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Date: Fri, 14 Jan 2005 03:12:47 -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 140912
TWDEP

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC FRI JAN 14 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
0845 UTC.

..ITCZ...
INTERTROPICAL CONVERGENCE ZONE AXIS IS ALONG 5N77W 4N88W 7N102W
4N114W 5N140W. ISOLATED MODERATE CONVECTION NEAR 5N84W AND
6N86W. CLUSTER OF MODERATE CONVECTION NEAR 8N102W.

..DISCUSSION...

W OF 110W...
LARGE MID/UPPER LEVEL LOW LOCATED WELL NW OF THE AREA WITH A
SWLY FLOW OF 40-60 KT OVER THE NW PORTION OF THE DISCUSSION
AREA. THE REMAINDER OF THE AREA W OF 110W IS DOMINATED BY A
LARGE MID/UPPER LEVEL RIDGE. THE RIDGE IS ANCHORED BY A
MID/UPPER ANTICYCLONIC CIRCULATION CENTERED NEAR 10N125W. THE
RIDGE AXIS EXTENDS N ALONG 21N120W TO BEYOND 32N119W. THE RIDGE
EXTENDS N INTO SOUTHERN CALIFORNIA. HIGH LEVEL MOISTURE IS
MOVING OVER TOP THE RIDGE INTO WESTERN MEXICO AND THE SOUTHWEST
UNITED STATES. THE RIDGE IS FORECAST TO BECOME A LITTLE LESS
AMPLIFIED AS IT SLIDES SLOWLY EAST DURING THE NEXT 24 HOURS.

E OF 110W...
A SHARP MID/UPPER LEVEL TROUGH OVER THE CENTRAL U.S. EXTENDS
SOUTH INTO THE WESTERN GULF OF MEXICO. A BROAD SOUTHERN PORTION
OF THE TROUGH EXTENDS ACROSS THE EASTERN PACIFIC WITH AXIS FROM
NEAR THE GULF OF TEHUANTEPEC SW TO 5N107W. DRY AIR FROM STRONG
SUBSIDENCE E OF 110W IS KEEPING THE AREA RELATIVELY
PRECIPITATION FREE.

COLD FRONT OVER THE GULF OF MEXICO AND ASSOCIATED SURFACE
HIGH BUILDING SOUTH BEHIND THE FRONT IS EXPECTED TO PRODUCE GALE
FORCE WINDS OVER THE GULF OF TEHUANTEPEC LATER THIS MORNING.
GALE CONDITIONS ARE EXPECTED TO CONTINUE FOR THE NEXT THREE
DAYS. WINDS ARE FORECAST TO INCREASE TO 20 TO 25 KT OVER THE
GULF OF PAPAGAYO REGION LATER TODAY.

$$
RRG

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