From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Fri Oct 22 13:41:38 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 o9M5fbHP005405 for ; Fri, 22 Oct 2010 13:41:37 +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 o9LH2fA1000583; Fri, 22 Oct 2010 00:41:16 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3993083 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Fri, 22 Oct 2010 00:41:13 -0500 Received: from relay10.cites.uiuc.edu (relay10.cites.uiuc.edu [128.174.196.10]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id o9M5fBkM028556 for ; Fri, 22 Oct 2010 00:41:11 -0500 (CDT) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay10.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id o9M5f4rW002768 for ; Fri, 22 Oct 2010 00:41:11 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id D8CB6108B0002; Fri, 22 Oct 2010 00:41:04 -0500 (CDT) X-Proofpoint-Spam-Reason: safe Message-ID: <20101022054104.D8CB6108B0002@weather3.admin.niu.edu> Date: Fri, 22 Oct 2010 00:41:04 -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 450 ATHW40 PHFO 220540 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0530 UTC FRI OCT 22 2010 BASED ON DATA THROUGH 0500 UTC OCTOBER 22 2010 LOW CLOUDS HAVE INCREASED OVER THE MAIN HAWAIIAN ISLANDS SINCE DAYBREAK...WHILE CLOUDS COVERAGE UPSTREAM OF THE ISLANDS HAS REMAINED THE SAME. HIGH CLOUDS CONTINUE TO STREAM FROM WEST TO EAST ABOUT 75 MILES SOUTH OF THE BIG ISLAND DUE TO THE UPPER LEVEL WIND FLOW ON THE SOUTH AND EAST SIDE OF THE UPPER LEVEL TROUGH. THE UPPER LEVEL TROUGH THAT HAS LINGERED NEAR THE ISLANDS FOR THE PAST SEVERAL DAYS IS STILL NEAR THE ISLANDS AT 2 PM. THE ASSOCIATED UPPER LEVEL LOW HAS MOVED TO THE NORTHEAST OVER THE LAST SIX HOURS...AND IS ABOUT 2300 MILES TO THE NORTH NORTHEAST OF HONOLULU AT 2 PM. AS MENTIONED ABOVE...CLOUD COVERAGE HAS INCREASED OVER THE MAIN HAWAIIAN ISLANDS OVER THE LAST SIX HOURS...BUT CLOUDS DO NOT COVER AS MUCH OF THE ISLANDS AS THEY DID 24 HOURS AGO. JUST A FEW CLOUDS ARE FOUND OVER NIIHAU AND KAHOOLAWE THIS AFTERNOON. ON KAUAI... SCATTERED CLOUDS COVER MOST OF THE ISLAND. MEANWHILE CLOUDS ARE THICKEST OVER THE KOOLAU RANGE ON OAHU...BUT HAVE ALSO SPREAD INTO THE CENTRAL VALLEY AND OVER THE WAIANAE RANGE. SCATTERED CLOUDS ARE FOUND ACROSS MOLOKAI AND LANAI THIS AFTERNOON...AND OVER MOST OF THE WEST MAUI AND HALEAKALA SLOPES ON MAUI. ON THE BIG ISLAND BROKEN CLOUDS COVER MOST OF THE ISLAND. THE AREAS WITH THE FEWEST CLOUDS ARE THE EASTERN PORTION OF THE PUNA DISTRICT...AND THE COASTAL AREAS OF THE SOUTH KOHALA DISTRICT. CLOUD COVER OVER THE MAIN HAWAIIAN ISLANDS HAS DECREASED SINCE MID-AFTERNOON AS CLOUDS PRODUCED BY AFTERNOON HEATING HAVE STARTED TO DISSIPATE. CLOUDS ARE ISOLATED OVER MOST AREAS FROM NIIHAU TO MAUI BUT THERE ARE SMALL PATCHES OF BROKEN LOW CLOUDS HERE AND THERE. RADARS SHOW SCATTERED MODERATE SHOWERS FORMING ALONG THE KOOLAU MOUNTAINS OF OAHU BUT NO OTHER PRECIPITATION FROM NIIHAU TO MAUI. THERE ARE STILL BROKEN LOW CLOUDS OVER MOST LOWLAND AREAS OF THE BIG ISLAND OF HAWAII WITH CLEAR SKIES OVER THE UPPER SLOPES OF MAUNA KEA AND MAUNA LOA AND ONLY ISOLATED LOW CLOUDS NEAR CAPE KUMUKAHI AND SOUTH CAPE AND ALONG THE COAST OF LEEWARD KOHALA. THERE ARE AREAS OF BROKEN LOW CLOUDS OVER WATER NORTH OF KAUAI... NORTHWEST THROUGH NORTHEAST OF OAHU...SOUTHWEST OF THE ISLANDS OF MAUI COUNTY AND NORTH OF THE WINDWARD KOHALA DISTRICT AND WEST OF THE SOUTH KONA DISTRICT OF THE BIG ISLAND. CLOUDS MOTIONS NEAR THE ISLANDS ARE QUITE VARIABLE. LOW CLOUDS EAST OF THE BIG ISLAND ARE MOVING FROM THE EAST AROUND 10 MPH. IT APPEARS THAT THE FLOW DIVERGES AROUND THE ISLANDS WITH THE FLOW FROM THE EAST SOUTHEAST OFF THE WINDWARD SIDES OF THE ISLANDS AND FROM THE EAST NORTHEAST IN THE AREA SOUTHEAST OF THE BIG ISLAND. SOME REMNANTS OF AN OLD FRONTAL BAND REMAIN NORTH OF THE MAIN HAWAIIAN ISLANDS. THESE AREAS OF LOW CLOUDS HAVE STRETCHED OUT FROM WEST SOUTHWEST TO EAST NORTHEAST AHEAD OF A NEWER FRONTAL BAND 590 MILES NORTH NORTHWEST OF KAUAI. ONE FRAGMENT OF THE OLD FRONT RUNS FROM 26N145W TO 30N144W AND ANOTHER RUNS FROM 27N158W TO 30N150W. THESE FRAGMENTS ARE 100 TO 150 MILE WIDE BANDS OF SHOWERY BROKEN TO OVERCAST LOW CLOUDS. WATER VAPOR IMAGERY SHOWS A TROUGH ALOFT FROM 25N140W...OVER THE BIG ISLAND TO A LOW ALOFT NEAR 13N179E. THE PART OF THE TROUGH EAST OF 150W HAS BEEN MOVING SOUTHEAST SLOWLY WHILE THE REST OF THE TROUGH HAS BEEN NEARLY STATIONARY. A JET STREAM ASSOCIATED WITH THE TROUGH RUNS FROM 16N180W TO 17N175W TO 60 MILES SOUTH OF THE BIG ISLAND TO 23N140W. THERE ARE BROKEN TO OVERCAST CIRRUS CLOUDS SOUTHEAST OF THE JET. THERE IS ALSO AN AREA OF SCATTERED TO BROKEN CIRRUS NORTH OF 25N EAST OF 170W. $$ 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.