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[2] [5] The number of days in May and June that are "gloomy" varies from year to year. Anomalies in sea surface temperature can be used to forecast the length and intensity of the June Gloom phenomenon in a given season. [2] Years with warmer ocean temperatures, referred to as El Niño, may result in fewer gray days in May and June. [6]
Southern California's May gray has been stubborn. Here's an explanation. ... But be prepared for June gloom. Skip to main content. News. 24/7 help. For premium support please call: 800-290-4726 ...
May gray and June gloom are natural heat shields for Southern California. Researchers say their days may be numbered due to climate change.
In contrast with the sunny summer, late spring in southern California is often overcast. This period, known to the locals as "May Gray" and "June Gloom", dims the coastal skies of sunny southern California. [6] During this time, the coastal clouds may remain all day, but often give way to some hazy afternoon sunshine.
Occasionally the marine layer becomes particularly deep, and the clouds on land can persist all day. This can happen at any time of the year, inspiring colloquialisms such as "May Gray" or "June Gloom". An approaching frontal system or trough can also drive the marine layer onshore. [1]
Southern California can expect cooler weather over the next few days, with a deep marine layer pattern bringing low clouds and fog similar to May and June.
These extended periods of cloudiness are usually a consequence of a weak area of low pressure above the marine layer which increases its depth, making it more difficult for surface heating to evaporate the clouds within it. These periods of persistent overcast have inspired colloquialisms such as "May Gray", "June Gloom", "No Sky July" and ...
The extended days of gloominess in L.A. are due to a persistent upper-level trough of low pressure over the West Coast, according to meteorologists.