This is it the next three days of sun, snow, hot or cold, or a complete mixture of all four probably! Of course being the mountains conditions can change rapidly and can even be different from one side of the valley to the other. Make sure you head out prepared for all conditions - don't forget your sunscreen, hat, gloves, thermal pants, and sun-glasses/goggles; inevitably you will use them all.
VALID FROM : MONDAY MARCH 15 -- UNTIL : SATURDAY MARCH 20 2010
GENERAL SYNOPSIS
High, 1033 hpa Channel Entrance, drifting slowly southeast while weakening. Stable and gradually milder condition until the end of the week. Possibly unsettled thereafter.
TODAY - MONDAY MARCH 15 2010
Fairly sunny - cloud possibly crossing over from the north
SKY CONDITIONS (cloud - sunshine) : clear or partly cloudy - cloudy at times from the north - period of sunshine close to 80%.
PRECIPITATION : none.
WIND
-
ground level : variable light - locally moderate in the afternoon.
-
mid mountain : NNE light - moderate at times.
-
high mountain : N moderate - moderate to strong at times.
TEMPERATURE : min -4 °C - max +5 °C.
ISOTHERM 0 °C :
800 -> 1200 m.
ISOTHERM -10 °C :
2500 m.
OVERNIGHT
Cloud crossing over from the north - cold
SKY CONDITIONS (cloud) : partly cloudy to cloudy.
PRECIPITATION : none.
WIND
-
aloft : NNW moderate to strong.
TEMPERATURE : -6 °C.
TOMORROW - TUESDAY MARCH 16
Fine weather - mild on sunny slopes in the afternoon
SKY CONDITIONS (cloud - sunshine) : locally cloudy early in the morning - otherwise clear or partly cloudy - period of sunshine close to 90%.
PRECIPITATION : none.
WIND
-
aloft : mainly N - moderate to strong.
TEMPERATURE :
min -6 °C - max +8 °C.
WEDNESDAY MARCH 17
Fine weather - mild in the afternoon
SKY CONDITIONS (cloud - sunshine) : clear or partly cloudy - period of sunshine close to 100%.
PRECIPITATION : none.
WIND
-
aloft : WNW moderate.
TEMPERATURE :
rising highs.
EXTENDED OUTLOOK UNTIL SATURDAY MARCH 20 2010
Thursday : sunny - very mild in the afternoon. Friday and Saturday : changeable and mild - sunny spells - cloud crossing over.
Forecast reliability : fairly good until Thursday - poor thereafter.
Reports
Chamonix-ville
45.9 N 6.9 E - Altitude 1042 m 15 March 07:00
Temperature -4 °C Relative humidity 95 % Wind 0 km/h Pressure 1028 hpa - rising slightly Pressure at 1042 m 905 mb Precipitation last 6h 0.0 mm Skies clear Visibility 40000 m
Aiguille du Midi Altitude 3845 m 15 March 07:00
Temperature -19 °C Wind N 20 km/h Relative humidity %
Le Lac Blanc Altitude 2330 m 15 March 07:00
Snow depth 155 cm Wind 20 km/h Gusts -- km/h Temperature -12 °C Relative humidity -- %
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