Maison du Moulin Weather Briefing 03 Sep 10

chamonix-meteo.com

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 bulletin météo en français
ISSUED AT 19:09 FRIDAY SEPTEMBER 03, 2010
VALID FROM : FRIDAY SEPTEMBER 03 -- UNTIL : THURSDAY SEPTEMBER 09 2010

GENERAL SYNOPSIS
High 1024 hpa, North Sea, drifting slowly east while strengthening. Dry northwesterly stream over the area. Stable high condition persisting until Monday.
FRIDAY EVENING SEPTEMBER 03 - AND OVERNIGHT
Clear - cold towards dawn

SKY CONDITION (cloud) : clear.

PRECIPITATION : none.

WIND - ground level : variable light.

WIND - mid mountain : NNW light.

WIND - high mountain : NNW light to moderate -> moderate.

TEMPERATURE : mini +5°C.

ISOTHERM 0°C : 3700 -> 3500 m.

ISOTHERM -10°C : 5100 m.

Temperature inversion towards 1400 m. Snow surface re-freezing high up : good.

TOMORROW - SATURDAY SEPTEMBER 04
Sunny - cool in the morning - warm in the afternoon

SKY CONDITION (cloud - sunshine) : clear or partly cloudy - cumulus cloud growth over the slopes during the afternoon - period of sunshine close to 90%.

PRECIPITATION : none.

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

WIND - mid mountain : NW light.

WIND - high mountain : NNW -> NW moderate.

TEMPERATURE : mini +5°C - maxi +23°C.

ISOTHERM 0°C : 3500 -> 3700 m.

ISOTHERM -10°C : 5100 m.

Fair and fine condition high up.

SATURDAY TO SUNDAY NIGHT - SEPTEMBER 04 TO 05
Partly cloudy - fairly mild

SKY CONDITION (cloud) : clear or partly cloudy - high cloud crossing over towards the latter part of the night.

PRECIPITATION : none.

WIND - aloft : NW moderate.

TEMPERATURE : mini +8°C.

Snow surface re-freezing high up : fairly good.

SUNDAY SEPTEMBER 05
Sunny - cool in the morning - warm in the afternoon

SKY CONDITION (cloud - sunshine) : clear or partly cloudy - high cloud crossing over early in the morning - cumulus cloud growth over the slopes during the afternoon - period of sunshine close to 80%.

PRECIPITATION : none.

WIND - aloft : NW moderate.

TEMPERATURE : mini +8°C - maxi +23°C.

Fine condition high up.

MONDAY SEPTEMBER 06
Fairly sunny and warm - increasing cloud in the afternoon

SKY CONDITION (cloud - sunshine) : clear or partly cloudy - locally cloudy in the afternoon due to cumulus cloud growth - period of sunshine close to 70%.

PRECIPITATION : late afternoon shower slight risk.

WIND - aloft : NW moderate -> W light to moderate.

TEMPERATURE : mini +7°C - maxi +21°C.

Uncertain.

EXTENDED OUTLOOK UNTIL THURSDAY SEPTEMBER 09 2010

Tuesday to Thursday : a series of active disturbance is expected to crossing over the area - uncertain.

Forecast reliability : fairly good until Sunday - poor thereafter.

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

Chamonix Valley and Mont-Blanc area weather information service

© chamonix-meteo.com

Reports

Chamonix - Les Gaillands

45.55 N 6.51 E - Altitude 1028 m

3 September 19:00

Temperature +20°C

Relative humidity 50%

Wind SW 10 km/h

Sea level pressure 1015 hpa - steady

Pressure at 1042 m 898 mb

Precipitation last 6h 0.0 mm

Skies clear -

Visibility 50000 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 6:56 and goes down at 20:6.

Bulletin météo en français

Analysis chart Forecast chart (T+24)