SYNOPTIC SITUATION
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 | 
17-19 building 22-25 | 
 Building gradient could touch   28 at times | 
 
 
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