CHAMONIX VALLEY AND MONT-BLANC AREA WEATHER FORECAST


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ISSUED AT 07:40 THURSDAY MARCH 21
VALID FROM : THURSDAY MARCH 21 ‑‑ UNTIL : TUESDAY MARCH 26 2019

GENERAL SYNOPSIS
High ridge stretching Brittany to Black Sea, featuring figures in the 1031 to 1036 hpa range. The whole will be refocusing over Austrian Alps by Friday, while starting up to weakening. • Currently decreasing ENE wind pattern (Bise wind) keeps sunny weather in our Region this Wednesday. • Morning temperature still noticeably below 0°C, however temporary altitude high ridge development from Subtropical Atlantic area causes milder atmosphere in the median altitude range. • That widespread milder spell is expected to persisting until cooler condition will be resuming in the first part of next week, depending on polar air inflow, Northwestern Russia to Adriatic Sea.
TODAY - THURSDAY MARCH 21
Fair weather ‑ cold in the morning ‑ windy at times high up
SKY CONDITION : clear. Period of sunshine close to 100%.
PRECIPITATION : none.
WIND - ground level : NE light ‑ SW at times towards the middle of the day.
WIND - mid mountain : E light to moderate ‑> ESE light.
WIND - high mountain : ENE moderate to strong ‑ E moderate.
TEMPERATURE : low ‑5°C - high +14°C.
ISOTHERM 0°C : 2700 ‑> 2900 m.
ISOTHERM -10°C : 4300 ‑> 4500 m.
ROAD CONDITION  : bare roadways on the whole. Melted waters nightly re-freezing. (Tue. 06:00).morelive precipitation radar over the Alps
OVERNIGHT
Clear skies ‑ rather chilly by dawn
SKY CONDITION : clear or partly cloudy ‑ thin high cloud at times.
PRECIPITATION : none.
WIND - aloft : E moderate ‑> light to moderate.
TEMPERATURE : low ‑4°C.
FRIDAY MARCH 22
Fair weather ‑ very mild in the afternoon and in the median altitude range
SKY CONDITION : clear. Period of sunshine close to 100%.
PRECIPITATION : none.
WIND - aloft : E light to moderate ‑> ESE light.
TEMPERATURE : low ‑5 °C - high °C.
SATURDAY MARCH 23
Fair weather ‑ warm afternoon in the valley ‑ mild in the median altitude range
SKY CONDITION : clear or partly cloudy. Period of sunshine close to 100%.
PRECIPITATION : none.
WIND - aloft : ENE light to moderate.
TEMPERATURE : rising highs.
EXTENDED OUTLOOK UNTIL TUESDAY MARCH 26 2019

Sunday : fairly sunny ‑ high cloud passings ‑ slightly dropping temperature. Monday : sunny spells and cloud passings ‑ getting further cold. Tuesday : partly sunny ‑ morning cloud ‑ sunny spells later ‑ north wind high up, fairly strong at times ‑ getting further cool.

Forecast reliability : fairly good until Saturday.

ReportsAs a reminder, today in Chamonix, the sun rises at 06:33:04 and goes down at 18:46:13.
45.55 N 6.51 E - Altitude 1040 m
March 21 07:00
Temperature -5°C
Relative humidity 86%
Wind NE 5 km/h
Sea level pressure 1027 hpa - rising slowly
Pressure at 1042 m 909 mb
Precipitation last 6h 0.0 mm
Skies clear -
snow depth at 1025 m : 17 cm
Visibility 100000 m
Altitude 3845 m
March 21 07:00
Temperature -11°C
Wind NE 20 km/h
Altitude 2250 m
March 21 06:00
Snow depth 238 cm
Wind 5 km/h
Gusts 10 km/h
Temperature +1°C