From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Tue Nov 2 20:27:56 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 oA2CRsJ2022920 for ; Tue, 2 Nov 2010 20:27:55 +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 oA152esV017565; Tue, 2 Nov 2010 07:27:34 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4174831 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Tue, 2 Nov 2010 07:27:34 -0500 Received: from relay01.cites.uiuc.edu (relay01.cites.uiuc.edu [128.174.4.23]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oA2CRYbm002861 for ; Tue, 2 Nov 2010 07:27:34 -0500 (CDT) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay01.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oA2CRJiY024463 for ; Tue, 2 Nov 2010 07:27:30 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 649FB405001E; Tue, 2 Nov 2010 07:27:19 -0500 (CDT) X-Proofpoint-Spam-Reason: safe Message-ID: <20101102122719.649FB405001E@weather3.admin.niu.edu> Date: Tue, 2 Nov 2010 07:27:19 -0500 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 322 ATHW40 PHFO 021227 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1230 UTC TUE NOV 2 2010 BASED ON DATA THROUGH 1200 UTC NOVEMBER 2 2010 REGIONAL SATELLITE IMAGERY CONTINUES TO SHOW A 200 TO 250 MILE WIDE...NORTHEAST TO SOUTHWEST ORIENTED...DIFFUSE BAND OF BROKEN TO OVERCAST LOW AND MIDDLE CLOUDS TO THE NORTHWEST OF THE ISLANDS. THE BAND/S MOVEMENT HAS REMAINED RELATIVELY A STEADY 10 MPH TOWARD THE SOUTHEAST SINCE MONDAY EVENING...WITH THE LEADING EDGE OF THIS BAND NOW ABOUT 275 MILES NORTHWEST OF KAUAI. BETWEEN THE ISLANDS AND THIS RELATIVELY SHALLOW FRONTAL BOUNDARY...THERE IS AN AREA OF BROKEN HIGH CLOUDS...WITH AN ORIENTATION SIMILAR TO THAT OF THE FRONTAL CLOUD BAND. NEAR THE ISLANDS...RANDOMLY DISTRIBUTED PATCHES OF SCATTERED LOW CLOUDS ARE SEEN MOVING TOWARD THE WEST WITHIN A DIMINISHED TRADE WIND FLOW. IMAGERY CENTERED ON THE ISLANDS REVEALS THAT THE BROKEN TO OVERCAST CUMULUS /CU/ AND STRATOCUMULUS /SC/ THAT WERE OVER KAUAI OAHU AND MOLOKAI...AND ADJACENT WATERS...ON MONDAY EVENING HAVE DECREASED RATHER DRAMATICALLY...APPARENTLY IN RESPONSE TO THE PASSAGE OF SOUTHWARD MOVING GRAVITY WAVES. HIGH CLOUDS HAVE INCREASED OVER THE AREA DURING THE SAME TIME PERIOD...BUT REMAIN RATHER THIN OVER THE ISLANDS AND ADJACENT LEEWARD WATERS...AND ARE A LITTLE THICKER OVER THE WINDWARD WATERS. AS BEST AS CAN BE DETERMINED THROUGH INFRARED IMAGERY...ONLY SCATTERED CU EXIST OVER WATERS AROUND THE ISLANDS... WITH FEW TO SCATTERED TO CU OVER THE ISLANDS...THICKEST OVER THE LOWER WINDWARD SLOPES. LOW CLOUD MOTION NEAR THE ISLANDS REMAINS TOWARD THE WEST AT SPEEDS JUST BELOW 10 MPH...AND RADAR IS DETECTING ONLY SMALL ISOLATED SHOWERS OVER NEAR SHORE WATERS...WITH DRY CONDITIONS OVER THE ISLANDS AT THIS TIME. WATER VAPOR IMAGERY REVEALS A PAIR OF LOWS ALOFT IN THE TROPICAL CENTRAL NORTH PACIFIC...BOTH OF WHICH ARE CUT OFF FROM THE MAIN BELT OF WESTERLIES ALOFT. ONE OF THE LOWS IS NEARLY STATIONARY ABOUT 1050 MILES EAST OF MAUI COUNTY...CENTERED NEAR 21N 141W. ANOTHER SMALLER LOW IS CENTERED ABOUT 950 MILES WEST-SOUTHWEST OF KAUAI...NEAR 20N 174W...AND HS BEEN NEARLY STATIONARY OVER THE PAST 6 HOURS. A LARGE LOW ALOFT...CENTERED FAR NORTH OF THE ISLANDS NEAR ALASKA/S ALEUTIAN ISLANDS...HAS A TROUGH THAT EXTENDS SOUTH-SOUTHEASTWARD TOWARD THE ISLANDS...AND IS LOCATED ALONG A LINE THROUGH 30N 155W TO 25N 160W TO 25N 170W. THIS TROUGH HAS BEEN MOVING TOWARD THE SOUTHEAST NEAR 35 MPH OVER THE PAST 6 HOURS. THE INCREASE IN HIGH CLOUDS NEAR THE ISLANDS APPEARS TO BE RELATED TO THE APPROACH OF THIS RELATIVELY FAST-MOVING TROUGH ALOFT...WITH SOME OF THE HIGH CLOUDS SPREADING EASTWARD FROM CUT OFF LOW LOCATED WELL WEST OF THE ISLANDS. $$ BIRCHARD +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.