Weather update – 22.02.07

More snow forecast for this weekend:

GENERAL SYNOPSIS
Weak high cell 1016 hpa over Switzerland, weakening. Complex low area 962-972 hpa far northwest of the British Isles, drifting east. Linked disturbance expected to reach the Alps by Saturday
TODAY – THURSDAY FEBRUARY 22 2007
Fairly sunny – cold in the morning – mild on sunny slopes later
SKY CONDITIONS (cloud – sunshine) : clear or partly cloudy – high cloud coming in from the west towards the evening – period of sunshine close to 90%.
PRECIPITATION : none.
WIND  ground level : variable light.
  mid mountain : SSW light to moderate.
  high mountain : variable -> SW light to moderate.
TEMPERATURE : min -3°C – max +11°C.
ISOTHERM 0°C :  1800 -> 2000 m.
ISOTHERM -10°C :  3800 m.
OVERNIGHT
Cloudy
SKY CONDITIONS (cloud) : cloudy – partly cloudy at times.
PRECIPITATION : none.
WIND  aloft : SW light.
TEMPERATURE : -4°C.
TOMORROW – FRIDAY FEBRUARY 23
Changeable – scattered cloud crossing over – slight evening precipitation risk
SKY CONDITIONS (cloud – sunshine) : partly cloudy in the morning – becoming cloudy – high cloud coming in from the west in the afternoon, fairly thick at times – period of sunshine close to 50%.
PRECIPITATION : slight late afternoon shower risk
WIND  aloft : SW light to moderate.
TEMPERATURE :  min -4°C – max +9°C.
SATURDAY FEBRUARY 24
Mainly cloudy – rain in the afternoon
SKY CONDITIONS (cloud – sunshine) : mostly cloudy – cloudy at times in the morning with fleeting sunny spell – overcast in the afternoon – period of sunshine close to 100%.
PRECIPITATION : starting up towards the middle of the day – light at first – moderate at times towards the evening – rain-snow limit towards 1300 m.
WIND  aloft : SW moderate -> NW strong.
TEMPERATURE :  dropping highs.
EXTENDED OUTLOOK UNTIL TUESDAY FEBRUARY 27 2007
Sunday : gloomy – light to moderate precipitation – rain-snow limit dropping towards 1000 m. Monday : changeable and cold – morning snow showers – sunny spells spreading out in the afternoon. Tuesday : changeable – slight shower risk – getting milder.
Forecast reliability : fairly good until Sunday – poor thereafter.