From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Wed Sep 29 13:24:53 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 o8T5Op0i005767 for ; Wed, 29 Sep 2010 13:24:52 +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 o8SJFqMV025335; Wed, 29 Sep 2010 00:24:34 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3648823 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Wed, 29 Sep 2010 00:24:32 -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 o8T5OV7j026032 for ; Wed, 29 Sep 2010 00:24:31 -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 o8T5OPH5002327 for ; Wed, 29 Sep 2010 00:24:31 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 55F5D4050030; Wed, 29 Sep 2010 00:24:25 -0500 (CDT) X-Proofpoint-Spam-Reason: safe Message-ID: <20100929052425.55F5D4050030@weather3.admin.niu.edu> Date: Wed, 29 Sep 2010 00:24:25 -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 165 ATHW40 PHFO 290524 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0530 UTC WED SEP 29 2010 BASED ON DATA THROUGH 0500 UTC SEPTEMBER 29 2010 WATER VAPOR IMAGES SHOWED A BROAD AREA OF LOW PRESSURE IN THE UPPER ATMOSPHERE CENTERED NEAR 23N 174W. ISOLATED TOWERING CUMULI AND PROBABLE THUNDERSTORMS DEVELOPED ALONG THE NORTHWEST THROUGH NORTH EDGES OF THE LOW...PRODUCING PLENTIFUL MIDDLE TO HIGH DEBRIS CLOUDS THAT MOSTLY TO PARTLY OBSCURED LOWER FEATURES WITHIN THE CURVE FROM 27N 178W TO 27N 171W TO 23N 175W TO 19N 175W TO 21N 180 TO 26N 178W. THE LOW AND ITS ASSOCIATED CLOUDS DRIFTED WEST SLOWLY. A SLOWLY DISSIPATING BAND OF CLOUDS ASSOCIATED WITH A WEAKENING FRONT EXTENDED ACROSS HAWAIIAN WATERS WITHIN 100 MILES OF THE CURVE FROM 26N 180 TO 29N 174W TO 26N 166W TO 25N 160W TO 23N 154W TO 28N 143W TO 30N 141W AND FURTHER NORTH. THIS FEATURE CONSISTED MOSTLY OF MIDDLE TO LOW CLOUD LAYERS. DIFFERENT PARTS OF IT MOVED IN DIFFERENT DIRECTIONS...WITH THE NORTHWEST END DRIFTING WEST SLOWLY...AND THE CENTRAL AND SOUTHEAST PARTS FLOWING SOUTH AT 5 TO 10 MILES AN HOUR. TO THE SOUTH...LIGHT TO MODERATE THUNDERSTORM ACTIVITY CONTINUED IN THE ITCZ BETWEEN 16N AND 06N. ALTHOUGH SEVERAL WEAK CENTERS OF LOW PRESSURE WERE PRESENT IN THE ITCZ...THEY DID NOT APPEAR TO BE ASSOCIATED WITH PERSISTENT THUNDERSTORM ACTIVITY. LAYERED MIDDLE TO HIGH DEBRIS CLOUDS FROM THIS AND EARLIER CONVECTION OBSCURED LOWER FEATURES MOSTLY FROM 15N TO 05N...AND PARTLY BETWEEN 19N AND 02N. OTHERWISE...CLOUD COVER ACROSS HAWAIIAN WATERS CONSISTED MAINLY OF LOOSE BANDS OR CLUMPS OF MARINE STRATOCUMULI AND CUMULI WITHIN 100 MILES OF THE LINE FROM 20N 171W TO 22N 164W...AND NORTHEAST OF THE CURVE FROM 29N 140W TO 23N 145W TO 20N 153W TO 14N 143W TO 17N 140W. THESE CLUMPS VARIED IN SIZE FROM INDIVIDUAL SMALL CUMULI UP TO ABOUT 200 MILES ACROSS. THEY GENERALLY ROSE TO HEIGHTS OF 8000 TO 10000 FEET...AND MOVED TOWARD THE SOUTHWEST TO WEST SLOWLY. ACROSS THE MAIN HAWAIIAN ISLANDS...CLOUD COVER CONSISTED MOSTLY OF AFTERNOON CUMULUS BUILDUPS AND THEIR LAYERED DEBRIS CLOUDS OVER HIGHER TERRAIN INLAND. AREAS WITH THE GREATEST CLOUD COVER INCLUDED THE NORTHWEST TWO THIRDS OF KAUAI...WEST CENTRAL OAHU...INLAND LANAI...MIDDLE SLOPES OF HALEAKALA ON MAUI...MOST MIDDLE SLOPES OF THE BIG ISLAND...AND MOST LOWER SLOPES OF THE BIG ISLAND CLOCKWISE FROM KAU DISTRICT TO SOUTH KOHALA DISTRICT. THESE CLOUDS VARIED CONSIDERABLY IN HEIGHT FROM 4000 FEET TO 10000 FEET. RADAR DATA FROM NEAR THE ISLANDS SHOWED LITTLE PRECIPITATION. $$ 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.