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Air Mass Change


As the sub-tropical low that has been hanging out near the region moves out overnight, high pressure will begin to build in from the west. Northwesterly surface flow will push out the sub-tropical air mass, replacing it with a cooler push of air. Offshore flow will begin to develop as the ridge builds starting Tuesday, which will modify the newer air mass, drying it out. We’ll also see a steady warming trend as we head into the weekend. With the dryer air in place, you can expect colder nights, however! No additional rain expected for the next week or two.

Air Quality: GOOD to MODERATE.

Decreasing mid to high level clouds as the low moves out. However, clearing skies will likely lead to low cloud & fog development on the coast and in the valleys. Cooler, with lows in the 40s for most areas. A few inland spots may dip into the 30s.
Tuesday: Low clouds & fog on the coast early with mostly sunny skies elsewhere. Patchy low clouds may linger on the south/east sides of the bay during the day. Cooler, with highs in the upper 50s to mid 60s.

Wednesday: Patchy fog and chilly in the morning, then mostly sunny and seasonable with highs in the 60s for most areas. Northeasterly offshore winds pick up in the hills late.

Extended: Highs will continue to warm into the weekend and will end up 5-8ºF above normal for most areas with plentiful sunshine expect. Lows will be cooler—perhaps a bit cooler than normal, especially on Thursday & Friday.

This week's normal temperatures:

LOW: 43ºF
HIGH: 62ºF

LOW: 38ºF
HIGH: 62ºF


-The outlook from the Climate Prediction Center for January 25th – 31st calls for the likelihood of ABOVE normal temperatures and near normal precipitation.
- El Niño/La Niña STATUS: La Niña Advisory
- Forecast into Winter: Weak La Niña

-Area drought status: “
Severe Drought” for most of the viewing area southern Monterey County now reduced to “Moderate Drought”

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Dann Cianca

Dann Cianca is the chief meteorologist at KION News Channel 5/46.


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