| HOME | ARCHIVES | FORECASTS | IMAGERY | ABOUT NHC | RECONNAISSANCE |

Eastern Pacific Tropical Weather Discussion (Text)



000
AXPZ20 KNHC 272155
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC WED AUG 27 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 
2130 UTC.

...SPECIAL FEATURES...                                           

RECENTLY DOWNGRADED TROPICAL STORM MARIE WAS NEAR 23.1N 125.0W 
989 MB AT 2100 UTC AUG 27 MOVING WNW OR 300 DEG AT 13 KT. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. CONVECTION CONTINUES 
TO WEAKEN AND SCATTERED MODERATE TO STRONG CONVECTION IS NOW 
LIMITED TO WITHIN 180 NM ACROSS THE SE SEMICIRCLE. SEAS ARE 
ESTIMATED TO BE AS HIGH AS 29 FT WITHIN 75 NM IN THE NE QUADRANT 
OF MARIE. MARIE IS EXPECTED TO CONTINUE MOVING NW OVER THE NEXT 
FEW DAYS...AND OVER GRADUALLY COOLER SST'S AND INTO MUCH MORE 
STABLE AIR. THIS WILL MAINTAIN THE CURRENT WEAKENING TREND...AND 
MARIE IS EXPECTED TO BECOME A POST TROPICAL STORM BY LATE THU. 
LARGE AND POWERFUL SWELL GENERATED DURING THE PAST FEW DAYS WILL 
CONTINUE TO PROPAGATE ACROSS MUCH OF THE AREA WATERS...AND 
IMPACT PORTIONS OF SW MEXICO W OF 100W SPREADING NORTHWARD ALONG 
THE COAST INCLUDING THE SOUTHERN PORTION OF THE BAJA CALIFORNIA 
PENINSULA AND INTO THE SOUTHERN GULF OF CALIFORNIA. THE STRONG 
SWELL FROM MARIE WILL CONTINUE TO AFFECT THE SOUTHERN CALIFORNIA 
COASTAL WATERS WITH LARGE AND DANGEROUS SURF...MINOR COASTAL 
FLOODING...AND BEACH EROSION THROUGH THU. SEE LATEST NHC 
FORECAST/ ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP3/WTPZ23 KNHC 
FOR MORE DETAILS ON MARIE...AND THE LOCAL SOUTHERN CALIFORNIA 
FORECAST OFFICES FOR MORE ON IMPACTS FROM SWELLS ASSOCIATED WITH 
MARIE.

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

THE MONSOON TROUGH EXTENDS FROM 09.5N72W TO 11N96W TO 10N111W... 
WHERE IT REMAINS FRACTURED SE OF MARIE. TROUGH RESUMES S OF 
MARIE FROM LOW PRES NEAR 15N124W TO 12N128W TO BEYOND 10.5N140W. 
SCATTERED MODERATE TO STRONG CONVECTION WAS NOTED FROM 05.5N TO 
12.5N BETWEEN 80W AND 108W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION WAS NOTED WITHIN 240 NM S OF TROUGH BETWEEN 124W AND 
133W. 

...DISCUSSION...    

THE REMNANT LOW OF LOWELL IS CENTERED NEAR 29N139W WITH MINIMUM 
PRESSURE OF 1010 MB. LOWELL IS STILL PRODUCING AN AREA OF FRESH 
TO STRONG WINDS OVER THE FORECAST WATERS WITHIN 180 NM NE 
QUADRANT WITH SEAS 9 TO 10 FT. THERE IS NO SIGNIFICANT 
CONVECTION ASSOCIATED WITH LOWELL. LOWELL WILL CONTINUE TO 
WEAKEN WHILE MOVING WESTWARD AND MOVE W OF THE AREA THU.

THE REMNANT LOW OF KARINA WAS SEEN IN SATELLITE PHOTOS THIS 
AFTERNOON NEAR 15N124W WITH A MINIMUM PRESSURE OF 1006 MB. THERE 
IS A LIMITED AND DECREASING AMOUNT OF CONVECTION WITHIN 15 NM SW 
OF KARINA. THE REMNANT LOW WILL CONTINUE TO MOVE NE AND 
GRADUALLY DISSIPATE TONIGHT INTO THU AS THE CIRCULATION BECOMES 
ABSORBED INTO THE LARGE CIRCULATION AROUND MARIE. 

MIXED SWELLS IN EXCESS OF 8 FT WILL CONTINUE TO IMPACT THE 
MAJORITY OF THE WATERS W OF 110W THROUGH THE NEXT 48 HOURS AS A 
RESULT OF SWELL PROPAGATING AWAY FROM MARIE INTERACTING WITH 
SWELL THAT HAD BEEN GENERATED BY LOWELL AND KARINA. 
MEANWHILE...THE WATERS E OF 100W WILL BE COMPARATIVELY MORE 
TRANQUIL WITH GENTLE TO MODERATE WINDS AND 4 TO 6 FT SEAS 
EXPECTED.

$$
STRIPLING


Standard version of this page

Alternate Formats
About Alternates - E-Mail Advisories - RSS Feeds

Cyclone Forecasts
Latest Advisory - Past Advisories - About Advisories

Marine Forecasts
Latest Products - About Marine Products

Tools & Data
Satellite Imagery - US Weather Radar - Aircraft Recon - Local Data Archive - Forecast Verification - Deadliest/Costliest/Most Intense

Learn About Hurricanes
Storm Names Wind Scale - Prepare - Climatology - NHC Glossary - NHC Acronyms - Frequently Asked Questions - AOML Hurricane-Research Division

About Us
About NHC - Mission/Vision - Other NCEP Centers - NHC Staff - Visitor Information - NHC Library

Contact Us


NOAA/ National Weather Service
National Centers for Environmental Prediction
National Hurricane Center
11691 SW 17th Street
Miami, Florida, 33165-2149 USA
nhcwebmaster@noaa.gov
Disclaimer
Privacy Policy
Credits
About Us
Glossary
Career Opportunities
Page last modified: Wednesday, 27-Aug-2014 21:55:23 UTC