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039 
Fpcn11 cwvr 080230
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 7 PM PST Thursday 7 December 1995 for
tonight Friday and Saturday.
The next scheduled forecast will be issued at 5 AM Friday.

Synopsis for coastal BC.
  An arctic cold front will move south of British Columbia tonight
leaving the entire province under a dome of cold arctic air.
This air is rushing out of the interior onto the coast and winds have
risen to 100 km/h through some inlets on the central coast.
Strong winds to 70 km/h are forecast over portions of the south coast
tonight.  An arctic outflow warning remains in effect.  Only a few
flurries accompany the front.  However there is potential for
significant snowfall amounts later tonight on the east side of
Vancouver Island as the cold air picks up moisture from georgia
strait.  Snowfall amounts will be quite variable ranging from a few
centimetres to 15 centimetres in more exposed localities.  A snowfall
warning is in effect for east Vancouver Island and greater Victoria.
On Friday conditions are expected to be generally sunny and cold as
arctic air covers the coast.  Temperatures will rise a few degrees on
Saturday as a weak system approaches from the southwest bringing an
increase in cloud.

Freezing level..surface or near surface.

Greater Vancouver.
Arctic outflow warning in effect.
Tonight..mainly clear. Outflow wind 40 to 60 km/h developing. Low
minus 7.
Friday..sunny. Windy. High zero.
Saturday..increasing cloud. Slight chance of a flurry. Low minus 6.
 High plus 1.
Probability of precipitation in percent 40 tonight. Zero Friday and
 30 Saturday.

Greater Victoria.
Snowfall warning in effect.
Tonight..cloudy periods. Flurries likely. Local snowshowers
 producing accumulations of 5 to 10 centimetres overnight. Windy.
 Low minus 6.
Friday..cloudy with sunny periods. Chance of flurries. Windy.
 High plus 1.
Saturday..increasing cloud. Slight chance of a shower or flurry.
 Windy. Low minus 4. High plus 3.
Probability of precipitation in percent 70 tonight. 40 Friday and
 30 Saturday.

Lower Fraser Valley.
Arctic outflow warning in effect.
Tonight..clear. Outflow wind 40 to 70 km/h. Low minus 8 to minus 11.
Friday..sunny. Strong outflow wind continuing. High minus 1.
Saturday..increasing cloud. Slight chance of a flurry. Windy.
 Low minus 8. High plus 1.
Probability of precipitation in percent zero tonight. Zero Friday and
 30 Saturday.

Whistler.
Tonight..clear. Locally windy. Low minus 15.
Friday..sunny. Windy. High minus 7.
Saturday..increasing cloud. Chance of a flurry. Windy. Low minus 10.
 High minus 2.
Probability of precipitation in percent zero tonight. Zero Friday and
 40 Saturday.

Howe Sound.
Arctic outflow warning in effect.
Tonight..mainly clear. Northerly outflow wind 40 to 70 km/h.
 Low minus 9.
Friday..sunny. Outflow wind continuing. High minus 2.
Saturday..increasing cloud. Slight chance of a flurry. Windy.
 Low minus 7. High plus 1.
Probability of precipitation in percent zero tonight. Zero Friday and
 30 Saturday.

Sunshine Coast.
Arctic outflow warning in effect.
Tonight..mainly clear. Outflow wind 40 to 70 km/h through inlets.
 Low minus 7.
Friday..sunny. Gusty wind near the inlets. High minus 2.
Saturday..increasing cloud. Slight chance of a flurry. Windy.
 Low minus 5. High plus 1.
Probability of precipitation in percent 10 tonight. Zero Friday and
 30 Saturday.

East Vancouver Island.
Snowfall warning in effect.
Tonight..cloudy periods. Windy in exposed areas. Flurries likely.
 Local snowshowers producing accumulations of 5 to 10 centimetres.
 Low minus 9.
Friday..sunny with cloudy periods. Slight chance of flurries. Windy.
 High zero.
Saturday..increasing cloud. Slight chance of a flurry. Windy.
 Low minus 5. High plus 2.
Probability of precipitation in percent 70 tonight. 30 Friday and
 30 Saturday.

West Vancouver Island.
Tonight..a few clouds. Locally windy. Low minus 5.
Friday..sunny with cloudy periods. High plus 3.
Saturday..increasing cloud. Slight chance of a shower or flurry.
 Windy. Low near minus 3. High near 4.
Probability of precipitation in percent zero tonight. Zero Friday and
 30 Saturday.

North Vancouver Island.
Tonight..mainly clear. Windy. Low minus 8.
Friday..mainly sunny. Windy. High minus 1.
Saturday..increasing cloud. Slight chance of a shower or flurry.
 Windy. Low near minus 4. High near 4.
Probability of precipitation in percent 10 tonight. Zero Friday and
 30 Saturday.

Central coast.
Arctic outflow warning in effect.
Tonight..clear. Outflow wind 70 to 100 km/h through mainland inlets.
 Low minus 8 coast to minus 20 inland.
Friday..sunny. Windy. High zero coast to minus 8 inland.
Saturday..cloudy with sunny periods. Slight chance of flurries.
 Windy and cold. Low minus 5 coast to minus 14 inland. High zero
 coast to minus 6 inland.
Probability of precipitation in percent zero tonight. Zero Friday and
 30 Saturday.

North coast.
Arctic outflow warning in effect.
Tonight..mainly clear and cold. Outflow wind 60 to 90 km/h through
 mainland inlets. Low minus 14 coast to minus 22 inland.
Friday..mainly sunny. Windy. High minus 2.
Saturday..cloudy with sunny periods. Slight chance of flurries.
 Windy. Low minus 9 coast to minus 14 inland. High zero coast to
 minus 10 inland.
Probability of precipitation in percent zero tonight. Zero Friday and
 30 Saturday.

Queen Charlottes.
Arctic outflow warning in effect.
Tonight..cloudy periods. Chance of flurries. Windy. Low minus 8.
Friday..sunny with cloudy periods. Slight chance of flurries.
 High minus 2.
Saturday..cloudy with sunny periods. Slight chance of showers or
 flurries. Low minus 4. High plus 3.
Probability of precipitation in percent 60 tonight. 30 Friday and
 30 Saturday.

End/erl


109 
fpcn50 cwvr 072142
mountain weather forecast for coastal British Columbia issued by the
Pacific weather centre of Environment Canada in Vancouver at 2:00 PM
PST Thursday 7 December 1995 valid until midnight Friday.  The next
scheduled forecast will be issued at 6:00 AM PST Friday.

Precipitation intensity is forecast as an
hourly rate of snowfall water equivalent.
  Nil        light          moderate       heavy
no pcpn   up to 2.5 mm   2.5 to 7.5 mm   more than 7.5 mm

discussion.
A very strong high pressure area is centered over the yukon. A ridge
extends southwards through the interior of b.c. Very cold and dry
arctic air is associated with this ridge and will cover the mountain
districts through the period. A strong pressure gradient lies over
the coast from the high pressures in the interior to the lower
pressures offshore and this gradient is generating very strong
outflow winds through mainland inlets and mountain passes. These
winds should ease late Friday.

Freezing level..surface.

Extended outlook.
Continuing cold and dry through Saturday. A Pacific frontal system
will approach the south coast from the southwest late Saturday
spreading cloud over the region late in the day. A more vigorous but
warmer system will follow on Sunday bringing snow.

South coast mountains.
Warnings.. Arctic outflow warning.
Nil tonight and Friday except moderate this afternoon southern
sections.
Mountaintop winds..north to northeast 30 to 40 km/h. Stronger
outflow winds at lower elevations.

Location        precip to 4am   precip 4am-4pm   min  max
                Friday          Friday
squamish        nil             nil             -11   -03
duffey lk       nil             nil             -20   -11
allison pass    6-15            nil             -17   -09
Fraser canyon   nil             nil             -16   -04

central coast mountains.
Warnings.. Arctic outflow warning.
Nil tonight and Friday.
Mountaintop winds..east to northeast 30 to 40 km/h. Strong outflow
winds at lower elevations.

Location        precip to 4am   precip 4am-4pm   min  max
                Friday          Friday
heckman pass    nil              nil             -23   -08

north coast mountains.
Warnings.. Arctic outflow warning.
Nil tonight and Friday.
Mountaintop winds..northeast 30 to 40 km/h. Strong outflow winds at
lower elevations.

Location        precip to 4am   precip 4am-4pm   min  max
                Friday          Friday
terrace tyee    nil             nil             -19    -9
bear pass       nil             nil             -27   -17
ningunsaw pass  nil             nil             -32   -17
telegraph crk   nil             nil             -43   -15

confidence..good. No precipitation is expected however the strength
of the wind will be variable and very strong (up to 100 km/h)
through mainland inlets and mountain passes as the arctic air rushes
out onto the coast.

This mountain weather forecast was produced for BC ministry of
transportation and highways, snow avalanche programs and applies
specifically to those areas in the forecast.  If further information
or other products are required for local operations, please call
664-9033.

End/erl