425
FAGX20 KKCI 251030
OFAGX
SYNOPSIS VALID TIL 261100Z
FCST...251100Z-252300Z
OTLK...252300Z-261100Z
.
INTERNATIONAL OPERATIONS BRANCH
AVIATION WEATHER CENTER KANSAS CITY MISSOURI
.
CSTL WATERS FROM COASTLINE OUT TO HOUSTON OCEANIC FIR AND GLFMEX
MIAMI OCEANIC FIR AND W OF 85W. HOUSTON OCEANIC FIR AND MIAMI
OCEANIC FIR.
.
ALL WNDS SFC. TS IMPLY SEV OR GTR TURB SEV ICE LLWS AND IFR
CONDS.
.
01 SYNOPSIS...SEE LATEST NHC ADVISORY FOR HELENE...
HIPRES RDG REMAINS OVR THE NRN TX-FL CSTL WTRS EXTDG SEWD INTO
THE NRN GLFMEX HOUSTON FIR. BY 25/16Z AN UPPER LEVEL DISTURBANCE
MOVS THRU ERN TX RESULTING IN ISOL SHRA WITH CNVTV FM BRO TO PSX
COMBINED WITH ONSHORE FLOW WL PRODUCE OCNL MVFR CIGS DURING THE
MORNING TIMEFRAME TODAY. WHILE AN INTENSIFYING TROPICAL STORM
HELENE WAS LOCATED AT 25/09Z NR 20.4N 86.1W AND FCST TO TRACK NWD
INTO THE FAR SE PTNS OF THE GLFMEX HOUSTON AND SRN MIAMI FIRS BY
EARLY THURSDAY MORNING TIMEFRAME. TC HELENE IS FCST TO BE A
HURRICANE BY THE TIME IT CROSSES INTO THE SE GLFMEX HOUSTON FIR.
BY 25/18Z TC HELENE WL BE NR 21.9N 86.5W ACCOMPANIED BY MAX WNDS
TO 70KTS WITH GUSTS TO 85KTS. THIS SYSTEM WL CONTINUE TO
INTENSIFY HEADING INTO THURSDAY MIDDAY. ITS IMPERATIVE TO CONT TO
MONITOR THE LATEST NHC ADVISORIES.
.
02 SIGNIFICANT CLD/WX...
.
CSTL WTRS...
...SEE LATEST NHC ADVISORY FOR HELENE...
BRO-PSX...SCT020 SCT050. OCNL BKN020 TOPS 150. ISOL SHRA/TSRA. CB
  TOPS FL420. BECMG 1415 SCT020. ISOL SHRA. OTLK...VFR SHRA TSRA
  TIL 02Z.
PSX-GPT...SCT020-SKC. ISOL SHRA. OTLK...VFR.
GPT-AAF...SCT025 SCT050. OCNL BKN020 TOPS FL180. ISOL SHRA/TSRA
  AFT 18Z. CB TOPS FL450. OTLK...MVFR CIG SHRA.
.
HOUSTON OCEANIC FIR...GLFMEX MIAMI OCEANIC FIR...
...SEE LATEST NHC ADVISORY FOR HELENE...
SE OF 27N87W-24N90W LN...SCT020 BKN050. OCNL BKN020 LYRD TOPS ABV
  FL240. WDLY SCT SHRA/ISOL TSRA. OCNL WND E 20KT. OTLK...VFR
  OCNL MVFR CIG SHRA TSRA WND.
ELSW...SCT020. ISOL SHRA. OTLK...VFR SHRA TSRA AFT 18Z.
.
03 ICE AND FRZLVL...
CSTL WTRS...SEE AIRMETS ZULU WAUS42 KKCI AND WAUS44 KKCI.
HOUSTON OCEANIC FIR...NO SGFNT ICE EXP OUTSIDE CNVTV ACT.
GLFMEX MIAMI OCEANIC FIR...NO SGFNT ICE EXP OUTSIDE CNVTV ACT.
FRZLVL...160-170.
.
04 TURB...
CSTL WTRS...SEE AIRMETS TANGO WAUS42 KKCI AND WAUS44 KKCI.
HOUSTON OCEANIC FIR...NO SGFNT TURB EXP OUTSIDE CNVTV ACT.
GLFMEX MIAMI OCEANIC FIR...NO SGFNT TURB EXP OUTSIDE CNVTV ACT.
....