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Date: Tue, 04 Jan 2005 03:33:44 -0600
From: SIU Weather Processor <[email-masked]>
Subject: Pacific-EN: Tropical Weather Discussion
Sender: WX-TROPL Tropical Storm and Hurricane WX products
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X-Perlmx-Spam: Gauge=XXXIIIIIIII, Probability=38%,
Report='HASHBUSTER_BLOCK_V2 3.4, LINES_OF_YELLING_3 0.671,
__HASHBUSTER_BLOCK_V2_1 0, __HAS_MSGID 0, __LINES_OF_YELLING 0, __SANE_MSGID 0'

AXPZ20 KNHC 040933
TWDEP

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE JAN 04 2005

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
0900 UTC.

..ITCZ...

INTERTROPICAL CONVERGENCE ZONE AXIS 3N77W 7N110W 8N140W.
SCATTERED MODERATE WITHIN 45 NM OF 2.8N80.2W.
SCATTERED MODERATE WITHIN 60 NM EITHER SIDE OF AXIS W OF 127W.

..DISCUSSION...

N OF 18N...
WELL-DEFINED MIDDLE/UPPER LEVEL TROUGH COVERS THE AREA N OF 18N
E OF 130W WITH ITS AXIS ALONG 120W. DRY AIR ALOFT IS LOCATED
8-10 DEGREES EITHER SIDE OF THE TROUGH AXIS. FURTHER
UPSTREAM...OVER THE NW PART OF THE DISCUSSION AREA...FLOW IS
WEST TO NORTHWESTERLY AHEAD OF A RIDGE AXIS LOCATED ALONG 143W.
A STRONG JET WRAPS CYCLONICALLY AROUND THE TROUGH EXTENDING
THROUGH 32N130W TO 25N120W NE THROUGH CENTRAL BAJA CALIFORNIA.
SATELLITE DERIVED WINDS ARE UP TO 100 KT ALONG THE JET AXIS.
SOUTHWESTERLY FLOW ALOFT COVERS MOST OF MEXICO N OF 20N. AT THE
SURFACE A COLD FRONT EXTENDS THROUGH 32N113W TO 25N11W TO
20N115W TO 16N122W. POST FRONTAL TROUGH IS LOCATED THROUGH
32N118W TO 23N122W TO 23N130W. NW WIND TO 30 KNOTS ARE LOCATED W
OF THE TROUGH.

S OF 18N...
LIGHT WINDS...MAINLY WESTERLY...COVER THE DEEP TROPICS. GULF OF
TEHUANTEPEC WINDS ARE N TO NE 20 TO 25 KT AND OVER THE GULF OF
PAPAGAYO WINDS ARE NE 20 TO 30 KT.

$$
LL

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