SURFACE ANALYSIS FOR THE ATLANTIC OCEAN FROM 1800 Z 7 DEC 2014 THE ANALYSIS SHOWS --------TWO North Atlantic (non tropical) Low Pressure Storm--------- One North Atlantic Low Pressure System That Is Located At 51.00 N 58.00 W One North Atlantic Low Pressure System That Is Located At 38.00 N 70.00 W --------------------------TWO Tropical Low Pressure System--------------- One Tropical Low Pressure System that is located at 33.00 N 59.00 W One Tropical Low Pressure System that is located at 27.00 N 59.00 W ----------------------------THREE Tropical Waves-------------------------- One Tropical wave that is located at 31.00 N 76.00 W to 28.00 N 79.00 W One Tropical wave that is located at 26.00 N 74.00 W to 23.00 N 76.00 W One Tropical wave that is located at 35.00 N 58.00 W to 16.00 N 62.00 W --------------------------------ATLANTIC OCEAN-------------------------- AN UPPER TROUGH MOVING OVER THE W ATLANTIC SUPPORTS A COLD FRONT THAT EXTENDS FROM 31N78W TO N FL NEAR 29N82W. ISOLATED SHOWERS ARE WITHIN 50 NM OF THE FRONT. NORTHERLY WINDS OF 15 TO 20 KT ARE N OF THE FRONT. A PRE-FRONTAL SURFACE TROUGH JUST AHEAD OF THE FRONT EXTENDS FROM 31N75W TO 29N79W. SCATTERED SHOWERS ARE WITHIN 30 NM OF THIS TROUGH. ANOTHER SURFACE TROUGH EXTENDS FROM 26N75W TO 21N75W INCLUDING THE CENTRAL BAHAMAS. SCATTERED SHOWERS ARE WITHIN 50 NM OF THE TROUGH AXIS. THE AXIS OF THE UPPER TROUGH OVER THE W ATLANTIC EXTENDS SE OVER THE CENTRAL ATLANTIC. THIS SUPPORTS A BROAD 1004 MB SURFACE LOW NEAR 26N59W. A SURFACE TROUGH EXTENDS FROM ANOTHER LOW NEAR 34N59W SOUTH THROUGH THE 1004 MB LOW TO 21N59W TO THE LEEWARD ISLANDS...AND OVER THE E CARIBBEAN. CONVECTION ASSOCIATED WITH THESE FEATURES IS DISPLACED E OF THE SURFACE FEATURES...SUPPORTED BY LIFT ASSOCIATED WITH THE E SIDE OF THE UPPER TROUGH. STRONG WINDS BETWEEN THE SURFACE LOW AND HIGH PRESSURE NEAR THE AZORES IS PRODUCING GALE FORCE WINDS IN THE CENTRAL ATLANTIC. . SCATTERED MODERATE CONVECTION IS FROM 14N TO 31N BETWEEN 47W AND 59W. AN UPPER LOW IS CENTERED OVER THE E ATLANTIC NEAR 25N30W WITH AN UPPER TROUGH EXTENDING SOUTHWARD ALONG 30W TO 15N. ISOLATED MODERATE CONVECTION IS FROM 21N AND 28N BETWEEN 24W AND 31W. OVER THE NEXT 24 HOURS THE COLD FRONT WILL CONTINUE IN THE W ATLANTIC WITH SHOWERS. THE SURFACE LOW WILL LIFT NE TOWARD 35N55W WITH CONVECTION CONTINUING S OF 31 ALONG A TROUGH EXTENDING S OF THE SURFACE LOW.
Posted on: Sun, 07 Dec 2014 23:36:07 +0000
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