National Weather Service United States Department of Commerce

Rainfall and mountain snow will continue across the western U.S. into Monday

Heavy precipitation along the west coast will persist with a focus along the Coastal Ranges and Cascades. While not nearly as impressive as recent days, the forecast suggests another 1 to 3 inches of rainfall is possible across this region. Farther inland, moderate to heavy snow is likely over the Wasatch and Colorado Rockies with 1 to 2 foot amounts possible through Monday.
Read More...

Last Update: 353 PM HST SUN DEC 21 2014

View Nearby Observations

Alenuihaha Channel

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM HST TUESDAY...



  • SynopsisA SHEAR LINE WILL MOVE OVER KAUAI TONIGHT THEN STALL AND WEAKEN NEAR MAUI AND THE BIG ISLAND MONDAY AND TUESDAY. A REMNANT TROUGH WILL LINGER NEAR THE BIG ISLAND WEDNESDAY THROUGH FRIDAY. HIGH PRESSURE FOLLOWING BEHIND THE FRONT WILL WEAKEN THURSDAY INTO FRIDAY.
  • Tonight East winds 10 kt. Wind waves 3 ft. Northwest swell 13 ft. Isolated showers after midnight.
  • Monday Northeast winds 15 kt. Wind waves 5 ft. Northwest swell 14 ft. Isolated showers.
  • Monday Night Northeast winds 20 kt. Wind waves 7 ft. Northwest swell 12 ft. Isolated showers in the evening...then scattered showers and isolated thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight.
  • Tuesday Northeast winds to 25 kt. Wind waves 10 ft. Northwest swell 11 ft. Isolated thunderstorms in the morning. Scattered showers through the day.
  • Tuesday Night Northeast gales to 35 kt. Wind waves 17 ft. Northwest swell 8 ft. Scattered showers and slight chance of thunderstorms.
  • Wednesday Northeast winds to 30 kt. Wind waves 16 ft. Northwest swell 6 ft. Isolated showers through the day.
  • Wednesday Night Northeast winds to 25 kt. Wind waves 12 ft. Northwest swell 5 ft. Isolated showers.
  • Thursday Northeast winds to 25 kt. Wind waves 10 to 12 ft. Northwest swell 3 to 4 ft. Isolated showers.
  • Friday Northeast winds 20 kt. Wind waves 8 to 10 ft. Northwest swell 3 to 4 ft. Isolated showers.



Additional Forecasts and Information

Zone Area Forecast for Alenuihaha Channel
Mobile Version