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767 
Fpcn11 cwvr 031805
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 10 AM PST Sunday 3 December 1995 for
today and Monday.
The next scheduled forecast will be issued at 4 PM.

Synopsis for coastal BC.
  A fast-moving low pressure system is forecast to cross washington
state from the southwest today.  The low will spread more organized
rain and snow to most of the south this afternoon.  Wet snow or mixed
rain and snow will change to rain over eastern sections of the Fraser
Valley and inland sections of howe Sound but steady snow is forecast
for the village of Whistler.  Very strong northwest winds will
develop this evening as temperatures fall in the very cold air
behind this system.  Meanwhile heavy snowflurries will persist over
central and northern areas today as the strong onshore flow of very
cold air persists.
  By Monday morning only isolated to scattered flurries are expected
over the south.  Another low pressure system will approach the
Charlottes from the northwest spreading light snow to the north later
in the day.

Freezing level..south..near 900 metres rising to 1100 metres in the
south this afternoon.  Levels lowering to near the surface tonight
and rising to 300 metres Monday afternoon.  North..surface except 200
metres on the outer coast falling to surface on Monday.

Greater Vancouver.
Wind warning issued.
Today..periods of rain. Windy. Temperature steady near 8.
Tonight..rain tapering to a few showers or flurries. Wind northwest
 60 km/h with gusts to 90 in exposed locations. Low near zero.
Monday..flurries likely in the morning. Clearing in the afternoon.
 Wind easing. High 5.
Probability of precipitation in percent 100 today. 90 tonight and
 70 Monday.

Greater Victoria.
Wind warning issued.
Today..periods of rain. Temperature steady near 7.
Tonight..rain tapering to a few showers or flurries. West wind
 60 km/h with gusts to 90 near the strait. Low near zero.
Monday..cloudy with sunny periods. Chance of showers or flurries.
 Wind easing. High 6.
Probability of precipitation in percent 90 today. 90 tonight and
 40 Monday.

Lower Fraser Valley.
Snowfall warning for eastern sections in effect.
Today..periods of rain developing this morning except wet snow
 changing to rain over eastern sections. Snow accumulations of 5
 centimetres. High 3 to 6.
Tonight..rain tapering to showers or flurries. West wind 50 km/h with
 gusts to 80 km/h this evening. Low zero.
Monday..mainly cloudy. A few showers or flurries. Wind easing.
 High 4.
Probability of precipitation in percent 100 today. 100 tonight and
 80 Monday.

Whistler.
Snowfall warning in effect.
Today..periods of snow. Accumulations of 10 to 20 centimetres.
 High zero.
Tonight..snow tapering to a few flurries. Gusty southwest wind.
 Low minus 4.
Monday..cloudy with sunny breaks. Chance of flurries. Wind easing.
 High minus 3.
Probability of precipitation in percent 100 today. 100 tonight and
 60 Monday.

Howe Sound.
Snowfall warning for inland sections in effect.
Today..periods of rain except snow inland. Snow changing to rain
 inland. Accumulations of 8 to 15 centimetres. High 4.
Tonight..rain tapering to a few showers or flurries. West wind 40
km/h with
 gusts to 60 km/h this evening. Low zero.
Monday..cloudy with sunny periods. Chance of flurries or showers.
 Wind easing. High 3.
Probability of precipitation in percent 100 today. 100 tonight and
 60 Monday.

Sunshine Coast
east Vancouver Island.
Wind warning issued.
Today..periods of rain. Flurries over higher ground. Locally windy
 this morning. Temperature steady near 6.
Tonight..rain tapering to a few showers or flurries. Wind northwest
 60 km/h with gusts to 90 in exposed locations. Low zero.
Monday..mainly sunny. Wind easing. High 7.
Probability of precipitation in percent 90 today. 90 tonight and
 20 Monday.

West Vancouver Island.
Wind warning issued.
Today..periods of rain. Locally windy. Temperature steady near 6.
Tonight..rain changing to a few flurries or showers. Local snow
 accumulations to 3 centimetres. Wind southwest 60 km/h with gusts to
 90 km/h. Low zero.
Monday..mainly cloudy with a few flurries or showers. Wind easing.
 High 5.
Probability of precipitation in percent 100 today. 90 tonight and
 80 Monday.

North Vancouver Island.
Snowfall warning in effect.
Today..cloudy with showers. Flurries over higher ground. High 3.
Tonight..flurries and windy. Local accumulations to 5 centimetres.
 Low zero.
Monday..mainly cloudy. A few flurries or showers. Wind easing.
 High 3.
Probability of precipitation in percent 100 today. 100 tonight and
 80 Monday.

Central coast - coastal sections.
Snowfall warning in effect.
Today..cloudy with showers. Locally windy. High 5.
Tonight..flurries with local accumulations to 5 centimetres.
 Low minus 1.
Monday..cloudy with chance of flurries. Snow developing in evening.
 High plus 1.
Probability of precipitation in percent 90 today. 100 tonight and
 80 Monday.

Central coast - inland sections.
Snowfall warning in effect.
Today..snow at times heavy with additional accumulations of 20 to 30
 centimetres. High zero.
Tonight..snow tapering to a few flurries. Locally windy. Low minus 4.
Monday..cloudy with chance of flurries. High minus 2.
Probability of precipitation in percent 100 today. 90 tonight and
 60 Monday.

North coast - coastal sections.
Snowfall warning in effect.
Today..snow at times heavy with additional accumulations to 15
 centimetres. Locally windy. High 2.
Tonight..cloudy with a few flurries. Low minus 5.
Monday..mainly cloudy with chance of flurries. Snow developing in
 evening. High zero.
Probability of precipitation in percent 100 today. 80 tonight and
 80 Monday.

North coast - inland sections.
Snowfall warning in effect.
Today..snow at times heavy with additional accumulations of 15 to 25
 centimetres. Locally windy. High minus 1.
Tonight..cloudy with a few flurries. Low minus 7.
Monday..mainly cloudy with chance of flurries. Snow developing in
 evening. High minus 4.
Probability of precipitation in percent 100 today. 80 tonight and
 80 Monday.

Queen Charlottes.
Snowfall warning in effect.
Today..flurries at times heavy with additional local accumulations of
 5 to 10 centimetres. Windy. High near zero.
Tonight..cloudy with clear periods. A few flurries. Low minus 3.
Monday..cloudy. Snow or rain developing. High 3.
Probability of precipitation in percent 100 today. 80 tonight and
 80 Monday.

End/cjd


183 
fpcn50 cwvr 031404
mountain forecast guidance for coastal British Columbia issued by the
Pacific weather centre of Environment Canada in Vancouver at 4 AM PST
Sunday 3 December 1995 valid until midnight Monday.
The next scheduled guidance will be issued at 2 PM today.

Synopsis.
  A very cold upper low located near 57n 139w at 4 AM has been
moving sse about 10 knots. Its expected to curve more to the east to
lie near mackenzie by 4 AM Monday morning. Satellite imagery
indicates heavy convection rotating cyclonically around upper low
all the way down to central coast. Heights will continue to fall
today as upper low approaches. This coupled with strong onshore flow
will maintain locally heavy snows until early this evening. The
heights will rebound and onshore flow will ease overnight so
precipitation will taper off. A frontal wave approaching from
southwest Alaska will spread light snow to region from the
west-northwest late Monday.
  In the south low pressure system near 43n 135w will move rapidly
northeast to near seattle by late this afternoon and into southern
alberta by 4 AM Monday. Northern edge of deformation zone with this
feature is disorganized and extends from 47n 140w to port hardy-
enewds. It will become more organized and shift to south and east of
the region tonight. Precipitation will become more organized to the
south of it as weak warm air advection continues aloft today.
Precipitation will change to convective in nature this evening as
low moves to east and lowering heights occur due to southward
extension of cold trough from upper low crossing from west.
Convection will ease Monday as heights rebound and onshore flow
weakens.
    The arctic front between stewart and dease lake will slide to
the near terrace-esewds by Monday afternoon.

Freezing level..in the south 700 metres rising to 1100 metres this
afternoon. Levels lowering to near surface tonight and rising to
300-500 metres Monday afternoon. Central..400 metres coast to
surface inland lowering to surface tonight. North coast..surface
except 200 metres near outer coast today and late Monday.

Extended outlook.
   The low will cross district from west-northwest Tuesday. Arctic
front will slide down coast to lie over extreme northern washington
by Thursday morning. Light snow with low will give way to flurries
in its wake. Dry outflow conditions will set up along coastin wake
of arctic front.

South coast mountains.
Warnings.. Snowfall warning.
Light convective this morning. Light becoming briefly moderate this
afternoon and evening then light convective overnight. Nil to light
convective Monday.
Mountaintop winds..southerly 60 km/h shifting to westerly 80 km/h
this evening and easing to northwesterly 50 km/h Monday morning.

Central coast mountains.
Warnings.. Snowfall warning.
Light to moderate convective today easing to light tonight. Light
convective Monday.
Mountaintop winds..southwest 60 km/h shifting to west 40 this
evening.

North coast mountains.
Warnings.. Snowfall warning.
Light to moderate convective easing to light early this evening.
Light convective Monday.
Mountaintop winds..southwest 50 to 70 km/h becoming west 40 km/h
late this afternoon. Wind shifting to southerly 25 Monday afternoon.

Confidence..poor to fair with intensity of precipitation with
southern system as system is not warm valued. Otherwise fair to good.

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/dt