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California’s Central Valley Gripped by Weeks-Long Tule Fog, Satellite Images Reveal
HANFORD, CA – California’s Central Valley is currently experiencing a prolonged period of dense tule fog, impacting visibility and disrupting daily life for residents. Satellite imagery from NASA and CIRA showcases the fog’s vast reach, stretching over 400 miles and persisting for approximately three weeks.
The phenomenon, known as tule fog, began forming around November 22nd and solidified by November 24th. It has stubbornly clung to the region ever since.
According to experts, the current conditions are a result of a combination of factors. Unusually wet conditions in the fall, with September through November precipitation ranking among the top 10% wettest on record for many areas of central and southern California, have saturated the soil and provided ample moisture. Modesto and Hanford even broke records for the wettest meteorological fall since records began. Adding to this, a stable high-pressure system has settled over California, trapping the moisture and creating a temperature inversion, where cool air is held near the surface.
The fog has brought cooler temperatures to the valley while the rest of the Southwest experiences above-average warmth.
The National Weather Service in Hanford is forecasting the fog to continue at least through Friday. Until a significant weather system arrives to break down the stable air mass and dry out the region, residents can expect the gray conditions to persist.
“Until a storm comes in to clear out the moist air, there’s no anticipated end to the foggy conditions” warned the National Weather Service in Hanford.
Summary of Original Text:
California’s Central Valley is blanketed by a 400-mile-long tule fog for three weeks, beginning around Nov. 22nd. The fog is caused by moist soil from a very wet fall (the wettest meteorological fall on record for Modesto and Hanford) and a stable high-pressure system that’s trapping the moisture. The NWS is warning that it will continue until at least the end of the week, until a storm comes to clear the moist air.
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