low-pressure cells and generate...

often associated with a local region of low-pressure. Their rotation is (usually) in the same direction as low pressure systems in a given hemisphere:...

lost at night, and cold weather in fall and winter when the amount of heat lost at night exceeds what is gained during daytime (with low pressure systems...

Surface-based Upper level Cold-core low Cut-off low Polar vortex Upper tropospheric cyclonic vortex...

reaching its highest latitude in early autumn, before moving back during the cold season. The El Niño–Southern Oscillation (ENSO) can displace the northern...

weather pattern that is as destructive as a hurricane, but which exhibits the cold-weather patterns of a winter storm. The Oxford English Dictionary has published...

either cold core or warm core, and in 1972 this type of subtropical cyclone was ephemerally referred to as a "neutercane". Kona storms (or Kona lows) are...

makes categorization of the systems not straightforward. Kona lows are typically cold core, making them extratropical cyclones. However, they generally...

intensified two days later, reaching peak intensity on 7 November, due to a cold-core low aloft. Qendresa directly hit Malta in the afternoon and then crossed...

Loyalton Fire in California and Nevada. A fire whirl consists of a burning core and a rotating pocket of air. A fire whirl can reach up to 2,000 °F (1,090 °C)...

Alberta clipper Cold-core low Panhandle hook Sudestada Winter storm Pacific Northwest windstorm Aleutian low European windstorm Polar vortex Cold wave Multi-Community...

tail-like band of cloud extending from the wall cloud toward the precipitation core. It can be thought of as an extension of the wall cloud in that the tail...