000 AXNT20 KNHC 231107 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 805 AM EDT SUN MAR 23 2008 TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL AMERICA...THE GULF OF MEXICO...THE CARIBBEAN SEA...NORTHERN SECTIONS OF SOUTH AMERICA...AND THE ATLANTIC OCEAN TO THE AFRICAN COAST FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER OBSERVATIONS...AND RADAR. BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1015 UTC. ...THE ITCZ... FROM THE BORDER OF SIERRA LEONE AND LIBERIA NEAR 8N10W TO 3N20W 2N28W 3N43W...INTO NORTHEASTERN BRAZIL NEAR 1N53W. SCATTERED MODERATE TO STRONG SHOWERS AND THUNDERSTORMS ARE FROM 2N TO 6N BETWEEN 44W AND 51W. WIDELY SCATTERED MODERATE TO MODERATE SHOWERS/ISOLATED STRONG THUNDERSTORMS ELSEWHERE SOUTH OF 7N EAST OF 60W. ...DISCUSSION... THE GULF OF MEXICO... UPPER LEVEL WESTERLY WIND FLOW MOVES FROM MEXICO INTO THE NORTHWESTERN HALF OF THE GULF OF MEXICO. A SHORTWAVE TROUGH IS MOVING THROUGH THE NORTH CENTRAL GULF OF MEXICO. A WARM FRONT IS ALONG 27N/28N BETWEEN 67W AND A 1013 MB LOW PRESSURE CENTER NEAR 27N83W. A COLD FRONT EXTENDS FROM THE 27N83W LOW CENTER TO THE NORTHERN AND CENTRAL SECTIONS OF THE YUCATAN PENINSULA. ISOLATED MODERATE SHOWERS AND POSSIBLE THUNDERSTORMS ARE IN THE EAST CENTRAL GULF OF MEXICO WITHIN 90 NM ON EITHER SIDE OF 24N86W 27N80W...WIDENING TO BE WITHIN 180 NM ON EITHER SIDE OF 27N80W BEYOND 29N70W IN THE ATLANTIC OCEAN. THE CARIBBEAN SEA... BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE AREA. UPPER LEVEL CLOUDS ARE STREAMING FROM COLOMBIA AND VENEZUELA NORTHWARD AND THEN NORTHEASTWARD. PART OF THE BAND OF CLOUDS AND MOISTURE THAT HAS BEEN ACCOMPANYING THE SOUTHEASTERN GULF OF MEXICO COLD FRONT FOR THE LAST 2 TO 3 DAYS HAS PASSED THROUGH THE NORTHWESTERN CORNER OF THE AREA AND THEN WEAKENED WITH TIME. THE HIGHER LEVEL CLOUDS ARE PASSING ON TOP OF MIDDLE TO UPPER LEVEL DRY AIR/SUBSIDENCE. POSSIBLE SHOWERS ARE IN PATCHES OF LOW CLOUDS MOVING WESTWARD FROM THE ATLANTIC OCEAN...THAT ARE NORTH OF 14N60W 17N70W 16N80W 13N83W. THE ATLANTIC OCEAN... SHOWERS AND POSSIBLE THUNDERSTORMS ARE WITHIN 360 NM ON NORTH OF 24N80W 27N70W BEYOND 31N64W. BROAD MIDDLE TO UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE AREA WEST OF 40W....UNDER A DRY/SUBSIDENT ATMOSPHERE. A 1024 MB HIGH PRESSURE CENTER IS NEAR 30N53W. AN EASTERN ATLANTIC DEEP LAYER CYCLONIC CIRCULATION CENTER IS NEAR 30N27W. THIS CYCLONIC CENTER IS WHAT REMAINS OF THE DEEP LAYER TROUGH THAT HAD BEEN IN THE AREA FOR THE LAST 3 DAYS. THE CYCLONIC CENTER STILL SUPPORTS A COLD FRONT FROM A 1010 MB LOW PRESSURE CENTER NEAR 32N27W TO 30N22W 25N23W 19N31W. POSSIBLE SHOWERS FROM 28N TO 33N BETWEEN 20W AND 27W. THE FRONT IS MARKED BY LOW TO MIDDLE LEVEL CLOUDS WITHIN 60 NM TO 90 NM ON EITHER SIDE OF 18N30W 23N23W 26N20W 30N22W. $$ MT