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745 
Fpcn11 cwvr 032339
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 4 PM PST Friday 3 november 1995 for
tonight Saturday and Sunday.
The next scheduled forecast will be issued at 7 PM.

Synopsis for coastal BC.
  An intense Pacific storm will move onto the north coast tonight
generating strong southeast winds and considerably precipitation.
Rain has already spread onto the panhandle with snow inland at
stewart.  Rain will continue to spread down the coast with snow or a
mix of wet snow and rain over inland sections.  Up to 30 centimetres
are expected in the stewart-nass River areas with lesser amounts
further south.  Wind warnings are in effect for the north and central
coasts including the queen Charlottes and a snow warning is in
effect for inland areas of the north coast.
  Further south a ridge of high pressure continues to protect the
south coast but it will break down overnight allowing rain to spread
in late Saturday morning.  Over higher terrain and over inland
sections such as Whistler some wet snow can be expected.
  Behind the front a very cool and unsettled pattern will generate
showers along the coast with flurries or mixed rain and snow showers
inland for Sunday.

Freezing level..in the south near 2300 metres over southwestern
Vancouver Island to 1800 metres over the southern mainland coast and
1000 metres inland.  In the north near 1000 metres over the coast and
surface inland.  Becoming by Saturday afternoon 800 metres north to
1100 metres south Saturday afternoon.

Greater Vancouver.
Tonight..mainly cloudy. Low 3.
Saturday..cloudy. Rain beginning late morning. Locally windy.
 High 10.
Sunday..cloudy with showers. Windy. Low 4. High 9.
Probability of precipitation in percent 10 tonight. 90 Saturday and
 80 Sunday.

Greater Victoria.
Tonight..mainly cloudy. Low 3.
Saturday..cloudy. Rain beginning late morning. High 9.
Sunday..cloudy with sunny periods. Showers likely. Windy. Low 4.
 High 9.
Probability of precipitation in percent 10 tonight. 90 Saturday and
 70 Sunday.

Lower Fraser Valley.
Tonight..mainly cloudy. Low 1.
Saturday..cloudy. Rain beginning late morning. Chance of mixed rain
 and wet snow eastern sections and over higher terrain. High 7.
Sunday..mainly cloudy with showers likely. Chance of mixed rain and
 snow showers over eastern sections and higher terrain. Windy. Low 3.
 High 7.
Probability of precipitation in percent 10 tonight. 100 Saturday and
 70 Sunday.

Whistler.
Tonight..mainly cloudy. Low minus 1.
Saturday..periods of snow or mixed rain and snow. Snowfall
 accumulations to 5 centimetres. High plus 2.
Sunday..mainly cloudy with flurries likely. Low minus 2. High zero.
Probability of precipitation in percent 10 tonight. 100 Saturday and
 70 Sunday.

Howe Sound.
Tonight..mainly cloudy. Low 1.
Saturday..periods of rain. Locally windy. High 7.
Sunday..mainly cloudy with showers. Windy. Low 4. High 8.
Probability of precipitation in percent 20 tonight. 100 Saturday and
 80 Sunday.

Sunshine Coast
east Vancouver Island.
Tonight..cloudy. Chance of rain overnight. Low 4.
Saturday..rain tapering to a few showers in the afternoon. Locally
 windy. High 9.
Sunday..mainly cloudy with showers. Windy. Low 2. High 9.
Probability of precipitation in percent 40 tonight. 100 Saturday and
 80 Sunday.

West Vancouver Island.
Tonight..cloudy. Chance of rain overnight. Low 5.
Saturday..rain tapering to showers near noon. Locally windy. High 9.
Sunday..mainly cloudy with showers likely. Windy. Low 4. High 9.
Probability of precipitation in percent 40 tonight. 100 Saturday and
 70 Sunday.

North Vancouver Island.
Tonight..cloudy. Rain and southeast wind 40 to 60 km/h overnight.
 Low 7.
Saturday..rain tapering to a few showers in the morning. Windy.
 High 9.
Sunday..cloudy with showers. Windy. Low 4. High 9.
Probability of precipitation in percent 90 tonight. 100 Saturday and
 90 Sunday.

Central coast - coastal sections.
Wind warning in effect.
Tonight..periods of rain. Wind increasing to southeast 60 to 90 km/h
 over the exposed coast. Low 7.
Saturday..cloudy with showers and windy. High 9.
Sunday..mainly cloudy with chance of showers. Low 5. High 7.
Probability of precipitation in percent 100 tonight. 100 Saturday and
 60 Sunday.

Central coast - inland sections.
Tonight..rain except snow at higher levels with accumulations to 10
 centimetres. Low zero.
Saturday..flurries changing to showers in the morning. High 4.
Sunday..mainly cloudy with chance of flurries. Low 1. High 4.
Probability of precipitation in percent 100 tonight. 100 Saturday and
 60 Sunday.

North coast - coastal sections.
Wind warning in effect.
Tonight..wind southeasterly 60 to 80 km/h over the exposed coast.
 Rain tapering to showers. Low 7.
Saturday..wind southwesterly 60 to 80 km/h. Showers. High 9.
Sunday..cloudy with sunny periods. Chance of showers. Low 2. High 7.
Probability of precipitation in percent 100 tonight. 100 Saturday and
 60 Sunday.

North coast - inland sections.
Snowfall warning in effect.
Tonight..mixed wet snow and rain except snow over northern sections.
 Snowfall accumulations of 20 to 30 cm over the stewart nass and
 meziadin areas. Lighter accumulations elsewhere. Locally windy.
 Low zero.
Saturday..mixed rain and snow showers except snow showers over
 northern sections and higher terrain. Windy. High 4.
Sunday..mainly cloudy with chance of flurries or mixed rain and
 southwest. Low zero. High 3.
Probability of precipitation in percent 100 tonight. 100 Saturday and
 60 Sunday.

Queen Charlottes.
Wind warning in effect.
Tonight..wind southeast 60 to 100 km/h shifting to southwest 60 to
 100 overnight. Rain tapering to showers. Low 6.
Saturday..wind westerly 60 to 90 km/h. Sunny periods and a few
 showers. High 9.
Sunday..cloudy with sunny periods. Chance of showers. Low 4. High 9.
Probability of precipitation in percent 100 tonight. 100 Saturday and
 60 Sunday.

End/db


904 
fpcn50 cwvr 032145
mountain weather forecast for coastal British Columbia issued by the
Pacific weather centre of Environment Canada in Vancouver at 2:00 PM
PST Friday 3 november 1995 valid until midnight Saturday.  The next
scheduled forecast will be issued at 6:00 AM PST Saturday.

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.
  The upper flow continues to evolve into a more zonal pattern as
successive short wave troughs move through flattening what remains
of the upper ridge over BC.  It still exists as a flat nose
northeast to southwest across van. I..  Futher upstream a deep upper
low is forming just west of 140 w.  This will tend to pump the ridge
up a little in the short term especially over the south coast and
delay the approach of any incoming systems for awhile.  However as
the upper low kicks eastward towards the coast tonight this ridging
will disappear.
  The surface pattern mirrors these upper features.  A surface high
lies northeast-southwest across southern van. I..  A deep 983 mb low
is centered near 57 n 142 w.  Its frontal wave is at 44 n 135 w with
a warm front arcing southeastward to prince rupert - southward and a
cold front southwestward.  The cloud shield with this system extends
across the panhandle and across prince rupert and the qn Charlottes.
Sat pics should considerable cloud top cooling with this system
indicating good development and rapid deepening.
  By sat morning the low will have deepened to 974 mb and moved to
60 nm west of sitka.  The wave will pinch off as cold air surges
into the back side.  By sat morning the cold front will lie
north-northeast to south-southwest across northern van. I. And be
moving southeastward at 25 knots to be out of the area by late
afternoon.  In behind a very moist and unstable airmass will
continue to give showers or flurries to the entire coast.  Thickness
values will decrease sharply so that much of the precipitation will
fall as snow.

Freezing level..surface ningunsaw bear pass area. Near 1000 metres
terrace area to 1200 metres central coast to 1800 metres mainland
south coast and 1000 metres inland south coast. Levels lowering to
800 metres north coast and 1100 metres south coast on sat.

Extended outlook.
A northwesterly flow of cool and unstable air will continue through
Monday with thicknesses remaining very low.  On Tuesday a frontal
system will move onto the south coast overrunning the cold air and
creating good potential for heavy snowfalls.

South coast mountains.
Warnings.. None.
Nil thru late sat morning then light with some brief periods of
moderate thru sat afternoon.  Light flurries sat evening.
Mountaintop winds..northeast 10 to 15 tonight becoming southwest 25
to 45 km/h sat morning and southwest 40 to 70 km/h sat afternoon.

Location        precip to 4am   precip 4am-4pm   min  max
                Saturday          Saturday
squamish        nil             6-15              1     3
duffey lk       nil             6-15             -4    -2
allison pass    nil             1-5              -8    -2
Fraser canyon   nil             1-5              -4     4



central coast mountains.
Warnings.. Wind warning for the coast.
Light this evening with periods of moderate after midnight.
Light occasionally moderate flurries sat.
Mountaintop winds..increasing to southwest 40 to 70 km/h tonight
then westerly 30 to 60 km/h sat.

Location        precip to 4am   precip 4am-4pm   min  max
                Saturday          Saturday
heckman pass    1-5             6-15             -4    0


north coast mountains.
Warnings.. Snowfall warning inland sections. Wind warnings coast.
Light becoming light to moderate overnight. Light with local
moderate flurries sat.
Mountaintop winds..southwest 70 to 100 km/h.

Location        precip to 4am   precip 4am-4pm   min  max
                Saturday          Saturday
terrace tyee    6-15            6-15              2     4
bear pass       15-30           6-15             -3    -1
ningunsaw pass  15-30           6-15             -4    -2
telegraph crk   1-5             1-5              -4    -1


confidence..fair. Good dynamics for system devlopment evident.
Details of inflow/outflow on the north coast especially terrace is a
bit uncertain.  Also the freezing level is borderline for snow/rain
so accumulations are uncertain. Another uncertainty is the amount of
precipitation in unstable air behind front.

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