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About Surface Analysis Charts

Surface analysis are produced manually every 6 hours and depict the locations of synoptic scale high and low pressure centers with associated surface fronts and troughs for the specific analysis time. Central pressure is depicted with 3 or 4 digits. Arrows point to the 24 hour forecast positions. The term "developing" gale or storm means gale or storm conditions are expected by 24 hours.

The pressure analysis has a 4 millibar (mb) contour interval. Forecast pressure values are written with 2 digits omitting the preceding 10 or 9. As an example a high pressure center with a central pressure of 1032 mb would be 32 and low pressure of 974 mb would be 74. For intense low pressure centers below 1000 mb, the analyst may use a dashed line to depict the 1000 mb isobar. By convention, isobars less than the 1000 mb dashed line are defined with an 8 mb contour interval.

 

UK Shipping Forecast downloaded from the NOAA server downloaded 03/07/2009 20:58
361
FPUK71 EGRR 040300
AND NOW THE SHIPPING FORECAST ISSUED BY THE MET OFFICE ON BEHALF OF
THE MARITIME AND COASTGUARD AGENCY AT 0505 ON SATURDAY 04 JULY 2009

THE GENERAL SYNOPSIS AT 0100
ATLANTIC LOW MOVING SLOWLY EAST EXPECTED 60 MILES WEST OF ROCKALL
996 BY 0100 TOMORROW ATLANTIC LOW MOVING STEADILY EAST EXPECTED
SOUTH FITZROY 1015 BY SAME TIME

THE AREA FORECASTS FOR THE NEXT 24 HOURS

VIKING
NORTHEASTERLY BECOMING VARIABLE 3 OR 4 OCCASIONALLY 5 IN NORTH AT
FIRST SLIGHT OCCASIONALLY MODERATE IN NORTH FOG PATCHES GOOD
OCCASIONALLY VERY POOR

NORTH UTSIRE
VARIABLE 3 OR 4 SMOOTH OR SLIGHT FOG PATCHES GOOD OCCASIONALLY
VERY POOR

SOUTH UTSIRE
VARIABLE 3 BECOMING NORTHWEST 4 OR 5 OCCASIONALLY 6 LATER SMOOTH OR
SLIGHT INCREASING SLIGHT OR MODERATE LATER FOG PATCHES AT FIRST
GOOD OCCASIONALLY VERY POOR AT FIRST

FORTIES
VARIABLE BECOMING MAINLY SOUTHWESTERLY LATER 3 OR 4 SMOOTH OR
SLIGHT FOG PATCHES GOOD OCCASIONALLY VERY POOR

CROMARTY FORTH TYNE
VARIABLE OR SOUTHWESTERLY 3 OR 4 OCCASIONALLY 5 IN CROMARTY SMOOTH
OR SLIGHT SHOWERS MODERATE OR GOOD

DOGGER
WESTERLY 4 OR 5 BECOMING VARIABLE 3 OR 4 SLIGHT OR MODERATE MAINLY
FAIR MODERATE OR GOOD OCCASIONALLY POOR

FISHER
VARIABLE 3 OR 4 BECOMING WESTERLY 4 OR 5 OCCASIONALLY 6 IN NORTHEAST
LATER SLIGHT OR MODERATE FOG PATCHES AT FIRST GOOD OCCASIONALLY
VERY POOR AT FIRST

GERMAN BIGHT
WESTERLY 4 OR 5 DECREASING 3 OR 4 LATER SLIGHT OR MODERATE FOG
PATCHES GOOD OCCASIONALLY VERY POOR

HUMBER
WESTERLY 4 OR 5 BACKING SOUTHERLY 3 OR 4 SLIGHT OR MODERATE MAINLY
FAIR MODERATE OR GOOD

THAMES DOVER WIGHT
VARIABLE 3 OR 4 SLIGHT OR MODERATE MAINLY FAIR MODERATE OR GOOD

PORTLAND PLYMOUTH
SOUTH OR SOUTHEAST VEERING SOUTHWEST 3 OR 4 INCREASING 5 OR 6 IN
WEST PLYMOUTH SLIGHT OR MODERATE SHOWERS GOOD

BISCAY
MAINLY WEST OR SOUTHWEST 4 OR 5 SLIGHT OR MODERATE SHOWERS
MODERATE OR GOOD

SOUTHEAST FITZROY
MAINLY SOUTHWESTERLY BECOMING CYCLONIC IN FAR SOUTH 4 OR 5 SLIGHT
OR MODERATE RAIN OR SHOWERS MODERATE OR GOOD

NORTHWEST FITZROY SOLE LUNDY FASTNET IRISH SEA SHANNON
SOUTH OR SOUTHWEST 4 OR 5 INCREASING 6 AT TIMES OCCASIONALLY 7 IN
NORTHWEST FITZROY AND SOLE LATER MODERATE OR ROUGH BUT SLIGHT OR
MODERATE IN LUNDY AND IRISH SEA SHOWERS SOME THUNDERY MODERATE OR
GOOD

ROCKALL MALIN
SOUTH OR SOUTHEAST 4 OR 5 INCREASING 6 AT TIMES SLIGHT OR MODERATE
SHOWERS SOME THUNDERY MODERATE OR GOOD

HEBRIDES BAILEY
MAINLY EAST OR SOUTHEAST 3 OR 4 INCREASING 5 AT TIMES SLIGHT OR
MODERATE SHOWERS MODERATE OR GOOD

FAIR ISLE FAEROES SOUTHEAST ICELAND
EASTERLY 4 OR 5 INCREASING 6 OR 7 IN SOUTHEAST ICELAND SLIGHT OR
MODERATE INCREASING ROUGH IN SOUTHEAST ICELAND SHOWERS FOG
PATCHES MODERATE OCCASIONALLY VERY POOR
Current North Atlantic Chart from The Ocean Prediction Centre
File last downloaded 04/07/2009 04:28

48 hour North Atlantic Chart from The Ocean Prediction Centre
File last downloaded 04/07/2009 04:28

96 hour North Atlantic Chart from The Ocean Prediction Centre
File last downloaded 04/07/2009 04:28