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Article #820Coastal BC -
From: weather
Date: Wed, 31 Jan 1996 00:00
Date: Wed, 31 Jan 1996 00:00
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Fpcn11 cwvr 312330
forecasts for coastal British Columbia issued by the Pacific weather
centre of Environment Canada at 4 PM PST Wednesday 31 January 1996
for tonight Thursday and Friday.
The next scheduled forecast will be issued at 7 PM.
Synopsis for coastal BC.
The cold dome of arctic air remains over most of the province and
will continue to give cold and mainly clear weather to the south
coast tonight and Thursday. A weak weather system will brush
northern b.c. Spreading cloudy periods to the north coast from time
to time. Strong gusty outflow winds continue through many inlets and
valleys along the coast and arctic outflow warnings continue for the
north and central coasts as well as the Fraser Valley. Elsewhere the
combination of wind and cold temperatures is not sufficient to meet
the windchill criteria for arctic warnings but temperatures will
remain well below normal.
Freezing level..at the surface.
Greater Vancouver.
Tonight..clear. Low minus 5 to minus 9.
Thursday..mainly sunny. High 3.
Friday..sunny. Low minus 4 to minus 8. High 3.
Probability of precipitation in percent zero tonight. Zero Thursday
and zero Friday.
Greater Victoria.
Tonight..clear. Locally windy. Low minus 2 to minus 9.
Thursday..sunny. Locally windy. High 4.
Friday..sunny. Locally windy. Low minus 2 to minus 8. High 3.
Probability of precipitation in percent zero tonight. Zero Thursday
and zero Friday.
Lower Fraser Valley.
Arctic outflow warning in effect.
Tonight..clear. Outflow wind northeast 40 km/h with gusts to 70 km/h
giving moderate windchill. Low minus 8 to minus 14.
Thursday..mainly sunny. Outflow wind northeast 40 km/h with gusts
to 50 km/h. High plus 2 except near minus 5 eastern sections.
Friday..mainly sunny. Low minus 7 to minus 12. High plus 2 to minus
5.
Probability of precipitation in percent zero tonight. Zero Thursday
and zero Friday.
Whistler.
Tonight..clear. Low minus 20.
Thursday..sunny. High minus 8.
Friday..sunny. Low minus 18. High minus 8.
Probability of precipitation in percent zero tonight. Zero Thursday
and zero Friday.
Howe Sound.
Tonight..clear. Northeast wind 30 to 50 km/h. Low minus 8.
Thursday..sunny. Northeast wind 30 to 50 km/h. High 3.
Friday..sunny. Windy. Low minus 8. High 3.
Probability of precipitation in percent zero tonight. Zero Thursday
and zero Friday.
Sunshine Coast
east Vancouver Island.
Tonight..clear. Low minus 10 to minus 15.
Thursday..mainly sunny. High 2.
Friday..sunny. Low minus 8 to minus 12. High 3.
Probability of precipitation in percent zero tonight. Zero Thursday.
And zero Friday.
West Vancouver Island.
Tonight..clear. Locally windy. Low minus 3 to minus 8.
Thursday..sunny. Locally windy. High 4 to 8.
Friday..mainly sunny. Low minus 2 to minus 6. High 4 to 8.
Probability of precipitation in percent zero tonight. Zero Thursday
and zero Friday.
North Vancouver Island.
Tonight..clear. Locally windy. Low minus 2 to minus 8.
Thursday..sunny. Locally windy. High plus 2.
Friday..mainly sunny. Locally windy. Low minus 4. High 3.
Probability of precipitation in percent 10 tonight. 10 Thursday and
10 Friday.
Central coast.
Arctic outflow warning in effect.
Tonight..mainly clear. Outflow wind northeast up to 80 km/h
generating moderate to high windchill. Low minus 4 coast to minus 14
inland.
Thursday..mainly sunny. Outflow wind continuing. High near zero.
Friday..mainly sunny. Windy. Low minus 3 coast to minus 12 inland.
High near zero.
Probability of precipitation in percent 10 tonight. 10 Thursday and
10 Friday.
North coast.
Arctic outflow warning in effect.
Tonight..cloudy periods. Outflow wind northeast up to 70 km/h
generating high windchill. Low minus 10 coast to minus 17 inland.
Thursday..sunny with cloudy periods. Outflow wind continuing.
High near zero coast to minus 10 inland.
Friday..becoming cloudy. Windy. Minus 2 coast to minus 15 inland.
High plus 2 coast to minus 8 inland.
Probability of precipitation in percent zero tonight. 10 Thursday and
20 Friday.
Queen Charlottes.
Tonight..cloudy periods. Locally windy. Low minus 3.
Thursday..cloudy with sunny periods. Locally windy. High plus 1.
Friday..mainly cloudy. Low zero. High 5.
Probability of precipitation in percent 10 tonight. 20 Thursday and
20 Friday.
End/db
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
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 100886,f1adf5d69219d837 X-Google-Attributes: gid100886,public From: weather@wimsey.com Subject: Coastal BC - Date: 1996/01/31 Message-ID: <P96031.182013.676@vanbc.wimsey.com> X-Deja-AN: 138647781 sender: news@wimsey.com references: <P96031.112028.24777@vanbc.wimsey.com> supersedes: <P96031.112028.24777@vanbc.wimsey.com> organization: Wimsey Information Services newsgroups: bc.weather