Cumulus Support

Identical to Ray - new all-time low pressure record of 963.2hPa at 2238 14/02/14.

Pressure bottomed out at 963.09 at 00:07 this morning. It has since risen 13hPa in 9 hours.

Windforce 6 last night Temp at 04:21 12,1 C bizar warm ( 12.3 is max for februari in 2012) at the coast force 9 gusts gusts up to 100 km/h lots of damage in the west of The Netherlands.

Had some nice winds on the backside of a low last night, winds were 77 km/h sustained (not a record), but gusted to 114 km/h (new record)

After depression Stephanie I have got this, to complement the graph I posted earlier:



I had 95 kph sustained winds for over two minutes and successive 100 km/h gusts. Here's an excerpt I decoded from the data files with all the gusts:
18:27: 84,6 km/h
18:28: 102,0 km/h
18:29: 120,0 km/h
18:30: 116,0 km/h
18:31: 122,0 km/h
18:32: 94,3 km/h
18:33: 80,6 km/h

The Fine Offset behaved really well there.

Highest ever monthly wind run during February 2014 - 11266 miles!

Includes the highest daily wind run on 8th February 2014 at 676 miles.

Highest Rain Rate recorded today at 1357:

Mike,

I'm a little surprised that's your highest rain rate. You must have missed the storms in summer last year. I had a reading of 9" (225mm) an hour in one brief cloudburst last July.

Did you notice the sudden drop in temperature as the cold front passed through?

At 13:53 it was 14.4C. At 14:28 it had dropped to 9.3C. That's 5.1C (or 9.2F) in 35 minutes. If you were out you might have noticed it.

It's probably not a record but since Cumulus doesn't record these events it's hard to say. Interesting nevertheless.

All Highest Rain Records broken a After a Storm this eveing in Sheffield.

Highest Rain Rate 79.2 mm/hr at 18:52 on 30 April 2014
Highest Hourly Rainfall 27.9 mm at 19:32 on 30 April 2014
Highest Daily Rainfall 29.7 mm on 30 April 2014

Highest rainfall rate of 60.4mm/hr* on 20th May at 11:27 courtesy of a thunderstorm now heading North into west Wales.
(Thunderstorms are not particularly common here.)

*average over 5 minutes.

Slightly higher rainfall rate of 68.1 mm/hr at 13:20 on 07 June 2014, again courtesy of a thunderstorm. The rainfall didn't show up on the rainfall radar until it was right over me, and then it suddenly dropped.

First time in the 2 1/2 years since I've been running my Davis Vantage Vue that it hit 100% humidity early this morning after a previous day with heavy rainfall.

Usually the max humidity is 98%, or once in awhile 99% but never saw 100% before this morning.

My oldest record was broken this afternoon. It goes back to July 2009.

A new rainfall rate of 10.29"/hr (261mm/hr).
Total accumulation was only 0.54". It was short and very intense.

Looks like you got a drenching that passed me by Ray, only managed 13.2mm/hr at 1311hrs. By the time I got back from London, the road surfaces were bone dry again

A new all-time for me too, just a little less than yours at 225.8 mm/h @ 14:25 - I'd be just about at the M4 on the way home by then.