.... (23/0800Z): short light shower of *rain*, freezing on impact:
extensive hoar frost. Ice all untreated surfaces.

Current OAT -3.0°C, having been down to -4.1°C overnight. Deep,
vigorous convective towers visible to south & east (lit by imminent
sunrise).

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

"Martin Rowley" wrote ...
... (23/0800Z): short light shower of *rain*, freezing on impact:
extensive hoar frost. Ice all untreated surfaces.

Current OAT -3.0°C, having been down to -4.1°C overnight. Deep,
vigorous convective towers visible to south & east (lit by imminent
sunrise).


.... (23/0900Z): another period of freezing rain - all untreated
surfaces (and some that had been so), are now covered with ice;
worst/best case I've seen since the 1985.

OAT currently -1.2°C

A338 Bournemouth - Ringwood (a major feeder/connecting road
hereabouts) shut in both directions for past couple of hours due
multiple accidents over ice.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

... (23/0900Z): another period of freezing rain - all untreated
surfaces (and some that had been so), are now covered with ice;
worst/best case I've seen since the 1985.

OAT currently -1.2°C

A338 Bournemouth - Ringwood (a major feeder/connecting road
hereabouts) shut in both directions for past couple of hours due
multiple accidents over ice.


.... (23/0930Z): not raining currently, but note sferics on latest
frames coastal Channel! Still sub-zero temperatures in air (-0.8°C),
though the grass min thermometer, though ice-covered, is reading 0.0:
presumably some latent heat exchanges in place there.

All paths are like glass: they *look* wet, but are in fact highly
dangerous.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

... (23/0930Z): not raining currently, but note sferics on latest
frames coastal Channel! Still sub-zero temperatures in air (-0.8°C),
though the grass min thermometer, though ice-covered, is reading
0.0: presumably some latent heat exchanges in place there.

All paths are like glass: they *look* wet, but are in fact highly
dangerous.


.... (23/1130Z): currently light/continuous rain, but whilst out and
about, PPN turned moderate, with a very little wet snow embedded. OAT
currently: +0.3°C, with grass min. thermo just a tenth above zero.

Paths, with the benefit of 'warm' PPN have now begun to sort
themselves out: still patches of ice (where previously thick), but
broadly, it's just wet/soggy underfoot. Roads seem OK ... one or two
minor roads are as the paving - need care, but generally fine.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

... (23/1130Z): currently light/continuous rain, but whilst out and
about, PPN turned moderate, with a very little wet snow embedded.
OAT currently: +0.3°C, with grass min. thermo just a tenth above
zero.

Paths, with the benefit of 'warm' PPN have now begun to sort
themselves out: still patches of ice (where previously thick), but
broadly, it's just wet/soggy underfoot. Roads seem OK ... one or two
minor roads are as the paving - need care, but generally fine.


.... (23/1155Z): OAT: +0.4°C, moderate rain, misty (VIS ~2km).

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

... (23/1155Z): OAT: +0.4°C, moderate rain, misty (VIS ~2km).


.... (23/1255Z): rain ceased - weak sunshine. Multi-lyr Sc/Ac. OAT
0.8°C.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

.... (23/1515Z): well, it's all go again: rain off and on from 1330Z,
ocnl moderate, then at 1440Z, isolated 'rumble' of nearby thunder,
with another CG strike seen about 5 mins later. This was accompanied
by an intensification of the rain (heavy category for a short time),
with a couple of bouts of mostly small hail, but I've just had a look
at the deposits, and can see a few 5mm diameter.

PPN csd now, all surfaces thoroughly wet, with water lying on soil
surfaces that are still cold & compacted. Hail particles sparsely
scattered.

OAT 3.5°C.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

"Martin Rowley" wrote ...
... (23/1515Z): well, it's all go again: rain off and on from 1330Z,
ocnl moderate, then at 1440Z, isolated 'rumble' of nearby thunder,
with another CG strike seen about 5 mins later. This was accompanied
by an intensification of the rain (heavy category for a short time),
with a couple of bouts of mostly small hail, but I've just had a
look at the deposits, and can see a few 5mm diameter.

PPN csd now, all surfaces thoroughly wet, with water lying on soil
surfaces that are still cold & compacted. Hail particles sparsely
scattered.

OAT 3.5°C.

.... (23/1610Z): all quiet - at the moment, but some well-developed Cu
con making approach towards us; noted that Hurn reported gust to 29 kn
on the 15Z ob: we didn't have any such event here, but given the
vigour of convection, am not surprised. The hail was mostly opaque,
but with a small proportion partially translucent. Mostly melted off
now.

Rain since 09Z this morning = 10. 6 mm, and I think we've got some
more to come.

Martin.


Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

Rain since 09Z this morning = 10. 6 mm, and I think we've got some
more to come.


.... (indeed we have - 23/1745Z): ISOL TS since 1705Z, still in
progress; rain (short-period small hail) from 1650Z: discharge
activity seems to be CC, with the immediate past event (1741Z) one of
those 'several seconds' extended rumbles trailing away into the
distance.

Currently moderate rain.

OAT: 3.9°C

[ quite an exciting day really :-) ]

Martin.

--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

... (indeed we have - 23/1745Z): ISOL TS since 1705Z, still in
progress; rain (short-period small hail) from 1650Z: discharge
activity seems to be CC, with the immediate past event (1741Z) one
of those 'several seconds' extended rumbles trailing away into the
distance.

Currently moderate rain.


.... (231845Z): thunder ceased 1815Z (by the 10 min rule) - last
'rumble' again a very extended (at least 5 sec) CC discharge. Wind got
a bit gusty for a short while.

Moderate rain persists.

Martin.

--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023