| CHAMONIX VALLEY AND MONT-BLANC AREA WEATHER FORECAST |
| ISSUED AT 08:20 FRIDAY MAY 09 2008 |
| VALID FROM : FRIDAY MAY 09 -- UNTIL : WEDNESDAY MAY 14 2008 |
| GENERAL SYNOPSIS |
| High ridge 1022-1017 hpa, Denmark to Central Mediterranea, weakening slightly from the west. Thundery low 1008 hpa over Spain, driving a light southerly stream towards the Alps. Instability is expected to increase from Sunday |
| TODAY - FRIDAY MAY 09 2008 |
| Fairly sunny - cool in the morning - warm in the afternoon - light fœhn wind likely |
| SKY CONDITIONS (cloud - sunshine) : clear or partly cloudy - cumulus cloud growing over the slopes during the afternoon while thin high cloud comes in from the southwest - period of sunshine close to 80%. |
| PRECIPITATION : none. |
| WIND | - | ground level : calm in the morning - possible afternoon fœhn wind puffs. |
| - | mid mountain : mainly SE - light. | |
| - | high mountain : SE light. |
| TEMPERATURE : min +4°C - max +24°C. |
| ISOTHERM 0°C : | 2900 -> 3200 m. |
| ISOTHERM -10°C : | 4200 -> 4500 m. |
| OVERNIGHT |
| Clear and cool |
| SKY CONDITIONS (cloud) : partly cloudy after sunset - clearing. |
| PRECIPITATION : none. |
| WIND | - | aloft : S -> E light. |
| TEMPERATURE : +5°C. |
| TOMORROW - SATURDAY MAY 10 |
| Sunny - cool in the morning - warm in the afternoon |
| SKY CONDITIONS (cloud - sunshine) : clear or partly cloudy - period of sunshine close to 90%. |
| PRECIPITATION : none |
| WIND | - | aloft : NE -> SE light. |
| TEMPERATURE : | min +5°C - max +25°C. |
| SUNDAY MAY 11 |
| Fairly sunny - cool in the morning - warm with thunderstorm risk in the afternoon |
| SKY CONDITIONS (cloud - sunshine) : clear or partly cloudy in the morning - becoming cloudy or locally mostly cloudy in the afternoon due to cumulus cloud growth - period of sunshine close to 70%. |
| PRECIPITATION : thunderstorm risk towards the latter part of the afternoon - rain-snow limit towards 2500 m. |
| WIND | - | aloft : NE -> SE light. |
| TEMPERATURE : | slightly dropping highs. |
| EXTENDED OUTLOOK UNTIL WEDNESDAY MAY 14 2008 |
| Monday to Wednesday : fairly sunny but unsettled - warm in the afternoon with thundery shower risk - outlook is uncertain. |
| Forecast reliability : fairly good until Sunday - poor thereafter. |
| Reports | ||
|
Chamonix-ville 45.9 N 6.9 E - Altitude 1042 m 9 May 07:00 Temperature +4 °C Relative humidity 95 % Wind 0 km/h Pressure 1016 hpa - falling slightly Pressure at 1042 m 898 mb Precipitation last 6h 0.0 mm Skies clear Visibility 40000 m |
Aiguille du Midi Altitude 3845 m 9 May 07:00 Temperature -6 °C Wind E 5 km/h Relative humidity % |
Le Lac Blanc Altitude 2330 m 9 May 07:00 Snow depth 170 cm Wind 10 km/h Gusts -- km/h Temperature +3 °C Relative humidity -- % |
| w w w . c h a m o n i x - w e a t h e r . c o m Chamonix Valley and Mont-Blanc area weather information service |
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