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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 10/10/19 1710Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES-17 WV/IR/VIS 1640Z;AMSU PWAT 1510Z;RADAR 1600Z;AMSU RAINRATE 1300Z;GFS 1800Z;JL . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...APRFC... . EVENT...HEAVY RAINFALL OVER EASTERN HALF OF HAWAII . SATELLITE ANALYSIS AND TRENDS...A TROPICAL DISTURBANCE LOCATED EAST AND SOUTHEAST OF THE BIG ISLAND IS BRINGING ROUNDS OF HEAVY RAINFALL TO THE EASTERN PORTIONS OF HAWAII. GOES-16 WV IMAGERY DEPICTS MULTIPLE CELLS OF DEEP MOISTURE OFF SHORE AND POPPING UP ALONG THE EASTERN COASTLINE, ALIGNING WITH RADAR SIGNATURES OF HEAVY RAIN BANDS. THE 12Z SOUNDING FROM HILO DEPICT PW VALUES TOPPING 2" WHERE THE MAJORITY OF THE DEVELOPMENT AND RAIN BANDS ARE APPROACHING. FLOW REMAINS RATHER UNIFORM, MOSTLY SOUTHEASTERLY AND RATHER STRONG, WASHING MULTIPLE BANDS OF PRECIPITATION ASHORE. CAPE IS MODEST, SUGGESTING MOST OF THE PRECIPITATION THREAT COMES FROM THE MULTIPLE BOUTS OF RAINFALL. ADDITIONALLY, THE LATEST AMSU AERIAL AVERAGE RAINRATE PRODUCT SUGGESTS SOME OFF-SHORE RAIN RATES WERE AT LEAST 1 IN/HR WITH SOME LOCALLY HEAVIER RATES POSSIBLE. . SHORT TERM OUTLOOK VALID 1710-2310Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...THROUGHOUT THE AFTERNOON AND EVENING, WOULD EXPECT ROUNDS OF HEAVY RAINFALL TO IMPACT THE EASTERN HALF OF HAWAII AS THE DISTURBANCE SLOWLY PASSES THURSDAY NIGHT AND INTO FRIDAY. SOUTHEASTERLY FLOW SHOULD CONTINUE TO BRING PERIODS OF HEAVY RAIN TO THE EAST OF MAUNA KEA AND MAUNA LOA, MAINLY IMPACTING HILO AND AREAS JUST TO THE SOUTH. PW VALUES SHOULD CONTINUE TO INCREASE AS MOISTURE FROM THE DISTURBANCE IS ADVECTED TO THE AREA WITH SOUTHEASTERLY WINDS. URBAN AREAS AND REGIONS OF STEEP TERRAIN MAY SEE INCREASED FF THREAT. . ....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 2285 16115 2267 15276 1741 15091 1739 16139 . NNNN |
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