Laatste SFC Analyze en verwachting volgens Belgocontrol
Bericht van: Bart (Oostakker) , 11-03-2013 18:24
1. SYNOPTIC SITUATION
WEATHER DURING PERIOD IS DETERMINED BY A MOD E-NE'LY AIRFLOW IN LOW
LEVELS BETWEEN AN ANTICYCLONE NEAR ICELAND AND A DEEP LOW OVER
NW-FRANCE. IN THIS UNDERCUTTING AIRFLOW COLD AND RELATIVELY MOIST
POLAR AIR IS ADVECTED ACROSS OUR COUNTRY; DURING PERIOD THE LOW OVER
NW-FRANCE WILL SLOWLY SHIFT EASTWARDS WITH THE PREFRONTAL
CLOUDINESS AND WINTRY PRECIPITATIONS OF ITS ASSOCIATED OCCLUSION
INVADING OUR SOUTHERN REGIONS ALREADY AT BEGINNING OF PERIOD. SNOW
ZONE WILL SLOWLY SPREAD N-NEWARDS ENTERING OUR CENTRAL PARTS FROM
LATE FORENOON/ NOON ON AND FINALLY OUR N-NE'RN REGIONS FROM NOON/
EARLY AFTERNOON.IN AFTERNOON AND EARLY EVENING A FIRST MORE ACTIVE
SNOW ZONE IS EXPECTED TO SHIFT EASTWARDS ACROSS OUR SOUTHERN PARTS
(S OF LINE EBCV-EBBR-EHBK) WITH A SECOND ACTIVE ZONE TRAILING OVER
OUR S-SE'RN PARTS BY END OF THE FOLLOWING NIGHT AND TOMORROW IN
FORENOON.ANYWAY, A CLOSE WATCH HAS TO BE KEPT AS POSITION OF ACTIVE
SNOW ZONE CHANGES FORM RUN TO RUN.
2. WEATHER
OVER MAIN AREAS MOSTLY CLOUDY WITH MASSIVE LOW CLOUD (HILL FOG LIKELY
OVER ARDENNES) AND WITH A SMALL RISK FOR SOME LIGHT SNOW AND/ OR
SNOW GRAINS (ESP OVER S-SE), OVER N-NW TEMPO AT BEGINNING OF PERIOD
POSSIBLY SOME BREAKS RAPIDLY OVER S-SW INVASION OF THICKER PREFRONTAL
CLOUDINESS WITH OUTBREAKS OF LIGHT SNOW (ACCUMULATION 1-3CM) SLOWLY
SPREADING N-NE BUT N-NE'RN REGIONS REMAINING OUT OF SNOW ZONE TILL
NOON/EARLY AFTERNOON.IN AFTERNOON AND EVENING TEMPO ACTIVE SNOW FALL
EXPECTED, ESP OVER OUR S-SE'RN PARTS WITH EXPECTED ACCUMULATION OVER
MAIN AREAS 3-5CM, OVER S-SE 05-10CM AND OVER ARDENNES 10-15CM.
IN THIS ACTIVE SNOW ZONE MASSIVE LOW CLOUD, POOR VISIBILITIES AND
STRONG NE'LY WINDS WILL PREVAIL.
3. WINDS
SURFACE : NE 040-070 DEG 10-15KT, 15-20KT ALONG COASTAL
AREAS BECMG IN AFTERNOON AND EVENING 12-17KT WITH GUSTS 20-25KT
INLAND AND 20-25KT WITH GUSTS 30-35KT ALONG COASTAL AREAS.
AT 1000FT / 300M : NE 050-060 DEG 20-25KT, OVER SE 15-20KT
AT 2000FT / 600M :E-NE 060-070 DEG 25-30KT, OVER SE 15-20KT
AT 3000FT / 1000M :E-NE 070-080 DEG 30-35KT, OVER SE 20-25KT
AT 4000FT / 1300M :E-NE 070-080 DEG 30-35KT, OVER SE 20-25KT
AT 5000FT / 1600M :E-NE 070-080 DEG 20-25KT, OVER SE 15-20KT
AT 6000FT / 2000M :E 090-100 DEG 20-25KT, OVER SE 15-20KT
AT 10000FT / 3000M :W 270-280 DEG 20-25KT BECMG S-SW 200-220 DEG
15-20KT
4. VISIBILITY
OUT OF SNOW ZONE IN GENERAL 8-12KM OVER CENTRAL AND NORTHERN PARTS
AND 3-5KM OVER S-SE WITH LOC LESS THAN 1KM OVER ARDENNES BECOMING
IN SNOW ZONE IN GENERAL 2-4KM AND TEMPO IN MOD SNOW 800-1500M, OVER
ARDENNES MAINLY 500-1500M AND LOC EVEN 100-500M.
5. CLOUDINESS
CUMULIFORM CLOUDS:NIL
INITIAL MAX
BASE (FT) XXXX 2000 3000 XXXX
TOPS (FT) XXXX XXXX XXXX XXXX
QUANTITY XXXX XXXX XXXX XXXX
SURF TEMP ('C) XXXX XXXX XXXX XXXX
OTHER CLOUDS:N OF LINE EBCV-EBBR-EHBK AT FIRST BKN-OVC SC 1500-2000FT
TOPS 3-4000FT WITH TEMPO IN MORNING HOURS RISK FOR SCT-BKN ST
800-1300FT, ELSEWHERE BKN-OVC ST 600-1200FT, OVER ARDENNES 300-700FT
AND LOC 100-300FT FROM S-SW IN FORENOON INVASION OF PREFRONTAL
NS AS CS 5-6000FT OPS 22-25000FT WITH BELOW IN AFTERNOON/EVENING IN
FRONTAL ZONE BKN-OVC ST 300-700 FT, OVER ARDENNES ANDS TEMPO IN MOD
SNOW INLAND 100-300FT.
6. ISOTHERM
0'C: SFC
-10'C: 3000FT OVER N-NE,5000FT CENTRAL-BELGIUM, 8000FT OVER S-SE
7. TEMPERATURE
MAX MS00/MS04C
8. MINIMUM QNH: 1001 HPA
9. WARNING
-FREEZING FOG OVER TOPS ARDENNES WHOLE PERIOD
-IN FRONTAL ZONE BKN-OVC LOW STRATUS BELOW 1000FT AND OVER ARDENNES
WHOLE PERIOD
-MOD/SEV ICING SFC/FL120 IN FRONTAL ZONE
-MOD TURB BELOW FL030 IN FRONTAL ZONE
-SNOW FALL OVER ALL REGIONS
-PERMANENT AIR AND GROUND FROST OVER ALL REGIONS
-STRONG SFC WINDS WITH ALONG COASTAL AREAS GUSTS UP TO 30-35KT.
10. SOARING CAPABILITIES
POOR
11. OUTLOOK NEXT 24HRS
SNOW ZONE WILL REMAIN OVER COUNTRY THROUGHOUT FOLLOWING NIGHT WITH
STRONG NE'LY WINDS (INLAND GUSTS 25-30KT, ALONG COASTAL REGIONS
35-40KT),MASSIVE LOW CLOUD (WIDESPREAD HILL FOG OVER ARDENNES) AND
POOR VISIBILITIES. EXPECTED TOTAL ACCUMULATION IS 02-05CM OVER N-NW,
5-10CM INLAND, OVER S-SE 10-15CM AND 15-20CM OVER ARDENNES.MINIMA
MS02/MS07C.
SNOW ZONE WILL SLOWLY EVACUATE E-SE TOMORROW LEAVING OUR W-NW'RN
PARTS IN FORENOON, OUR CENTRAL AND NE'RN PARTS IN AFTERNOON AND
FINALLY OUR SE'RN REGIONS IN EVENING HOURS. MAXIMA MS00/MS05C. SLOWLY
WEAKENING NE'LY WINDS.
Bron: Belgocontrol
WEATHER DURING PERIOD IS DETERMINED BY A MOD E-NE'LY AIRFLOW IN LOW
LEVELS BETWEEN AN ANTICYCLONE NEAR ICELAND AND A DEEP LOW OVER
NW-FRANCE. IN THIS UNDERCUTTING AIRFLOW COLD AND RELATIVELY MOIST
POLAR AIR IS ADVECTED ACROSS OUR COUNTRY; DURING PERIOD THE LOW OVER
NW-FRANCE WILL SLOWLY SHIFT EASTWARDS WITH THE PREFRONTAL
CLOUDINESS AND WINTRY PRECIPITATIONS OF ITS ASSOCIATED OCCLUSION
INVADING OUR SOUTHERN REGIONS ALREADY AT BEGINNING OF PERIOD. SNOW
ZONE WILL SLOWLY SPREAD N-NEWARDS ENTERING OUR CENTRAL PARTS FROM
LATE FORENOON/ NOON ON AND FINALLY OUR N-NE'RN REGIONS FROM NOON/
EARLY AFTERNOON.IN AFTERNOON AND EARLY EVENING A FIRST MORE ACTIVE
SNOW ZONE IS EXPECTED TO SHIFT EASTWARDS ACROSS OUR SOUTHERN PARTS
(S OF LINE EBCV-EBBR-EHBK) WITH A SECOND ACTIVE ZONE TRAILING OVER
OUR S-SE'RN PARTS BY END OF THE FOLLOWING NIGHT AND TOMORROW IN
FORENOON.ANYWAY, A CLOSE WATCH HAS TO BE KEPT AS POSITION OF ACTIVE
SNOW ZONE CHANGES FORM RUN TO RUN.
2. WEATHER
OVER MAIN AREAS MOSTLY CLOUDY WITH MASSIVE LOW CLOUD (HILL FOG LIKELY
OVER ARDENNES) AND WITH A SMALL RISK FOR SOME LIGHT SNOW AND/ OR
SNOW GRAINS (ESP OVER S-SE), OVER N-NW TEMPO AT BEGINNING OF PERIOD
POSSIBLY SOME BREAKS RAPIDLY OVER S-SW INVASION OF THICKER PREFRONTAL
CLOUDINESS WITH OUTBREAKS OF LIGHT SNOW (ACCUMULATION 1-3CM) SLOWLY
SPREADING N-NE BUT N-NE'RN REGIONS REMAINING OUT OF SNOW ZONE TILL
NOON/EARLY AFTERNOON.IN AFTERNOON AND EVENING TEMPO ACTIVE SNOW FALL
EXPECTED, ESP OVER OUR S-SE'RN PARTS WITH EXPECTED ACCUMULATION OVER
MAIN AREAS 3-5CM, OVER S-SE 05-10CM AND OVER ARDENNES 10-15CM.
IN THIS ACTIVE SNOW ZONE MASSIVE LOW CLOUD, POOR VISIBILITIES AND
STRONG NE'LY WINDS WILL PREVAIL.
3. WINDS
SURFACE : NE 040-070 DEG 10-15KT, 15-20KT ALONG COASTAL
AREAS BECMG IN AFTERNOON AND EVENING 12-17KT WITH GUSTS 20-25KT
INLAND AND 20-25KT WITH GUSTS 30-35KT ALONG COASTAL AREAS.
AT 1000FT / 300M : NE 050-060 DEG 20-25KT, OVER SE 15-20KT
AT 2000FT / 600M :E-NE 060-070 DEG 25-30KT, OVER SE 15-20KT
AT 3000FT / 1000M :E-NE 070-080 DEG 30-35KT, OVER SE 20-25KT
AT 4000FT / 1300M :E-NE 070-080 DEG 30-35KT, OVER SE 20-25KT
AT 5000FT / 1600M :E-NE 070-080 DEG 20-25KT, OVER SE 15-20KT
AT 6000FT / 2000M :E 090-100 DEG 20-25KT, OVER SE 15-20KT
AT 10000FT / 3000M :W 270-280 DEG 20-25KT BECMG S-SW 200-220 DEG
15-20KT
4. VISIBILITY
OUT OF SNOW ZONE IN GENERAL 8-12KM OVER CENTRAL AND NORTHERN PARTS
AND 3-5KM OVER S-SE WITH LOC LESS THAN 1KM OVER ARDENNES BECOMING
IN SNOW ZONE IN GENERAL 2-4KM AND TEMPO IN MOD SNOW 800-1500M, OVER
ARDENNES MAINLY 500-1500M AND LOC EVEN 100-500M.
5. CLOUDINESS
CUMULIFORM CLOUDS:NIL
INITIAL MAX
BASE (FT) XXXX 2000 3000 XXXX
TOPS (FT) XXXX XXXX XXXX XXXX
QUANTITY XXXX XXXX XXXX XXXX
SURF TEMP ('C) XXXX XXXX XXXX XXXX
OTHER CLOUDS:N OF LINE EBCV-EBBR-EHBK AT FIRST BKN-OVC SC 1500-2000FT
TOPS 3-4000FT WITH TEMPO IN MORNING HOURS RISK FOR SCT-BKN ST
800-1300FT, ELSEWHERE BKN-OVC ST 600-1200FT, OVER ARDENNES 300-700FT
AND LOC 100-300FT FROM S-SW IN FORENOON INVASION OF PREFRONTAL
NS AS CS 5-6000FT OPS 22-25000FT WITH BELOW IN AFTERNOON/EVENING IN
FRONTAL ZONE BKN-OVC ST 300-700 FT, OVER ARDENNES ANDS TEMPO IN MOD
SNOW INLAND 100-300FT.
6. ISOTHERM
0'C: SFC
-10'C: 3000FT OVER N-NE,5000FT CENTRAL-BELGIUM, 8000FT OVER S-SE
7. TEMPERATURE
MAX MS00/MS04C
8. MINIMUM QNH: 1001 HPA
9. WARNING
-FREEZING FOG OVER TOPS ARDENNES WHOLE PERIOD
-IN FRONTAL ZONE BKN-OVC LOW STRATUS BELOW 1000FT AND OVER ARDENNES
WHOLE PERIOD
-MOD/SEV ICING SFC/FL120 IN FRONTAL ZONE
-MOD TURB BELOW FL030 IN FRONTAL ZONE
-SNOW FALL OVER ALL REGIONS
-PERMANENT AIR AND GROUND FROST OVER ALL REGIONS
-STRONG SFC WINDS WITH ALONG COASTAL AREAS GUSTS UP TO 30-35KT.
10. SOARING CAPABILITIES
POOR
11. OUTLOOK NEXT 24HRS
SNOW ZONE WILL REMAIN OVER COUNTRY THROUGHOUT FOLLOWING NIGHT WITH
STRONG NE'LY WINDS (INLAND GUSTS 25-30KT, ALONG COASTAL REGIONS
35-40KT),MASSIVE LOW CLOUD (WIDESPREAD HILL FOG OVER ARDENNES) AND
POOR VISIBILITIES. EXPECTED TOTAL ACCUMULATION IS 02-05CM OVER N-NW,
5-10CM INLAND, OVER S-SE 10-15CM AND 15-20CM OVER ARDENNES.MINIMA
MS02/MS07C.
SNOW ZONE WILL SLOWLY EVACUATE E-SE TOMORROW LEAVING OUR W-NW'RN
PARTS IN FORENOON, OUR CENTRAL AND NE'RN PARTS IN AFTERNOON AND
FINALLY OUR SE'RN REGIONS IN EVENING HOURS. MAXIMA MS00/MS05C. SLOWLY
WEAKENING NE'LY WINDS.
Bron: Belgocontrol
Weerfoto's op mijn pagina www.facebook.com/madskiesbart
