Weather Alert in Idaho
Avalanche Advisory issued February 20 at 5:27AM MST by NWS Pocatello ID
AREAS AFFECTED: Bear River Range
DESCRIPTION: SABPIH THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE FOREST SERVICE UTAH AVALANCHE CENTER. THE FOREST SERVICE UTAH AVALANCHE CENTER HAS ISSUED A SPECIAL AVALANCHE BULLETIN FOR THE FOLLOWING AREAS: * WHAT...DANGEROUS AVALANCHE CONDITIONS ARE POSSIBLE ACROSS THE BEAR RIVER RANGE AND SURROUNDING MOUNTAINS OF NORTHERN UTAH THIS WEEKEND. THIS WEEK'S HEAVY SNOWFALL AND STRONG WINDS OVERLOADED PREEXISTING WEAK LAYERS, CREATING A HIGH AVALANCHE DANGER. WITH IMPROVING WEATHER MOVING IN FOR THE WEEKEND, AVALANCHE ACCIDENTS ARE LIKELY IN THE BACKCOUNTRY. THERE HAVE ALREADY BEEN TWO AVALANCHE FATALITIES THIS WEEK, AS WELL AS SEVERAL CLOSE CALLS AND NUMEROUS BACKCOUNTRY AVALANCHES REPORTED. * WHERE...BEAR RIVER RANGE AND SURROUNDING MOUNTAINS OF NORTHERN UTAH. * WHEN...THROUGH 6 AM MST MONDAY. * IMPACTS...DANGEROUS AVALANCHE CONDITIONS EXIST IN THE AND WILL PERSIST THROUGH THE WEEKEND.
INSTRUCTION: NATURAL AVALANCHES ARE POSSIBLE, AND PEOPLE ARE LIKELY TO TRIGGER AVALANCHES ON SLOPES STEEPER THAN 30 DEGREES. DANGEROUS AND DEADLY AVALANCHES CAN BE TRIGGERED REMOTELY FROM A DISTANCE OR FROM BELOW. PEOPLE LEAVING SKI AREA BOUNDARIES ARE ENTERING THE BACKCOUNTRY WHERE THE SAME DANGEROUS AVALANCHE CONDITIONS EXIST. CONSULT WWW.UTAHAVALANCHECENTER.ORG OR WWW.AVALANCHE.ORG FOR MORE DETAILED INFORMATION. SIMILAR AVALANCHE DANGER MAY EXIST AT LOCATIONS OUTSIDE THE COVERAGE AREA OF THIS OR ANY AVALANCHE CENTER.
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Weather Topic: What is Freezing Rain?
Home - Education - Precipitation - Freezing Rain
Next Topic: Graupel
Freezing rain is a condition where precipitation which has fallen in the form of
water droplets reaches temperatures which are below freezing and freezes upon
coming into contact
with surface objects. The result of this precipitation is a glaze of ice which
can be damaging to plants and man-made structures. A severe onset of freezing
rain which results in a very thick glaze of ice is known as an ice storm.
Next Topic: Graupel
Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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