000
AXPZ20 KNHC 260923
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED APR 26 2006

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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0845 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 8N77W 9N90W 8N110W 9N120W 4N140W. 
SCATTERED MODERATE CONVECTION NEAR THE COAST OF COLOMBIA FROM 
1N-7N E OF 81W. SCATTERED MODERATE WITHIN 300 NM S OF AXIS 
BETWEEN 84W-92W. NUMEROUS MODERATE/STRONG FROM 4N-10N BETWEEN 
108W-114W. SCATTERED MODERATE WITHIN 60 NM OF AXIS BETWEEN 
133W-137W.

...DISCUSSION...

W OF 100W...
A COMPACT MID/UPPER LOW IS CENTERED OVER THE COASTAL WATERS OF 
SOUTHERN CALIFORNIA NEAR 33N123W MOVING SSE 20 KT AND EXPECTED 
TO BE OVER NRN BAJA CALIFORNIA WITHIN THE NEXT 24 HRS. A TROUGH 
AXIS EXTENDS SW OF THE LOW ACROSS THE AREA TO 17N140W AND 
CONFLUENCE IS PRODUCING STRONG SUBSIDENCE FROM 14N-23N W OF 
127W. A WEAKENING SURFACE TROUGH IS MOVING SE FROM 30N121W 
24N130W WITH A SLIGHT INCREASE IN NLY WINDS. THE SUBTROPICAL JET 
IS ACTIVE ON THE SE SIDE OF THE UPPER TROUGH AND EXTENDS FROM 
6N140W TO 18N130W THEN TO 27N110W OVER NW MEXICO. UPPER LEVEL 
WIND SPEEDS ARE NEAR 100 KT IN THE JET CORE AND ABUNDANT CIRRUS 
IS SPREADING INLAND OVER MUCH OF MEXICO...EXCEPT THE MOST 
EXTREME NW PARTS. ALL OF THIS CLOUDINESS IS FUNNELING AROUND THE 
N SIDE OF AN UPPER LEVEL ANTICYCLONE CENTERED NEAR 12N108W. 
STRONG DIFFLUENCE ON THE SW SIDE OF THE ANTICYCLONE IS 
SUPPORTING A LARGE ITCZ CONVECTIVE CLUSTER FROM 4N-10N BETWEEN 
108W-114W MOVING WNW 15-20 KT.

E OF 100W...
THE SMALL MID/UPPER LOW WHICH WAS OVER THE ISTHMUS OF 
TEHUANTEPEC YESTERDAY HAS SHIFTED E OVER GUATEMALA TONIGHT WITH 
A TROUGH AXIS REACHING SW TO 7N95W. CONFLUENCE INTO THE TROUGH 
IS PRODUCING MODERATE/STRONG SUBSIDENCE N OF 6N BETWEEN 90W-100W 
WHILE DEEP TROPICAL MOISTURE IS BEING ADVECTED NEWD ACROSS THE 
REST OF CENTRAL AMERICA AHEAD OF THE TROUGH. ISOLATED 
SHOWERS/TSTMS ARE LOCATED ALONG A NOCTURNAL LAND BREEZE BOUNDARY 
WHICH HAS SET UP ABOUT 30-60 NM OFFSHORE FROM THE GULF OF 
FONSECA WWD TO 99W.

$$
BERG