uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old May 29th 15, 11:28 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Oct 2009
Posts: 1,730
Default High frontal speed

The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon

  #2   Report Post  
Old May 29th 15, 12:07 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Nov 2010
Posts: 4,488
Default High frontal speed

On 29/05/2015 11:28, Len Wood wrote:
The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon

-----------------------------------------------------
Doesn't seem to be rushing through at Headingley !
  #3   Report Post  
Old May 29th 15, 06:20 PM posted to uk.sci.weather
Col Col is offline
external usenet poster
 
First recorded activity by Weather-Banter: Jul 2003
Posts: 4,367
Default High frontal speed


"Dave Cornwell" wrote in message
...
On 29/05/2015 11:28, Len Wood wrote:
The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon

-----------------------------------------------------
Doesn't seem to be rushing through at Headingley !


Special arrangements are made for Test Matches though.
Cold front waves can develop at a moment's notice!
--
Col

Bolton, Lancashire
160m asl
Snow videos:
http://www.youtube.com/channel/UC3QvmL4UWBmHFMKWiwYm_gg


  #4   Report Post  
Old May 29th 15, 12:09 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Jun 2010
Posts: 5,545
Default High frontal speed

On Friday, May 29, 2015 at 11:28:17 AM UTC+1, Len Wood wrote:
The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon


Just cleared Penzance. 2.5mm fell in a couple of brief sharp bursts, ending the dry spell. Total May rainfall now 99% of normal.

No squally winds here, strongest gust 25mph in Penzance, never above F4. Strongest gust 36mph on the cliff top at Land's End where it briefly topped F6.
We are at the tail end though, it looks much more active affair further east.

Graham
Penzance


  #5   Report Post  
Old May 29th 15, 05:22 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Apr 2013
Posts: 1,066
Default High frontal speed

On 29/05/2015 12:09, Graham Easterling wrote:
On Friday, May 29, 2015 at 11:28:17 AM UTC+1, Len Wood wrote:
The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon


Just cleared Penzance. 2.5mm fell in a couple of brief sharp bursts, ending the dry spell. Total May rainfall now 99% of normal.

No squally winds here, strongest gust 25mph in Penzance, never above F4. Strongest gust 36mph on the cliff top at Land's End where it briefly topped F6.
We are at the tail end though, it looks much more active affair further east.


Rain rate peaked at 54mm/hr here.


--

Paul Hyett, Cheltenham


  #6   Report Post  
Old May 29th 15, 12:12 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Apr 2008
Posts: 1,964
Default High frontal speed

On 29/05/2015 11:28, Len Wood wrote:
The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon


A lot of rain in Southampton for the last 20 minutes.
I made the secondary low that raced through Biscay 04 May 2015 to be
about 53 land miles per hour, up to join the main Low over England, is
that fast? I could not find what was normal/exceptional for that factor
  #7   Report Post  
Old May 29th 15, 07:50 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Oct 2009
Posts: 1,730
Default High frontal speed

On Friday, 29 May 2015 12:12:39 UTC+1, N_Cook wrote:
On 29/05/2015 11:28, Len Wood wrote:
The active cold front sweeping across the south of UK is moving fast.
50 mph on my calculation,
or about 22 m/s.
That is quite fast by any standards.

http://www.netweather.tv/index.cgi?a...pos=0&at_tot=4

Len
Wembury, SW Devon


A lot of rain in Southampton for the last 20 minutes.
I made the secondary low that raced through Biscay 04 May 2015 to be
about 53 land miles per hour, up to join the main Low over England, is
that fast? I could not find what was normal/exceptional for that factor

================================================== ==========================
That is pretty fast, cold frontal speeds vary of course, even along their length.
But in my experience 10 to 15 m/s (22 to 33 mph) is typical.

Not much rain at a given location in the south due to its speed.
Only 1.2 mm here, there seemed to be a bit more in Midlands and east thereof.

Temp rose to 15C behind cold front here in sunshine.

Len
Wembury, SW Devon

---------------------------------------------------------------------------
  #8   Report Post  
Old May 29th 15, 11:56 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Mar 2012
Posts: 124
Default High frontal speed

In message , Len
Wood writes
================================================= ===========================
That is pretty fast, cold frontal speeds vary of course, even along
their length.
But in my experience 10 to 15 m/s (22 to 33 mph) is typical.

Not much rain at a given location in the south due to its speed.
Only 1.2 mm here, there seemed to be a bit more in Midlands and east thereof.

Temp rose to 15C behind cold front here in sunshine.

Len
Wembury, SW Devon

---------------------------------------------------------------------------



Stupid question - sorry. How is the front speed calculated please ?
--


Jim

Sulby Glen


  #9   Report Post  
Old May 30th 15, 01:32 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Jan 2005
Posts: 4,152
Default High frontal speed

On Friday, 29 May 2015 23:56:26 UTC+1, Jim Kewley wrote:
In message , Len
Wood writes
================================================= ===========================
That is pretty fast, cold frontal speeds vary of course, even along
their length.
But in my experience 10 to 15 m/s (22 to 33 mph) is typical.

Not much rain at a given location in the south due to its speed.
Only 1.2 mm here, there seemed to be a bit more in Midlands and east thereof.

Temp rose to 15C behind cold front here in sunshine.

Len
Wembury, SW Devon

---------------------------------------------------------------------------



Stupid question - sorry. How is the front speed calculated please ?
--


Jim

Sulby Glen


Not so much calculated as observed from its passage through places say 100 miles apart in the direction of travel. Not all cold fronts have a well-defined time of passage, unfortunately.

Tudor Hughes, Warlingham, Surrey.
  #10   Report Post  
Old June 1st 15, 10:19 PM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Mar 2012
Posts: 124
Default High frontal speed

In message ,
Tudor Hughes writes

Stupid question - sorry. How is the front speed calculated please ?
--


Jim

Sulby Glen


Not so much calculated as observed from its passage through places
say 100 miles apart in the direction of travel. Not all cold fronts
have a well-defined time of passage, unfortunately.

Tudor Hughes, Warlingham, Surrey.


Thanks Tudor, it's old fashioned observation and not some nifty maths.

--


Jim




Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
High Speed Photography ;-) Edward Erbeck alt.binaries.pictures.weather (Weather Photos) 14 September 3rd 10 12:55 PM
High speed flea chase clouds TheCroW alt.binaries.pictures.weather (Weather Photos) 3 August 7th 07 06:29 PM
[WR] Frontal Clearance in N.I. Mike Tullett uk.sci.weather (UK Weather) 1 August 8th 04 11:50 PM
Pre-frontal Convergence Joe Hunt uk.sci.weather (UK Weather) 1 May 7th 04 04:27 PM
Frontal wave crosses Brussels Colin Youngs uk.sci.weather (UK Weather) 0 April 22nd 04 10:00 PM


All times are GMT. The time now is 11:42 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 Weather Banter.
The comments are property of their posters.
 

About Us

"It's about Weather"

 

Copyright © 2017