From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Dec 27 14:18:58 2010 Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113]) by cozumel.ust.hk (8.13.8/8.13.8) with ESMTP id oBR6IvIs006433 for ; Mon, 27 Dec 2010 14:18:57 +0800 Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBQE07uO000589; Mon, 27 Dec 2010 00:18:18 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4888724 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Mon, 27 Dec 2010 00:18:17 -0600 Received: from relay09.cites.uiuc.edu (relay09.cites.uiuc.edu [128.174.4.86]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBR6IGUD006809 for ; Mon, 27 Dec 2010 00:18:16 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay09.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oBR6I9kr012467 for ; Mon, 27 Dec 2010 00:18:15 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 7CD8E3FE00CF; Mon, 27 Dec 2010 00:18:09 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101227061809.7CD8E3FE00CF@weather3.admin.niu.edu> Date: Mon, 27 Dec 2010 00:18:09 -0600 Reply-To: wxmaster@COX.NET Sender: WX-TROPL Tropical Storm and Hurricane WX products From: SIU Weather Processor Subject: Pacific-NW: Subj/significant Tropical Weather Advisory For The Western And To: WX-TROPL@LISTSERV.ILLINOIS.EDU Precedence: list ABPW10 PGTW 270600 MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND /SOUTH PACIFIC OCEANS/270600Z-280600ZDEC2010// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: (1) AN AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 5.3N 110.7E HAS PERSISTED NEAR 4.4N 109.5E, APPROXIMATELY 330 NM WEST OF BRUNEI. RECENT ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS A LACK OF DEEP CONVECTION ASSOCIATED WITH A WEAK LOW LEVEL CIRCULATION CENTER (LLCC). A 270240Z ASCAT PASS SHOWS STRONG NORTHEASTERLY FLOW ALONG THE NORTHERN PERIPHERY OF THE LLCC WITH WEAK 10 TO 15 KNOT WESTERLY FLOW ALONG THE SOUTHERN PERIPHERY. UPPER LEVEL ANALYSIS INDICATES THE LLCC IS LOCATED EQUATORWARD OF THE SUBTROPICAL RIDGE AXIS IN AN AREA OF MODERATE TO HIGH EASTERLY VERTICAL WIND SHEAR (VWS) AND WEAK DIVERGENCE ALOFT. A 270000Z UPPER AIR SOUNDING APPROXIMATELY 90 NM WEST-SOUTHWEST OF THE LLCC INDICATES 25 TO 30 KNOTS OF VWS. ADDITIONALLY, NEARBY OBSERVATIONS INDICATE SEA LEVEL PRESSURES OF 1005 TO 1008 MB. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS POOR. (2) NO OTHER SUSPECT AREAS. 2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE.// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from WX-TROPL send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with "unsub wx-tropl" in the body of your message. For help with WX-TROPL write to cnovy@cox.net. For more information on tropical weather products, see the NHC Homepage at http://www.nhc.noaa.gov.