December 2013 UK Storms pressure changes.

RayProudfoot · Post by **RayProudfoot** » Mon 23 Dec 2013 3:03 pm

Mark,

I think your record will go. Although pressure is still dropping it's only 2.12hPa/hr now. Still producing an impressive graph.

press.png

My December record low is 971.56 on 14 Dec last year. That looks vulnerable.

mcrossley · Post by **mcrossley** » Mon 23 Dec 2013 4:06 pm

Never mind the pressure records, the downpour we just had that flooded the road up to a neighbours front door just broke some December records (and I was out getting some last minute bits'n'pieces in it

):

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Highest Rain Rate	90.8 mm/hr	23-Dec-2013 at 15:05
Highest Hourly Rainfall	11.4 mm	23-Dec-2013 at 15:14

And the years highest average wind speed for me today at 21 mph.

RayProudfoot · Post by **RayProudfoot** » Mon 23 Dec 2013 4:48 pm

Similar readings here Mark...

Rainfall Rate Max 4.09 in/hr at 14:53 but it doesn't come close to last Wednesday's deluge of 6.19" / hr which remains my highest December rain rate.

Hope you've dried out now. Looks like pressure has bottomed out at 978hpa just after 4pm.

mikechristelow · Post by **mikechristelow** » Mon 23 Dec 2013 4:50 pm

That is one heck of a rain rate!

We've had very little rain (so far?) - just 5.2mm today with the highest hourly of 2.6mm at 1223 with rate of 12mm/hr. It was, rain-wise, a lot heavier and harder this time last year.

RayProudfoot · Post by **RayProudfoot** » Mon 23 Dec 2013 5:10 pm

mikechristelow wrote:That is one heck of a rain rate!

Don't worry Mike, next time you'll get lucky!

logjam · Post by **logjam** » Mon 23 Dec 2013 5:33 pm

Well, I didn't break any records this time, although the wind speeds and gusts came pretty close. I was a bit too far south to get the lowest pressure but again I was within about 6 of my record. Still, there is always Friday. A low may come a little further south that day. We didn't get a great deal of rain either, but what we are getting is coming off the fields and flooding the roads

EDIT: 19:43. The pressure has started dropping significantly once more, so who knows. It now only needs to drop 2.5.

mikechristelow · Post by **mikechristelow** » Mon 23 Dec 2013 8:07 pm

Yes, it's falling quickly again here now, and down to 974.7hPa... No further rain yet though and wind relatively quiet at F3...

logjam · Post by **logjam** » Mon 23 Dec 2013 8:53 pm

The record is now broken, and it is still dropping. 973.2 and falling - 3/hr
The wind has suddenly increased giving gusts of 49.4 mph
Highest wind speeds now 41.2mph.

mikechristelow · Post by **mikechristelow** » Mon 23 Dec 2013 9:57 pm

Pressure falling very rapidly - for the second time today. Looks like my all-time record of 969.6 (14 Dec 2012) might be up for beating!

RayProudfoot · Post by **RayProudfoot** » Mon 23 Dec 2013 10:03 pm

Same here - pressure falling very rapidly .... again! December record has gone and it's only 3.2hPa from my all-time record of 966.85 back on 8 Nov 2010. Suspect it will go before midnight.

jdc · Post by **jdc** » Mon 23 Dec 2013 10:14 pm

Started today at 996.7 currently 961.7mb and still falling rapidly. Largest drop 4.75mb/hr.
Wind has been steady at F5 - 6 all day.

My lowest all time 24th December 1999 - 951.0 mb

RayProudfoot · Post by **RayProudfoot** » Mon 23 Dec 2013 11:37 pm

All-time low pressure record well and truly smashed. 965.1 and still falling at 2.7hPa/hr. Unprecedented day.

Tau Bootis · Post by **Tau Bootis** » Tue 24 Dec 2013 12:13 am

Yeah my record has gone also but only by 0.2hPa .. 966.2 at 23.41 and now its creeping up a little.

mcrossley · Post by **mcrossley** » Tue 24 Dec 2013 12:17 am

Looks like the minimum occurred here just before midnight, a new all time low of 964.5 hPa at 23:52 on 23 December 2013. Previous was 965.7 hPa on 2010-11-08.

The pressure change yesterday was also a record breaking 43.3 hPa.

Other December records broken were:
Highest Rain Rate of 90.8 mm/hr at 15:05
Highest Hourly Rainfall of 11.4 mm at 15:14
Highest Daily Rainfall of 19.0 mm

Quite a day!

It looks like Steve will cop it tomorrow evening, hope it goes OK Steve.

Spider-Vice · Post by **Spider-Vice** » Tue 24 Dec 2013 2:32 am

Things are looking pretty violent to there! My best wishes! In here everything is of course much calmer but we'll have some strong wind and significant rain, let's hope the trusty FO handles this. It's so random

Cumulus Support

December 2013 UK Storms pressure changes.

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December 2013 UK Storms pressure changes.

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