Skip Navigation Links weather.gov 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
The Weather Prediction Center

 
 

 

Follow the Weather Prediction Center on Facebook Follow the Weather Prediction Center on Twitter
NCEP Quarterly Newsletter
WPC Home
Analyses and Forecasts
   National High & Low
   WPC Discussions
   Surface Analysis
   Days ½-2½ CONUS
   Days 3-7 CONUS
   Days 4-8 Alaska
   QPF
   PQPF
   Flood Outlook
   Winter Weather
   Storm Summaries
   Heat Index
   Tropical Products
   Daily Weather Map
   GIS Products
Current Watches/
Warnings

Satellite and Radar Imagery
  GOES-East Satellite
  GOES-West Satellite
  National Radar
Product Archive
WPC Verification
   QPF
   Medium Range
   Model Diagnostics
   Event Reviews
   Winter Weather
International Desks
Development and Training
   Development
WPC Overview
   About the WPC
   Staff
   WPC History
   Other Sites
   FAQs
Meteorological Calculators
Contact Us
   About Our Site
 
USA.gov is the U.S. Government's official web portal to all federal, state, and local government web resources and services.
 
Winter Weather Forecast Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1845Z May 07, 2023)
 
Version Selection
Versions back from latest:  0   1   2   3   4   5   6   7   8   9   10   
 
Abbreviations and acronyms used in this product
 
Geographic Boundaries -  Map 1: Color  Black/White       Map 2: Color  Black/White


Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
245 PM EDT Sun May 07 2023

Valid 00Z Mon May 08 2023 - 00Z Thu May 11 2023

...Northern California to the Northern Rockies....
Days 1-3...
A series of shortwaves will continue to move through a broader
trough, supporting periods of organized precipitation, including
high-elevation snow, across the region.  This includes a compact,
deep upper-low that is forecast to move inland near the
Oregon-California border Monday morning.  For the Klamath
Mountains, Shasta Cascade, and the southern Oregon Cascade
regions, localized heavy snows are possible -- mainly for areas
above 4500 ft -- as the system moves across the region on Monday. 
Elsewhere, mostly light amounts are forecast across the higher
elevations of the region, with widespread heavy amounts not
expected.

The probability of ice accumulations greater than 0.25 inch is
less than 10 percent.

Pereira