Saturday, April 21, 2012

Its a double whammy weekend- 21st-22nd April- Warsash Spring Championships

The first of the Warsash Spring Championships this weekend with things kicking off tomorrow in a gentle to moderate WNW airflow. Last week proved to be stronger winds than forecast in association with some fairly large cumulus clouds and this week we could see the same.

SYNOPTIC SITUATION
The heavy showers and rumbles of thunder experienced overnight and early this morning are slowly disappearing as a moderate WNW builds, but as temperature scrabble towards double figures again expect further showers and possible rumbles of thunder.
A gentle to moderate WNW backing WSW airflow is expect to cover the area

Air temperature: 09-11 Celsius

Weather: partly cloudy with showers clearing SE. Large cumulus developing turning to moderate showers late afternoon

KEY POINTS
- gradient driven with cloud features being key
- could see wind up to 28-30 KT after 1400-1500
- max right likely 300-310 with showers in the afternoon

Portsmouth: LW 0536 HW 1223


Time
Wind direction
Wind speed
Comments
0900-1100
270-300
08-12 becoming 06-08 at times
Initial showers/clouds clearing to leave sunny spells but clouds beginning to build
1100-1300
270-300 backing 250-290
08-12 building 15-19
Wind speed quick to build and wind range increasing as clouds develop
1300-1500
250-290
17-19 occasional 22
Large cloud dominated features
1500-1700

250-290
17-19 building 22-25
 Building gradient could touch 28 at times

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