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613 
Fpcn11 cwvr 050247
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 7 PM PST Thursday 4 January 1996 for
tonight Friday and Saturday.
The next scheduled forecast will be issued at 5 AM Friday.

Synopsis for coastal BC.
  Spotty flurries will diminish through the evening across the inner
south coast as a weak disturbance moves inland.  Clear but cold
weather will persist across the balance of coastal British Columbia.
  An intensifying Pacific frontal system is poised to attack the
coast on Friday.  Clouds will spread in from the west tonight with
strong winds and precipitation developing from the west on Friday.
Rain is expected to reach western Vancouver Island and the queen
Charlottes in the morning before spreading to remaining regions in
the afternoon or evening.
  The precipitation is likely to begin as snow in many localities
before changing to rain on Friday night or Saturday as the
temperature rises.  There is a risk of freezing rain through the
Fraser Valley and some mainland inlets as cold arctic air delays its
departure.

Freezing level..south..500 metres rising to 1500 metres Friday
evening.  Below freezing temperatures at the surface.
North..at surface rising to near 600 metres Friday evening.

Greater Vancouver.
Tonight..mainly cloudy. Slight chance of evening flurries.
 Low minus 4.
Friday..cloudy. Rain or wet snow beginning in the afternoon. Chance
 of freezing rain eastern areas. High 3.
Saturday..periods of rain. Windy. Low 1. High 8.
Probability of precipitation in percent 30 tonight. 80 Friday and
 90 Saturday.

Greater Victoria.
Tonight..mainly cloudy. Chance of evening flurries. Low minus 3.
Friday..cloudy. Rain developing in the afternoon. High 5.
Saturday..periods of rain. Windy. Low 3. High 10.
Probability of precipitation in percent 40 tonight. 80 Friday and
 90 Saturday.

Lower Fraser Valley.
Tonight..slight chance of evening flurries then partial clearing.
 Locally windy. Low minus 9.
Friday..becoming cloudy. Snow likely in the late afternoon or
 evening. Risk of freezing rain. High 2.
Saturday..snow changing to rain. Windy. Low near zero. High near 7.
Probability of precipitation in percent 30 tonight. 70 Friday and
 90 Saturday.

Whistler.
Tonight..mainly clear. Low minus 12.
Friday..becoming cloudy. Snow developing in the evening. High zero.
Saturday..snow changing to rain. Windy. Low near minus 1.
 High near 4.
Probability of precipitation in percent 10 tonight. 80 Friday and
 90 Saturday.

Howe Sound.
Wind warning in effect.
Tonight..slight chance of evening flurries then becoming mainly
 clear. Outflow wind 50 to 70 km/h easing overnight. Low minus 5 to
 minus 10.
Friday..becoming cloudy. Periods of snow developing in the afternoon
 or evening. Risk of freezing rain. High 3.
Saturday..snow changing to rain. Windy. Low near zero. High near 5.
Probability of precipitation in percent 30 tonight. 80 Friday and
 90 Saturday.

Sunshine Coast.
Tonight..slight chance of evening flurries then variable cloudiness.
 Low minus 4.
Friday..cloudy. Wet snow or rain developing in the afternoon. High 4.
Saturday..periods of rain. Windy. Low near zero. High near 5.
Probability of precipitation in percent 30 tonight. 80 Friday and
 90 Saturday.

East Vancouver Island.
Tonight..chance of evening flurries then variable cloudiness.
 Low minus 4.
Friday..cloudy. Snow developing by noon and changing to rain in the
 afternoon. High 4.
Saturday..periods of rain. Windy. Low near 3. High near 10.
Probability of precipitation in percent 40 tonight. 80 Friday and
 90 Saturday.

West Vancouver Island.
Wind warning issued.
Tonight..becoming cloudy. Chance of showers or flurries. Low near
 zero.
Friday..cloudy. Rain developing in the morning..possibly beginning as
 snow. Southeast wind 60 to 80 km/h developing in the afternoon over
 northern sections. High 6.
Saturday..periods of rain. Windy. Low near 1. High near 6.
Probability of precipitation in percent 40 tonight. 100 Friday and
 90 Saturday.

North Vancouver Island.
Wind warning issued.
Tonight..mainly clear this evening. Becoming cloudy overnight.
 Locally windy. Low minus 3.
Friday..cloudy. Rain or wet snow developing by noon. Southeast wind
 60 to 90 km/h developing in the morning. High 4.
Saturday..periods of rain. Windy. Low near 3. High near 9.
Probability of precipitation in percent 20 tonight. 90 Friday and
 90 Saturday.

Central coast - coastal sections.
Wind warning in effect.
Tonight..clear. Clouding over by dawn. Local outflow wind to 70 km/h
 through inlets and valleys diminishing overnight. Low minus 5.
Friday..cloudy. Wet snow or rain developing in the afternoon.
 Southeast wind 60 to 80 km/h developing in the afternoon. High 5.
Saturday..periods of rain. Windy. Low plus 3 on the coast to minus 3
 inland. High 8 coast to plus 3 inland.
Probability of precipitation in percent 10 tonight. 80 Friday and
 90 Saturday.

Central coast - inland sections.
Tonight..clear. Low minus 15.
Friday..increasing cloud. Snow developing in the evening.
 High minus 3.
Saturday..cloudy. Periods of snow changing to rain in the afternoon.
 Windy. Low minus 5. High plus 2 to plus 6.
Probability of precipitation in percent zero tonight. 80 Friday and
 90 Saturday.

North coast - coastal sections.
Wind warning issued.
Tonight..clear. Low minus 10.
Friday..becoming cloudy. Periods of snow possibly mixed with rain
 developing in the afternoon. Southeast wind 60 to 80 km/h developing
 in the afternoon. High 2.
Saturday..periods of rain. Windy. Low near zero. High 6.
Probability of precipitation in percent zero tonight. 80 Friday and
 90 Saturday.

North coast - inland sections.
Tonight..clear. Low minus 15.
Friday..becoming cloudy. Periods of snow developing late in the day.
 Locally windy. High minus 4.
Saturday..cloudy. Periods of snow. Windy. Low minus 5. High zero to
 plus 3.
Probability of precipitation in percent zero tonight. 80 Friday and
 90 Saturday.

Queen Charlottes.
Wind warning issued.
Tonight..increasing cloudiness. Low near minus 3.
Friday..cloudy. Rain beginning in the morning. Southeast wind 60 to
 90 km/h developing by noon. High 5.
Saturday..periods of rain. Windy. Low 3. High 9.
Probability of precipitation in percent 20 tonight. 90 Friday and
 90 Saturday.

End/pw/tl


405 
fpcn50 cwvr 032130
mountain weather forecast for coastal British Columbia issued by the
Pacific weather centre of Environment Canada in Vancouver at 2:00 PM
PST Wednesday 3 January 1996 valid until midnight Thursday.  The next
scheduled forecast will be issued at 6:00 AM PST Thursday.

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 big upper ridge covers the gulf of Alaska with a northerly flow
over the coast. The ridge supports a 1040 mb arctic surface high
centered over the central yukon. This high centre will move to
north-central BC by Thursday afternoon. The arctic front extends
from near rosespit on the queen Charlottes to vicinty bella coola -
southeastwards. Overnight the central and southern portions will
push out to queen charlotte Sound on the central coast and strait of
georgia in the south. Cloud associated with the front May generate
some isolated light flurries over eastern slopes tonight. Otherwise
conditions will be mainly clear and cold with strong surface outflow
winds through the inlets and valleys.

Freezing level..surface central and north coasts. In the south near
1400 metres coast to 1000 metres inland lowering to 600 metres coast
and surface inland overnight and Thursday.

Extended outlook.
On Friday the surface high will move to central sask and the upper
high will drift eastward allowing overrunning cloud on the next
series of fronts to reach the coast in the evening and precipitation
to spread onto the coast overnight. On sat the upper high will move
inland bringing a mild southwest flow over the coast with rising
freezing levels and significant precipitation. The front will move
inland early sun leaving the coast under an unstable showery and
somewhat cooler pattern again.

South coast mountains.
Warnings.. None.
Occasional light flurries eastern slopes this evening then nil.
Mountaintop winds..northwest 20 km/h becoming northeast 20 km/h
overnight. Outflow winds 30 to 40 km/h at the surface.

Location        precip to 4am   precip 4am-4pm   min  max
                Thursday          Thursday
squamish        nil             nil              -3    -1
duffey lk       0-1             nil             -10    -7
allison pass    0-1             nil              -5    -3
Fraser canyon   nil             nil              -2     0

central coast mountains.
Warnings.. Artic outflow warning.
Occasional light flurries eastern slopes this evening then nil.
Mountaintop winds..northeast 30 to 40 km/h. Outflow winds 50 to 80
km/h at the surface.

Location        precip to 4am   precip 4am-4pm   min  max
                Thursday          Thursday
heckman pass    0-1             nil             -12    -9

north coast mountains.
Warnings.. Artic outflow warning.
Nil tonight and thurs.
Mountaintop winds..northeast 30 to 40 km/h becoming easterly 30 to
40 km/h overnight. Outflow winds 60 to 90 km/h at the surface.

Location        precip to 4am   precip 4am-4pm   min  max
                Thursday          Thursday
terrace tyee    nil             nil              -6    -2
bear pass       nil             nil             -11    -8
ningunsaw pass  nil             nil             -16   -11
telegraph crk   nil             nil             -17    -6

confidence..good. Fairly straightfoward dry arctic pattern in the
short term. Tempertures in the north might be a little colder.
Details of the breakdown fri night and sat still a little uncertain
but thickness pattern and advections indicate freezing levels near
1800 metres in the south and 1500 metres in the north for sat
afternoon.  In addition there's a good chance of some freezing rain
with this situation.

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/db