CHAMONIX VALLEY AND MONT-BLANC AREA WEATHER FORECAST


Matsuo Bashō
First celebrate
The flowers in your heart
Confined in winter
ISSUED AT 19:40 ON WEDNESDAY MARCH 04, 2015
VALID FROM : WEDNESDAY MARCH 04 -- UNTIL : TUESDAY MARCH 10 2015

GENERAL SYNOPSIS
Today's unsettled system is moving away eastward, allowing for a polar air mass to slide along the eastern flank of the 1040 hpa high which is expected over Southern Brittany towards the latter part of the night. Deepening minimum east of Corsica, by the same time, will tighten the isobaric lines over the Alpine range and therefore cause a severe northeasterly gale high up on Thursday, decreasing but slightly on Friday. High pattern currently setting up will seemingly be long-lasting, and probably launch spring condition next week.
WEDNESDAY EVENING MARCH 04 - AND OVERNIGHT
Getting colder - increasing wind with clear spells spreading out high up
SKY CONDITION : mostly cloudy - becoming cloudy with clear spells - mainly high up - low cloud possibly condensing down in the valley.
PRECIPITATIONradarlive precipitation over the Alps : probably none.
WIND - ground level : NE light to moderate.
WIND - mid mountain : N light to moderate -> NNE strong.
WIND - high mountain : NNW moderate -> NNE strong.
TEMPERATURE : low -5°C.
ISOTHERM 0°C : 700 -> 500 m.
ISOTHERM -10°C : 2200 -> 2100 m.
Same weather in the bordering Valais. More extended clear spells and northerly fœhn wind over the Aosta Valley.
ROAD CONDITION  : @ 19:30, wintry condition - locally snow covered roadways.morelive precipitation radar over the Alps
TOMORROW - THURSDAY MARCH 05
Cloudy with sunny spells ‑ cold - severe gale high up
SKY CONDITION : cloudy with sunny spells, brighter high up. period of sunshine close to 65%.
PRECIPITATION : none.
WIND - ground level : NE light to moderate.
WIND - mid mountain : NNE strong.
WIND - high mountain : NE strong -> NNE severe gale.
TEMPERATURE : low -5°C - high +2°C.
ISOTHERM 0°C : 500 -> 1100 m.
ISOTHERM -10°C : 2100 -> 2600 m.
Same weather in the bordering Valais. Sunny and milder with northerly fœhn wind over the Aosta Valley.
THURSDAY TO FRIDAY NIGHT - MARCH 05 TO 06
Clear high up - very cold by dawn
SKY CONDITION  : becoming clear or partly cloudy high up.
PRECIPITATION : none.
WIND - aloft : NNE severe gale -> NE strong.
TEMPERATURE : low -7°C.
Same weather in the bordering Valais. Milder with northerly fœhn wind over the Aosta Valley.
FRIDAY MARCH 06
Sunny - cold in the morning - getting milder in the afternoon ‑ windy high up
SKY CONDITION : clear or partly cloudy. Period of sunshine close to 90%.
PRECIPITATION : none.
WIND - aloft : NE strong -> N moderate to strong.
TEMPERATURE : low -7 °C - high +6°C.
Same weather in the bordering Valais. Milder in the Aosta Valley.
SATURDAY MARCH 07
Sunny ‑ getting noticeably milder ‑ windy high up from the northeast
SKY CONDITION : clear or partly cloudy. Period of sunshine close to 90%.
PRECIPITATION : none.
WIND - aloft : NE moderate to strong - strong at times.
TEMPERATURE : low -5°C - high +12°C.
Uncertain.
EXTENDED OUTLOOK UNTIL TUESDAY MARCH 10 2015

Sunday to Tuesday : sunny - cold in the morning ‑ mild in the afternoon ‑ windy high up from the northeast.

Forecast reliability : fairly good until Friday ‑ poor thereafter.

ReportsAs a reminder, today in Chamonix, the sun rises at 07:03:30 and goes down at 18:24:25.
45.55 N 6.51 E - Altitude 1040 m
4 March 08:00
Temperature 0°C
Relative humidity 95%
Wind 0 km/h
Sea level pressure 1026 hpa - steady
Pressure at 1042 m 902 mb
Precipitation last 6h 1.2 mm
Skies overcast - light snow
Visibility 1500 m
Altitude 3845 m
4 March 07:00
Temperature -14°C
Wind W 75 km/h
Altitude 2250 m
4 March 06:00
Snow depth 65 cm
Wind 20 km/h
Gusts 30 km/h
Temperature -5°C