On 2009-06-23, Paul Hyett wrote:
On Tue, 23 Jun 2009 at 04:56:45, Darren Prescott
wrote in uk.sci.weather :

Here is a summary of the latest NWP output for noon (GMT) on Saturday.
Issued 0455z, 23rd June 2009.

The weekend will see warm, sticky weather across the UK with the risk
of slow-moving torrential showers.

Oh well, I wasn't planning to sleep for the next week anyway...

Are the following scenarios likely in the next week or so, in eastern
England???

A Beaumont Period: a period of 48 consecutive hours, in at
least 46 of which the hourly readings of temperature and
relative humidity at a given place have not been less than 20C
(68ºF) and 75%, respectively.

A Smith Period: at least two consecutive days where minimum
temperature is 10C (50ºF) or above and on each day at least 11
hours when the relative humidity is greater than 90%

(I grow potatoes... not a lot, but the above scenarios favour late
blight)

thanks

--
comp.john