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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 03/04/20 0713Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: 200304/0640 GOES17 CH13 IR_10.4 . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...AKRFC... . EVENT...SHOWERS AND THUNDERSTORMS OVER EASTERN BIG ISLAND NEAR HILO . SATELLITE ANALYSIS AND TRENDS...THE LATEST GOES17 IR IMAGERY OBSERVED UNSETTLED WEATHER OVER THE SOUTHERN PART OF THE STATE WITH AN UPPER LEVEL LOW NORTH OF THE STATE. MOISTURE IS BEING TRANSPORTED INTO THE REGION WITH FAIRLY STRONG SOUTH EASTERLY TRADE WINDS ACROSS THE BIG ISLAND ACCORDING TO LATEST UA RAOB SOUNDING DATA FROM PHTO. TPW VALUES OF AROUND 1.62" AND SBCAPE VALUES OF GREATER THAN 1100 J/KG WAS ALSO OBSERVED IN UA RAOB SOUNDING FROM THE BIG ISLAND. THE LATEST RADAR LOOPS OBSERVED ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORM OVER THE EASTERN PART OF THE BIG ISLAND. . 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 0700-1100Z...LOW CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...STRONG LOW LEVEL MOISTURE TRANSPORT AND INCREASED SHOWER AND THUNDERSTORM ACTIVITY ACROSS THE BIG ISLAND IS STILL POSSIBLE OVER THE FORECAST PERIOD BUT LOW CONFIDENCE IN FORECAST DUE TO UNCERTAINTY IN EXACT LOCATION OF CONVECTIVE ACTIVITY THAT COULD IMPACT THE ISLAND. THE LATEST MESO NET DATA FROM REPORTS ACROSS EASTERN PARTS OF THE BIG ISLAND OBSERVED MAINLY LOW END HOURLY RAINFALL RATES AROUND 0.25" WHICH SHOULD LIMIT ANY HEAVY RAINFALL RISK OVER THE FORECAST PERIOD BUT UNSTABLE AND MOIST ENVIRONMENT STILL PRESENT IN THE REGION SO HEAVY RAINFALL STILL POSSIBLE ESPECIALLY EARLY IN THE FORECAST PERIOD ACROSS LEEWARD SIDE OF THE BIG ISLAND UNTIL UPPER LEVEL LOW PROGRESS AWAY FROM THE 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 2370 15305 1771 15181 1729 16289 2325 16314 . NNNN |
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