000
AXPZ20 KNHC 300914
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN JAN 30 2011

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.

...ITCZ...
AXIS IS ALONG 6N77W 3N95W 8N120W 7N140W. SCATTERED MODERATE 
CONVECTION WITHIN 60 NM EITHER SIDE OF AXIS FROM 115W-121W

...DISCUSSION...
UPPER LEVEL TROUGH OVER THE W PORTION OF THE DISCUSSION AREA 
WITH AXIS FROM 32N122W TO 27N133W 13N139W. A LARGE AREA DEEP 
LEVEL TROPICAL MOISTURE WITH BROKEN/OVERCAST MULTILAYERED CLOUDS 
IS SE OF THE TROUGH FROM 7N-20N W OF 120W. A BROAD UPPER LEVEL 
TROUGH IS SE OF THE TROUGH...OTHERWISE MOSTLY ZONAL ACROSS THE 
AREA N OF 15N. A 95-105 KT JET STREAM EXTENDS FROM 27N122W 
ACROSS CENTRAL BAJA CALIFORNIA INTO NORTHERN MEXICO.

IN THE DEEP TROPICS AN UPPER LEVEL CYCLONIC CIRCULATION IS 
CENTERED NEAR 7N98W. EXCEPT FOR A FEW SHOWERS NEAR THE CYCLONIC 
CIRCULATION MODERATE TO STRONG SUBSIDENCE WITH DRY STABLE AIR AT 
THE MIDDLE AND UPPER LEVELS IS NOTED S OF 10N E OF 110W. A 75-95 
KT JET OVER THE SW PORTION OF THE AREA IS S OF 8N W OF 120W.

A 1026 MB HIGH PRES IS CENTERED NEAR 30N133W WITH RIDGE N OF 15N 
W OF 105W. FLOW AROUND THE SOUTHERN PERIPHERY OF THE RIDGE IS 
PRODUCING 20-25 KT TRADES FROM 15N-21N W OF 123W. ELY WINDS 
20-25 KT THROUGH THE GULF PAPAGAYO WILL DECREASE TO LESS THAN 20 
BY MON EVENING.  

$$
DGS