The National Weather Service reported an avalanche advisory at 5:49 p.m. on Friday in effect until Sunday at 6 p.m. for Central Colorado.

The NWS says to prepare for, “It is very easy for people to trigger large and deadly avalanches through the weekend.”

“Very large and dangerous avalanches will be easy to trigger,” adds the NWS.

The full list of affected locations includes:

• Gore and Elk Mountains/Central Mountain Valleys

• South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder counties above 9,000 feet

• South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park counties above 9,000 feet

• Western Mosquito Range/East Lake County above 11,000 ft

• Eastern Sawatch Mountains above 11,000 ft

• Western Chaffee County between 9,000 and 11,000 ft

How to stay safe according to the NWS

Know the three factors required for an avalanche:

• Slope: Avalanche generally occur on slopes steeper than 30 degrees

• Snowpack: Recent avalanches, shooting cracks, and “whumpfing” are signs of unstable snow

• Trigger: Sometimes it doesn’t take much to tip the balance; people, new snow, and wind are common triggers

Determine if you are on or below slopes that can avalanche:

• Find out if the snow is stable

• Get the advisory: Refer to your local avalanche center for current snowpack conditions

• Get the gear and learn how to use it

Have these three avalanche safety essentials in your pack:

• Transceiver: So you can be found if covered by the snow

• Shovel: So you can dig out your partner

• Probe: So you can locate someone who has been covered by the snow

Avalanche survival rates plummet after about 15 minutes for victims who do not die from trauma. Saving your partner is up to you! Practicing realistic scenarios beforehand is essential.

Source: The National Weather Service