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477 
Fpcn11 cwvr 161735
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 10 AM PST Tuesday 16 January 1996 for
today and Wednesday.
The next scheduled forecast will be issued at 4 PM.

Synopsis for coastal BC.
  A strong ridge of high pressure over the yukon will build southward
through the interior of the province today.  This will allow cold
arctic air to spill out through the inlets and valleys with a
distinctly different feel to the air from the past while.  A weak
disturbance will move southward along the coast today accompanied by
scattered showers or wet flurries.  Then clearing and quite cold
conditions will be widespread tonight and Wednesday as the ridge of
high pressure exerts its influence.
  In the north cold air in the interior continues to push out to the
coast through mainland inlets and valleys.  Gusty outflow winds
combined with low temperatures is resulting in high windchill values
across the north and central coast and arctic outflow warnings remain
in effect.

Freezing level..south..near 600 metres coast and surface inland
becoming surface or near surface all areas tonight. 
North..surface or near surface.

Greater Vancouver.
Today..a mix of cloud and sun. Chance of an afternoon shower or
 flurry. High 6.
Tonight..slight chance of an evening flurry then clearing overnight.
 Locally windy. Low minus 5.
Wednesday..mainly sunny. Easterly wind 20 km/h developing. High 4.
Probability of precipitation in percent 40 today. 30 tonight and
 10 Wednesday.

Greater Victoria.
Today..a mix of cloud and sun. Chance of a shower. High 6.
Tonight..cloudy periods. Chance of an evening shower or flurry.
 Low minus 2.
Wednesday..mainly sunny. High 5.
Probability of precipitation in percent 40 today. 40 tonight and
 10 Wednesday.

Lower Fraser Valley.
Today...cloudy with sunny breaks. Chance of showers or flurries.
 Locally windy. High 3 to 6.
Tonight..cloudy periods. Chance of evening flurries. Locally windy.
 Low minus 5 to minus 8.
Wednesday..mainly sunny. Gusty easterly wind. High zero to plus 3.
Probability of precipitation in percent 40 today. 40 tonight and
 10 Wednesday.

Whistler.
Today..mainly cloudy with a few flurries. High zero.
Tonight..chance of an evening flurry. Clearing overnight. Low minus 8
 to minus 12.
Wednesday..mainly sunny. High minus 2.
Probability of precipitation in percent 80 today. 40 tonight and
 20 Wednesday.

Howe Sound.
Today..variable cloudiness. Chance of showers or flurries.
 High plus 2 to 5.
Tonight..chance of evening flurries. Clearing overnight. Outflow wind
 30 to 50 km/h developing. Low minus 3 to minus 6.
Wednesday..mainly sunny. Outflow wind 40 to 60 km/h. High zero to
 plus 3.
Probability of precipitation in percent 40 today. 40 tonight and
 10 Wednesday.

Sunshine Coast
east Vancouver Island.
Today..cloudy with sunny breaks. Chance of showers or flurries.
 High 3 to 6.
Tonight..chance of an evening flurry then becoming mainly clear
 overnight. Low minus 2 to minus 5.
Wednesday..a mix of sun and cloud. High plus 3.
Probability of precipitation in percent 40 today. 40 tonight and
 20 Wednesday.

West Vancouver Island.
Today..variable cloudiness. Showers likely. High 5.
Tonight..a few evening showers then clearing. Low minus 2 to minus 4.
Wednesday..sunny. Increasing cloudiness late in the day. High zero to
 plus 4.
Probability of precipitation in percent 70 today. 80 tonight and
 20 Wednesday.

North Vancouver Island.
Today..variable cloudiness. A few showers or wet flurries. Slight
 chance of a thundershower. High 3.
Tonight..clearing this evening. Locally windy. Low zero to minus 4.
Wednesday..a mix of sun and cloud. Windy. High plus 1.
Probability of precipitation in percent 80 today. 20 tonight and
 10 Wednesday.

Central coast.
Arctic outflow warning in effect.
Today..cloudy. A few flurries. Northerly outflow wind 50 to 80 km/h
 through mainland inlets. High 3 coast to minus 6 inland.
Tonight..clearing. Continuing windy through mainland inlets.
 Low minus 5 coast to minus 12 inland.
Wednesday..mainly sunny. Continued outflow wind. High zero coast to
 minus 12 inland.
Probability of precipitation in percent 80 today. 30 tonight and
 10 Wednesday.

North coast.
Arctic outflow warning in effect.
Today..mainly sunny. Northerly outflow wind 50 to 80 km/h through
 mainland inlets giving high windchill. High minus 4 coast to minus 9
 inland.
Tonight..clear and cold. Outflow wind continuing through mainland
 inlets. Low minus 12 coast to minus 15 inland.
Wednesday..mainly sunny. Outflow wind continuing through mainland
 inlets. High minus 6 coast to minus 12 inland.
Probability of precipitation in percent 00 today. 00 tonight and
 10 Wednesday.

Queen Charlottes.
Today..sunny with cloudy periods. Chance of flurries. Northerly wind
 to 40 km/h. High 2.
Tonight..mainly clear. Locally windy. Low minus 5.
Wednesday..mainly sunny. Windy. High minus 1.
Probability of precipitation in percent 60 today. 10 tonight and
 10 Wednesday.

End/pw


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