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30/05/07
15.3mb
|
A
classic warm front and warm sector with low cloud and rain in the
morning. Cloud base lifts as weak cold front moves through. Complete
clearance by lunchtime leaving sunshine but clouds build and heavy
showers arrive by mid-afternoon. |
|
31/05/07
14.8mb
|
After
a bright start frequent showers arrive by late-morning, lasting
until mid-afternoon. As the showers clear and cumulus gradually
disperses by early-evening, it leaves behind an interesting display
of mid-level cloud developing in situ. |
|
01/06/07
16.2mb
|
Low
cloud clears although fog continues in the Clyst Valley. Then follows
cirrus from the west, mid-level cloud from the east, then cumulus
around midday. Cirrus during the afternoon and evening as a warm
front nears Devon from the west. |
|
02/06/07
14.0mb
|
A
trailing front remained close to the western side of Devon through
the day. After a morning of cumulus, skies cleared for a while to
reveal cirrus from the west. Cloud increases at all levels in the
afternoon as frontal system moves slowly east. |
|
03/06/07
13.5mb
|
A
stationary front remains very closeby. Dry with low and mid level
cloud from the south in the morning and early afternoon. Low cloud
swings around from west then north-west in the afternoon as front
moves overhead. A few evening showers. |
|
04/06/07
12.7mb
|
Fronts
move away to the west leaving a ridge. A dry morning with cumulus
from the north and cirrus from the east. A cumulus build-up in the
afternoon as showers develop 30 miles east. Dry evening with cirrus,
cumulus and late stratocumulus. |
|
09/06/07
8.3mb
|
A
couple of banks of Altocumulus pass through during the morning from
the east. These clear and convection sparks on the sea-breeze by
midday, this going on to give showers over north Devon. Cirrocumulus
and sunshine for the rest of the day. |
|
12/06/07
5.0mb
|
A
short evening clip of slow-moving light showers developing over
Exeter before fizzling away to leave a clear evening. Check out
the brief red sunset at the very end of the clip, thanks to distant
cirrus. |
|
19/06/07
12.9mb
|
Cirrus
and Ac at first, including a halo at times. AcCas continues to build
culminating in a number of plume-type thunderstorms in the afternoon.
A clearance to surface-based Cu and Strato-cu in the evening, then
a return to Ac before dark. |
|
22/06/07
15.0mb
|
With
very slack winds/flow, Cu grows and dies almost in situ during the
morning. By midday the sea-breeze arrives from south pushing cloud
bases north, creating shear and developing showers during the afternoon.
A clear evening. |
|
23/06/07
13.9mb
|
Cu
and Ac at first before sunny spells allow deeper Cu. Heavy showers
by early afternoon. A rotating updraft, possibly a mesocyclone during
a t-storm between 12:30 &. 12:40. See here
for slower video. Sunny spells through the evening. |
|
24/06/07
8.8mb
|
A
superb day for illustrating the different motions of clouds at different
altitudes. Each time the sun appears, Cu erupts. During the afternoon,
Cu becomes larger and eventually a large shower breaks over from
the west to end the day's filming. |
| July
2007 |
|
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03/07/07
1.4mb
|
A
short evening timelapse, showing the development of thunderstorms
over the Blackdown Hills, to the east of Exeter. The towering thunderclouds
eventually disappear behind the foreground cloud formations. |
|
07/07/07
11.5mb
|
A
straight-forward day of long sunny spells and broken cumulus. The
cumulus gains some depth at times in the afternoon, whilst remaining
non-threatening. Some cirrus shoots across the scene during the
afternoon too. Cumulus dies at sunset. |
|
08/07/07
11.4mb
|
Patchy
cirrus and sunshine at first but cumulus soon develops. A large
shower moves in slowly from the west during the afternoon, followed
by developing showers later in the afternoon. More t-storms to the
east developing in the evening. |
|
15/07/07
4.5mb
|
A
morning timelapse, showing pre-frontal cloud. Numerous standing
waves and oscillations can be seen within the cloud sheet, although
definition is lost later in the morning as frontal rainfall arrives. |
|
16/07/07
4.5mb
|
Altocumulus
and cumulus during the morning, all moving northwards. Amounts of
cirrus increase through the afternoon, but not enough to prevent
a few showers during the early-evening period. Spot the rainbow
at 19:25! |
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