From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Thu Sep 30 20:19:42 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 o8UCJeFo012699 for ; Thu, 30 Sep 2010 20:19:41 +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 o8TLcUBp025335; Thu, 30 Sep 2010 07:19:20 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3671541 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Thu, 30 Sep 2010 07:19:20 -0500 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 o8UCJJcK023969 for ; Thu, 30 Sep 2010 07:19:19 -0500 (CDT) 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 o8UCJDf3005648 for ; Thu, 30 Sep 2010 07:19:19 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 5A2754050030; Thu, 30 Sep 2010 07:19:13 -0500 (CDT) X-Proofpoint-Spam-Reason: safe Message-ID: <20100930121913.5A2754050030@weather3.admin.niu.edu> Date: Thu, 30 Sep 2010 07:19:13 -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 788 ATHW40 PHFO 301219 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1230 UTC THU SEP 30 2010 BASED ON DATA THROUGH 1200 UTC SEPTEMBER 30 2010 WATER VAPOR IMAGES SHOWED A BROAD AREA OF LOW PRESSURE IN THE UPPER ATMOSPHERE CENTERED NEAR 26N 177W. ALTHOUGH THUNDERSTORM ACTIVITY UNDER THIS FEATURE HAD STOPPED EAST OF 180...THIN LAYERED DEBRIS CLOUDS FROM EARLIER CONVECTION STILL PARTLY OBSCURED LOWER FEATURES WEST OF THE CURVE FROM 27N 180 TO 26N 175W TO 21N 180. THE LOW AND ITS ASSOCIATED CLOUDS DRIFTED WEST SLOWLY. THE FRONTAL CLOUD BAND FORMERLY LOCATED OVER HAWAIIAN WATERS HAD FRAGMENTED TO THE POINT WHERE IT NO LONGER COULD BE DISTINGUISHED FROM THE MARINE STRATOCUMULI LOCATED NORTH AND SOUTHEAST OF IT. LOOSE BANDS AND CLUMPS OF THESE CLOUDS UP TO 200 MILES WIDE AND 1200 MILES LONG NOW PREVAILED NORTH OF THE CURVE FROM 27N 180 TO 19N 156W TO 19N 140W. INDIVIDUAL SMALL CUMULI ALSO WERE PRESENT THROUGHOUT THE AREA. THESE CLOUDS GENERALLY ROSE TO HEIGHTS OF 8000 TO 12000 FEET...AND DRIFTED SOUTH SLOWLY. TO THE SOUTH...LIGHT THUNDERSTORM ACTIVITY CONTINUED IN THE ITCZ BETWEEN 19N AND 06N. LAYERED MIDDLE TO HIGH DEBRIS CLOUDS FROM THIS AND EARLIER CONVECTION OBSCURED LOWER FEATURES MOSTLY FROM 19N TO 05N...AND PARTLY AS FAR NORTH AS 25N TO THE WEST OF 170W. ACROSS THE MAIN HAWAIIAN ISLANDS...CLOUD COVER CONSISTED MOSTLY OF STRATUS LAYERS AND CUMULUS FRAGMENTS ASSOCIATED WITH THE FORMER FRONTAL CLOUD BAND MOVING ASHORE ALONG NORTH SLOPES. THE GREATEST MASS OF CLOUD COVER HAD PASSED SOUTH OF MAUI COUNTY AND NOW APPROACHED THE BIG ISLAND...BUT THE CUMULI APPROACHING OAHU SHOWED MORE VERTICAL DEVELOPMENT...SUGGESTING STRONGER SHOWERS. THESE CLOUDS VARIED CONSIDERABLY IN HEIGHT FROM 3000 FEET TO 13000 FEET... THOUGH THE CLOUDS ASSOCIATED WITH THE FRONTAL CLOUD BAND MORE UNIFORMLY APPROACHED THE HIGHER END OF THAT RANGE. RADAR DATA FROM NEAR THE ISLANDS SHOWED AREAS OF MODERATE TO HEAVY RAIN IN THE KAUAI CHANNEL AND OFFSHORE TO THE NORTHEAST OF OAHU...BUT LITTLE PRECIPITATION OTHERWISE. $$ RYSHKO +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.