STEVENS PASS MOUNTAIN WEATHER

4/13/2011 Weather


24HR FORECAST starting at NOON today

Water - .25  Snow - 2-4
Freezing levels -  4000'  falling to 2500'
Winds - 0-15 WSW


General Discussion: Radar imagery shows a weak cold front moving through the PNW this morning. This will bring snow to the mountains tonight and tomorrow.

Long-term: Westerly flow will continue to bring a threat of snow to the mountains through the weekend. These systems are not very organized or packing much energy, therefore, just light to moderate snow showers will be likely.


A climate note from the National weather service: “CLIMATE NOTE...THERE HAS NEVER BEEN AN APRIL IN SEATTLE WITH ZERO DAYS OF HIGHS IN THE 60S INCLUDING THE FEDERAL BUILDING RECORDS WHICH GO BACK TO 1891. THE RECORD FOR THE LEAST AMOUNT OF DAYS WITH HIGHS 60 OR GREATER FOR THE MONTH OF APRIL IS 2 DAYS SET IN 1954 AND 1970”. FELTON I think what he is trying to say is that this could go down as the coolest April on record.


TRENDS AND TIMING
Precipitation: Light snow will continue to fall through the night. Snow will increase during the day tomorrow.

Freezing levels: Freezing levels will fall in the wake of the cold front. Freezing levels are expected to remain below pass level for the remainder of the week.

Winds: SW flow aloft will dominate the main wind pattern for the next few days. Short period of east flow will occur from time to time as these fronts move inland. Gusty ridge top winds will be possible as the front move through.