Tropical Weather Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
AXPZ20 KNHC 281517
TWDEP

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC FRI AUG 28 2015

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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1500 UTC.

...SPECIAL FEATURES...

HURRICANE JIMENA CENTERED NEAR 12.4N 122.0W AT 28/1500 UTC
MOVING W OR 270 DEG AT 10 KT. ESTIMATED MINIMUM CENTRAL PRESSURE
IS 979 MB. MAXIMUM SUSTAINED WINDS ARE 80 KT WITH GUSTS TO 95
KT. NUMEROUS MODERATE TO STRONG CONVECTION WAS NOTED WITHIN 90
NM OF CENTER. SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS
NOTED ELSEWHERE FROM 06N TO 15N BETWEEN 117W AND 127W. MODEL
GUIDANCE SHOWS JIMENA BECOMING A LARGE INTENSE TROPICAL CYCLONE
DURING THE NEXT 2-3 DAYS...WITH AN UNUSUALLY LARGE AREA OF SEAS
GREATER THAN 12 FT EXPECTED TO DEVELOP AS IT APPROACHES 130W-
135W. REFER TO THE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO
HEADERS MIATCMEP3/WTPZ23 KNHC FOR MORE DETAILS.

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

THE MONSOON TROUGH EXTENDS FROM 09N84W TO 08N88W TO 10N100W TO
10N105W. SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS
NOTED FROM 06N TO 16N BETWEEN 96W AND 102W.

...DISCUSSION...

HURRICANE IGNACIO CONTINUES TO MOVE AWAY FROM THE AREA. STRONG
WINDS ASSOCIATED WITHE IGNACIO HAS SHIFTED W OF THE AREA. THERE
REMAINS AN AREA OF LINGERING 8-9 FT SEAS FROM 11N TO 18N W OF
136W. THESE SEAS WILL SUBSIDE BELOW 8 FT LATER TONIGHT.

WEAK HIGH PRESSURE CENTERED OVER THE NORTHERN WATERS NEAR
29N128W EXTENDS A RIDGE SE TO NEAR 20N113W. OUTSIDE OF HURRICANE
JIMENA...A LARGE AREA OF GENTLE TO MODERATE TRADE WINDS PREVAIL
BETWEEN 17N-30N.

GULF OF TEHUANTEPEC...WINDS WILL PULSE OVER THE GULF OF
TEHUANTEPEC OVER THE NEXT COUPLE OF DAYS. WINDS WILL PEAK AT 20
TO 25 KT DURING THE OVERNIGHT AND EARLY MORNING HOURS WITH SEAS
BUILDING TO NEAR 9 FT BY THE MORNING HOURS. WINDS WILL DIMINISH
TO 15 TO 20 KT DURING THE AFTERNOON AND EARLY EVENING HOURS WITH
SEAS SUBSIDING BELOW 8 FT.

$$
AL


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.