From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Nov 29 13:43:43 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 oAT5hg2A004859 for ; Mon, 29 Nov 2010 13:43:42 +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 oASNxXRT000834; Sun, 28 Nov 2010 23:43:25 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4530826 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Sun, 28 Nov 2010 23:43:25 -0600 Received: from relay03.cites.uiuc.edu (relay03.cites.uiuc.edu [128.174.4.69]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oAT5hPUY025076 for ; Sun, 28 Nov 2010 23:43:25 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay03.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oAT5hIOE006679 for ; Sun, 28 Nov 2010 23:43:25 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id D49143FE10DF; Sun, 28 Nov 2010 23:43:18 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101129054318.D49143FE10DF@weather3.admin.niu.edu> Date: Sun, 28 Nov 2010 23:43:18 -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 555 ATHW40 PHFO 290542 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0530 UTC MON NOV 29 2010 BASED ON DATA THROUGH 0500 UTC NOVEMBER 29 2010 THIN...BROKEN TO OVERCAST HIGH...CIRRUS...CLOUDS COVER THE MAIN HAWAIIAN ISLANDS. THE CIRRUS OVER THE ISLAND IS QUITE THIN..BUT IS STILL ENOUGH TO PARTLY OBSCURE THE VIEW OF LOWER LEVEL FEATURES ON NIGHTTIME INFRARED SATELLITE IMAGERY. BEFORE SUNSET...VISIBLE IMAGERY SHOWED BROKEN TO OVERCAST LOW CLOUDS OVER LANAI AND OVER WINDWARD AREAS OF THE REST OF THE SMALLER ISLANDS. LOW CLOUDS WERE SCATTERED OVER LOWER LEE AREAS OF KAUAI...OAHU...MOLOKAI AND MAUI. ON THE BIG ISLAND BEFORE SUNSET...CLOUDS COVERED MOST OF THE ISLAND...EXCEPT THE VERY SUMMITS OF MAUNA KEA AND MAUNA LOA... AND ALONG THE COAST FROM UPOLU POINT TO HILO TO APUA POINT AND FROM KAILUA-KONA TO UPOLU POINT. RADARS SHOW SCATTERED MODERATE SHOWERS OVER THE WINDWARD SLOPES OF KAUAI...OAHU...MOLOKAI AND AND MAUI... BUT ONLY ISOLATED LIGHT SHOWERS OVER THE BIG ISLAND. SATELLITE LOOPS SHOW SHOWERY SCATTERED TO BROKEN LOW CLOUDS MOVING FROM SLIGHTLY NORTH OF EAST AT 20 MPH. RADARS SHOW MODERATE SHOWERS IN THESE CLOUDS. THERE ARE ONLY ISOLATED LOW CLOUDS IMMEDIATELY UPSTREAM OF THE BIG ISLAND OF HAWAII. A CLOUD VORTEX OR SPIRAL IS CENTERED 225 MILES NORTHEAST OF HILO AT 22.5N 153W. THIS FEATURE HAS BEEN MOVING SLIGHTLY NORTH OF WEST AT 9 MPH. THERE ARE SHOWERY BROKEN LOW CLOUDS WITHIN 75 MILES IN THE EAST SEMICIRCLE OF THE VORTEX AND SCATTERED TOWERING CUMULUS CLOUDS WITH TOPS TO 25000FT IN THE WEST SEMICIRCLE. WATER VAPOR IMAGERY SHOWS A PERSISTENT HIGH AMPLITUDE PATTERN OVER THE CENTRAL NORTH PACIFIC WITH ACTIVE WEATHER EAST AND WEST OF THE MAIN HAWAIIAN ISLANDS. ONE LOW ALOFT IS CENTERED 465 MILES NORTHEAST OF HILO AT 23N149.5W. THERE ARE BROKEN MIDDLE AND HIGH CLOUDS AND ISOLATED TOWERING CUMULUS CLOUDS FROM 23N TO 27N BETWEEN 140W AND 150W AND OVERCAST LAYERED CLOUDS AND SCATTERED CUMULONIMBUS CLOUDS WITH TOPS TO 50000 FT FROM 15N TO 23N BETWEEN 141W AND 148W. OVER THE PAST SEVERAL HOURS THE LOW HAS MOVED NORTH AT 10 MPH. THE CLOUDS NORTH OF 23N HAVE THINNED AND BECOME LESS ACTIVE AND THE CLOUDS FROM 15N TO 23N HAVE THICKENED AND THE CONVECTION HAS BECOME MORE ACTIVE OVER THE PAST SEVERAL HOURS. A SECOND LOW ALOFT IS CENTERED 1040 MILES WEST OF KAUAI AT 21N176W...AN UNLIKE THE LOW EAST OF THE ISLANDS...THE WESTERN LOW EXTENDS DOWN TO THE SURFACE. OVER THE PAST SEVERAL HOURS THE LOW HAS MOVED SLOWLY TOWARD THE SOUTHEAST. THERE ARE BROKEN LAYERED CLOUDS FROM 18N TO 30N BETWEEN 165W AND 177W. A 135 MILE WIDE BAND OF SCATTERED CUMULONIMBUS CLOUDS WITH TOPS TO 45000 FT CURVES FROM 19N170W TO 22N170W TO 25N175W. THERE IS A RIDGE ALOFT BETWEEN THE LOW WEST OF THE MAIN HAWAIIAN ISLANDS AND THE ONE TO THE EAST. A JET STREAM CURVES OVER THE TOP OF THE RIDGE FROM 12N180W TO 15N170W TO KAUAI TO THE BIG ISLAND TO 15N145W. BROKEN TO OVERCAST HIGH CLOUDS SOUTH ASSOCIATED WITH THE JET COVER THE MAIN HAWAIIAN ISLANDS. $$ DONALDSON +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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.