An unusual Arctic airflow covers the UK as a col has formed to the west. The result is a NNE airflow with no imminent change expected. Unstable to day time temperatures further cloud development and possible showers are expected though the risk of thunderstorms is expected to remain LOW
Air Temperature: 08-10 Celsius, wind chill 05-06 Celsius
Weather: Small amounts of cloud and early mist/haze. As temperatures increase expect increasing cloud and and possible showers from 1300
Portsmouth HW 0720 LW 1308
KEY POINTS
- Feels cold with wind
- unstable offshore conditions: short period shifts 2-4 mins up to 20 deg, gusty conditions
- slight trend left but shifts will dominate and land effects funnelling the wind out of Southampton Water
- strongest breeze likely on white group course
- decreasing breeze, slow trend left with lighter wind- quick shift right with stronger breeze
Time
|
Wind Direction
|
Wind Speed (KNOTS)
|
Comments
|
0900-1100
|
360-030
|
14-18
|
Wind speed increasing through thee range as mist
clears- could be as light as 08 KT to begin with
|
1100-1300
|
360-020 backing 340-010
|
16-18 decreasing 12-16
|
Wind decreasing and then backing. Cumulus developing inland
|
1300-1500
|
340-010
|
12-16
|
Broken cloud spreading in
|
1500-1700
|
340-010
|
10-14
|
Little change slight decrease in surface wind with extensive cloud
cover
|
No comments:
Post a Comment