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295 
Fpcn11 cwvr 121730
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 10 AM PST Tuesday 12 December 1995
for today and Wednesday.
The next scheduled forecast will be issued at 4 PM.

Synopsis for coastal BC.
  An intense storm off the southern washington coast this morning
will move inland over southern coastal British Columbia during the
next 24 hours.  Very strong winds heavy rain and a few thunderstorms
will accompany the storm.  Rain and wind warnings remain in effect
for most south coast regions along with freezing rain snowfall and
arctic outflow warnings.  Central and south coast inlets will
experience very strong outflow winds this morning and early
afternoon.  For most other southern localities brisk south to east
winds will switch to very strong and gusty westerly winds late this
evening and overnight.  Rainfall totals of 30 to 50 millimetres are
expected in most areas by Wednesday morning with locally higher
amounts due to thunderstorms.

  Over the north coast strong outflow winds and a little snow will
occur today.  Blowing snow could significantly reduce visibilities
over many localities this afternoon.

  Winds will diminish on Wednesday as the low weakens inland however
slightly cooler weather will bring significant snowfalls to the south
coast mountains.

  The next in the series of deep Pacific storms is expected on the
south coast early Thursday.  Brisk outflow conditions will continue
in the north.

Freezing level..south..near 2100 metres south with a surface freezing
layer extreme inland sections.  Freezing level rising to near 2700
metres this afternoon then lowering to 1300 metres Wednesday
afternoon.  North..at or near the surface with an above freezing
layer between 500 and 1600 metres.

Greater Vancouver.
Wind warning in effect.
Heavy rain warning in effect.
Today..periods of rain...heavy at times...with chance of a
 thunderstorm. Wind southeast 40 to 60 km/h. High 13.
Tonight..rain heavy at times tapering to showers near morning.
 Total rainfall amounts 40 to 60 mm. Wind shifting to southwest 50 to
 70 km/h with gusts to 100 overnight. Low 9.
Wednesday..cloudy with showers. Wind southwest 40 to 60 km/h with
 gusts to 90 diminishing to southwest 30 km/h by noon. High 11.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

Greater Victoria.
Wind warning in effect.
Heavy rain warning in effect.
Today..rain...heavy at times..with chance of a thunderstorm.
 Southeast wind increasing to 40 to 70 km/h. High 12.
Tonight..rain heavy at times tapering to showers near morning.
 Total rainfall amounts 30 to 50 millimetres. Wind shifting to west
 50 to 70 km/h with gusts to 100 overnight. Low 7.
Wednesday..periods of rain. Wind diminishing to west 40 km/h by
 afternoon. High 12.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

Lower Fraser Valley.
Wind warning in effect.
Heavy rain warning in effect.
Today..rain...heavy at times...with chance of a thunderstorm.
 East wind 50 to 70 km/h developing. High 12 except 6 east.
Tonight..rain heavy at times. Wind shifting to southwest 40 km/h to
 80 km/h overnight. Low near 9 except 5 east.
Wednesday..rain tapering to showers. Total rainfall amounts 30 to 50
 millimetres. Strong southwest wind easing. High near 12 except 5
 east.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

Whistler.
Snowfall warning in effect.
Freezing rain warning in effect.
Today..snow giving local accumulations 10 to 15 centimetres changing
 to rain. Patchy freezing rain. Becoming windy. High near 3.
Tonight..periods of rain. Rain heavy at times. Windy. Temperature
 steady near 3.
Wednesday..periods of rain changing to snow in the morning giving
 accumulations of 10 to 20 cm. High near 4.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

Howe Sound.
Wind warning in effect.
Heavy rain warning in effect.
Today..rain...heavy at times...with chance of a thunderstorm.
 Northerly outflow wind 40 to 70 km/h. High near 8.
Tonight..rain heavy at times. Wind shifting to inflow 50 to 70 km/h
 overnight. Low near 6.
Wednesday..rain tapering to showers. Total rainfall amounts 40 to 70
 millimetres. Windy. High near 10.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

Sunshine Coast.
Wind warning in effect.
Heavy rain warning in effect.
Today..rain...heavy at times...with chance of a thunderstorm.
 Southeast wind increasing to 40 to 70 km/h over exposed areas.
 High near 11.
Tonight..rain heavy at times. Wind shifting to southwest 40 to
 70 km/h overnight. Low near 8.
Wednesday..rain tapering to showers in the morning. Total rainfall
 amounts 30 to 50 millimetres. Windy exposed areas. High near 11.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

East Vancouver Island.
Wind warning in effect.
Heavy rain warning in effect.
Today..rain...heavy at times. Southeast wind increasing to 40 to
 70 km/h. High near 12.
Tonight..rain heavy at times. Wind shifting to southwest 40 to
 70 km/h overnight. Low near 6.
Wednesday..rain tapering to showers in the morning. Total rainfall
 amounts 30 to 50 millimetres. Locally windy. High near 12.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

West Vancouver Island.
Wind warning in effect.
Today..rain...heavy at times. Southeast wind increasing to 40 to
 70 km/h over exposed coastal areas. High near 12.
Tonight..rain heavy at times tapering showers overnight.
 Wind shifting to southwest 70 to 90 km/h overnight. Total rainfall
 amounts 30 to 50 millimetres. Low near 7.
Wednesday..cloudy with showers. Windy. High near 12.
Probability of precipitation in percent 100 today. 100 tonight and
 90 Wednesday.

North Vancouver Island.
Wind warning in effect.
Today..rain developing. East wind increasing to 50 to 80 km/h over
 exposed areas. High near 8.
Tonight..periods of rain tapering to showers overnight. Wind easing
 overnight. Low near 5.
Wednesday..cloudy with showers. Locally windy. High near 9.
Probability of precipitation in percent 80 today. 80 tonight and
 90 Wednesday.

Central coast - coastal sections.
Wind warning in effect.
Today..cloudy with periods of rain. Outflow wind locally 50 to
 70 km/h continuing. High 7.
Tonight..periods of rain. Wind easing overnight. Low 4.
Wednesday..rain tapering to showers. Locally high 7.
Probability of precipitation in percent 80 today. 80 tonight and
 90 Wednesday.

Central coast - inland sections.
Arctic outflow warning in effect.
Freezing rain warning in effect.
Today..cloudy with a few flurries. Steadier snow mainly southern
 sections. Areas of freezing rain. Outflow wind 50 to 70 km/h easing
 this afternoon. High minus 3.
Tonight..periods of snow or freezing rain. Gusty inflow wind.
 Low minus 7.
Wednesday..snow tapering to a few flurries. High minus 3.
Probability of precipitation in percent 80 today. 90 tonight and
 80 Wednesday.

North coast - coastal sections.
Wind warning in effect.
Today..cloudy with a few showers or flurries. Outflow wind 50 to
 90 km/h easing late this afternoon. High 3.
Tonight..cloudy with a few showers or flurries. Locally windy.
 Low minus 2.
Wednesday..cloudy with a few showers or flurries. Locally windy.
 High 2.
Probability of precipitation in percent 80 today. 80 tonight and
 80 Wednesday.

North coast - inland sections.
Arctic outflow warning in effect.
Today..mainly cloudy with a few flurries. Outflow wind continuing.
 High minus 5.
Tonight..cloudy with flurries likely. Low minus 10.
Wednesday..mainly cloudy with a few flurries. Outflow wind
 continuing. High minus 5.
Probability of precipitation in percent 80 today. 70 tonight and
 80 Wednesday.

Queen Charlottes.
Today..cloudy with showers. Windy. High 7.
Tonight..cloudy with showers likely. Locally windy. Low 3.
Wednesday..cloudy with a few showers. Locally windy. High 7.
Probability of precipitation in percent 80 today. 70 tonight and
 80 Wednesday.

End/cjd


688 
fpcn50 cwvr 121336
mountain forecast guidance for coastal British Columbia issued by the
Pacific weather centre of Environment Canada in Vancouver at 4 AM PST
Tuesday 12 December 1995 valid until midnight Wednesday.
The next scheduled guidance will be issued at 2 PM today.

Synopsis.
   Arctic outflow conditions continue across mainland areas of the
north and central coasts. In the south the layer of arctic air has
been scoured out of all but the deepest inland areas where patchy
freezing rain May still occur. The main weather producer today is
an intensifying low currently near 43n 131w. The low will continue
to deepen to 958 mb by this afternoon as it tracks northeastward to
the vicinity of comox by this evening. The low will then take an
easterly track across the coast mountains and weaken overnight to be
near Blue River as a 974 mb low by Wednesday morning. All models show
significant moisture strong winds and warm air accompanying the low.
Freezing levels will rise to near 2700 metres in the south today but
fall sharply behind the low Wednesday. By Wednesday afternoon a
diffluent westsouthwest flow develops over the coast. This will
result in a temporary hiatus from the heavy rains as the main strom
track shifts farther south.
   Some precipitation and winds will likely creep up into the central
coast by afternoon but more northern areas should be spared the worst
of the weather.

Freezing level..near 2100 metres south with a surface freezing layer
extreme eastern sections. Freezing level rising to near 2700 metres
tonight. Surface north and central with a near or above freezing
layer aloft between about 500 and 1600 metres over the central and
north coast tonight.

Extended outlook.  Mild and wet conditions will continue as a west to
southwest flow aloft brings a series of systems across the south.
Generally cool and showery across north.

South coast mountains.
Warnings..heavy rain warning greater Vancouver lower Fraser Valley
howe Sound and Sunshine Coast. Freezing rain through the Whistler
corridor. Snowfall warning eastern Fraser Valley and Whistler.
Wind warnings Vancouver Fraser Valley howe Sound and Sunshine Coast.
Light precipitation this morning becoming moderate this afternoon and
moderate to heavy overnight. Precipitation becoming light again late
Wednesday morning.
Mountaintop winds southeasterly 30 to 50 km/h increasing to 60 to 90
km/h by afternoon. Winds becoming southwest 50 to 80 km/h overnight.

Central coast mountains.
Warnings..freezing rain arctic outflow and wind warnings.
Light precipitation becoming locally moderate tonight and Wednesday
morning mainly southern sections.
Mountaintop winds..south to southeast 30 to 50 km/h rising to
to 50 to 80 southern sections this afternoon. Wind becoming
southwesterly 60 to 90 km/h Wednesday.

North coast mountains.
Warnings..arctic outflow and wind warnings. Light precipitation through
Wednesday.
Mountaintop winds..east to southeast 20 to 40 km/h.

Confidence..fair. Systems are moving in very fast from southwest.
This makes timing of precip and winds difficult.

This mountain weather forecast was produced for British Columbia
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/bdr