Sybarite
Well-known member
First time I have actually heard F12 mentionned on my occasional listenings to the weather forecasts. Last week was 'only' F11.
John
John
Force 12 and 948 mb NW Scotland
- Thread starter Sybarite
- Start date
AlexL
Member
Did you know that the pressure change in the atmosphere is about 1mb per 30 ft of altitude. So a pressure of 948 (I saw 944 on one synoptic this morning) is equivalent to being at an altidude of 2160 feet on an average (1020 mb in the UK) day!
FWB
N/A
Re: Force 12 and 948 mb NW Scotland
Take a look at the Minack Theatre webcam----not far from Lands End.
http://www.minack.com/min02_7b.htm
Take a look at the Minack Theatre webcam----not far from Lands End.
http://www.minack.com/min02_7b.htm
Sgeir
Well-known member
Name that Play!
"The Tempest", W Shakespeare?
"The Tempest", W Shakespeare?
jimi
Well-known member
Re: Name that Play!
Nah ... Tape's last krapp (Tape is the black labrador belonging to Mrs Beryl Winston a local B&B landlandy sadly widowed in the 70's with a penchant for sherry and Mr Bell the local campanologist vicar)
Nah ... Tape's last krapp (Tape is the black labrador belonging to Mrs Beryl Winston a local B&B landlandy sadly widowed in the 70's with a penchant for sherry and Mr Bell the local campanologist vicar)
snowleopard
Active member
i've seen a few references to 'hurricane force 12' in shipping forecasts this winter. what term do they use if there are higher winds i wonder?
i had a nasty shock once when i picked up a weather fax of forecast winds in the atlantic without noticing it was for 500mb altitude. the wind arrows had the usual feathers (i per 10 knots) plus little triangles representing 50 knots - it was the jet stream.
i had a nasty shock once when i picked up a weather fax of forecast winds in the atlantic without noticing it was for 500mb altitude. the wind arrows had the usual feathers (i per 10 knots) plus little triangles representing 50 knots - it was the jet stream.
PeteMcK
New member
Re: Force 12 and 948 mb NW Scotland
Open the SW View at Bruichladdich, Islay - only F5 so far.
http://www.bruichladdich.com/web_cam.htm
Open the SW View at Bruichladdich, Islay - only F5 so far.
http://www.bruichladdich.com/web_cam.htm
FWB
N/A
Re: Force 12 and 948 mb NW Scotland
Thanks, this is a good one when you can see through the rain !
http://www.smo.uhi.ac.uk/smo/dealbhan/camara-lin/english.php
Thanks, this is a good one when you can see through the rain !
http://www.smo.uhi.ac.uk/smo/dealbhan/camara-lin/english.php
Rowana
Two steps lower than the ships' cat
Currently 994mb at Aberdeen airport, down from 998 at 1120hrs Wind 21 kts
You can keep an eye on it here
http://meteocentre.com/cgi-bin/get_sao_stn?STN=EGPD&DELT=24
You can keep an eye on it here
http://meteocentre.com/cgi-bin/get_sao_stn?STN=EGPD&DELT=24
Rowana
Two steps lower than the ships' cat
Sgeir
Well-known member
Guessy games
RE: "EGPM 111250Z 15018KT 9999 FEW008 BKN018 08/06 Q0993 NOSIG =
EGPM 111220Z 15016KT 9999 SCT020 BKN040 08/06 Q0994 NOSIG =
EGPM 111150Z 14016KT 9999 FEW020 BKN040 07/06 Q0995 NOSIG =
EGPM 111120Z 17012KT 9999 FEW020 BKN060 07/04 Q0996 NOSIG =
EGPM 111050Z 18011KT 9999 FEW020 BKN060 07/03 Q0997 NOSIG =
EGPM 111020Z 17008KT 9999 FEW020 BKN070 07/03 Q0998 NOSIG = "
Is it an extract from the Da Vinci Code?
RE: "EGPM 111250Z 15018KT 9999 FEW008 BKN018 08/06 Q0993 NOSIG =
EGPM 111220Z 15016KT 9999 SCT020 BKN040 08/06 Q0994 NOSIG =
EGPM 111150Z 14016KT 9999 FEW020 BKN040 07/06 Q0995 NOSIG =
EGPM 111120Z 17012KT 9999 FEW020 BKN060 07/04 Q0996 NOSIG =
EGPM 111050Z 18011KT 9999 FEW020 BKN060 07/03 Q0997 NOSIG =
EGPM 111020Z 17008KT 9999 FEW020 BKN070 07/03 Q0998 NOSIG = "
Is it an extract from the Da Vinci Code?
BigART
Member
Re: Guessy games
EGPM = Scatsa Airfield, Shetlands (ICAO Designator)
111250Z = Date 11th at 1250Z
15018KT = Wind 150 deg at 19 kts
9999 = Better than 9999 metres visibility (they don't care if more)
FEW008 = a few clouds at 800 feet
BKN018 = Broken cloud layer at 1800 feet
08/06 = Temperature 8 deg C, Dewpoint 6 deg C (If temp=dewpoint, fog results)
Q0993 = QNH is 993 mb (local pressure corrected to sea level)
NOSIG = No significant weather.
A bit terse but you get used to it. Have a look here
EGPM = Scatsa Airfield, Shetlands (ICAO Designator)
111250Z = Date 11th at 1250Z
15018KT = Wind 150 deg at 19 kts
9999 = Better than 9999 metres visibility (they don't care if more)
FEW008 = a few clouds at 800 feet
BKN018 = Broken cloud layer at 1800 feet
08/06 = Temperature 8 deg C, Dewpoint 6 deg C (If temp=dewpoint, fog results)
Q0993 = QNH is 993 mb (local pressure corrected to sea level)
NOSIG = No significant weather.
A bit terse but you get used to it. Have a look here
BlueSkyNick
Active member
Re: And shetland data . .
This is from buoy 62105 which is off the west coast of Northern Ireland.
http://www.ndbc.noaa.gov/show_plot.php?station=62105&meas=wdpr&uom=E
SHows an interesting drop in the pressure, and corresponding increase in wind.
This is from buoy 62105 which is off the west coast of Northern Ireland.
http://www.ndbc.noaa.gov/show_plot.php?station=62105&meas=wdpr&uom=E
SHows an interesting drop in the pressure, and corresponding increase in wind.
DJE
Well-known member
Hi
1020mb is, I think, equivalent to about 30ft of water. So if it gets down to 944 does that mean that the sea will be raised by 2ft 3ins under the centre of the depression. Are we in for a bit of a storm surge in the North Sea?
1020mb is, I think, equivalent to about 30ft of water. So if it gets down to 944 does that mean that the sea will be raised by 2ft 3ins under the centre of the depression. Are we in for a bit of a storm surge in the North Sea?
jimi
Well-known member
Bejasus
New member
Re: Force 12 and 948 mb NW Scotland
This is what we have on one of the scales on our bridge.
F12 - Hurricane - 64-71 knots
F13 - - 72-80 knots
F14 - - 81-89 knots
F15 - - 90-99 knots
F16 - - 100-108 knots
F17 - - 109-118 knots
This is what we have on one of the scales on our bridge.
F12 - Hurricane - 64-71 knots
F13 - - 72-80 knots
F14 - - 81-89 knots
F15 - - 90-99 knots
F16 - - 100-108 knots
F17 - - 109-118 knots
Rowana
Two steps lower than the ships' cat
Now down to 988 /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif
Ohdrat
New member
Strangely still here (Inverness) has been quite a nice day.. sunshine even
BlueSkyNick
Active member
Re: Force 12 and 948 mb NW Scotland
Theyr is showing a wide range of pretty colours .... Looks like it should be getting a bit draughty in Inverness before too long.
Theyr is showing a wide range of pretty colours .... Looks like it should be getting a bit draughty in Inverness before too long.
Sgeir
Well-known member
Re: Force 12 and 948 mb NW Scotland
I'm told it was 48 kts in Ardrossan about an hour ago, with worse to come. Didn't ask whether that was gusts or average.
I'm told it was 48 kts in Ardrossan about an hour ago, with worse to come. Didn't ask whether that was gusts or average.