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345 
Fpcn11 cwvr 232330
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 4 PM PST Thursday 23 november 1995
for tonight Friday and Saturday.
The next scheduled forecast will be issued at 7 PM.

Synopsis for coastal BC.
  The frontal system that brought wind and rain to the coast this
morning is now moving over into alberta.  In behind some breaks are
developing but cloud and some shower activity will linger over the
coast tonight.  On Friday another disturbance will spread periods of
rain to the south coast while showers linger over the north coast.
This unsettled and showery pattern will continue Saturday.
Temperatures will continue mild with highs four or five degrees above
normal for late november.

Freezing level..near 2500 metres in the south to near 1500 metres in
the north.  Lowering to 1700 metres in the south and 1200 metres in
the north Friday.

Greater Vancouver.
Tonight..cloudy with occasional clear breaks. Chance of showers.
 Windy this evening. Patchy fog overnight. Low 7.
Friday..cloudy. Rain beginning midday. Windy. High 13.
Saturday..cloudy with showers. Windy. Low 6. High 13.
Probability of precipitation in percent 40 tonight. 100 Friday and
 90 Saturday.

Greater Victoria.
Tonight..cloudy with occasional clear breaks. Chance of showers.
 Windy this evening. Patchy fog overnight. Low 6.
Friday..cloudy. Rain beginning midday. Windy. High 13.
Saturday..cloudy with showers. Windy. Low 5. High 12.
Probability of precipitation in percent 40 tonight. 100 Friday and
 90 Saturday.

Lower Fraser Valley.
Tonight..mainly cloudy. A few showers. Patchy fog. Low 7.
Friday..cloudy. Rain beginning midday. Windy. High 12.
Saturday..cloudy with showers. Windy. Low 4. High 10.
Probability of precipitation in percent 80 tonight. 100 Friday and
 90 Saturday.

Whistler.
Tonight..cloudy. A few showers. Patchy fog. Low 1.
Friday..cloudy. Rain beginning midday. High 4.
Saturday..cloudy with showers. Windy. Low zero. High 4.
Probability of precipitation in percent 80 tonight. 100 Friday and
 90 Saturday.

Howe Sound.
Heavy rain warning ended.
Tonight..mainly cloudy. A few showers. Low 6.
Friday..cloudy. Rain beginning midday. High 9.
Saturday..cloudy with showers. Windy. Low 4. High 10.
Probability of precipitation in percent 80 tonight. 100 Friday and
 90 Saturday.

Sunshine Coast
east Vancouver Island.
Tonight..cloudy with occasional clear breaks. Chance of showers.
 Low 6.
Friday..cloudy with rain beginning near midday. High 10.
Saturday..cloudy with showers. Windy. Low 4. High 10.
Probability of precipitation in percent 40 tonight. 100 Friday and
 90 Saturday.

West Vancouver Island.
Tonight..cloudy with occasional clear breaks. Chance of showers.
 Low 5.
Friday..cloudy. Rain beginning in the morning. High 11.
Saturday..cloudy with showers. Low 3. High 8.
Probability of precipitation in percent 60 tonight. 100 Friday and
 90 Saturday.

North Vancouver Island.
Tonight..cloudy with occasional clear breaks. Chance of showers.
 Windy. Low 5.
Friday..cloudy with showers. Windy. High 11.
Saturday..cloudy with showers. Windy. Low 3. High 8.
Probability of precipitation in percent 60 tonight. 100 Friday and
 90 Saturday.

Central coast.
Tonight..cloudy. Chance of showers. Windy. Low 5 coast to 1 inland.
Friday..cloudy with showers. Windy. High 11 coast to zero inland.
Saturday..cloudy with a few showers. Windy. Low 3 coast to zero
 inland. High 9 coast to 5 inland.
Probability of precipitation in percent 60 tonight. 90 Friday and
 90 Saturday.

North coast - coastal sections.
Tonight..cloudy with showers. Windy. Low 6.
Friday..cloudy with showers. Windy. High 10.
Saturday..cloudy with a few showers. Low 3. High 9.
Probability of precipitation in percent 90 tonight. 100 Friday and
 90 Saturday.

North coast - inland sections.
Tonight..cloudy with showers. Low 1.
Friday..cloudy with showers. High 4.
Saturday..cloudy with a few showers. Windy. Low zero. High 5.
Probability of precipitation in percent 90 tonight. 80 Friday and
 80 Saturday.

Queen Charlottes.
Tonight..cloudy with occasional clear breaks. A few showers. Windy.
 Low 6.
Friday..cloudy with showers. Windy. High 10.
Saturday..cloudy with showers. Windy. Low 4. High 9.
Probability of precipitation in percent 80 tonight. 80 Friday and
 90 Saturday.

End/db


510 
fpcn50 cwvr 232137
mountain weather forecast for coastal British Columbia issued by the
Pacific weather centre of Environment Canada in Vancouver at 2:00 PM
PST Thursday 23 november 1995 valid until midnight Friday.  The next
scheduled forecast will be issued at 6:00 AM PST Friday.

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.
At 500 mb a flat upper ridge continues along the BC/alta border with
an upper low at 53 n 153 w. This maintains a diffluent southwest
flow aloft over the coast with the main frontal zone east-northeast
to west-southwest through the mouth of the columbia r. Considerable
debris cloud remains trapped along the coast mountains in the wake
of this mornings frontal passage. This moisture combined with
diffluence and cooling aloft will maintain continued convective
precip over the entire coast tonight. Another frontal wave will
develop along the baroclinic zone tonight and reach the wash coast
about noon fri. Overrunning on the wave will spread steadier rain to
the south coast mountains mid to late morning fri. A weak upper
trough moving in phase with the wave May trigger some additional
convective precip over the central and north coasts fri afternoon.

Freezing level..in the south 2500 metres lowering to 2000 metres fri
morning and 1500 metres fri evening. Central coast..1500 metres
rising to 2200 metres fri morning and lowering to 1600 metres fri
evening. North coast..1500 metres lowering to 1300 metres fri
evening. Near 700 metres over extreme north sections.

Extended outlook.
The upper low will fill and move to the coast sat bringing cooling
aloft and renewed convective precip especially over the north coast
on sun a flat upper ridge will begin to build along the coast to
bring some brief stabilizing. By early mon the frontal stream will
shift north again to bring more rain and mild temperatures.

South coast mountains.
Warnings.. None.
Occasional light convective precip tonight. Light occasional
moderate mid morning fri to mid evening then light convective.
Mountaintop winds..southwest 30 to 50 km/h.

Location        precip to 4am   precip 4am-4pm   min  max
                Friday          Friday
squamish        6-15            15-30             3     6
duffey lk       1-5             6-15              0     2
allison pass    1-5             6-15             -1     2
Fraser canyon   6-15            6-15              4     7

central coast mountains.
Warnings.. None.
Spotty light convective tonight. Light fri.
Mountaintop winds..southwest 30 to 50 km/h.

Location        precip to 4am   precip 4am-4pm   min  max
                Friday          Friday
heckman pass    0-1             1-5               0     2


north coast mountains.
Warnings.. None.
Occasional light convective through fri except for some local
moderate fri
afternoon.
Mountaintop winds..southwest 25 to 40 km/h.

Location        precip to 4am   precip 4am-4pm   min  max
                Friday          Friday
terrace tyee    1-5             1-5               4     7
bear pass       1-5             1-5               0     1
ningunsaw pass  1-5             1-5              -2     1
telegraph crk   0-1             1-5             -10    -2

confidence..fair. Exact track of next wave is a little uncertain. It
could go further south.  However there should be ample convective
precip even if the actual wave misses. As always amounts with
convective precip are uncertain.

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