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Rainfall over SE England, 20-23 Nov 2003


After a dry summer and autumn, heavy rain fell over south-east England between 20-23 November 2003. Using data available on the 25th, November is the wettest month of the year in the south-east/central southern region with 117.6 mm. Previously during 2003, January was the wettest with 86.8 mm.

2003 monthly weather summary | Dry weather during 2003

Synoptic situation

The animation below (12-hourly time steps) shows the pressure systems and fronts responsible for the rainfall over south-east England between 20-23 November 2003.

animation

Rainfall station data 20-23 November

The table below shows the highest rainfall totals recorded between 20-23 November 2003, using data available on 24 November 2003. Most of the rain fell in the 48 hours between 2100 on 21 November and 2100 on 23 November.

Rainfall 20-23 November 2003
Station
20 Nov
(mm)

21 Nov
(mm)

22 Nov
(mm)
23 Nov
(mm)
20-23 Nov
(mm)
Nov monthly average (mm)
4-day total as percent of average

48 hour total ending 21:00 on 23 Nov

Charlwood
10.0
25.2
38.4
20.4
94.0
79.0
119%
81.4
Wisley
5.8
20.8
33.0
25.4
85.0
61.9
137%
76.4
Odiham
5.4
13.8
31.4
30.8
81.4
72.2
113%
71.4
Kenley Airfield
10.4
13.0
35.2
22.4
81.0
79.3
102%
67.6
Herstmonceux
9.6
17.2
40.0
7.8
74.6
93.8
79%
63.4

Guernsey Airport had 75.1 mm during the four days 20-23 November.

Averages are calculated for the period 1961-90 and have been estimated where a 30 year record is not available.

Rainfall maps for 20-23 November

The maps below show the 4-day rainfall totals for 20-23 November 2003. The anomaly map expresses the total as a percentage of the the 1961-90 long-term November average.

 

 

48-hour rainfall maps

Most of the rain fell in the 48 hours between 21:00 on 21 November and 2100 on 23 November. The maps below show rainfall totals for this period. The anomaly map expresses the total as a percentage of the the 1961-90 long-term November average.

Rainfall 20-23 Nov 2003
Anomaly 20-23 Nov 2003
  48-hour rainfall
48-hour anomaly

Maps use information available on 24 November 2003.