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Ski Cooper (Base: 10,500', Top: 11,700')

6-day Forecast Discussion Updated for Monday, May 12, 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON...

OVERALL SITUATION TO
DAY -//> Winds increase on the upper ridges mainly, with increasing cloudiness as a fairly strong late season low pressure system approaches from the northwest US (moving through Utah with mountain snow now). Temperatures look mild today, then colder air moves in tonight. Showers (rain/ snow mix for most) and thunderstorms develop after noon as the low pressure system approaches and triggers increased instability. Snow showers develop this evening and mainly tonight as colder air blows in and clouds lower with the storm, now headed south toward Arizona/ New Mexico. Snow totals could be pretty heavy, but we are staying on the moderate side in the forecast.

Tuesday -//> Colder and cloudy with scattered snow showers as low pressure drops through, though most energy passes to the west through Eastern Utah mainly (then into AZ/ NM). Light additional snowfall is expected. Clouds and snow clear out late day/ evening.

Wednesday through Friday -//> Low pressure scoots out and we are pinned between an extremely strong and large summer-like high pressure ridge over California/ Nevada, and strong low pressure centered over the Northern Great lakes/ Ontario Canada. This spells northwest winds and below average temperatures for Colorado, with some clouds and light snow showers later Wednesday, all Thursday, and early Friday (then clearing out).

Saturday and Sunday -//> Strong high pressure ridging moves overhead, with sunny skies and warm temperatures expected. CM

Monday
May 12, 2008

Mostly Cloudy with Isolated Storms

Hi 38°f / 3°c (base)
Lo 20°f / -7°c (base)

Sky Condition:
Mostly Cloudy with Isolated Storms

Precipitation:
Slight Chance (20%) of rain showers (0.254 mm. | 0.01 in.)

Snow Potential
Expecting 0.12 inches

Wind:
WSW at up to 25 mph.

Tuesday
May 13, 2008

Light Snow Showers

Hi 42°f / 6°c (base)
Lo 22°f / -6°c (base)

Sky Condition:
Light Snow Showers

Precipitation:
Snow definite (80%) (16.002 cm. | 6.3 in.)

Snow Potential
Expecting 6.3 inches

Wind:
NNW at up to 15 mph.

Wednesday
May 14, 2008

Chance of Light Snow Showers

Hi 42°f / 6°c (base)
Lo 22°f / -6°c (base)

Sky Condition:
Chance of Light Snow Showers

Precipitation:
Slight Chance (20%) of snow

Snow Potential

Wind:
NW at up to 15 mph.

Thursday
May 15, 2008

Slight Chance of Light Snow Showers

Hi 38°f / 3°c (base)
Lo 22°f / -6°c (base)

Sky Condition:
Slight Chance of Light Snow Showers

Precipitation:
30% Chance of snow

Snow Potential

Wind:
ENE at up to 15 mph.

Friday
May 16, 2008

Slight Chance of Light Snow Showers

Hi 45°f / 7°c (base)
Lo 25°f / -4°c (base)

Sky Condition:
Slight Chance of Light Snow Showers

Precipitation:
Slight Chance (20%) of snow

Snow Potential

Wind:
ENE at up to 5 mph.

Saturday
May 17, 2008

Partly Cloudy

Hi 48°f / 9°c (base)
Lo 26°f / -3°c (base)

Sky Condition:
Partly Cloudy

Precipitation:
None expected

Snow Potential

Wind:
NNW at up to 10 mph.

Long range forecast / discussion...May 18 to 21

--We could see a weak disturbance break up the sunny weather next Tuesday (20th), otherwise sunny and warm weather continues through the following Saturday (24th) under strong high pressure ridging aloft. As more low pressure (weaker) affects the Northwest US (around the 24th/ 25th), the orientation of the wind flow aloft may allow some subtropical moisture to feed up from the south for daily thunderstorms in late May. CM



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