Weather pictures & report of January 3 2010

 

Snow related to cold occlusion.


Synopsis: at 500 hPa, passage of a trough related to a cut-off low centered over the Continent. On the ground a cold occlusion crossed Belgium with behind subzero temperatures at all levels. During the night and morning, this front produced in most parts of Belgium a couple cm of snow and introduced a ten day cold wave. All pictures were taken at Kampenhout (central Belgium), hours in local time (CET). 

 

Surface analysis of January 3 2010 at 0100 CET. Cold occlusion along border Belgian-Holland moving SE-wards. (Source chart: Belgocontrol)

 

Loop of 5 surface analyses (of 03, 04, 05, 06 and 07 CET) with weather plots showing the movement of the small surface low and associated wintry precipitation belt. (Source: meteocentre.com)

 

Upper air analysis 500 hPa of January 3 2010 at 0100 CET. Our region just south of an incoming trough related to the cut-off low centered over northern Germany. (Source chart: DWD via wetter3)

 

Loop of forecasted soundings for Brussels of January 2-3 2010 between 1900-1300 CET. At first the temperature in the bottom layer was slightly above zero degrees giving also a wet component on the solid precipitation. Between 0300-0600, at all levels subzero, so the last precipitations fell as dry snow. Check also the remarkable veering winds in the levels below 850 hPa. (Source: weatheronline.co.uk)

 

03/01/2010 0200-0615 CET. Satellite loop in the infra-red channel. Layered stratiform cloudiness over Belgium. Later on breaks appear over Holland, reaching Belgium by the morning. (Source sat picture: Eumetsat via Sat24.com)

 

Radar loop (rainfall rate in mm/hr) of January 3 2010 between 0110-0720 CET. A rather scattered (showery) precipitation belt crosses the area. Most precipitation (sometimes moderate intensity) fell over northern, central and eastern parts of Belgium. (Source radar picture: Belgocontrol)

 

Some metars (hours in UTC) of Brussels Airport (EBBR). Translation: copy paste each obs via metar-decoder

EBBR 022320Z 22011KT CAVOK 01/M02 Q1017 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 022350Z 22010KT 9999 FEW023 01/M01 Q1017 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 030020Z 23009KT 9999 -SNRA FEW033 SCT044 01/M01 Q1017 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 030050Z 23010KT 9999 FEW010 BKN040 01/M01 Q1017 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 030120Z 23010KT 8000 -SNRA FEW004 BKN010 01/M01 Q1016 R25L/290079 R02/290073 R25R/290073 TEMPO 4000 SNRA
EBBR 030150Z 23011KT 3500 SNRA BKN008 01/M01 Q1016 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 030220Z 24010KT 2000 SN FEW002 BKN009 00/M01 Q1016 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 030250Z 28008KT 2100 SN SCT000 BKN010 00/M01 Q1017 R25L/290079 R02/290073 R25R/290073 NOSIG
EBBR 030320Z 27008KT 4000 -SN BKN004 BKN008 00/M01 Q1017 RESN R25L/590371 R02/590362 R25R/590348 NOSIG
EBBR 030350Z 27007KT 4900 -SN BKN005 00/M01 Q1017 R25L/590371 R02/590362 R25R/590348 NOSIG
EBBR 030420Z 28007KT 4900 -SN BKN003 00/M01 Q1017 R25L/590371 R02/590362 R25R/590348 NOSIG
EBBR 030450Z 31006KT 2000 -SN SCT001 BKN003 M00/M01 Q1018 R25L/691055 R02//99// R25R/691058 BECMG 7000 NSW
EBBR 030520Z 35008KT 3300 -SN SCT003 BKN004 M00/M02 Q1018 R25L/691055 R02//99// R25R/691058 BECMG 7000 NSW
EBBR 030550Z 02010KT 360V070 2000 BR BKN003 SCT006 M01/M03 Q1018 R25L/691055 R02//99// R25R/691058 BECMG 7000 NSW
EBBR 030620Z 01009KT 320V110 4500 BR BKN004 M02/M03 Q1019 R25L/691055 R02//99// R25R/691058 BECMG 7000 NSW
EBBR 030650Z 02006KT 6000 SCT007 BKN010 M02/M04 Q1019 R25L/691055 R02//99// R25R/691058 BECMG BKN015
EBBR 030720Z 02007KT 8000 SCT010 BKN034 M03/M05 Q1020 R07R/691046 R02/691062 R07L/650863 NOSIG
EBBR 030750Z 01006KT 9999 FEW034 M05/M06 Q1020 R07R/691046 R02/691062 R07L/650863 NOSIG
EBBR 030820Z 02006KT 9999 FEW034 M05/M07 Q1021 R07R/691046 R02/691062 R07L/650863 NOSIG
EBBR 030850Z 02005KT CAVOK M06/M08 Q1021 R07R/691046 R02/691062 R07L/650863 NOSIG
 

 

Snow height (in cm) from the official meteo stations based on some synops taken from different hours.

 

Remote sense satellite Terra with a view in the visible channel of the snow in Belgium. Over the Ardennes still some cloudiness present. Clear indication that West-Flanders had hardly a snow cover, this due to the smaller amounts of precipitation and also slightly milder air due to the rather strong winds blowing from the Northsea. Pics below were taken from location red "K". (Source: Image courtesy of MODIS Rapid Response Project at NASA/GSFC)

 

Remote sense satellite Aqua with a wider view in the visible channel. The Low Countries well covered by snow except some parts in the west. Over the North Sea still some Cb's present which moved towards the U.K. (Source: Image courtesy of MODIS Rapid Response Project at NASA/GSFC)

 

Remote sense satellite Terra with a view in the visible channel over the U.K. on January 7 after more showers produced a deposit resulting in the rare event that the entire Island was covered by snow. (Source: Image courtesy of MODIS Rapid Response Project at NASA/GSFC)

 

03/01/2010 0829. Taken in the early morning: proof of 3 cm of snow.

 

03/01/2010 0833. Proof of the date: first snow of the new decade.

 

03/01/2010 0835. The roads under a thin cover of snow.

 

03/01/2010 0844 SW. View into the fields.

 

03/01/2010 0847 NE. Couple timeless views of "Den Dreef".

 

03/01/2010 0848 NE.

 

03/01/2010 0858 W. Trio postcard views of the snow.

 

03/01/2010 0859 S.

 

03/01/2010 0905 NE.

 

05/01/2010 1330 SW. Couple days later opportunity was taken to make some sunny pics.

 

05/01/2010 1339 SE.

 

05/01/2010 1342 NW.

 

05/01/2010 1348 WNW.

 

05/01/2010 1350 SE.

 

05/01/2010 1350 SSE.

 

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