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Avalanche Event and Forecast Map

Choose layers to show:






This map will display events which have a latitude and longitude assigned. There may be events from the time period selected which cannot be displayed due to the lack of a point to assign them to. This happens when observations are reported, but the information is not complete enough to determine their exact location.

Weather

DatePeriodNameAffiliationLocationZoneSkyPrecipitationIntensityRain Line

Warning Signs

Blowing Snow
DatePeriodObserverAreaZoneDepth
(inches)
ExtentElevationAspect
Shooting Cracks
DatePeriodObserverAreaZoneCrackingElevAspect
Whumpfing
DatePeriodObserverAreaZoneWhumpfingElevAspect

Problem Layer

DateObserverAreaZoneTypeDepth
(inches)
ElevAspect

Hazard Assessment & Comments

DateObserverAreaZoneBulletinAgreeComments

General

The observations selected display in all of the areas below. You can open and close each area if you want to only see some of the information.

The date, observer, period, area, zone and location are repeated in each section.

All depths are in inches.

Wind Depths

  • Large (> than 18 inches)
  • Medium (6-18 inches)
  • Small (2 to 6 inches)
  • None
  • No Obs: No Observations not possible

Blowing Snow Extent

  • near - drifts along ridges
  • middle - drifts extended from ridges
  • far - drifts beyond ridges - extensive

Problem Layer Types

  • RC - rain crust
  • SC - sun crust
  • MFC = melt/freeze crust
  • RmC - rime crust
  • RRC - radiation recrystallization
  • SF - surface hoar
  • NSF - near surface faceted snow
  • DH - depth hoar
  • DB - density break
  • HC = hardness change

Blowing snow depths

  • Large (> than 18 inches)
  • Medium (6-18 inches)
  • Small (2 to 6 inches)
  • None
  • No Obs: No Observations not possible

Blowing snow extent

  • near - drifts along ridges
  • middle - drifts extended from ridges
  • far - drifts beyond ridges - extensive

Enter Observations

Snotel Links

Wind Station Links

Weather Forecast Resources

Avalanche Types:

All depths are in inches.

Avalanche Size - Relative to Path:

Avalanche Size - Destructive Force

Triggers:

Avalanche Event Observation
Weather/Snow Observation
Snowpit Profile