Heavy Rain and Flash Flooding Concerns in California; Heavy Snow in the Sierra

An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >

Choose from the AIRMET types and regions below, or go to the Graphical AIRMET page at AWC.

IFR US	Turbulence US	Icing US	Freezing Level US
IFR PacNW	Turbulence PacNW	Icing PacNW	Freezing Level PacNW

Instrument Flight Rules (IFR) or Mountain Obscuration - AIRMET SIERRA (12-hour period)

Ceilings less than 1000 feet and/or visibility less than 3 miles affecting over 50% of the area at one time.
Extensive mountain obscuration

Turbulence - AIRMET TANGO (12-hour period)

Moderate Turbulence HIGH level (>FL180)
Moderate Turbulence LOW level (sfc-FL180)
Low Level Wind Shear (LLWS) below 2000 feet AGL
Sustained surface winds of 30 knots or more at the surface

Icing - AIRMET ZULU (12-hour period)

Moderate Icing
Lowest Freezing Levels
Multiple Freezing Levels

Please note that SIGMETs are included in the separate, lower-right graphic above.

9-Hour (Smear) AIRMETs for Turbulence, Icing, IFR, Mountain Obscuration

ZSE RSS Feed

Heavy Rain and Flash Flooding Concerns in California; Heavy Snow in the Sierra

ZSE AIRMETs

Choose from the AIRMET types and regions below, or go to the Graphical AIRMET page at AWC.