Updated: Tuesday, September 27, 2016 07:19 AM
Another warm day is on tap for today as high pressure makes its last stand until at least the middle of next week. A weather system which will drop out of the Gulf of Alaska later this week will bring a return to autumn weather by this weekend.
This morning is seeing the initial effects of the Gulf of Alaska weather system as it begins to shift high pressure to the east. Temperatures this morning are running about 4° to 5° cooler than 24 hours ago. The low temperature so far this morning has been 66°. Winds overnight have been light and variable, with a peak gust of 4 mph. Humidity levels are a bit elevated compared to yesterday morning which is good for the fire danger, and a sign that the dry offshore flow is abating. There is some smoke in the air this morning as cooler and heavier air has the Tobin Fire smoke at ground level. As the sun rises, heating should lift the smoke above ground level.
Today should see temperatures about the same as yesterday's readings, with an afternoon high temperature near 90° under mostly sunny skies. Today should be the last time we see temperatures in the 90°s for a while. The low tonight is forecast to drop to about 66°. Winds this afternoon should be southwesterly up to 6 mph, becoming light and variable tonight.
Wednesday should see continued fair skies and warm temperatures, but with slightly cooler temperatures. The afternoon high is predicted to reach about 88°, and the low Wednesday night near 62°. Winds should be southerly up to 7 mph during the afternoon hours, but could continue into Wednesday night up to 7 mph.
Thursday should see continued fair weather and cooler temperatures. The afternoon high is forecast to drop back to about 81°. Winds are expected to pick up out of the south during the afternoon, possibly reaching as high as 13 mph. Some gusty southerly winds could continue into Thursday night.
Friday into the weekend should see continued cooling, and even a slight 5% chance of rain showers by Friday afternoon into Saturday night as the first in a series of shortwaves pass through the region. Those odds rise to a 10% chance by early Sunday morning as another shortwave is predicted to pass through Northern California. This may increase the the odds of precipitation to a 15% chance throughout Sunday. The low Saturday morning is only expected to be 44°, and an afternoon high temperature by Sunday predicted to reach 65°.
Monday currently looks to see the best shot at precipitation in Magalia where odds jump up to a 20% chance for much of the daylight hours. Those odds are expected to drop back to a 15% chance by about late Monday night into early Tuesday morning. Snow levels may drop to near 7000' during this timeframe. Have a great Tuesday. Bob