Chamonix Weather Report - 12/03/10

GENERAL SYNOPSIS
High, 1032 hpa Northwestern Ireland, drifting slowly south while strengthening. Low 1007 hpa, Tyrrhenian Sea, drifting northeast while filling slowly. Changeable and cold condition over the Western Alps with NE wind and easterly cloudiness income, persisting until Friday. Altitude cold drop crossing over from the north by Saturday, triggering some more instability. Improving on Sunday.

TODAY - THURSDAY MARCH 11 2010
Cloudy - very cold
SKY CONDITIONS (cloud - sunshine) : high cloud with sunny spells in the morning - becoming mostly cloudy - period of sunshine close to 30%.
PRECIPITATION : possible snowflurries from the northeast in the afternoon.
WIND  - ground level : variable light.
- mid mountain : mainly N - light.
- high mountain : ENE light to moderate.
TEMPERATURE : min -8°C - max 0°C.
ISOTHERM 0°C :  900 -> 1100 m.
ISOTHERM -10°C :  2400 -> 2600 m.

OVERNIGHT
Cloudy - very cold
SKY CONDITIONS (cloud) : mostly cloudy - locally cloudy towards the end of the night.
PRECIPITATION : possible snowflurries at first - dry later.
WIND  - aloft : NE -> NNE moderate.
TEMPERATURE : -6°C.

TOMORROW - FRIDAY MARCH 12
Fairly sunny - cold
SKY CONDITIONS (cloud - sunshine) : cloudy early in the morning - becoming clear or partly cloudy - period of sunshine close to 70%.
PRECIPITATION : none.
WIND  - aloft : NNE -> NW light to moderate.
TEMPERATURE :  min -6°C - max +3°C.

SATURDAY MARCH 13
Mainly cloudy - light snow at times
SKY CONDITIONS (cloud - sunshine) : mostly cloudy - overcast at times - period of sunshine close to 10%.
PRECIPITATION : light scattered showers - rain-snow limit towards 600 m.
WIND  - aloft : variable light -> NE moderate.
TEMPERATURE :  slightly rising lows.

EXTENDED OUTLOOK UNTIL TUESDAY MARCH 16 2010
Sunday : fairly sunny - cold. Monday : mainly coudy - possible snowflurries. Tuesday : sunny - getting milder.
Forecast reliability : poor.
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