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Date: Sat, 12 Feb 2005 15:15:35 -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 122115
TWDEP

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SAT FEB 12 2005

TROPICAL WEATHER DISCUSSION FOR EASTERN PACIFIC OCEAN FROM
EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...
AND METEOROLOGICAL ANALYSIS.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
2045 UTC.

..ITCZ...
INTERTROPICAL CONVERGENCE ZONE...AXIS 1N80W 7N98W 8N126W 7N140W.
SCATTERED MODERATE WITHIN 150 NM N OF AXIS BETWEEN 83W AND 93W
AND BETWEEN 111W AND 122W AND W OF 130W.

DISCUSSION...
MID TO UPPER RIDGE DOMINATES AREA N OF THE ITCZ W OF 125W. A
SHORTWAVE TROUGH HAS MEAN AXIS FROM 32N120W TO 10N115W.
6N102W.

A WESTERLY UPPER WIND MAXIMA IS NOTED ALONG 12N CONTINUING E
ACROSS THE WESTERN RIDGE TO NEAR 10N115W...WHERE THE UPPER FLOW
SPLITS. ONE BRANCH TURNS CYCLONICALLY NE ALONG THE EAST EDGE OF
THE UPPER TROUGH BECOMING DIFFLUENT AGAIN OVER NORTHERN OLD
MEXICO. THE OTHER BRANCH OF THE WESTERLY JET CONTINUES SE INTO
THE UPPER CYCLONE AT 6N102W.

THE STRONG UPPER DIFFLUENCE NEAR THE UPPER FLOW SPILT IS
ENHANCING ITCZ CONVECTION BETWEEN 111W AND 122W. UPPER
DIFFLUENCE E OF THE UPPER ANTICYCLONE IS RESPONSIBLE FOR THE
ITCZ CONVECTION BETWEEN 83W AND 93W.

STRONG UPPER DRY AIR/SUBSIDENCE IS OBSERVED N OF THE ITCZ W OF
110W AND S OF 23N E OF 110W.

$$
FT

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