Weather Alert in California

Recent Locations: Brunsville, IA   Litchfield, NH   Grand Terrace, CA  
Current Alerts for Grand Terrace, CA: Wind Advisory Winter Storm Warning

Hydrologic Outlook issued February 19 at 1:26PM PST by NWS Medford OR

AREAS AFFECTED: Siskiyou, CA; Coos, OR; Curry, OR; Josephine, OR

DESCRIPTION: ESFMFR A moderate atmospheric river will likely bring periods of moderate to heavy rainfall later this weekend into early next week. The first frontal system is forecast to arrive late Saturday night into Sunday with multiple waves of precipitation continuing Sunday night through Tuesday morning. Preliminary estimates are showing widespread amounts of 4 to 6 inches along the coast with locally 8 inches in the favored coast ranges of Curry County. Amounts of 3 to 5 inches are possible in the Mount Shasta region and also other favored areas of western Siskiyou County. Small streams and creeks are likely to rise rapidly during this event with nuisance flooding and ponding of water on roadways during periods of heavy rain. Significant rises on main stem rivers and flashier creeks are also expected. Given that rivers are still running fairly low for this time of year, river flooding potential is a bit lower than usual, but there is at least a low probability of some flooding, especially in the Coquille Basin. While the exact scenario for the heavy rainfall and potential flooding remains uncertain, we will continue to monitor the forecasts and update accordingly. Flood Watches may be issued by the National Weather Service if this situation worsens.

INSTRUCTION: N/A

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Weather Topic: What is Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds

Weather Topic: What is Freezing Rain?

Home - Education - Precipitation - Freezing Rain

Freezing Rain Next Topic: Graupel

Freezing rain is a condition where precipitation which has fallen in the form of water droplets reaches temperatures which are below freezing and freezes upon coming into contact with surface objects. The result of this precipitation is a glaze of ice which can be damaging to plants and man-made structures. A severe onset of freezing rain which results in a very thick glaze of ice is known as an ice storm.

Next Topic: Graupel

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