One last large snowstorm is sweeping across Colorado from Friday afternoon to Saturday afternoon, bringing the potential of 18-30″ of snow with it to the state’s high country and ski areas.

Colorado’s snowpack is still below the median average by 15 percentage points with the median peak-day occurring on Tuesday.

Spring conditions to last for at least 10 or 11 days heading into mid-April.

Recap:

Snow began falling across the Front Range mountains around 9:30 a.m. Thursday. However, snow had already fallen for a few hours in the southern mountains, with places like Telluride reporting a few inches by first chairs.

WATCH: 85th Anniversary Highlights from Wolf Creek:

Snow continued all day Thursday. Snow accumulations for Friday’s first chairs in the northern mountains are between 1-4 inches, in the central mountains between 1-10 inches, and in the southern mountains between 1-2 inches.

Colorado snowpack:

Colorado’s statewide snowpack is at 85% of the median average for April 4 and 13.1 inches of snow water equivalent, which is 2.3 inches below the median average of 15.4 inches.

Forecast:

•  Snow will end early Friday morning, then redevelop Friday afternoon, especially across the southern (Wolf Creek), southeastern (Sangre de Cristo), and eastern mountains (Echo, Eldora, Loveland, A-Basin, and Winter Park).

Snow will be heavy at times on Friday afternoon through Saturday late morning.

Additional snowfall accumulations for the northern mountains range between 2-4 inches with the highest amounts east of the Continental Divide, in the central mountains between 2-5 inches with the highest amounts east of the Continental Divide, and the southern mountains between 4-7 inches in the western and eastern San Juan Mountains and between 12-18 inches in southeastern mountains with the highest amounts in the Sangre de Cristo and Wet Mountains.

• Lingering snow showers in the southern mountains can be expected on Saturday night, giving a bit more softness to the slopes at Telluride, Purgatory, Wolf Creek, and Silverton.

• Sunday, skies will clear out and temperatures will return to warmer, with highs forecast to be in the 30s at most base areas and upper 20s at the summits.

Long-term forecast:

• Spring conditions will be the story in the high country for the next 10 days at least.

All three mountain zones, especially the southern mountains, will see melting each day as highs reach into the 40s and 50s. A freeze/thaw cycle will most likely happen each day as well, as lows will dip into the 20s each night.

Storms will track north of Colorado mostly during this time frame, with a slight chance of unsettled weather passing through northern Colorado on Tuesday and then again around Tuesday, April 16, and Wednesday, April 17.

Today’s 24-hour snow totals for Colorado ski resorts:

Arapahoe Basin – 2″

Aspen Highlands – 1″

Aspen Mountain – 0″

Beaver Creek – 2″

Breckenridge – 4″

Buttermilk – 0″

Cooper – 1″

Copper Mountain – 1″

Crested Butte – 4″

Echo Mountain – 2″

Eldora Mountain – 4″

Granby Ranch – Closed for the season

Hesperus – Closed for the season

Howelsen Hill – Closed for the season

Kendall Mountain – Closed for the season

Keystone – 2″

Loveland – 4″

Monarch – 3″

Powderhorn – 10″

Purgatory – 0″

Silverton – 2″

Snowmass – 1″

Steamboat – 3″

Sunlight – 1″

Telluride – 0″

Vail – 3″

Winter Park – 2″

Wolf Creek – 1″