From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Dec 20 02:59:59 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 oBJIxvsS013099 for ; Mon, 20 Dec 2010 02:59:58 +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 oBJE6CUI027712; Sun, 19 Dec 2010 12:59:41 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4825140 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Sun, 19 Dec 2010 12:59:41 -0600 Received: from relay06.cites.uiuc.edu (relay06.cites.uiuc.edu [128.174.196.8]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBJIxfgZ021068 for ; Sun, 19 Dec 2010 12:59:41 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay06.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oBJIxYGR022666 for ; Sun, 19 Dec 2010 12:59:40 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 979A23FE085F; Sun, 19 Dec 2010 12:59:34 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101219185934.979A23FE085F@weather3.admin.niu.edu> Date: Sun, 19 Dec 2010 12:59:34 -0600 Reply-To: wxmaster@COX.NET Sender: WX-TROPL Tropical Storm and Hurricane WX products From: LDM Weather Subject: Central Pacific: Satellite Interpretation Message To: WX-TROPL@LISTSERV.ILLINOIS.EDU Precedence: list 483 ATHW40 PHFO 191858 RRA SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE...DELAYED NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1830 UTC SUN DEC 19 2010 BASED ON DATA THROUGH 1800 UTC DECEMBER 19 2010 THE MOST NOTICEABLE CLOUD FEATURE IN THE CENTRAL NORTH PACIFIC IS A WEDGE-SHAPED AREA OF OVERCAST LAYERED CLOUDS...WITH EMBEDDED CUMULONIMBUS...CB...NORTH OF A LINE FROM 25N140W TO 22N156W TO 14N163W TO 08N180W. THE WESTERN EDGE OF THIS CLOUD AREA LIES ALONG A LINE FROM 28N168W TO 20N172W TO 10N180W. A 180 MILE WIDE BAND OF BROKEN TO OVERCAST LAYERED CLOUDS EXTENDS WEST FROM THE MAIN CLOUD AREA...MAINLY NORTH OF A LINE FROM 28N168W TO 20N180W...WRAPPING CYCLONICALLY TOWARD A LOW JUST WEST OF THE DATELINE. COLD CONVECTIVE CLOUD TOPS...LIKELY CB...LIE ALONG THE EASTERN EDGE OF THE MAIN CLOUD AREA SOUTH OF 20N. THE BULK OF THIS CB LIE WITHIN A 60 TO 90 MILE WIDE BAND FROM 20N159W TO 15N163W TO 12N174W TO 09N180W. ISOLATED CB LIE FARTHER TO THE NORTH AND EAST...AFFECTING THE WESTERN HALF OF THE MAIN HAWAIIAN ISLANDS. THESE CB ARE MOVING TOWARD THE NORTHEAST AT ABOUT 15 MPH. SATELLITE LOOP SHOWS THE SUBTROPICAL RIDGE LIES JUST SOUTHEAST OF THE OVERCAST LAYERED CLOUD AREA...WITH AN AXIS EXTENDING ROUGHLY THROUGH 22N140W AND 16N160W. MODERATE TRADE FLOW IS NOTED SOUTH OF THE RIDGE WITHIN SCATTERED TO PATCHY BROKEN LOW CLOUDS. BROKEN TO OVERCAST LAYERED CLOUDS COVER ALL OF THE MAIN HAWAIIAN ISLAND CHAIN...BLOCKING THE VIEW OF LOW CLOUDS THERE. ELSEWHERE...A GALE LOW WAS LOCATED JUST WEST OF THE INTERNATIONAL DATELINE NEAR 20.5N 179.2E...OR ABOUT 610 MILES SOUTH SOUTHWEST OF MIDWAY ATOLL. THIS SYSTEM IS MOVING TOWARD THE SOUTH AT LESS THAN 10 MPH...AND CONTINUES TO EXHIBIT TROPICAL CHARACTERISTICS AS IT MOVES OVER WARMER WATERS. THIS SYSTEM IS MAINTAINING A PERSISTENT RING OF THUNDERSTORMS SURROUNDING ITS WELL DEFINED CENTER. FORECAST MODELS INDICATE THIS SYSTEM WILL TURN BACK TOWARD THE SOUTHEAST OR EAST TODAY...WHICH WILL LIKELY BRING IT BACK INTO THE CENTRAL PACIFIC HURRICANE CENTER AREA OF RESPONSIBILITY LATER TODAY OR TONIGHT. FOR ADDITIONAL INFORMATION ON THIS GALE LOW...SEE THE HIGH SEAS FORECAST ISSUED FOR THE NORTH PACIFIC OCEAN BY THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN HONOLULU...HAWAII UNDER AWIPS HEADER HSFNP...OR WMO HEADER FZPN40 PHFO. $$ POWELL +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.