Dangerous Cold Weather for Most of the Country; Rare Winter Storm for the South; Fire Weather Concerns for Southern California

Arctic air will filter south and east through early this week. As this cold air moves across the South, a rare winter storm is forecast to develop from Texas, Gulf Coast States into the Southeast through early this week. Several new daily record low temperatures are expected, including new record-low maximum temperatures. For Southern California, fire weather concerns increase this week. Read More >

RADAR

Satellite

Link to Pan and Zoom RADAR Imagery

Latest RADAR imagery (KMAX--Mt Ashland)

KBHX--Eureka, CA

KBBX -- Beale AFB, CA

KRTX--Portland, OR

Click to enlarge national RADAR image

Pan/Zoom RADAR

Slower loading but features more detail and capabilities.

Helpful hints when viewing this "lite" RADAR imagery

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Other "lite images" click here.

Ground Clutter:

Image is what it can look like when there is no precipitation but significant ground clutter. The grey and green areas won't move much.

Actual Precipitation:

Image below shows precipitation in the area. Green areas change/move like you'd expect with areas of rain/snow.

	Geocolor Good for viewing smoke, general cloud cover, snowpack Can use daytime or nighttime Faster loading/less detailed image here.
	Infrared with Lightning Good indicator for height of clouds Colder/higher cloud tops are blue Can use daytime or nighttime Lightning "flashes" indicate include in-cloud, cloud to cloud, or cloud to ground flashes.
	Fire Temperature Good indicator for wildfire location and movement Brighter reds indicate hotter fires
	Day Cloud Phase Distinction Helps determine if clouds include ice or not Clouds transitioning from white shades to green and yellow shades indicate stronger showers
	Water Vapor Imagery Used for tracking winds and moisture in the middle troposphere, as low as around 18,000 feet, or 500mb. Surface features are usually not apparent in this band.