Bulletin d’avalanche

Mount Shasta

Mount Shasta Avalanche Center
Voir sur la carte

Danger d’avalanche

Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Open full map
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

A quick hitting storm passed through the area yesterday, bringing 3–7 inches of dry snow above 6,000 feet. Reactive cornices and wind slabs were observed along easterly facing slopes near and above treeline. More of this type of action is possible today. Overall, low avalanche danger will prevail, but be cautious as you ascend into windy locales. Remember that wind blowing snow is a red flag of avalanche danger.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Mount Shasta is no stranger to wind, and today’s northerly flow near and above treeline will likely move snow around—a red flag of avalanche danger. Even under blue skies, wind slab hazards can persist.

    Wind slabs, cornices, and small wind lips were observed near treeline yesterday, all reactive to triggering and easily entraining fresh, dry snow on slopes below. No large avalanches were seen, but small test slopes serve as key indicators of potential hazards in steeper, more consequential terrain.  

    Watch for wind blowing snow and take note of where it's headed. Look for cracking or collapsing in drifted snow. These are clear warning signs of the problem. When in doubt, stick to windward slopes or sheltered terrain. 

    Photo: Eric Falconer

    Cornices and wind lips like this were touchy yesterday near treeline, 2.19.25. More of this today is possible.

Avalanche Discussion

Wind associated avalanche hazard remains possible today. Loose, dry snow is available for wind transport. Avalanche danger isn’t limited to snowfall—northerly wind may rapidly load leeward terrain. Watch for blowing snow and where it's accumulating.Snow on the ground:  Mount Shasta, near treeline - 146" / Castle Lake - 109"  / Mount Eddy (Wagon Bowl) - 102" / Medicine Lake - 92"

Mount Shasta City Precipitation:

  • Month to date - Observed: 7.42" / Normal: 4.21" = 176%
  • Wet Season (Since Oct 1): 26.12" / 22.74" = 114%
  • Year (Since Jan 1): 9.27" / 10.50" = 88%

Access Updates:

  • OPEN: Everitt Memorial Highway, Snowman's Hill, Mt Shasta Ski Park & Mt Shasta Nordic Center, Pilgrim Creek Sno-Park (motorized use), Deer Mountain Sno-Park (motorized use)
  • CLOSED: Castle Lake road at gate

Upcoming Events:

 

Régions couvertes