Forecast Details for Ontonagon, MI

Recent Locations: Ontonagon, MI  
Overnight: Cloudy, with a low around 36. Northeast wind around 15 mph, with gusts as high as 20 mph.
Sunday: Cloudy, with a high near 40. Northeast wind around 15 mph, with gusts as high as 25 mph.
Sunday Night: Showers, mainly after 1am. Low around 39. East wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday: Showers, mainly before noon. High near 52. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 40. West wind 5 to 15 mph. Chance of precipitation is 60%.
Tuesday: Partly sunny, with a high near 56.
Tuesday Night: Showers. Low around 45. Chance of precipitation is 80%.
Wednesday: Mostly sunny, with a high near 62. Breezy.
Wednesday Night: Mostly cloudy, with a low around 44.
Thursday: A chance of showers after 2pm. Partly sunny, with a high near 56.
Thursday Night: A chance of showers. Mostly cloudy, with a low around 40.
Friday: A chance of showers. Partly sunny, with a high near 51.
Friday Night: A chance of showers. Mostly cloudy, with a low around 38.
Saturday: A chance of showers. Mostly cloudy, with a high near 49.

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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)

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North American Water Vapor Map

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds