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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 06/24/19 0129Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES 15/17 WV/VIS 01Z; AMSU 89GHz 0050Z; FCS . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...AKRFC... . EVENT...HEAVY RAINFALL OVER NORTHERN HAWAIIAN ISLANDS NIIHAU AND KAUAI OAHU. . SATELLITE ANALYSIS AND TRENDS...RECENT SATELLITE IMAGERY SHOWS AN UPPER TROUGH AND CYCLONIC UPPER CIRCULATION NEAR 31N/165W WITH COOLING TOPS INDICATING AN ACTIVE ENVIRONMENT FOR HEAVY RAINFALL OVER THE NORTHERN HAWAIIAN ISLANDS ON IR IMAGERY. A SHORT WAVE WITH ITS INFLECTION POINT AT 20.5N/161.4 AT THE BASE OF THE UPPER LEVEL TROUGH SOUTHWEST OF THE HAWAIIAN ISLAND CHAIN WILL ADVANCE TOWARDS THE ISLANDS PRODUCING POSITIVE VORTICITY ADVECTION ENHANCING UPWARD VERTICAL VELOCITY FIELDS AHEAD OF ITS APPROACH TO HAWAIIAN ISLANDS OF NIIHAU AND KAUAI. GOES 15 VISIBLE IMAGERY SHOWS CUMULUS CLOUDS CONVERGING FROM THE SOUTHEAST AND SOUTHWEST INTO A LARGE GROWING AREA OF THUNDERSTORMS WITH CIRRUS ANVIL TOPS FROM GROWING CONVECTION INTO THE WESTERN HAWAIIAN ISLANDS AHEAD OF A TRAILING COLD FRONT. AMSU SATELLITE MOISTURE ESTIMATES RANGE FROM 2.0-2.25 INCHES PW. THE 00Z LIHUE SOUNDING HAD 2500+ J/KG CAPE, A BUOYANT LIFTED INDEX -8C AND 2.0 PW. THETA E QUANTITIES EXCEED 340 K OVER THE WESTERN HAWAIIAN ISLANDS. THERE IS A FLASH FLOOD POTENTIAL BASED ON THE SYNOPTIC SET UP AND THERMODYNAMICS OVER HAWAIIAN ISLANDS OF NIIHAU, KAUAI, OAHU. . 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 0130-0630Z...HIGH CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...A HEAVY RAINFALL POTENTIAL EXIST FOR THE NORTHERN HAWAIIAN ISLANDS. RADAR TRENDS SHOW HEAVIER ECHOES APPROACHING NIIHAU AND KAUAI WITH LIGHTNING EMBEDDED WITHIN THE CONVECTION. SURFACE OBSERVATIONS INDICATE RAPIDLY FALLING PRESSURES OVER KAUAI AND HEAVY RAINFALL REPORTS ARE OCCURRING OVER LIHUE. EXPECT HEAVY RAINFALL WITH A POTENTIAL FOR FLASH FLOODING FOR THE NORTHERN AND WESTERN HAWAIIAN ISLANDS. . ....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 2315 15825 1862 15264 1865 15686 2297 16257 2304 16257 . NNNN |
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