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Slowly Less Smoky

AIR QUALITY (PM2.5 AQI as of 12:00AM)
UNHEALTHY FOR ALL AREAS

Finally some relief from the smoke? The blocking pattern that has kept the smoke in place is finally breaking down. High pressure will drift to the east with a large trough of low pressure approaching from the west. Flow aloft will turn more southwesterly, which should clear out the high smoke as we had through the weekend. Unfortunately, smoke will remain trapped in our marine layer and even with increasing northwesterly surface winds will transport additional smoke into the area over the next few days. Still, as more smoke is transported away from us, we’ll slowly clean out in the low levels too as we head into next week. A stronger, more progressive system next week should finally fully clear our skies. In the meantime, the slightly cool weather will become more seasonable out of the weekend and we’ll see the daily cycle of low clouds/fog on the coast. By the end of next week, it is slightly possible the weather system could bring some precipitation to California. Though it looks much more likely farther to our north.

*DENSE FOG ADVISORY*

… in effect for coastal Monterey & Santa Cruz Counties through 9AM.

Visibility one quarter mile or less in dense fog.

Hazardous driving conditions due to low visibility.

Lowest visibility will be along the immediate coast, including highway

If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.

Overnight: Fog/smog for coastal cities and nearby valleys. Very hazy elsewhere. Lows in the low 50s for most areas with a few southern inland valleys dipping into the 40s.

Saturday: Patchy low clouds near the coast and widespread smoke. Slightly thinner smoke aloft, which should let a little more sunshine filter down. Air quality will remain unhealthy in the low levels. Expect coastal highs in the 60s to around 70ºF with 70s to around 90ºF inland. A bit breezy for inland valleys in the afternoon.

Sunday: Patchy low clouds near the coast and widespread smoke. Smoke will continue to thin out, however. Air quality will remain reduced. Expect coastal highs in the 60s to around 70ºF with 70s to around 90ºF inland. A bit breezy for inland valleys in the afternoon.

Extended: Slightly warmer, sunnier weather expected for most of next week. Some smoke will likely linger—seen more on the form of haze, but it will be better than recent days. A weather system near the end of the week will increase the chance of coastal drizzle and clouds. We’ll also be watching for potential rain chances, though it seems like a very small chance at this time.

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This week's normal temperatures:

--COASTAL CITIES--
LOW: 54ºF
HIGH: 72ºF

--INLAND CITIES--
LOW: 50ºF
HIGH: 86ºF

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-The outlook from the Climate Prediction Center for September 19th – 25th calls for the likelihood of ABOVE normal temperatures and near normal precipitation. Note: Little to no precipitation typically falls this time of year.

-El Niño/La Niña STATUS: Neutral
-Forecast into Winter: La Niña Watch

-Area drought status: 
Moderate drought for much of Santa Cruz & Santa Clara Counties, Abnormally dry on the east shore of the bay into San Benito County. No drought classification for much of Monterey County outside of the Gabilan Range.

Article Topic Follows: Local Forecast

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Dann Cianca

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

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