alt.talk.weather (General Weather Talk) (alt.talk.weather) A general forum for discussion of the weather.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old December 24th 07, 08:07 PM posted to alt.talk.weather, sci.geo.earthquakes
external usenet poster
 
First recorded activity by Weather-Banter: Dec 2004
Posts: 4,411
Default 01:17

October 2005
http://www.climate-uk.com/monthly/0511.htm

"This exceptional month was dominated by winds from a southerly
quarter almost throughout.

With pressure now high over eastern Europe a mainly southerly type
persisted until the 18th, although a vigorous frontal trough moved
very slowly eastwards across the UK between the 11th and 13th,
followed by a sharp but short-lived rise in pressure.

Torrential rain in many western districts led to serious but short-
lived flooding, notably in Wales and Cumbria.

A trough advanced across the country from the southwest on the 19th,
introducing a cyclonic spell which lasted until the 25th. Rain fell
frequently and often heavily, and hail and thunder occurred in many
places.

Some 68mm of rain reportedly fell at Ottery St Mary (Devon) on the
19th. It became somewhat colder for a few days in Scotland with some
hill snow.

Further flooding was reported on the 24th, notably in Northern Ireland
[and Wales] between the 23rd and 25th."

[A massive Atlantic hurricane ( Wilma-05) ran from15th to 25th
October.. I'm not sure when it became a category 5 but it changed the
power of the spell from a mere wet and warm one to one with thunder
in. That's a knock back of 4 hours in the phase.]

"A broad SSW-ly flow brought tropical air from unusually low latitudes
during the last seven days of the month. The weather was warm but
largely cloudy with rain at times, heavy in the north and west, but
the 27th was notably sunny. The 31st was wet in the Southeast and East
Anglia."

[Two major tropical cyclones were running at the month's end:
27th to31st October.. Cyclone category 3. BETA-05. Atlantic and 29th
October to 2nd November.. Cyclone category 2. KAI-TAK-05. NW Pacific.

If the knock back is 4 hours for a Cat 5 and a Cat 1 is nearly zero,
then the knock back on these was 2 hours for the first and 1 hour for
the second at their respective heights.]

25 Oct to 2 Nov 01:17
2 to 9 Nov 01:25
  #2   Report Post  
Old December 24th 07, 08:15 PM posted to alt.talk.weather, sci.geo.earthquakes
external usenet poster
 
First recorded activity by Weather-Banter: Dec 2004
Posts: 4,411
Default 01:17

5 Oct to 2 Nov 01:17
2 to 9 Nov 01:25
9 to 16 Nov 01:57
16 to 23 Nov 00:58

November 2005:

"A cyclonic/southwesterly regime prevailed throughout the first twelve
days, but from the 13th onwards anticyclonic and northerly types were
dominant.

With such contrasting episodes, the sea-level pressure anomaly field
over Europe and the Atlantic was relatively weak.

After a bright first day, the 2nd brought rain and strong winds to all
areas but it was exceptionally mild.

Another frontal system brought heavy rain to western and northern
districts on the 5th and 6th, then two intense secondary depressions
swept past the UK's north western seaboard on the 7th/8th and 11th/
12th, the wind gusting to 80-90kn in the Western Isles on both
occasions.

Heavy orographic rain [think moist warm air forced to rise over
mountains and cool thus losing water] recurred, with 76mm at Capel
Curig (Snowdonia) on the former occasion and 101mm at Cassley
(Sutherland) on the latter, but between these two systems all regions
were mostly dry and sunny on the 9th. It remained warm with highs of
14-17°C on several days.

The briefest of northerly outbreaks was followed by a strong but short-
lived build of pressure across the British Isles on the 13th and 14th,
and this brought a general drop in temperature with frost by night and
plentiful sunshine by day.

Another northerly outbreak between the 15th and 17th preceded a
prolonged rise in pressure which saw the establishment of a large
anticyclone over the UK from the 18th-23rd."

Without knowing the exact dates that Bolaven and more importantly
Bertie were at their height, it's not possible to say when they
affected the lunar spells the most.
However they were running on:

13th to 20th November. Category 1. Bolaven in the NW Pacific and
19th to 26th November. Category 4. Bertie in the SE Indian ocean.

There were snow showers in Scotland on the 16th, otherwise this was a
period of cold, settled weather with frosty nights and sunny days.

At night temperatures fell widely to between -5 and -8°C on the 19th.
Freezing fog formed widely from the 19th onwards, persisting all day
in places, and at Pershore (Worcs) the temperature remained below zero
from sunset on the 18th to daybreak on the 21st.

Elsewhere, many places had five or six consecutive days of unbroken
sunshine, and Hastings logged 67 hours of sunshine in the 10-day
period 13th-22nd.

The anticyclone withdrew to mid-Atlantic on the 24th as a vigorous
cold front swept southwards across the country, introducing a
northerly flow which lasted until the 29th.

The front on the 24th was associated with hail, thunder, violent
squalls, and a near-instantaneous temperature drop of 5-8 degC.

The next day, heavy snow fell widely in the northern half of Scotland
(20cm at Glenlivet), Northern Ireland, Wales, Devon and Cornwall, and
hundreds of motorists were stranded overnight on Bodmin Moor following
an accident which blocked the A30.

The next two days were slightly less cold and rain fell rather than
snow, including a fall of 70mm in 48 hours at Boulmer
(Northumberland).

Snow returned on the 28th, affecting chiefly Yorkshire, Lancashire and
the Midlands. It became somewhat less cold on the 30th as the wind
backed westerly and rain approached from the Atlantic.

The first half of November was the warmest since 1994 (temperatures
2.0-2.5 deg C above normal), while the second half was the coldest
since 1993 (3.5-4.0 degC below normal).

It was a dry month in most eastern and some southern districts, with
less than 30mm of rain over much of Lincolnshire, East Anglia and
Kent, but monthly totals were rather above average in northern and
western Scotland, north west England, Wales and Cornwall.

Sunshine aggregates were above normal practically everywhere, and
approached twice the long-term mean locally in north east England and
the Midlands. Averaged over England and Wales this was easily the
sunniest November in a record stretching back to 1881.

http://www.climate-uk.com/monthly/0511.htm

Ah well, since there isn't a storm of any sort extant this spell so
far, I suppose it all moot.
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



All times are GMT. The time now is 03:57 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