CHAMONIX VALLEY AND MONT-BLANC AREA WEATHER FORECAST


Natsume Sôseki
Winter mountain
Look there is
An invivisible trailer
ISSUED AT 07:50 TUESDAY JANUARY 17
VALID FROM : TUESDAY JANUARY 17 ‑‑ UNTIL : SUNDAY JANUARY 22 2017

GENERAL SYNOPSIS
Extended high, west of Biscaye Bay to Southern Scandinavia, currently toping towards 1036 hpa over the Netherlands, refocusing over Poland while strengthening beyond 1040 hpa by Wednesday; low 999 hpa, Southern Tyrrhenian Sea, filling towards 1005 hpa by the same time. • These two opposing areas are channeling a sustained northeasterly stream along the Alpine Range, very cold, which begins to decrease while getting more settled. • Sunny yet intensely cold condition at any altitude today, with less wind high up. • This new wintry anticyclonic spell, might be persisting until the beginning of next week.
TODAY - TUESDAY JANUARY 17
Sunny ‑ instensely cold at all altitudes
SKY CONDITION : clear or partly cloudy. Period of sunshine close to 90%.
PRECIPITATION : none.
WIND - ground level : mainly NE ‑ light.
WIND - mid mountain : NE moderate ‑ locally moderate to strong at times.
WIND - high mountain : ENE moderate ‑> light to moderate.
TEMPERATURE : low ‑15°C - high ‑6°C.
ISOTHERM 0°C : < 500 m.
ISOTHERM -10°C : 1300 ‑> 2100 m.
ROAD CONDITION  : @ 07:00, clear skies, temperature below -10°C. Slippery roadways.morelive precipitation radar over the Alps
OVERNIGHT
Clear skies ‑ intensely cold ‑ temperature inversion likely
SKY CONDITION : clear or partly cloudy.
PRECIPITATION : none.
WIND - aloft : ENE light to moderate.
TEMPERATURE : low ‑16°C - temperature inversion toward 1500 m.
WEDNESDAY JANUARY 18
Sunny ‑ instensely cold, yet getting slightly milder in the afternoon
SKY CONDITION : clear. Period of sunshine close to 100%.
PRECIPITATION : none.
WIND - aloft : ENE ‑> ESE light to moderate.
TEMPERATURE : low ‑16 °C - high ‑7°C.
THURSDAY JANUARY 19
Sunny ‑ cold becoming less intense
SKY CONDITION : clear or partly cloudy. Period of sunshine close to 95%.
PRECIPITATION : none.
WIND - aloft : E light to moderate ‑> SE light.
TEMPERATURE : slightly rising highs.
EXTENDED OUTLOOK UNTIL SUNDAY JANUARY 22 2017

Friday and Saturday : sunny ‑ stratus cloud risk in the morning ‑ temperatures almost matching seasonal averages. Sunday : uncertain ‑ fairly sunny ‑ cloud passings ‑ cold.

Forecast reliability : fairly good until Thursday ‑ poor thereafter.

ReportsAs a reminder, today in Chamonix, the sun rises at 08:07:35 and goes down at 17:18:41.
45.55 N 6.51 E - Altitude 1040 m
17 January 08:00
Temperature -15°C
Relative humidity 84%
Wind 0 km/h
Sea level pressure 1013 hpa - rising slowly
Pressure at 1042 m 898 mb
Precipitation last 6h 0.0 mm
Skies partly cloudy
Visibility 90000 m
Altitude 3845 m
17 January 07:00
Temperature -22°C
Wind ENE 25 km/h
Altitude 2250 m
17 January 06:00
Snow depth < 10 cm
Wind 40 km/h
Gusts 50 km/h
Temperature -18°C