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Old March 25th 17, 03:48 PM posted to uk.sci.weather
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Default Cornwall - Very Low humidity, very rapid drop - now near 20%

Take a look. Camborne 22% at 15:00. Remarkably it was 69% at 11:00, but only 25% an hour later. Somewhat higher at Cardinham - nearer 40%.

The sharp drop in humidity shows up well here at John Chappell's Land's End site. http://www.landsendweather.info/met/mainframe.htm

Also notice the strong & very gusty winds associated with the arrival of the low humidity.

Unbroken warm sunshine - but some very interesting variations.

Graham
Penzance

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Old March 25th 17, 05:38 PM posted to uk.sci.weather
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Default Cornwall - Very Low humidity, very rapid drop - now near 20%

On Saturday, March 25, 2017 at 3:48:49 PM UTC, Graham Easterling wrote:
Take a look. Camborne 22% at 15:00. Remarkably it was 69% at 11:00, but only 25% an hour later. Somewhat higher at Cardinham - nearer 40%.

The sharp drop in humidity shows up well here at John Chappell's Land's End site. http://www.landsendweather.info/met/mainframe.htm

Also notice the strong & very gusty winds associated with the arrival of the low humidity.

Unbroken warm sunshine - but some very interesting variations.

Graham
Penzance


It also reached 17.7C today, the warmest day of the year. The blustery wind during the afternoon, combined with very low humidity. made it feel rather less than that.

17.7C may not seem that significant to many, but it is in very maritime Penzance in March, when the SST is just above 10C. The wind was aligned with the peninsula. My highest ever March max is 18.9C.

It's likely to be a good 5C cooler tomorrow as the just offshore NE-ENE wind of today veers to an onshore E-ESE.

Graham
Penzance



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