Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.

On 27/11/2015 07:21, Bob Martin wrote:
Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.

-----------------------------------------
Normally brilliant - today rubbish would be my reply! I've just given a
friend a forecast for Sevenoaks in Kent where he is playing golf today,
saying dry. Imagine my shock when I looked out of the window and saw
puddles on my flat roof. Checked the radar - nothing at all. On high res
some very light small patches around your area but nothing in Essex or Kent!
Dave, S.Essex

"Dave Cornwell" wrote in message
...
On 27/11/2015 07:21, Bob Martin wrote:
Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.

-----------------------------------------
Normally brilliant - today rubbish would be my reply! I've just given a
friend a forecast for Sevenoaks in Kent where he is playing golf today,
saying dry. Imagine my shock when I looked out of the window and saw
puddles on my flat roof. Checked the radar - nothing at all. On high res
some very light small patches around your area but nothing in Essex or
Kent!
Dave, S.Essex

The radar is to be used with caution on Dartmoor. Always misses soaking
heavy drizzle which can give several mm in the gauge and sometimes overdoes
convective rainfall.

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

On 27/11/2015 10:16, Eskimo Will wrote:

"Dave Cornwell" wrote in message
...
On 27/11/2015 07:21, Bob Martin wrote:
Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.

-----------------------------------------
Normally brilliant - today rubbish would be my reply! I've just given
a friend a forecast for Sevenoaks in Kent where he is playing golf
today, saying dry. Imagine my shock when I looked out of the window
and saw puddles on my flat roof. Checked the radar - nothing at all.
On high res some very light small patches around your area but nothing
in Essex or Kent!
Dave, S.Essex

The radar is to be used with caution on Dartmoor. Always misses soaking
heavy drizzle which can give several mm in the gauge and sometimes
overdoes convective rainfall.

Will
-----------------------------------------------
Yes - I imagine there has been some heavy drizzle kicking about early on.
Are you going to, or have you done your Dartmoor winter forecast yet Will?
Dave

"Freddie" wrote in message
...
Bob Martin Wrote in message:

Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.


It has its well-documented limitations.

Yes and also the performance depends on regular maintenance and software
corrections. That costs money.

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

"Dave Cornwell" wrote in message
...
On 27/11/2015 10:16, Eskimo Will wrote:

"Dave Cornwell" wrote in message
...
On 27/11/2015 07:21, Bob Martin wrote:
Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.

-----------------------------------------
Normally brilliant - today rubbish would be my reply! I've just given
a friend a forecast for Sevenoaks in Kent where he is playing golf
today, saying dry. Imagine my shock when I looked out of the window
and saw puddles on my flat roof. Checked the radar - nothing at all.
On high res some very light small patches around your area but nothing
in Essex or Kent!
Dave, S.Essex

The radar is to be used with caution on Dartmoor. Always misses soaking
heavy drizzle which can give several mm in the gauge and sometimes
overdoes convective rainfall.

Will
-----------------------------------------------
Yes - I imagine there has been some heavy drizzle kicking about early on.
Are you going to, or have you done your Dartmoor winter forecast yet Will?
Dave

Hi Dave, gave them up a couple of years ago. I now do a 4 week ahead outlook
each week along with my weekly forecast. I also provide a link to the MetO
three monthly contingency planning outlook from my main home page.
http://www.lyneside.demon.co.uk/weeklydiscussions.htm .

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

On Friday, 27 November 2015 10:51:20 UTC, Freddie wrote:
Bob Martin Wrote in message:

Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.


It has its well-documented limitations.
--
Freddie
Pontesbury
Shropshire
102m AMSL
http://www.hosiene.co.uk/weather/
http://twitter.com/PontesburyWx for hourly reports


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

What proportion of its shortcomings are due simply to the radar beam passing over the top of very low and shallow precipitating stratus? This has certainly happened the in the past.
Fairly continuous but light drizzle here up to now (1130). No hill fog.

Tudor Hughes, Warlingham, Surrey, 557 ft, 169 m.

On 27/11/2015 10:16, Eskimo Will wrote:

"Dave Cornwell" wrote in message
...
On 27/11/2015 07:21, Bob Martin wrote:
Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.

-----------------------------------------
Normally brilliant - today rubbish would be my reply! I've just given
a friend a forecast for Sevenoaks in Kent where he is playing golf
today, saying dry. Imagine my shock when I looked out of the window
and saw puddles on my flat roof. Checked the radar - nothing at all.
On high res some very light small patches around your area but nothing
in Essex or Kent!
Dave, S.Essex

The radar is to be used with caution on Dartmoor. Always misses soaking
heavy drizzle which can give several mm in the gauge and sometimes
overdoes convective rainfall.

Will
See http://www.metoffice.gov.uk/news/in-depth/radar. Drizzle isn't
picked up by radar.

There's more info on
http://www.metoffice.gov.uk/learning...rainfall-radar.

The Met O is upgrading their radar network but whether this includes
drizzle I don't know. There used to be a very good page describing the
strengths and weaknesses of weather radar but I can't find it at the moment.

On 27/11/2015 11:37, Tudor Hughes wrote:
On Friday, 27 November 2015 10:51:20 UTC, Freddie wrote:
Bob Martin Wrote in message:

Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.


It has its well-documented limitations.
--
Freddie
Pontesbury
Shropshire
102m AMSL
http://www.hosiene.co.uk/weather/
http://twitter.com/PontesburyWx for hourly reports


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

What proportion of its shortcomings are due simply to the radar beam passing over the top of very low and shallow precipitating stratus? This has certainly happened the in the past.
Fairly continuous but light drizzle here up to now (1130). No hill fog.

Tudor Hughes, Warlingham, Surrey, 557 ft, 169 m.

-------------------------------------------------------------
I'm gonna get some stick from my mate. it's that soaking drizzle that is
a nightmare to play golf in. The forecast was also for dry so the human
intervention didn't work either. Today bears no resemblance to the
impression given by last night's forecast which was for a windy, mild
dry day prior to the rain band arriving later.

Hi Dave, gave them up a couple of years ago. I now do a 4 week ahead
outlook each week along with my weekly forecast. I also provide a link
to the MetO three monthly contingency planning outlook from my main home
page.
http://www.lyneside.demon.co.uk/weeklydiscussions.htm .

Will
-----------------------------------------------------------------------------
Good, I'll have a look. Think the 4 week trend is more realistic and
useful. people tried to read too much into the other one which was just
for fun really. Talking of which things seem to have settled down on
here of late - let's hope it lasts, we all need a bit of good will (no
pun intended) at the moment.
Dave :-)