
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 >

SURFACE | UPPER AIR | CAMERAS | WINTER DATA | ROAD CONDITIONS
| Upper Air Data |
|
Raw Data |
||||||
| Grand Junction | Denver | Salt Lake City | Albuquerque | Riverton | Flagstaff | Tucson |
| Mandatory | Mandatory | Mandatory | Mandatory | Mandatory | Mandatory | Mandatory |
| Significant | Significant | Significant | Significant | Significant | Significant | Significant |
| Freezing | Freezing | Freezing | Freezing | Freezing | Freezing | Freezing |
| Above 100mb | Above 100mb | Above 100mb | Above 100mb | Above 100mb | Above 100mb | Above 100mb |
| Summary | Summary | Summary | Summary | Summary | Summary | Summary |
| Skew-T Diagrams | ||||||
| Grand Junction | Denver | Salt Lake City | Albuquerque | Riverton | Flagstaff | Tucson |
| NCAR | NCAR | NCAR | NCAR | NCAR | NCAR | NCAR |
| DuPage | DuPage | DuPage | DuPage | DuPage | DuPage | DuPage |
| Soundings also available at: SPC | NOAA/FSL | U of Wyoming | College of DuPage | Ohio State | ||||||
| Profilers | ||||||
| Aztec, NM | Granada, CO | Platteville-1, CO | Platteville-2, CO | Medicine Bow, WY | White Sands, NM | NWS NPN |
| AZCN5 | GDAC2 | PLTCO | PLTC2 | MBWW4 | WSMN5 | Other Sites |
| Charts | ||||||
| 925 mb | 850 mb | 700 mb | 500 mb | 300 mb | 250 mb | |
| SPC | 12z | 00z | 12z | 00z | 12z | 00z | 12z | 00z | 12z | 00z | |
| NCAR / RAP | Raw | Con | Raw | Con | Raw | Con | Raw | Con | Raw | Con | |
| U of Wyoming | Raw | Con | Raw | Con | Raw | Con | Raw | Con | Raw | Con | Raw | Con |
| DuPage | Raw | w/P | Raw | w/P | Raw | w/P | Raw | w/P | Raw | w/P | Raw | w/P |
| Con = Contoured Chart w/P = with Profiler data | ||||||
| Additional Information & Terms |
Upper-Air Program Virtual Tour From the Reno, NV National Weather Service Weather Forecast Office
National Upper Air page
NWS Acronyms