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Eastern Pacific Tropical Weather Discussion



000
AXPZ20 KNHC 222038
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC FRI AUG 22 2014

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...SPECIAL FEATURES...                                           

RECENTLY UPGRADED HURRICANE KARINA IS CENTERED NEAR 15.5N  
135.2W AT 22/2100 UTC...ABOUT 1164 E OF HILO HAWAII...MOVING NE 
OR 050 DEG AT 5 KT. ESTIMATED MINIMUM CENTRAL PRESSURE 989 MB. 
MAXIMUM SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT. NUMEROUS 
MODERATE AND SCATTERED STRONG CONVECTION IS WITHIN 60 NM OF   
THE CENTER...EXCEPT 120 NM IN THE S QUADRANT. SEE LATEST NHC 
FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP1/WTPZ21   
KNHC FOR MORE DETAILS. 

TROPICAL STORM MARIE IS CENTERED NEAR 13.4N 103.5W AT 22/2100 
UTC...ABOUT 339 NM S OF MANZANILLO MEXICO...MOVING WNW OR 285 
DEG AT 12 KT. ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB. 
MAXIMUM SUSTAINED WINDS 50 KT WITH GUSTS TO 65 KT. NUMEROUS 
MODERATE AND SCATTERED STRONG CONVECTION IS WITHIN 240 NM IN  
THE SE AND 300 NM IN THE NW SEMICIRCLES. SCATTERED MODERATE AND 
ISOLATED STRONG CONVECTION IS N OF 12N BETWEEN 95W AND 100W... 
AND ALSO FROM 08N TO 12N BETWEEN 97W AND 100W. SEE LATEST NHC 
FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP3/WTPZ23   
KNHC FOR MORE DETAILS.

TROPICAL STORM LOWELL IS CENTERED NEAR 22.4N 124.7W AT 22/2100 
UTC...ABOUT 821 NM W OF THE SOUTHERN TIP OF THE BAJA CALIFORNIA 
PENINSULA...MOVING NW OR 310 DEG AT 8 KT. ESTIMATED MINIMUM 
CENTRAL PRESSURE 993 MB. MAXIMUM SUSTAINED WINDS 50 KT WITH 
GUSTS TO 60 KT. SCATTERED MODERATE AND ISOLATED STRONG 
CONVECTION IS WITHIN 150 NM IN THE SE SEMICIRCLE. SCATTERED 
MODERATE CONVECTION IS BETWEEN 120 AND 240 NM IN THE N QUADRANT. 
SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS 
MIATCMEP2/WTPZ22 KNHC FOR MORE DETAILS.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

THE MONSOON TROUGH AXIS EXTENDS FROM 07N77W TO 10N95W. NO    
ITCZ AXIS IS PRESENT E OF 140W. SCATTERED MODERATE AND ISOLATED 
STRONG CONVECTION IS WITHIN 210 NM S OF THE AXIS E OF 88W. 
SCATTERED MODERATE CONVECTION IS WITHIN 150 NM EITHER SIDE OF 
THE AXIS BETWEEN 90W AND 90W...WITHIN 150 NM SE OF A LINE FROM 
09N108W TO 06N119W...AND WITHIN 120 NM NW OF A LINE FROM 14N112W 
TO 06N117W.

...DISCUSSION...    

A 1030 MB HIGH IS CENTERED WELL NW OF THE DISCUSSION WATERS NEAR 
40N145W WITH A RIDGE EXTENDING SE TO THE SOUTHERN CALIFORNIA 
COAST NEAR ORANGE COUNTY. THIS RIDGE CONTINUES TO SUPPORT MAINLY 
MODERATE TO LOCALLY FRESH WINDS W OF 110W OUTSIDE OF THE 
INFLUENCES OF KARINA AND LOWELL. THE PRES GRADIENT HAS TIGHTENED 
OVER THE NW CORNER OF THE AREA AS LOWELL CONTINUES TO MOVE NW 
AGAINST THE RIDGE...WITH FRESH TO STRONG NE WINDS DEVELOPING AND 
SEAS BUILDING TO 10 FT IN THE FAR NW PORTION WELL AWAY FROM 
LOWELL.

$$
LEWITSKY



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Page last modified: Friday, 22-Aug-2014 20:38:23 UTC