From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Wed Oct 20 08:44:31 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 o9K0iURH026403 for ; Wed, 20 Oct 2010 08:44:30 +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 o9JFe7ZH019088; Tue, 19 Oct 2010 19:44:17 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3958929 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Tue, 19 Oct 2010 19:44:16 -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 o9K0iGZe007717 for ; Tue, 19 Oct 2010 19:44:16 -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 o9K0iAkR028361 for ; Tue, 19 Oct 2010 19:44:16 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id C2E5A40501A6; Tue, 19 Oct 2010 19:44:08 -0500 (CDT) X-Proofpoint-Spam-Reason: safe Message-ID: <20101020004408.C2E5A40501A6@weather3.admin.niu.edu> Date: Tue, 19 Oct 2010 19:44:08 -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 216 ATHW40 PHFO 200044 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0030 UTC WED OCT 20 2010 BASED ON DATA THROUGH 0000 UTC OCTOBER 20 2010 THERE HAS BEEN A BIG INCREASE IN CLOUD COVER OVER THE MAIN HAWAIIAN ISLANDS SINCE THIS MORNING. OVERCAST CLOUDS COVER MOST OF THE BIG ISLAND...EXTENDING UPSLOPE NEAR THE SUMMITS OF MAUNA KEA AND MAUNA LOA. CLOUDS REMAIN SCATTERED ONLY ALONG THE COAST AND LOWER SLOPES FROM KEAHOLE POINT TO UPOLU POINT.RADARS HAVE BEEN SHOWING LOCALLY HEAVY SHOWERS OVER THE SOUTHEAST SLOPES OF THE BIG ISLAND BETWEEN VOLCANO AND PAHALA. BROKEN TO OVERCAST CLOUDS ALSO COVER MOST OF EAST MAUI. RADARS SHOW ISOLATED HEAVY SHOWERS NEAR MAKENA. THE WEATHER IS LES ACTIVE FROM KAHULUI NORTHWESTWARD. CLOUDS REMAIN SCATTERED OVER MOST AREAS FROM CENTRAL MAUI TO KAUAI BUT THERE ARE PATCHY BROKEN LOW CLOUDS OVER THE NORTHEAST SLOPES OF THE WEST MAUI MOUNTAINS...OVER THE SOUTH SLOPES OF LANAI...OVER THE MOUNTAINS OF EAST MOLOKAI...OVER BOTH THE KOOLAU AND WAIANAE MOUNTAINS OF OAHU AND OVER THE SOUTHWEST SLOPES OF KAUAI. CLOUDS ARE ISOLATED OVER NIIHAU. LOW CLOUDS AROUND THE MAIN HAWAIIAN ISLANDS ARE MOVING FROM THE NORTHEAST AROUND 10 MPH...FROM A MORE NORTHERLY DIRECTION THAN THE TYPICAL TRADE-WIND FLOW. CLOUDS ARE VERY ISOLATED OVER WATER AROUND THE ISLANDS FROM NIIAHU TO LANAI. A 35 MILE WIDE LINE OF BROKEN LOW CLOUDS EXTENDS 335 MILES NORTHEAST FROM OVER EAST MAUI. BROKEN TO OVERCAST LAYERED CLOUDS EXTEND 90 NM NE OF THE BIG ISLAND. ISOLATED CUMULONIMBUS CLOUDS...CB...HAVE BEEN POPPING UP JUST OFFSHORE OF WINDWARD HAWAII. A 50 TO 150 MILE WIDE FRONTAL CLOUD BAND LIES NORTH OF A LINE FROM 28.5N150W TO 225 MILES NORTH OF KAUAI TO 25N165W TO 30N177W. THE PART OF THE BAND NORTHEAST OF 28N154W CONTAINS DEEP OVERCAST LAYERED CLOUDS AND ISOLATED CUMULONIMBUS CLOUDS...CB...WITH TOPS TO 35000 FT. THE CB HAVE BECOME LESS ACTIVE THAN THEY WERE THIS MORNING. THE PART OF THE BAND WEST OF 154W CONTAINS SHOWERY BROKEN TO OVERCAST LOW CLOUDS. OVER THE PAST 6 HOURS THE PART OF THE FRONTAL BAND EAST OF 165W HAS BEEN MOVING TOWARD THE SOUTHEAST AT 10 MPH WHILE THE PART WEST OF 165W HAS BEEN NEARLY STATIONARY. A SERIES OF SMALL VORTICES HAS FORMED ALONG THE BAND SINCE THIS MORNING AND THE BAND IS STARTING TO FRAGMENT. ONE VORTEX IS NEAR 30N152W...ONE IS ABOUT 300 MILES NORTH OF KAUAI NEAR 26N159W...AND ONE IS NEAR 31N180W. A 500 MILE WIDE AREA OF BROKEN TO OVERCAST LAYERED CLOUDS AND ISOLATED EMBEDDED CB IS SOUTHEAST OF A LINE FROM 30N149W...400 MILES EAST OF HILO TO 10N155W. MOST OF THE CB ARE SOUTHEAST OF A LINE FROM 10N150W TO 15N145W. OVER THE PAST SEVERAL HOURS THIS AREA HAS SHIFTED EAST SLOWLY. IN THE PAST FEW HOURS THE CB NORTH OF 15N HAVE DECREASED...WHILE THOSE SOUTH OF 15N HAVE INTENSIFIED. WATER VAPOR IMAGERY...WHICH SHOWS FEATURES MAINLY ABOVE 24000 FT... SHOWS A TROUGH ALOFT FROM 25N146W OVER THE BIG ISLAND TO 19N160W TO 19N180W. THE PART OF THE TROUGH NEAR THE ISLANDS HAS BEEN MOVING TOWARD THE SOUTHEAST AT 10 MPH. ANOTHER TROUGH ALOFT IS CENTERED FROM 30N152W TO 25N156W. THE SECOND TROUGH HAS BEEN MOVING TOWARD THE EAST SOUTHEAST AT 35 MPH. $$ 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.