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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 08/06/19 1824Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: 190806/1750 GOES17 CH09 WV_6.9 . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...AKRFC... . EVENT...MODERATE TO HEAVY RAINFALL OVER KAUAI ISLAND REGION . SATELLITE ANALYSIS AND TRENDS...THE LATEST GOES17 IR IMAGERY OBSERVED A REGION OF COLD/HIGH CLOUD TOPS ASSOCIATED WITH A CONVECTIVE CELL IN THE KAUAI ISLAND REGION. A SECOND CONVECTIVE CELL WAS ALSO OBSERVED WEST OF THE BIG ISLAND BUT MOST OF THE HEAVY SHOWER AND THUNDERSTORM ACTIVITY HAS REMAINED OFFSHORE. POST TD FLOSSIE SYNOPTIC LIFT ALONG WITH UPPER LEVEL LOW MOIST OUTFLOW INTERACTION HAS HELPED PROMOTE CONVECTIVE DEVELOPMENT IN THE NORTHERN AND WESTERN PART OF THE STATE. MODERATE TO HEAVY RAINFALL HAS BEEN OBSERVED CLOSE TO KAUAI ISLAND IN RECENT RADAR LOOPS. THE HAWAIIAN ISLANDS ARE IN A REGION OF HIGHER TPW WITH VALUES GREATER THAN 2.0". THE LATEST UA RAOB SOUNDING DATA FROM PHTO OBSERVED TPW AROUND 2.1" ALONG WITH SOUTHERLY UNI DIRECTIONAL FLOW FROM SURFACE TO ABOUT 700 MB IN THE LOWER LEVELS. THE LATEST GOES17 VIS IMAGERY OBSERVED THE SMALL REGION OF CONVECTIVE CELL DEVELOPMENT EVIDENT IN THE IMAGERY AND EFFECTING THE KAUAI ISLAND REGION. . AN ANNOTATED SATELLITE GRAPHIC SHOWING THE HEAVY PRECIPITATION THREAT AREA SHOULD BE AVAILABLE ON THE INTERNET ADDRESS LISTED BELOW IN APPROXIMATELY 10-15 MINUTES. . SHORT TERM OUTLOOK VALID 1800-2100Z...LOW CONFIDENCE FACTOR IN SHORT TERM OUTLOOK... THE MEAN WIND FLOW APPEARS TO BE PROGRESSING MOST OF THE CONVECTIVE CELLS FROM THE SW OFF TO THE NE. THE LATEST GOES17 VIS IMAGERY APPEARS TO BE SIGNALING FURTHER DOWNSTREAM CONVECTIVE DEVELOPMENT SO MODERATE TO HEAVY RAINFALL LOOKS LIKELY OVER THE FORECAST PERIOD IN KAUAI ISLAND REGION. . ....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP).... ....NESDIS IS A MEMBER OF 12 PLANET.... . FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL SSDPrecip@noaa.gov . FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB: http://www.ospo.noaa.gov/Products/atmosphere/spe/ . FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB: http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php . LAT...LON 2533 15313 1847 15300 1785 16254 2390 16233 . NNNN |
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