000
AXPZ20 KNHC 050923
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED AUG 05 2009

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN
FROM THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...SPECIAL FEATURES...
HURRICANE FELICIA NEAR 13.4N 128.2W WITH MINIMUM OF 970 MB AT 
0900 UTC AUG 05 MOVING WNW OR 300 DEG AT 10 KT. MAXIMUM 
SUSTAINED WINDS ARE 90 KT WITH GUSTS TO 105 KT. NUMEROUS STRONG 
CONVECTION IS WITHIN 120 W AND 140 NM E SEMICIRCLE OF THE 
CENTER. A WELL DEFINED EYE HAS DEVELOPED WITH FELICIA. UPPER 
LEVEL DIFFLUENT FLOW IS OBSERVED AROUND THE SYSTEM AND 
STRENGTHENING IS FORECAST AND THE SYSTEM IS FORECAST TO FURTHER 
STRENGTHEN THROUGH LATE WEDNESDAY AND CONTINUE TO MOVE W TO WNW. 
SEE LATEST NHC  FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS 
MIATCMEP3/WTPZ23 KNHC FOR MORE DETAILS.

TROPICAL STORM ENRIQUE NEAR 16.8N 120.8W WITH MINIMUM PRES OF 
1000 MB AT 0900 UTC MOVING WNW OR 300 DEG AT 13 KT. MAXIMUM 
SUSTAINED WINDS ARE 45 KT WITH GUSTS 55 KT. LARGE AREA OF 
SCATTERED TO NUMEROUS MODERATE TO STRONG CONVECTION IS WITHIN 
150 NM S SEMICIRCLE AND 30 NM NE QUADRANT OF ENRIQUE. ENRIQUE
IS FORECAST TO WEAKEN TO A TROPICAL DEPRESSION TONIGHT AND
BECOME A REMNANT LOW FRI NIGHT. SEE LATEST NHC FORECAST/ADVISORY 
UNDER AWIPS/WMO HEADERS MIATCMEP2/WTPZ22 KNHC FOR MORE DETAILS.

...TROPICAL WAVES...
TROPICAL WAVE FROM 6N-17N ALONG 107W MOVING W 10-15 KT. ISOLATED 
SHOWERS ARE ALONG THE WAVE.

...ITCZ...
AXIS IS ALONG 8N78W 10N105W 13N115W 6N140W. SCATTERED STRONG 
CONVECTION WITHIN 150 NM S OF AXIS FROM 78W-80W. SCATTERED 
MODERATE TO STRONG CONVECTION WITHIN 9O NM S AND 120 NM N OF 
AXIS BETWEEN 80W-105W.

...DISCUSSION...
DEEP LAYER TROUGH EXTENDS FROM 32N131W TO 25N140W. AN UPPER 
LEVEL ANTICYCLONIC CIRCULATION IS SE OF THE TROUGH NEAR 22N121W. 
A 75-95 KT JETSTREAM IS E OF THE TROUGH AXIS FROM 29N128W TO 
BEYOND 32N126W. DIVERGENT FLOW ALOFT BETWEEN THE ANTICYCLONIC 
CIRCULATION AND AN UPPER LEVEL CYCLONIC CIRCULATION OVER THE FAR 
W PORTION OF THE DISCUSSION AREA CENTERED NEAR 14N139W IS 
ENHANCING CONVECTION OVER FELICIA.

ANOTHER UPPER LEVEL ANTICYCLONIC CIRCULATION OVER NORTHERN MEXICO
NEAR 27N106W. CLUSTERS OF TSTMS OVER NORTHERN MEXICO ARE SLOWLY 
DISSIPATING. A WEAK UPPER TROUGH IS ORIENTED NE TO SW FROM 
YUCATAN PENINSULA TO A CYCLONIC CIRCULATION OFF THE COAST OF 
MEXICO NEAR 15N105W. AN UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
NOTED S OF THE TROUGH OFF THE COAST COSTA RICA. DIFFLUENT FLOW 
ALOFT ASSOCIATED WITH THESE FEATURES IS AIDING CONVECTIVE GROWTH 
ALONG THE ITCZ AND ALONG THE COAST OF COSTA RICA AND PANAMA.

SURFACE RIDGE WITH AXIS FROM 32N134W TO 26N122W. BROKEN TO 
OVERCAST
STRATOCUMULUS CLOUDS COVER THE AREA N OF 20N W OF 120W. NE WINDS 
20 KT CONTINUE TO BLOW THROUGH GULF OF TEHUANTEPEC AND GULF OF
PAPAGAYO.

$$
DGS