

by ims1.ust.hk (iPlanet Messaging Server 5.2 Patch 1 (built Aug 19 2002))
with ESMTPS id <[email-masked]> for alau@ims-ms-daemon
(ORCPT [email-masked]); Thu, 17 Feb 2005 23:33:31 +0800 (CST)
Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113])
by mx2.ust.hk (8.12.11/8.12.11) with ESMTP id j1HFXREW009697	for
<[email-masked]>; Thu, 17 Feb 2005 23:33:28 +0800 (HKT)
Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113])
by vacuum.cso.uiuc.edu (8.12.11/8.12.11) with ESMTP id j1HFRegH057026; Thu,
17 Feb 2005 09:28:12 -0600
Received: by LISTSERV.UIUC.EDU (LISTSERV-TCP/IP release 14.3)
with spool id          377834 for [email-masked]; Thu,
17 Feb 2005 09:28:10 -0600
Received: from delyte.lib.siu.edu (delyte.lib.siu.edu [131.230.73.222])
by          vacuum.cso.uiuc.edu (8.12.11/8.12.11) with ESMTP id j1HFS8WA046858
for <[email-masked]>; Thu, 17 Feb 2005 09:28:08 -0600
Received: from delyte.lib.siu.edu (localhost [127.0.0.1])
by delyte.lib.siu.edu          (8.13.3/8.12.11) with ESMTP id j1HFRt9v000772
for          <[email-masked]>; Thu,
17 Feb 2005 09:27:55 -0600 (CST)
Received: (from ldm@localhost) by delyte.lib.siu.edu (8.13.3/8.12.11/Submit)
id          j1HFRtrN000771 for [email-masked]; Thu,
17 Feb 2005 09:27:55 -0600 (CST)
Date: Thu, 17 Feb 2005 09:27:55 -0600
From: SIU Weather Processor <[email-masked]>
Subject: Pacific-EN: Tropical Weather Discussion
Sender: WX-TROPL Tropical Storm and Hurricane WX products
<[email-masked]>
To: [email-masked]
Reply-to: [email-masked]
Message-id: <[email-masked]>
Precedence: list
X-LibAffairs-MailScanner: Found to be clean
X-MailScanner-From: [email-masked]
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 171527
TWDEP

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU FEB 17 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...
ITCZ AXIS ALONG 7N78W 8N90W 1N110W 4N140W. NO SIGNIFICANT
CONVECTION.

DISCUSSION...
BROAD MID/UPPER LEVEL TROUGH OVER THE NW PORTION OF THE AREA N
OF AROUND 15N W OF 120W WITH MEAN AXIS FROM 32N129W TO 25N130W
SSW TO 15N137W. THIS TROUGH IS ASSOCIATED WITH A NEARLY
STATIONARY LOW PRES...BOTH AT THE SURFACE AND ALOFT...N OF THE
AREA NEAR 34N131W. A COUPLE OF SURFACE TROUGHS ASSOCIATED WITH
THE UPPER LEVEL FEATURE...ONE FROM 30N121W 25N122W 19N128W AND A
SECOND SURFACE TROUGH EXTENDS FROM 32N127W 26N127W 23N132W.
UPPER LEVEL DISTURBANCES ROTATING AROUND THE UPPER TROUGH IS
CREATING ENOUGH INSTABILITY TO PRODUCE WIDELY SHOWERS N OF 27N
WITHIN 100 NM W OF SECOND TROUGH. SATELLITE DERIVED WINDS
INDICATE A 95-105 KT JET STREAM FROM 24N122W NE INTO SOUTHERN
CALIFORNIA. STRONG MID/UPPER SW WINDS E OF THE TROUGH CONTINUES
TO ADVECT PLENTIFUL TROPICAL MOISTURE NE ACROSS NORTHERN MEXICO
AND THE SW UNITED STATES. MODERATE TO STRONG SUBSIDENCE S OF 28N
W OF 123W.

MID/UPPER LEVEL RIDGING DOMINATES THE REMAINDER OF THE AREA
EXCEPT FOR AND EMBEDDED UPPER LEVEL CYCLONIC CIRCULATION NEAR
8N96W. RATHER DRY CONDITIONS AND VERY LIMITED SHOWER ACTIVITY
...EXCEPT FOR WIDELY ISOLATED WEAKENING SHOWERS ALONG THE ITCZ
BETWEEN 83W AND 95W...AND ALSO THE AREA OF MID/UPPER LEVEL
MOISTURE WITHIN ABOUT 500 NM SE OF JET STREAM. WIDELY SCATTERED
SHOWERS CONTINUE ALONG THE COSTA RICAN COAST. ELSEWHERE
SCATTERED TO BROKEN LOW CLOUDS WITH POSSIBLE ISOLATED LIGHT
SHOWERS S OF 14N E OF 110W...OTHERWISE SKIES ARE MOSTLY CLEAR
E OF 110W.

$$
DGS

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
To unsubscribe from WX-TROPL send e-mail to [email-masked] with
"unsub wx-tropl" in the body of your message. For help with WX-TROPL
write to [email-masked] or see http://wxlist.5280tech.com. For more
information on tropical weather products, see the NHC Homepage
at http://www.nhc.noaa.gov.