Chamonix Weather

05/08/2008 9:34 pm

Detailed Chamonix forecast provided by the Chamonix Tourist Office

chamonix-meteo.com - July 30, 2010 at 20:28

Chamonix weather information service : current conditions, webcams and forecasts for the Chamonix Valley and the Mont-Blanc Massif.

CHAMONIX VALLEY AND MONT-BLANC AREA WEATHER FORECAST© chamonix-meteo.com, 2010

ISSUED AT 20:28 FRIDAY JULY 30, 2010
VALID FROM : FRIDAY JULY 30 2010 -- UNTIL : THURSDAY AUGUST 05 2010

GENERAL SYNOPSIS

Weak high ridge Azores to Switzerland, changing to a low gradient area. The air mass is expected to remain dry and stable until an unsettled southwesterly stream is setting up by Sunday. Active thundery disturbance probably crossing over between Sunday evening and Tuesday morning.

FRIDAY EVENING JULY 30 - AND OVERNIGHT

Cloudy at first - clearing - almost cold by dawn

SKY CONDITION (cloud) : cloudy at first - becoming clear or partly cloudy.

PRECIPITATION : none.

WIND - ground level : variable light.

WIND - mid mountain : variable light.

WIND - high mountain : N moderate to strong -> NNW moderate.

TEMPERATURE : mini +5°C.

ISOTHERM 0°C : 3500 -> 4000 m.

ISOTHERM -10°C : 5500 -> 5800 m.

Temperature inversion above the valley. Snow surface re-freezing high up : fairly good, but short lasting.

TOMORROW - SATURDAY JULY 31

Sunny - cool in the morning - warm in the afternoon

SKY CONDITION (cloud - sunshine) : clear or partly cloudy - period of sunshine close to 100%.

PRECIPITATION : none.

WIND - ground level : variable light in the morning - moderate afternoon thermal breeze.

WIND - mid mountain : variable light.

WIND - high mountain : NNW -> WNW moderate.

TEMPERATURE : mini +5°C - maxi +24°C.

ISOTHERM 0°C : 4000 -> 4500 m.

ISOTHERM -10°C : 5800 -> 6100 m.

Fine summer condition.

SATURDAY TO SUNDAY NIGHT - AUGUST 31 TO 01

Clear - mild at first - cool by dawn

SKY CONDITION (cloud) : clear or partly cloudy.

PRECIPITATION : none.

WIND - aloft : WNW -> W moderate.

TEMPERATURE : mini +7°C.

Temperature inversion above the valley. Snow surface re-freezing high up : fairly good, but very short lasting.

SUNDAY AUGUST 01

Fairly sunny and warm - becoming sultry and unsettled during the afternoon

SKY CONDITION (cloud - sunshine) : clear in the morning - becoming cloudy in the afternoon - locally mostly cloudy towards the evening - period of sunshine close to 70%.

PRECIPITATION : isolated thundery showers or thunderstorms likely towards the latter part of the afternoon.

WIND - aloft : W -> WSW moderate to strong.

TEMPERATURE : mini +7°C - maxi +27°C.

Possible evening thunderstorm gust.

MONDAY AUGUST 02

Frequent showers - locally heavy with thunderstorm - cooler

SKY CONDITION (cloud - sunshine) : mostly cloudy - cloudy at times - period of sunshine close to 10%.

PRECIPITATION : Frequent showers - locally heavy with thunderstorm in the afternoon - rain-snow limit towards 3400 m.

WIND - aloft : WSW moderate to strong -> W moderate.

TEMPERATURE : mini +12°C - maxi +21°C.

Whether the disturbance shall be active or not is uncertain by now.

EXTENDED OUTLOOK UNTIL THURSDAY AUGUST 05 2010

Tuesday : fairly sunny - still slightly unsettled. Wednesday : sunny and warm. Thursday : sunny - evening thunderstorm risk.

Forecast reliability : fairly good until Monday - poor thereafter.

c h a m o n i xm e t e o . c o m

Chamonix Valley and Mont-Blanc area weather information service

Reports

Chamonix - Les Gaillands

45.55 N 6.51 E - Altitude 1028 m

30 July 19:00

Temperature +17°C

Relative humidity 60%

Wind 0 km/h

Sea level pressure 1015 hpa - rising slowly

Pressure at 1042 m 897 mb

Precipitation last 6h 0.0 mm

Skies cloudy -

Visibility 25000 m

Click the picture to start an overview slideshow of the weather condition in Chamonix during the last three hours - one shot every 15 mn. As a reminder, today in Chamonix, the sun rises at 6:13 and goes down at 21:3.

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