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Old November 5th 05, 08:51 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05 (Radar under-reading a lot)

Brian Wakem wrote:

Will Hand wrote:


1953 GMT

Rate 1.5 mm/h
Total rain 8.4 mm

Radar at 1930 GMT had zero rainfall rate over us (as far as I can tell
squinting at the Met Office maps). Actual ground truth was 1.5 mm/h

It has been continuous moderate rain now for over 3 hours (occasionally
heavy).

Will.




Yes it shows zero rainfall in Fleet, Hampshire too, but I've just been out
for a run and it rained from start to finish. Only light rain though.

Got a nice view of about 1,000 fireworks displays from the top of Firs Hill,
I could see every display in Fleet, Farnborough and Camberley
simultaneously. Quite a sight.



And they are still going! Suprised its not foggy now.

--
Sarah
It's an odd world I live in.

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Old November 5th 05, 09:00 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05 (Radar under-reading a lot)


"Brian Wakem" wrote in message
...
Will Hand wrote:

1953 GMT

Rate 1.5 mm/h
Total rain 8.4 mm

Radar at 1930 GMT had zero rainfall rate over us (as far as I can tell
squinting at the Met Office maps). Actual ground truth was 1.5 mm/h

It has been continuous moderate rain now for over 3 hours (occasionally
heavy).

Will.



Yes it shows zero rainfall in Fleet, Hampshire too, but I've just been out
for a run and it rained from start to finish. Only light rain though.

Got a nice view of about 1,000 fireworks displays from the top of Firs Hill,
I could see every display in Fleet, Farnborough and Camberley
simultaneously. Quite a sight.


Sounds great!
Big bangs and flashes round here too, dog is a wreck though.

2100 GMT

9.9 mm total now
Rate 2.3 mm/h

Radar had zero rain at 2030 GMT , actual rate on the ground 1.6 mm/h

The moor will be getting very wet now again and the rivers will be swelling.

Will.
--

" Ah yet another day to enjoy "
-------------------------------------------------------------------------------
A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

mailto:
www:
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm

DISCLAIMER - All views and opinions expressed by myself are personal
and do not necessarily represent those of my employer.
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Old November 5th 05, 09:13 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05 (Radar under-reading a lot)

Will Hand wrote:

Got a nice view of about 1,000 fireworks displays from the top of Firs Hill,
I could see every display in Fleet, Farnborough and Camberley
simultaneously. Quite a sight.



Sounds great!
Big bangs and flashes round here too, dog is a wreck though.


That's something that always makes me smile about this Country the fact
that we actually celibrate an attempt to blow up the Houses of
Parliament and the Royal Family. Maybe all is not lost in this Country g

--
Keith (Southend)
http://www.southendweather.net
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Old November 5th 05, 09:28 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05 (Radar under-reading a lot)

Keith (Southend) wrote:

Will Hand wrote:

Got a nice view of about 1,000 fireworks displays from the top of Firs
Hill, I could see every display in Fleet, Farnborough and Camberley
simultaneously. Quite a sight.



Sounds great!
Big bangs and flashes round here too, dog is a wreck though.


That's something that always makes me smile about this Country the fact
that we actually celibrate an attempt to blow up the Houses of
Parliament and the Royal Family. Maybe all is not lost in this Country g


But along with Christmas and Easter, Bonfire night is now entirely a
commercial celebration.


--
Brian Wakem
Email: http://homepage.ntlworld.com/b.wakem/myemail.png
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Old November 5th 05, 09:47 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05 (Radar under-reading a lot)


"Will Hand" wrote in message
...

"Brian Wakem" wrote in message
...
Will Hand wrote:

1953 GMT

Rate 1.5 mm/h
Total rain 8.4 mm

Radar at 1930 GMT had zero rainfall rate over us (as far as I can tell
squinting at the Met Office maps). Actual ground truth was 1.5 mm/h

It has been continuous moderate rain now for over 3 hours (occasionally
heavy).


2100 GMT

9.9 mm total now
Rate 2.3 mm/h

Radar had zero rain at 2030 GMT , actual rate on the ground 1.6 mm/h


Radar rate at 2100 very light but now some heavy rain spreading in on the
display.

2145 GMT

Total now 12.4 mm
Rate 11.4 mm/h
Turning into a dirty wet night now.

One reason why radar may have been under-reading was the old problem of rain
falling from shallow cloud being orographically enhanced over high ground. Radar
beam overshoots the low cloud and misses the rain. This is more of a problem if
a radar goes out of the network as it then has to be replaced with radar data
from a more distant radar which would be looking higher up. I cannot tell
whether this was the case this evening. Anyhow the thicker cloud seems to be
coming in now and it looks like we are in for a big fall in Devon. I fear the
worst re the flooding situation it does seem inevitable given that the moor this
morning still had streams running down the paths which should normally be dry.

Fingers crossed.

Will.
--

" Ah yet another day to enjoy "
-------------------------------------------------------------------------------
A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

mailto:
www:
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm

DISCLAIMER - All views and opinions expressed by myself are personal
and do not necessarily represent those of my employer.
-------------------------------------------------------------------------------




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Old November 5th 05, 09:52 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05 (Radar under-reading a lot)

In article ,
"Keith (Southend)" writes:

That's something that always makes me smile about this Country the fact
that we actually celibrate an attempt to blow up the Houses of
Parliament and the Royal Family. Maybe all is not lost in this Country
g




I think that the official line is that we celebrate the _failure_ of the
attempt. Whether one believes that that is what we are celebrating is
another matter, of course.
--
John Hall

"The beatings will continue until morale improves."
Attributed to the Commander of Japan's Submarine Forces in WW2
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Old November 5th 05, 10:30 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05


2145 GMT

Total now 12.4 mm
Rate 11.4 mm/h
Turning into a dirty wet night now.

One reason why radar may have been under-reading was the old problem of rain
falling from shallow cloud being orographically enhanced over high ground.

Radar
beam overshoots the low cloud and misses the rain. This is more of a problem

if
a radar goes out of the network as it then has to be replaced with radar data
from a more distant radar which would be looking higher up. I cannot tell
whether this was the case this evening. Anyhow the thicker cloud seems to be
coming in now and it looks like we are in for a big fall in Devon. I fear the
worst re the flooding situation it does seem inevitable given that the moor

this
morning still had streams running down the paths which should normally be dry.

Fingers crossed.


2230 GMT

Total now 15.0 mm
Rain rate 3.0 mm/h

Will.
--

" Ah yet another day to enjoy "
-------------------------------------------------------------------------------
A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

mailto:
www:
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm

DISCLAIMER - All views and opinions expressed by myself are personal
and do not necessarily represent those of my employer.
-------------------------------------------------------------------------------


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Old November 5th 05, 10:47 PM posted to uk.sci.weather
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Default [WR] Haytor 5/11/05


"Will Hand" wrote in message
...

2145 GMT

Total now 12.4 mm
Rate 11.4 mm/h
Turning into a dirty wet night now.


2230 GMT

Total now 15.0 mm
Rain rate 3.0 mm/h


2245 GMT

Total 16.6 mm
Rain rate 14.0 mm/h

Water flowing everywhere now outside.

Will.
--
-------------------------------------------------------------------------------
A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

mailto:
www:
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm

DISCLAIMER - All views and opinions expressed by myself are personal
and do not necessarily represent those of my employer.
-------------------------------------------------------------------------------




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