From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Mon Sep 27 13:20:43 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 o8R5KfhL022545 for ; Mon, 27 Sep 2010 13:20:42 +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 o8R3jlI8019148; Mon, 27 Sep 2010 00:20:26 -0500 (CDT) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 3605690 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Mon, 27 Sep 2010 00:20:23 -0500 Received: from relay08.cites.uiuc.edu (relay08.cites.uiuc.edu [128.174.196.9]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id o8R5KN4B020313 for ; Mon, 27 Sep 2010 00:20:23 -0500 (CDT) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay08.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id o8R5KGhd025628 for ; Mon, 27 Sep 2010 00:20:22 -0500 (CDT) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id 54DD4405001E; Mon, 27 Sep 2010 00:20:16 -0500 (CDT) X-Spam-Score: 0 X-Spam-Details: rule=no-quarantine_notspam policy=no-quarantine score=0 spamscore=0 ipscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=5.0.0-1005130000 definitions=main-1009260206 X-Spam-OrigSender: ldm@weather3.admin.niu.edu X-Spam-Bar: Message-ID: <20100927052016.54DD4405001E@weather3.admin.niu.edu> Date: Mon, 27 Sep 2010 00:20:16 -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 053 ATHW40 PHFO 270519 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 0530 UTC MON SEP 27 2010 BASED ON DATA THROUGH 0500 UTC SEPTEMBER 27 2010 TWO PARALLEL CLOUD BANDS ASSOCIATED WITH A FRONT EXTENDED ACROSS THE OCEAN NORTH OF THE MAIN HAWAIIAN ISLANDS. THE PRIMARY FRONTAL CLOUD BAND WAS LOCATED WITHIN 60 MILES OF THE CURVE FROM 30N 178W TO 28N 169W TO 30N 159W AND FURTHER NORTHEAST. A PRE-FRONTAL CLOUD BAND WAS LOCATED WITHIN 60 MILES OF THE CURVE FROM 25N 165W TO 27N 155W TO 30N 150W AND FURTHER NORTHEAST...THOUGH CUMULUS AND STRATOCUMULUS CLOUD FRAGMENTS FURTHER TO THE WEST AND NORTHWEST SHOWED SIGNS OF MERGING INTO AN EXTENSION OF THIS BAND. BOTH FEATURES CONSISTED OF NEARLY SOLID MIDDLE TO LOW CLOUD LAYERS...AND SHIFTED TOWARD THE SOUTHEAST SLOWLY. TO THE SOUTH...LIGHT THUNDERSTORM ACTIVITY CONTINUED IN THE ITCZ BETWEEN 13N AND 03N...MOSTLY WEST OF 154W. 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 14N TO 03N...AND PARTLY AS FAR AS 17N. WATER VAPOR IMAGES SHOWED A CENTER OF LOW PRESSURE IN THE UPPER ATMOSPHERE JUST TO THE SOUTHWEST OF THE MAIN HAWAIIAN ISLANDS. THIS LOW SLIGHTLY ENHANCED SHOWERS FROM ISLAND LEE PLUMES PASSING UNDER IT...BUT HAD LITTLE EFFECT OTHERWISE. ELSEWHERE...CLOUD COVER ACROSS HAWAIIAN WATERS CONSISTED MAINLY OF LOOSE BANDS OR CLUMPS OF MARINE STRATOCUMULI AND CUMULI LOCATED BETWEEN THE CURVE FROM 19N 180 TO 22N 156W TO 29N 140W...AND THE CURVE FROM 11N 180 TO 17N 164W TO 15N 152W TO 18N 140W. THE CLUMPS VARIED IN SIZE FROM INDIVIDUAL SMALL CUMULI TO ONE LARGE CLUMP ABOUT 450 MILES LONG AND 350 MILES WIDE. THESE CLOUDS GENERALLY ROSE TO HEIGHTS OF 8000 TO 10000 FEET...AND MOVED TOWARD THE SOUTHWEST TO WEST AT AROUND 10 MILES AN HOUR. ACROSS THE MAIN HAWAIIAN ISLANDS...CLOUD COVER CONSISTED MOSTLY OF AFTERNOON CUMULUS BUILDUPS AND THEIR LAYERED DEBRIS CLOUDS OVER HIGHER TERRAIN INLAND...THOUGH A FEW MARINE CUMULI AND STRATOCUMULI ALSO MOVED ASHORE ALONG SLOPES FACING EAST. AREAS WITH THE GREATEST CLOUD COVER INCLUDED NORTHWEST KAUAI...BOTH MOUNTAIN RANGES ON OAHU...CENTRAL MOLOKAI...CENTRAL LANAI...THE WEST MAUI MOUNTAINS... NORTHWEST THROUGH NORTHEAST SLOPES OF HALEAKALA ON MAUI...AND MOST OF THE BIG ISLAND EXCEPT FOR THE SUMMITS OF MAUNA KEA AND MAUNA LOA. THESE CLOUDS VARIED IN HEIGHT FROM AROUND 3000 FEET TO NEAR 9000 FEET. RADAR DATA FROM NEAR THE ISLANDS SHOWED SCATTERED SHOWERS OFFSHORE IN THE LEE PLUME SOUTHWEST OF MAUI COUNTY...BUT ISOLATED SHOWERS AT MOST ELSEWHERE. $$ 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.