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Date: Mon, 31 Jan 2005 09:21:59 -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 311521
TWDEP

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC MON JAN 31 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1500 UTC.

..ITCZ...
INTERTROPICAL CONVERGENCE ZONE...5N77W 6N105W 9N115W 8N130W
7N140W.
SCATTERED MODERATE CONVECTION IS FOUND FROM 7N TO 11N FROM 111W
TO 118W.  WIDELY SCATTERED MODERATE CONVECTION IS OBSERVED
WITHIN 75 NM EITHER SIDE OF AXIS FROM 128W TO 135W.  SCATTERED
MODERATE CONVECTION IS ALSO WITHIN 75 NM EITHER SIDE OF THE ITCZ
AXIS W OF 135W.

..DISCUSSION...
W OF 100W...
DEEP LAYER POSITIVELY TILTED LONGWAVE TROUGH WITH AXIS FROM THE
SW U.S. THROUGH 30N108W TO 20N120W.  A SMALL CYCLONIC
CIRCULATION IS LOCATED WEST OF THE BASE OF THE TROUGH NEAR
25N139W.  UPPER LEVEL DRY AIR WITH IMPLIED SUBSIDENCE IS
OBSERVED NORTH OF THE TROUGH AXIS EAST OF 134W. JET STREAM ON E
SIDE OF TROUGH ADVECTING MIDDLE TO UPPER LEVEL TROPICAL MOISTURE
NE ACROSS S BAJA CALIFORNIA AND THE REMAINDER OF MEXICO SE OF
TROUGH AXIS TO 97W.  JET STREAM WINDS ARE UP TO 90 TO 110 KT. AT
THE SURFACE BROAD RIDGE WITH A HIGH CENTER WELL NORTH OF THE
AREA DOMINATES THE FLOW.  CLEAR SKIES ARE FOUND NORTH OF 25N E
OF 120W.  ELSEWHERE BROKEN TO OCCASIONALLY SCATTERED
STRATOCUMULUS ARE NORTH OF 15N.

E OF 100W...
UPPER LEVEL RIDGE WITH VERY STRONG SUBSIDENCE COVERED VIRTUALLY
ENTIRE AREA E OF 100W.  NORTH OF THE ITCZ SCATTERED LOW CLOUDS
ARE OBSERVED AND BROKEN TO OVERCAST LOW CLOUDS ARE SOUTH OF THE
ITCZ.

$$
LL

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