| CHAMONIX VALLEY AND MONT-BLANC AREA WEATHER FORECAST |
| ISSUED AT 08:33 SATURDAY JULY 31 2010Copyright © 2009, chamonix-meteo.com |
| VALID FROM : SATURDAY JULY 31 2010 -- UNTIL : THURSDAY AUGUST 05 2010 |
| GENERAL SYNOPSIS |
| High cell 1019 hpa over Germany and the Northern Alps, 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 morning. Active thundery disturbance crossing over between Sunday evening and Tuesday morning. |
| TODAY - SATURDAY JULY 31 2010 |
| Fair summer weather - cool in the morning - warm later |
| SKY CONDITIONS (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. |
| - | mid mountain : variable light in the morning - afternoon thermal breezes. | |
| - | high mountain : NNW -> WNW moderate. |
| TEMPERATURE : min +6°C - max +24°C - morning inversion towards 1400 m. |
| ISOTHERM 0°C : | 4200 -> 4400 m. |
| ISOTHERM -10°C : | 6000 m. |
| OVERNIGHT |
| Clear - mild at first - cool by dawn |
| SKY CONDITIONS (cloud) : clear or partly cloudy. |
| PRECIPITATION : none. |
| WIND | - | aloft : WNW -> W moderate. |
| TEMPERATURE : +8°C - inversion towards 1400 m. |
| TOMORROW - SUNDAY AUGUST 01 |
| Fairly sunny and warm - becoming sultry and unsettled during the afternoon |
| SKY CONDITIONS (cloud - sunshine) : clear in the morning - becoming cloudy with sunny spells in the afternoon - locally mostly cloudy towards the evening - period of sunshine close to 70%. |
| PRECIPITATION : isolated thundery showers or thunderstorms likely towards the evening. |
| WIND | - | aloft : W -> WSW moderate. |
| TEMPERATURE : | min +8°C - max +28°C - morning inversion towards 1400 m. |
| MONDAY AUGUST 02 |
| Frequent showers - locally heavy with thunderstorm - cooler |
| SKY CONDITIONS (cloud - sunshine) : mostly cloudy - cloudy at times with fleeting sunny spell - period of sunshine close to 20%. |
| PRECIPITATION : frequent showers - locally heavy with thunderstorm in the afternoon - rain-snow limit towards 3400 m. |
| WIND | - | aloft : WSW -> W moderate. |
| TEMPERATURE : | dropping highs. |
| EXTENDED OUTLOOK UNTIL THURSDAY AUGUST 05 2010 |
| Tuesday : fairly sunny - still slightly unsettled. Wednesday and Thursday : sunny and warm. |
| Forecast reliability : fairly good until Monday - poor thereafter. |
| Reports | ||
|
Chamonix-ville 45.9 N 6.9 E - Altitude 1042 m 31 July 07:00 Temperature +6 °C Relative humidity 100 % Wind 0 km/h Pressure 1019 hpa - rising slightly Pressure at 1042 m 899 mb Precipitation last 6h 0.0 mm Skies clear Visibility 55000 m |
Aiguille du Midi Altitude 3845 m 31 July 07:00 Temperature -2 °C Wind W 25 km/h Relative humidity % |
Le Lac Blanc Altitude 2330 m 31 July 07:00 Snow depth 0 cm Wind 5 km/h Gusts -- km/h Temperature +7 °C Relative humidity -- % |
| 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 |