Forecast Details for McKinleyville, CA

Recent Locations: McKinleyville, CA  
Current Alerts for McKinleyville, CA: Winter Weather Advisory
Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Friday: Rain likely, mainly after 5pm. Increasing clouds, with a high near 61. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night: Rain. The rain could be heavy at times. Low around 39. Breezy, with a south wind 5 to 10 mph becoming west northwest 11 to 16 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Saturday: Rain before 11am, then scattered showers and thunderstorms after 11am. High near 51. North northwest wind 5 to 9 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night: Isolated showers and thunderstorms before 8pm, then isolated showers between 8pm and 11pm. Mostly cloudy, with a low around 38. North wind 6 to 10 mph. Chance of precipitation is 20%.
Sunday: Mostly sunny, with a high near 55. East northeast wind 5 to 8 mph becoming west southwest in the morning.
Sunday Night: Partly cloudy, with a low around 40.
Monday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 56.
Monday Night: Mostly cloudy, with a low around 40.
Tuesday: Sunny, with a high near 57.
Tuesday Night: Mostly clear, with a low around 40. Breezy.
Wednesday: Sunny, with a high near 60. Breezy.
Wednesday Night: Mostly clear, with a low around 42. Breezy.
Thursday: Sunny, with a high near 65.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Condensation Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds