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Belgian weather blog December 2006

Weather news
1 Starting sunny with Ci, soon increasing to Cs & lowering to As with Ac. Top Tmax: Kleine Brogel 11,2C, Zaventem had 9,9C.
2 Very cloudy with Sc Ac As. Slight rain between 1500-1900. Top Tmax: Diest 12,0C, Zaventem had 11,7C.
3 After some morning red, a dull but windy day with light rain between 1200-1600 giving 4 mm. Breaking clouds towards sunset. Top Tmax: Kleine Brogel 12,7C, Zaventem 11,5C. Peak gusts: Ukkel 47KT, Lige 45 KT, Charleroi, Ostend, St-Hubert 41KT.
4 Rain shower around 0215, and light rain between 0330-1030 giving 5 mm. Afterwards partly cloudy with Cu. From 1530 increasing Ci Ac, and light rain from 1900 on giving 2 mm by midnight. Top Tmax: Chivres 12,5C, Zaventem had 11,7C.
5 After some short breaks, increasing Sc Ac cloudiness during forenoon with light rain between 1400-2000 giving 3mm. Top Tmax: Diest 15,6C, Zaventem had 15,2C. Peak gust: Ukkel 41KT.
6 Partly cloudy to cloudy with Cu Sc but one rain shower between 1830-1930 giving 3 mm. Top Tmax: Semmerzake 11,6C, Zaventem had 10,3C.
7 Light to moderate rain between 0730-1500 giving 10 mm. Couple of light rain showers between 1645-1815. Top Tmax: Ghent 11,8C, Zaventem had 11,5C. Top gust: Charleroi 46KT, Ostend, Ukkel, Ghent & Spa 43KT, Zaventem, Koksijde & Beauvechain 41KT. Today, in afternoon, a line of moderate to (isolated) heavy rain showers passed northern parts of Belgium including weak thunderstorm activity over provinces of West & Oost-Vlaanderen and Antwerp. A weak tornado did presumable occur at Evergem and Wachtebeke in province Oost-Vlaanderen and this might be concluded due to the observed damage and very high forecasted helicity of around 500 m/s. Check also skystef's blog (in Dutch).
8 Very cloudy to overcast with intermittent light rain between 0600-2300 giving 8 mm. Very windy between 1500-1900. Top Tmax: Kleine Brogel 12,3C, Zaventem had 11,7C. Top gusts: Buzenol 57KT, Spa 52KT, Charleroi 49KT, St-Hubert 48KT, Zaventem, Beauvechain & Lige 47KT, Florennes 45KT, Ukkel & Kleine Brogel 43KT, Elsenborn 41KT.
9 Partly cloudy to cloudy with Cu Sc. Few drops out of a Cu congestus at 1540. Top Tmax: Ghent 9,3C, Zaventem 8,2C. 
10 Tmin 0,0C and hoar frost. Sunny day with some thin Ci & tempo Cu fractus. Top Tmax: Ghent 8,3C, Zaventem had 7,1C.
11 Dull day with light intermittent rain from 0400 on giving 10 mm by midnight. Top Tmax: Ostend 10,4C, Zaventem had 7,9C.
12 Rain eased off around 0300 giving 5 mm. Quite sunny with a few Sc fields. Top Tmax: Koksijde 9,8C, Zaventem had 8,9C.
13 Very cloudy with Sc, slight rain between 0300-0500 & 1100-1300. Top Tmax: Koksijde 12,1C, Zaventem had 10,3C.
14 Starting cloudy to very cloudy with Sc, breaking up after 1430 leaving some Ci. Top Tmax: Koksijde 10,9C, Zaventem 10,4C.
15 Besides some Ci, a quite sunny day. Top Tmax: Spa 11,2C, Zaventem had 9,9C.
16 Overcast & rain between 0900-1700 = 9 mm, afterwards clearing skies. Top Tmax: Ostend & Koksijde 8,7C, Zaventem 7,4C.
17 Partly cloudy to cloudy with Cu Sc. A few light rain showers 1630, 2000. Tmax: Ostend & Koksijde 9,1C, Zaventem had 6,6C.
18 First air frost of the new winter season in the garden: -1,5C. Mist & fog with clear skies from 0400 on, becoming overcast with Stratus from 0930 on & remaining misty / foggy all day long. Top Tmax: Florennes 6,2C, Zaventem had 2,9C.
19 After 0100 the fog thinned to mist due to drizzle, during the afternoon clouds temporary broke with some nice sunny spells but after 1700 the fog returned. Top Tmax: Semmerzake 6,0C, Zaventem had 3,8C.  
20 Fog till 0930, Tmin dropped to -0,8C, afterwards remaining very cloudy with Sc. Top Tmax Ostend 7,1C, Zaventem had 4,1C.
21 Very cloudy with Sc + slight drizzle 1330-1500 followed by a few mini breaks. Top Tmax: Semmerzake 9,0C, Zaventem 6,4C.
22 Very cloudy with Sc, afternoon large breaks, during evening Sc overcast. Top Tmax: Kleine Brogel 9,2C, Zaventem 7,1C.
23 Entire period St overcast & misty. Top Tmax: Mont Rigi 8,2C, Zaventem had 3,7C.
24 Entire period St overcast & misty which was a bit denser than yesterday. Top Tmax: Mont Rigi 11,3C, Zaventem had 1,5C.
25 Entire period St overcast, but from noon on much improved visibilities. Top Tmax: Mont Rigi 8,3C, Zaventem had 3,8C.
26 Entire period St overcast & misty but during the evening much improved visibilities. A proud moment in the new winter season: first snow grains fell around 1830 with slightly negative air temperatures. Top Tmax: Mont Rigi 9,4C, Zaventem had 1,3C. Today at some locations T did not rise >0C: Florennes -0,9C,  Ernage & Dourbes -0,4C, Beauvechain & Charleroi -0,3C, Buzenol & Humain -0,1C.
27 Tmin in garden reached -0,1C. Entire period St overcast with intermittent slight snow grains, after 2200 turning to slight drizzle. Top Tmax: Ghent 1,2C, Zaventem had 0,4C. Lowest Tmax: Elsenborn -3,0C.
28 Entire period Sc overcast with light rain between 0600-0900 giving 2 mm. Top Tmax: Koksijde 5,7C, Zaventem had 3,2C.
29 Sc cleared off around 0400 leaving some Ci. Towards sunset tempo Ac. Top Tmax: Deurne 8,5C, Zaventem had 8,2C.
30 Becoming cloudy to overcast with As, later Ns as light rain fell between 0400-1100 giving 6 mm. Remaining Sc overcast with renewal of light rain between 1700-2100 giving another 3 mm. From 1900 on, wind gusts above 30KT with even peaks of 50KT around 2230. Top Tmax: Koksijde 11,4C, Zaventem had 9,2C. Top peak gust: Ostend 60KT which was observed around 2200. An earlier METAR showed for Ostend: EBOS 302050Z 24038G58KT 9999 SCT030 11/05 Q1010 NOSIG. Other stations with severe gusts > 50KT in the evening: Koksijde, Deurne, Charleroi & Ernage with 52KT and Zaventem 50KT.
31 A couple of rain showers during the night and forenoon. Afterwards some breaks through the Cs As, tempo showery rain between 1900-2100. Today's total was 3 mm. Gusty wind of >30KT from 1800 onwards with severe gust of 40KT around 2100. Top Tmax: Ghent 11,4C, Zaventem had 10,9C. During the evening top gusts: Zaventem 44KT followed by Ostend with 42KT.   

Note: all times are Central European Time



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